11 | 12 | {label} 13 | 14 |
15 |

21 |     </div>
22 |   );
23 | }
24 |

--------------------------------------------------------------------------------
/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "es5",
 4 |     "lib": [
 5 |       "dom",
 6 |       "dom.iterable",
 7 |       "esnext"
 8 |     ],
 9 |     "allowJs": true,
10 |     "skipLibCheck": true,
11 |     "strict": true,
12 |     "forceConsistentCasingInFileNames": true,
13 |     "noEmit": true,
14 |     "esModuleInterop": true,
15 |     "module": "esnext",
16 |     "moduleResolution": "node",
17 |     "resolveJsonModule": true,
18 |     "isolatedModules": true,
19 |     "jsx": "preserve",
20 |     "baseUrl": "src",
21 |     "incremental": true
22 |   },
23 |   "include": [
24 |     "src/**/*"
25 |   ],
26 |   "exclude": [
27 |     "node_modules"
28 |   ]
29 | }
30 |

--------------------------------------------------------------------------------
/src/lib/useAxios.ts:
--------------------------------------------------------------------------------
 1 | import { useEffect, useCallback } from "react";
 2 | import Axios from "axios";
 3 | 
 4 | // Fetch data with axios and enforce ordered delivery via cancellation
 5 | export function useAxios(
 6 |   url: string,
 7 |   onSuccess: (data: any) => void,
 8 |   deps: unknown[]
 9 | ) {
10 |   // eslint-disable-next-line react-hooks/exhaustive-deps
11 |   const memo = useCallback(onSuccess, deps);
12 |   useEffect(() => {
13 |     let canceled = false;
14 |     Axios.get(url)
15 |       .then(({ data }) => {
16 |         if (!canceled) {
17 |           memo(data);
18 |         }
19 |       })
20 |       .catch((e) => console.log(e));
21 |     return () => {
22 |       canceled = true;
23 |     };
24 |   }, [memo, url]);
25 | }
26 |

--------------------------------------------------------------------------------
/src/pages/_document.js:
--------------------------------------------------------------------------------
 1 | import Document, { Html, Head, Main, NextScript } from "next/document";
 2 | 
 3 | class MyDocument extends Document {
 4 |   static async getInitialProps(ctx) {
 5 |     const initialProps = await Document.getInitialProps(ctx);
 6 |     return { ...initialProps };
 7 |   }
 8 | 
 9 |   render() {
10 |     return (
11 |       <Html>
12 |         <Head>
13 |           <link
14 |             rel="stylesheet"
15 |             href="https://use.fontawesome.com/releases/v5.7.1/css/all.css"
16 |             integrity="sha384-fnmOCqbTlWIlj8LyTjo7mOUStjsKC4pOpQbqyi7RrhN7udi9RwhKkMHpvLbHG9Sr"
17 |             crossOrigin="anonymous"
18 |           />
19 |         </Head>
20 |         <body>
21 |           <Main />
22 |           <NextScript />
23 |         </body>
24 |       </Html>
25 |     );
26 |   }
27 | }
28 | 
29 | export default MyDocument;
30 |

--------------------------------------------------------------------------------
/src/components/questions/GridQuestion.tsx:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import { useField } from "informed";
 3 | import { GridAnswer } from "lib/types";
 4 | import Grid from "./Grid";
 5 | 
 6 | interface GridQuestionProps {
 7 |   field: string;
 8 |   label: string;
 9 |   id: string;
10 | }
11 | 
12 | // Make GridQuestion play nice with the informed library
13 | // https://joepuzzo.github.io/informed/?selectedKind=CustomInputs&selectedStory=Creating Custom Inputs
14 | const GridQuestion = (props: GridQuestionProps) => {
15 |   const { fieldState, fieldApi } = useField<GridAnswer>(props);
16 |   const { value } = fieldState;
17 |   const { setValue } = fieldApi;
18 |   return (
19 |     <Grid
20 |       x={value?.x || 0.5}
21 |       y={value?.y || 0.5}
22 |       onClick={setValue}
23 |       label={props.label}
24 |     />
25 |   );
26 | };
27 | 
28 | export default GridQuestion;
29 |

--------------------------------------------------------------------------------
/src/components/questions/MultipleChoiceQuestion.tsx:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import { RadioGroup, Radio } from "informed";
 3 | import { MCQuestion, QuestionBaseProp } from "lib/types";
 4 | 
 5 | export default function MultipleChoiceQuestion({
 6 |   id,
 7 |   label,
 8 |   choices,
 9 | }: MCQuestion & QuestionBaseProp) {
10 |   return (
11 |     <div>
12 |       <label className="questionTitle" htmlFor={id}>
13 |         {label}
14 |       </label>
15 |       <RadioGroup id={id} field={id}>
16 |         {choices.map((choice: string, idx: number) => {
17 |           const choiceId = `radio${id}-${idx}`;
18 |           return (
19 |             <>
20 |               <br />
21 |               <Radio key={choiceId} value={choice} id={choiceId} />
22 |               <label key={`label${choiceId}`} htmlFor={choiceId}>
23 |                 {choice}
24 |               </label>
25 |             </>
26 |           );
27 |         })}
28 |       </RadioGroup>
29 |     </div>
30 |   );
31 | }
32 |

--------------------------------------------------------------------------------
/src/components/questions/ScaleQuestion.tsx:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import { RadioGroup, Radio } from "informed";
 3 | import {
 4 |   ScaleQuestion as ScaleQuestionProps,
 5 |   QuestionBaseProp,
 6 | } from "lib/types";
 7 | 
 8 | export default function ScaleQuestion({
 9 |   id,
10 |   label,
11 |   choices,
12 | }: ScaleQuestionProps & QuestionBaseProp) {
13 |   return (
14 |     <div>
15 |       <label className="questionTitle" htmlFor={id}>
16 |         {label}
17 |       </label>
18 |       <RadioGroup id={id} field={id}>
19 |         <ul className="likert">
20 |           {choices.map((choice: string, idx: number) => {
21 |             const choiceId = `radio${id}-${idx}`;
22 |             return (
23 |               <li key={choiceId}>
24 |                 <Radio id={choiceId} name="likert" value={choice} />
25 |                 <label htmlFor={choiceId}>{choice}</label>
26 |               </li>
27 |             );
28 |           })}
29 |         </ul>
30 |       </RadioGroup>
31 |     </div>
32 |   );
33 | }
34 |

--------------------------------------------------------------------------------
/src/components/GatedButton.tsx:
--------------------------------------------------------------------------------
 1 | // Button that can only be clicked under some condition and displays a tooltip when disabled
 2 | 
 3 | import { OverlayTrigger, Tooltip, ButtonProps, Button } from "react-bootstrap";
 4 | import React from "react";
 5 | 
 6 | interface GatedButtonProps extends ButtonProps {
 7 |   disabled: boolean; // should we disable the button?
 8 |   tooltip: string; // tooltip message when disabled
 9 |   id?: string;
10 |   children: React.ReactNode;
11 |   onClick?: (e: React.MouseEvent<HTMLButtonElement, MouseEvent>) => void;
12 | }
13 | 
14 | export default function GatedButton(props: GatedButtonProps) {
15 |   if (props.disabled) {
16 |     return (
17 |       <OverlayTrigger
18 |         placement={"top"}
19 |         overlay={
20 |           <Tooltip id={`tooltip-${props?.id || ""}`}>{props.tooltip}</Tooltip>
21 |         }
22 |       >
23 |         <Button {...props}>{props.children}</Button>
24 |       </OverlayTrigger>
25 |     );
26 |   } else {
27 |     return <Button {...props}>{props.children}</Button>;
28 |   }
29 | }
30 |

--------------------------------------------------------------------------------
/src/components/TrialBlockWrapper.tsx:
--------------------------------------------------------------------------------
 1 | import { TrialBlockConfig } from "lib/types";
 2 | import TrialBlock, { TrialResult } from "./TrialBlock";
 3 | import TestTrialBlock from "./TestTrialBlock";
 4 | import { useState } from "react";
 5 | 
 6 | interface TrialBlockWrapperProps {
 7 |   config: TrialBlockConfig;
 8 |   onFail: () => void;
 9 |   onDone: (data: TrialResult) => void;
10 |   onPartialSave: (data: TrialResult) => void;
11 | }
12 | 
13 | export default function TrialBlockWrapper({
14 |   config,
15 |   onFail,
16 |   onDone,
17 |   onPartialSave,
18 | }: TrialBlockWrapperProps) {
19 |   const [showingTrial, setShowingTrial] = useState(config.testTrial.enabled);
20 |   return showingTrial ? (
21 |     <TestTrialBlock
22 |       config={config}
23 |       onFail={onFail}
24 |       onProceed={() => setShowingTrial(false)}
25 |     />
26 |   ) : (
27 |     <TrialBlock
28 |       config={config}
29 |       skipInstructions={config.testTrial.enabled}
30 |       onDone={onDone}
31 |       onPartialSave={onPartialSave}
32 |     />
33 |   );
34 | }
35 |

--------------------------------------------------------------------------------
/src/pages/api/login.ts:
--------------------------------------------------------------------------------
 1 | import { withIronSessionApiRoute } from "iron-session/next";
 2 | import bcrypt from "bcrypt";
 3 | import { NextApiResponse } from "next";
 4 | import { safe } from "../../lib/errors";
 5 | import { NextApiRequestWithSess } from "../../lib/types";
 6 | import { IRON_SESSION_CONFIG } from "../../lib/ironSession";
 7 | 
 8 | if (process.env.ADMIN_PASS_HASH === undefined) {
 9 |   console.error("ENV: ADMIN_PASS_HASH is not defined");
10 | }
11 | async function handler(req: NextApiRequestWithSess, res: NextApiResponse) {
12 |   if (req.method === "POST") {
13 |     const match = await bcrypt.compare(
14 |       req.body.password,
15 |       process.env.ADMIN_PASS_HASH!
16 |     );
17 |     if (match) {
18 |       req.session.user = {
19 |         admin: true,
20 |       };
21 |       await req.session.save();
22 |       res.status(200).send("Logged in");
23 |     } else {
24 |       res.status(401).send("");
25 |     }
26 |   } else {
27 |     res.status(404).send("");
28 |   }
29 | }
30 | 
31 | export default safe(withIronSessionApiRoute(handler, IRON_SESSION_CONFIG));
32 |

--------------------------------------------------------------------------------
/src/lib/errors.ts:
--------------------------------------------------------------------------------
 1 | import Rollbar from "rollbar";
 2 | import { NextApiRequest, NextApiResponse, NextApiHandler } from "next";
 3 | 
 4 | // Rollbar for error logging + notifications
 5 | export const rollbar = new Rollbar({
 6 |   accessToken: process.env.ROLLBAR_TOKEN,
 7 |   environment: process.env.VERCEL_ENV,
 8 |   captureUncaught: true,
 9 |   captureUnhandledRejections: true,
10 | });
11 | export function rollbarWait() {
12 |   return new Promise<void>((resolve) => {
13 |     rollbar.wait(resolve);
14 |   });
15 | }
16 | 
17 | // Make routes safe by catching and giving sane response + report to rolllbar
18 | export function safe(route: NextApiHandler): NextApiHandler {
19 |   return async (req: NextApiRequest, res: NextApiResponse) => {
20 |     try {
21 |       await route(req, res);
22 |     } catch (err: any) {
23 |       rollbar.error(err, req);
24 |       await rollbarWait();
25 |       console.error(err);
26 |       const msg = `Something broke on our end. Please reach out to us immediately.`;
27 |       res.status(500).send(msg);
28 |     }
29 |     await rollbarWait();
30 |   };
31 | }
32 |

--------------------------------------------------------------------------------
/src/pages/experiment/[exId].tsx:
--------------------------------------------------------------------------------
 1 | import React, { useState } from "react";
 2 | import Axios from "axios";
 3 | import { useAxios } from "lib/useAxios";
 4 | import { useRouter } from "next/router";
 5 | import ExperimentRunner from "components/ExperimentRunner";
 6 | import { ExperimentConfig, ExperimentDataEntry } from "lib/types";
 7 | import { GetExperimentResponse } from "pages/api/experiment/[exId]";
 8 | 
 9 | export default function ExperimentPage() {
10 |   const router = useRouter();
11 |   const experimentId = router.query.exId;
12 |   const experimentURL = `/api/experiment/${experimentId}`;
13 | 
14 |   const [config, setConfig] = useState<ExperimentConfig>();
15 | 
16 |   useAxios(experimentURL, (a: GetExperimentResponse) => setConfig(a.config), [
17 |     setConfig,
18 |   ]);
19 | 
20 |   function sendData(collected: ExperimentDataEntry) {
21 |     Axios.post(`${experimentURL}/data`, collected)
22 |       .then((response) => {
23 |         console.log(response);
24 |       })
25 |       .catch((error) => console.log(error));
26 |   }
27 | 
28 |   return (
29 |     <div className="App">
30 |       {config && <ExperimentRunner config={config} sendData={sendData} />}
31 |     </div>
32 |   );
33 | }
34 |

--------------------------------------------------------------------------------
/src/lib/config/sampleConfig.ts:
--------------------------------------------------------------------------------
 1 | import { ExperimentConfig } from "../types";
 2 | 
 3 | const sampleConfig: ExperimentConfig = {
 4 |   shuffleTrialBlocks: true,
 5 |   trialBlocks: [
 6 |     {
 7 |       videos: [{ id: "364433873/a557aecc20", timepoints: [] }],
 8 |       shuffleVideos: true,
 9 |       instructions: {
10 |         instructionScreens: ["In this task, you will be shown a few videos."],
11 |         instructionsOverlay: "",
12 |         pauseInstructions: "Pause the video at emotional events",
13 |       },
14 |       paradigm: "self",
15 |       questions: [
16 |         {
17 |           type: "scale",
18 |           label: "Label the emotion",
19 |           choices: ["Valence", "Arousal", "dominance"],
20 |         },
21 |       ],
22 |       shuffleQuestions: true,
23 |       testTrial: {
24 |         enabled: true,
25 |         video: { id: "318377318/cbb45794ea", timepoints: [] },
26 |         maxTries: 2,
27 |         minSegments: 2,
28 |         successMessage: "passed the test trial",
29 |         tryAgainMessage: "please try again",
30 |         failMessage:
31 |           "You did not segment the video enough and are not eligible to continue",
32 |       },
33 |     },
34 |   ],
35 | };
36 | 
37 | export default sampleConfig;
38 |

--------------------------------------------------------------------------------
/src/components/questions/Grid1D.tsx:
--------------------------------------------------------------------------------
 1 | import { GridAxisLabel } from "lib/types";
 2 | import { Line, Stage, Layer, Text } from "react-konva";
 3 | 
 4 | const WIDTH = 400;
 5 | 
 6 | export default function Grid1D({
 7 |   x,
 8 |   label,
 9 |   axis,
10 | }: {
11 |   x: number;
12 |   label: string;
13 |   axis: GridAxisLabel;
14 | }) {
15 |   return (
16 |     <div>
17 |       <div className="questionTitle">{label}</div>
18 |       <Stage style={{ background: "white" }} width={WIDTH} height={80}>
19 |         <Layer>
20 |           <Line stroke="black" points={[0, 40, WIDTH, 40]} strokeWidth={1} />
21 |           <Text text={axis.low} x={0} y={20} align="center" />
22 |           <Text
23 |             text={axis.high}
24 |             x={WIDTH - 60}
25 |             y={20}
26 |             align="right"
27 |             width={60}
28 |           />
29 |           <Text
30 |             text="neutral"
31 |             x={WIDTH / 2 - 30}
32 |             y={20}
33 |             align="center"
34 |             width={60}
35 |           />
36 |           <Line
37 |             stroke="black"
38 |             points={[x * WIDTH, 35, x * WIDTH, 45]}
39 |             strokeWidth={2}
40 |           />
41 |         </Layer>
42 |       </Stage>
43 |     </div>
44 |   );
45 | }
46 |

--------------------------------------------------------------------------------
/src/pages/api/experiment/index.ts:
--------------------------------------------------------------------------------
 1 | import { withIronSessionApiRoute } from "iron-session/next";
 2 | import { NextApiResponse } from "next";
 3 | import { safe } from "lib/errors";
 4 | import { NextApiRequestWithSess } from "lib/types";
 5 | import { IRON_SESSION_CONFIG } from "lib/ironSession";
 6 | import { getExperiments, createExperiment } from "lib/db";
 7 | 
 8 | // Create a new template experiment with placeholder name and config
 9 | // Send back the id
10 | async function post(req: NextApiRequestWithSess, res: NextApiResponse) {
11 |   const id = await createExperiment();
12 |   res.status(201).send(id);
13 | }
14 | 
15 | // get all the experiments' metadata
16 | async function get(req: NextApiRequestWithSess, res: NextApiResponse) {
17 |   const experiments = await getExperiments();
18 |   res.status(200).send(experiments);
19 | }
20 | 
21 | async function handler(req: NextApiRequestWithSess, res: NextApiResponse) {
22 |   const user = req.session.user;
23 |   if (user && user.admin) {
24 |     if (req.method === "POST") {
25 |       await post(req, res);
26 |     } else if (req.method === "GET") {
27 |       await get(req, res);
28 |     }
29 |   } else {
30 |     res.status(401).send("unauthorized");
31 |   }
32 | }
33 | 
34 | export default safe(withIronSessionApiRoute(handler, IRON_SESSION_CONFIG));
35 |

--------------------------------------------------------------------------------
/src/pages/api/migrate.ts:
--------------------------------------------------------------------------------
 1 | import { getByKey, getExperiments, putDataEntry } from "lib/db";
 2 | import { safe } from "lib/errors";
 3 | import { IRON_SESSION_CONFIG } from "lib/ironSession";
 4 | import { ExperimentData, NextApiRequestWithSess } from "lib/types";
 5 | import { NextApiResponse } from "next";
 6 | import { withIronSessionApiRoute } from "iron-session/next";
 7 | 
 8 | type OldDBData = {
 9 |   id: string;
10 |   subjectData: ExperimentData;
11 | };
12 | 
13 | async function convertExperimentData(id: string) {
14 |   console.log(`converting ${id}`);
15 |   const data = await getByKey<OldDBData>(`DATA-${id}`);
16 |   if (data) {
17 |     await Promise.all(
18 |       data.subjectData.map(async (d) => await putDataEntry(id, d))
19 |     );
20 |   }
21 | }
22 | 
23 | async function handler(req: NextApiRequestWithSess, res: NextApiResponse) {
24 |   if (req.method === "GET") {
25 |     const user = req.session.user;
26 |     if (user && user.admin) {
27 |       const experiments = await getExperiments();
28 |       for (const experiment of experiments) {
29 |         await convertExperimentData(experiment.id);
30 |       }
31 |       res.status(200).end();
32 |     } else {
33 |       res.status(401).send("unauthorized");
34 |     }
35 |   }
36 | }
37 | 
38 | export default safe(withIronSessionApiRoute(handler, IRON_SESSION_CONFIG));
39 |

--------------------------------------------------------------------------------
/src/pages/login.tsx:
--------------------------------------------------------------------------------
 1 | import { useRef, useState } from "react";
 2 | import Router from "next/router";
 3 | 
 4 | export default function Login() {
 5 |   const passRef = useRef<HTMLInputElement>(null);
 6 |   const [invalid, setInvalid] = useState(false);
 7 |   return (
 8 |     <div className="container">
 9 |       <form
10 |         onSubmit={(e) => {
11 |           e.preventDefault();
12 |           const password = passRef.current?.value;
13 |           fetch("/api/login", {
14 |             method: "post",
15 |             headers: {
16 |               "Content-Type": "application/json",
17 |             },
18 |             body: JSON.stringify({ password }),
19 |           }).then((response) => {
20 |             if (response.ok) {
21 |               Router.push("/admin");
22 |             } else {
23 |               setInvalid(true);
24 |             }
25 |           });
26 |           return false;
27 |         }}
28 |       >
29 |         <div className="form-group">
30 |           <label htmlFor="password">
31 |             <b>Password</b>
32 |           </label>
33 |           <input
34 |             type="password"
35 |             placeholder="Enter Password"
36 |             className="form-control"
37 |             name="password"
38 |             required
39 |             ref={passRef}
40 |           />
41 |         </div>
42 | 
43 |         <button type="submit" className="btn btn-primary">
44 |           Login
45 |         </button>
46 |         <div>{invalid && "Invalid Password!"}</div>
47 |       </form>
48 |     </div>
49 |   );
50 | }
51 |

--------------------------------------------------------------------------------
/src/components/videoTask/ContinuousVideoTask.tsx:
--------------------------------------------------------------------------------
 1 | import { GridAnswer, TrialInstructions, ContinuousGridConfig } from "lib/types";
 2 | import ContinuousGrid from "../questions/ContinuousGridQuestions";
 3 | import VideoTaskView from "./VideoTaskView";
 4 | import { useState } from "react";
 5 | import { OnDone, SavePartialData } from "./taskTypes";
 6 | 
 7 | interface ContinuousVideoTaskProps {
 8 |   videoId: string;
 9 |   grid: ContinuousGridConfig;
10 |   instructions: TrialInstructions;
11 |   onDone: OnDone;
12 |   savePartialData: SavePartialData;
13 | }
14 | export default function ContinuousVideoTask({
15 |   videoId,
16 |   grid,
17 |   instructions,
18 |   onDone,
19 |   savePartialData,
20 | }: ContinuousVideoTaskProps) {
21 |   const [playing, setPlaying] = useState(false);
22 |   return (
23 |     <VideoTaskView
24 |       videoId={videoId}
25 |       instructionsOverlay={instructions.instructionsOverlay}
26 |       onDone={onDone}
27 |       savePartialData={savePartialData}
28 |       setPlaying={setPlaying}
29 |       playing={playing}
30 |       renderQuestions={(onSubmit) => (
31 |         <div>
32 |           <ContinuousGrid
33 |             config={grid}
34 |             onValue={(value: GridAnswer) => {
35 |               onSubmit([value]);
36 |             }}
37 |             onGridExit={() => {
38 |               setPlaying(false);
39 |             }}
40 |             paused={!playing}
41 |             onPlay={() => {
42 |               setPlaying(true);
43 |             }}
44 |           />
45 |         </div>
46 |       )}
47 |     ></VideoTaskView>
48 |   );
49 | }
50 |

--------------------------------------------------------------------------------
/src/pages/api/experiment/[exId]/data.ts:
--------------------------------------------------------------------------------
 1 | import { withIronSessionApiRoute } from "iron-session/next";
 2 | import { NextApiResponse } from "next";
 3 | import { rollbar, safe } from "lib/errors";
 4 | import {
 5 |   NextApiRequestWithSess,
 6 |   ExperimentDataEntry,
 7 |   ExperimentData,
 8 | } from "lib/types";
 9 | import { IRON_SESSION_CONFIG } from "lib/ironSession";
10 | import { putDataEntry, getAllData } from "lib/db";
11 | 
12 | // Submit a new data entry for a participant
13 | async function post(req: NextApiRequestWithSess, res: NextApiResponse) {
14 |   const newConfig = req.body as ExperimentDataEntry;
15 |   const exId = req.query.exId as string;
16 |   rollbar.log("data posted", { exId, data: JSON.stringify(newConfig) });
17 |   await putDataEntry(exId, newConfig);
18 |   res.status(201).end();
19 | }
20 | 
21 | // Get all the data from an experiment
22 | async function get(
23 |   req: NextApiRequestWithSess,
24 |   res: NextApiResponse<ExperimentData>
25 | ) {
26 |   const exId = req.query.exId as string;
27 |   const config = await getAllData(exId);
28 |   if (config !== undefined) {
29 |     res.status(200).json(config);
30 |   } else {
31 |     res.status(200).json([]);
32 |   }
33 | }
34 | 
35 | async function handler(req: NextApiRequestWithSess, res: NextApiResponse) {
36 |   if (req.method === "POST") {
37 |     await post(req, res);
38 |   } else if (req.method === "GET") {
39 |     const user = req.session.user;
40 |     if (user && user.admin) {
41 |       await get(req, res);
42 |     } else {
43 |       res.status(401).send("unauthorized");
44 |     }
45 |   }
46 | }
47 | 
48 | export default safe(withIronSessionApiRoute(handler, IRON_SESSION_CONFIG));
49 |

--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
 1 | This is a project built in conjunction with emotion researcher Maria Gendron to measure how accurately people can infer other people's emotions. Maria is a Yale professor and Northeastern alumna who has been featured in TIME, NPR, and BBC. The Sandbox team at Northeastern University built an online experiment that simultaneously plays videos and collects data from participants.
 2 | 
 3 | # Running in Development
 4 | 
 5 | In development, there are two servers running: one for the React frontend and one for the Node/Express backend. By default, React will send AJAX requests to the server it's hosted at (the React development server), not the Node server. We use the `proxy` field inside the frontend's package.json to tell React to send the requests to Node at port 3001 instead.
 6 | 
 7 | `npm run dev` at the root folder will run the nodejs backend and reactjs frontend in development mode. Both will automatically reload when files are edited. Within the backend or frontend folders, `npm run dev` will start up the development server for just the backend or frontend.
 8 | 
 9 | # Testing
10 | 
11 | `npm test` at the root folder should test both, but we still need to set up testing... **TODO**
12 | 
13 | # Deployment
14 | 
15 | Pushing to GitHub deploys the app to [Zeit Now](https://zeit.co/now). The master branch is production. Zeit builds the app with now.json, which uses the `now-build` script inside package.json to build the React app for production. Zeit handles routing by hosting static files at `/static/` and then routes every other url to React's compiled index.html.
16 | 
17 | # Code notes
18 | 
19 | - Experiment 
20 |   - TrialBlock
21 |     - Video Task
22 | 
23 | Empathic Accuracy is a [Sandbox](https://sandboxneu.com) project.
24 |

--------------------------------------------------------------------------------
/src/pages/api/experiment/[exId]/index.ts:
--------------------------------------------------------------------------------
 1 | import { withIronSessionApiRoute } from "iron-session/next";
 2 | import { NextApiResponse } from "next";
 3 | import { safe } from "lib/errors";
 4 | import { NextApiRequestWithSess, ExperimentConfig } from "lib/types";
 5 | import { IRON_SESSION_CONFIG } from "lib/ironSession";
 6 | import { getExperiment, setExperiment } from "lib/db";
 7 | 
 8 | export interface SetExperimentParams {
 9 |   nickname: string;
10 |   config: ExperimentConfig;
11 | }
12 | // Overwrite the config for an experiment
13 | async function set(req: NextApiRequestWithSess, res: NextApiResponse) {
14 |   const newExp = req.body as SetExperimentParams;
15 |   const exId = req.query.exId as string;
16 |   await setExperiment(exId, newExp.nickname, newExp.config);
17 |   res.status(201).end();
18 | }
19 | 
20 | export interface GetExperimentResponse {
21 |   id: string;
22 |   nickname: string;
23 |   config: ExperimentConfig;
24 | }
25 | // Get the config for an experiment
26 | async function get(req: NextApiRequestWithSess, res: NextApiResponse) {
27 |   const exId = req.query.exId as string;
28 |   const config: GetExperimentResponse | undefined = await getExperiment(exId);
29 |   if (config !== undefined) {
30 |     res.status(200).send(config);
31 |   } else {
32 |     res.status(404).end();
33 |   }
34 | }
35 | 
36 | async function handler(req: NextApiRequestWithSess, res: NextApiResponse) {
37 |   if (req.method === "POST") {
38 |     const user = req.session.user;
39 |     if (user && user.admin) {
40 |       await set(req, res);
41 |     } else {
42 |       res.status(401).send("unauthorized");
43 |     }
44 |   } else if (req.method === "GET") {
45 |     await get(req, res);
46 |   }
47 | }
48 | 
49 | export default safe(withIronSessionApiRoute(handler, IRON_SESSION_CONFIG));
50 |

--------------------------------------------------------------------------------
/src/components/videoTask/TimestampVideoTask.tsx:
--------------------------------------------------------------------------------
 1 | import VideoTaskView from "./VideoTaskView";
 2 | import { TimestampPrompt, TrialInstructions } from "lib/types";
 3 | import ReactMarkdown from "react-markdown";
 4 | import { OnDone, SavePartialData } from "./taskTypes";
 5 | import { useState } from "react";
 6 | 
 7 | type TimestampVideoTaskProps ={
 8 |   videoId: string;
 9 |   instructions: TrialInstructions;
10 |   timestampPrompt: TimestampPrompt;
11 |   onDone: OnDone;
12 |   savePartialData: SavePartialData;
13 | };
14 | export default function TimestampVideoTask({
15 |   videoId,
16 |   instructions,
17 |   timestampPrompt,
18 |   onDone,
19 |   savePartialData,
20 | }: TimestampVideoTaskProps) {
21 |   const [disabled, setDisabled] = useState(false);
22 |   return (
23 |     <VideoTaskView
24 |       videoId={videoId}
25 |       instructionsOverlay={instructions.instructionsOverlay}
26 |       onDone={onDone}
27 |       savePartialData={savePartialData}
28 |       setPlaying={()=>{}}
29 |       playing={true}
30 |       renderQuestions={(onSubmit) =>
31 |         (
32 |           <div className="questionPlaceholder">
33 |             <ReactMarkdown children={timestampPrompt.buttonInstructions || ""} />
34 |             <button
35 |               className="btn btn-primary"
36 |               id="pauseButton"
37 |               disabled={disabled}
38 |               onClick={() => {
39 |                 console.log('clicked')
40 |                 setDisabled(true);
41 |                 onSubmit({});
42 |                 setTimeout(()=>setDisabled(false), 500);
43 |               }}
44 |               type="button"
45 |             >
46 |             {timestampPrompt.buttonText}
47 |             </button>
48 |           </div>
49 |         ) 
50 |       }
51 |     ></VideoTaskView>
52 |   );
53 | }
54 |

--------------------------------------------------------------------------------
/src/components/Instructions.js:
--------------------------------------------------------------------------------
 1 | import React from "react";
 2 | import PropTypes from "prop-types";
 3 | import ReactMarkdown from "react-markdown";
 4 | 
 5 | // Show a series of instructions in page/slideshow format.
 6 | class Instructions extends React.Component {
 7 |   constructor(props) {
 8 |     super(props);
 9 |     this.state = {
10 |       section: 0,
11 |     };
12 |   }
13 | 
14 |   navigateForward() {
15 |     const { section } = this.state;
16 |     const { instructionScreens, onFinish } = this.props;
17 |     if (section === instructionScreens.length - 1) {
18 |       onFinish();
19 |     } else {
20 |       this.setState({ section: section + 1 });
21 |     }
22 |   }
23 | 
24 |   navigateBackward() {
25 |     const { section } = this.state;
26 |     this.setState({ section: section - 1 });
27 |   }
28 | 
29 |   render() {
30 |     const { section } = this.state;
31 |     const { instructionScreens } = this.props;
32 |     const instructionText = instructionScreens[section];
33 | 
34 |     return (
35 |       <div className="instructionsContainer">
36 |         <div className="instructionsText">
37 |           <ReactMarkdown children={instructionText} />
38 |         </div>
39 |         <div className="buttonContainer">
40 |           {section === 0 ? (
41 |             <div />
42 |           ) : (
43 |             <button
44 |               className="btn btn-primary"
45 |               type="button"
46 |               onClick={() => this.navigateBackward()}
47 |             >
48 |               ‹ Previous{" "}
49 |             </button>
50 |           )}
51 |           <button
52 |             className="btn btn-primary"
53 |             type="button"
54 |             onClick={() => this.navigateForward()}
55 |           >
56 |             {" "}
57 |             Next ›
58 |           </button>
59 |         </div>
60 |       </div>
61 |     );
62 |   }
63 | }
64 | 
65 | Instructions.propTypes = {
66 |   onFinish: PropTypes.func.isRequired,
67 |   instructionScreens: PropTypes.arrayOf(PropTypes.string).isRequired,
68 | };
69 | 
70 | export default Instructions;
71 |

--------------------------------------------------------------------------------
/src/components/videoTask/SelfVideoTask.tsx:
--------------------------------------------------------------------------------
 1 | import VideoTaskView from "./VideoTaskView";
 2 | import VideoQuestions from "components/questions/VideoQuestions";
 3 | import { Question, TrialInstructions } from "lib/types";
 4 | import { useState } from "react";
 5 | import ReactMarkdown from "react-markdown";
 6 | import { OnDone, SavePartialData } from "./taskTypes";
 7 | 
 8 | interface SelfVideoTaskProps {
 9 |   videoId: string;
10 |   questions: Question[];
11 |   instructions: TrialInstructions;
12 |   onDone: OnDone;
13 |   savePartialData: SavePartialData;
14 | }
15 | export default function SelfVideoTask({
16 |   videoId,
17 |   questions,
18 |   instructions,
19 |   onDone,
20 |   savePartialData,
21 | }: SelfVideoTaskProps) {
22 |   const [playing, setPlaying] = useState(true);
23 |   const [showQuestionTime, setShowQuestionTime] = useState(Date.now());
24 | 
25 |   function showQuestions() {
26 |     setPlaying(false);
27 |     setShowQuestionTime(Date.now());
28 |   }
29 |   return (
30 |     <VideoTaskView
31 |       videoId={videoId}
32 |       instructionsOverlay={instructions.instructionsOverlay}
33 |       onDone={onDone}
34 |       savePartialData={savePartialData}
35 |       setPlaying={setPlaying}
36 |       playing={playing}
37 |       renderQuestions={(onSubmit) =>
38 |         playing ? (
39 |           <div className="questionPlaceholder">
40 |             <ReactMarkdown children={instructions.pauseInstructions || ""} />
41 |             <button
42 |               className="btn btn-primary"
43 |               id="pauseButton"
44 |               onClick={() => showQuestions()}
45 |               type="button"
46 |             >
47 |               Pause
48 |             </button>
49 |           </div>
50 |         ) : (
51 |           <VideoQuestions
52 |             onSubmit={(n) =>
53 |               onSubmit({
54 |                 ...n,
55 |                 questionTime: (Date.now() - showQuestionTime) / 1000,
56 |               })
57 |             }
58 |             questions={questions}
59 |           />
60 |         )
61 |       }
62 |     ></VideoTaskView>
63 |   );
64 | }
65 |

--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "empathic-accuracy",
 3 |   "version": "0.1.0",
 4 |   "private": true,
 5 |   "scripts": {
 6 |     "dev": "next dev",
 7 |     "build": "next build",
 8 |     "start": "next start",
 9 |     "dev:db:up": "docker run -p 8000:8000 --name ea-db -d amazon/dynamodb-local && yarn dev:db:seed",
10 |     "dev:db:seed": "dotenv -e .env.development -- ts-node -P tsconfig.standalone.json src/lib/setupdb-cli.ts",
11 |     "dev:db:down": "docker rm --force ea-db"
12 |   },
13 |   "dependencies": {
14 |     "aws-sdk": "^2.682.0",
15 |     "axios": "^0.18.1",
16 |     "bcrypt": "^4.0.1",
17 |     "bootstrap": "^4.5.0",
18 |     "informed": "^3.8.1",
19 |     "iron-session": "^6.3.1",
20 |     "js-file-download": "^0.4.4",
21 |     "konva": "^6.0.0",
22 |     "lodash": "^4.17.15",
23 |     "next": "^12.0.0",
24 |     "prop-types": "^15.7.2",
25 |     "react": "18",
26 |     "react-beforeunload": "^2.5.3",
27 |     "react-bootstrap": "^2.7.4",
28 |     "react-dom": "18",
29 |     "react-fetch-component": "^7.0.1",
30 |     "react-interval-timer": "^1.0.5",
31 |     "react-jsonschema-form-bs4": "^1.0.6",
32 |     "react-konva": "^18.2.9",
33 |     "react-markdown": "^8.0.7",
34 |     "react-player": "^2.1.0",
35 |     "reactjs-localstorage": "0.0.7",
36 |     "rollbar": "^2.16.2",
37 |     "uuid": "^8.1.0",
38 |     "whatwg-fetch": "^3.0.0"
39 |   },
40 |   "devDependencies": {
41 |     "@types/bcrypt": "^3.0.0",
42 |     "@types/dotenv": "^8.2.0",
43 |     "@types/json-schema": "^7.0.4",
44 |     "@types/lodash": "^4.14.152",
45 |     "@types/node": "^14.0.1",
46 |     "@types/react": "^16.9.35",
47 |     "@types/react-beforeunload": "^2.1.0",
48 |     "@types/react-bootstrap": "^1.0.1",
49 |     "@types/uuid": "^8.0.0",
50 |     "dotenv-cli": "^3.1.0",
51 |     "husky": "^4.2.5",
52 |     "lint-staged": "^10.2.4",
53 |     "prettier": "^2.0.5",
54 |     "ts-node": "^8.10.2",
55 |     "typescript": "^5.1.3"
56 |   },
57 |   "husky": {
58 |     "hooks": {
59 |       "pre-commit": "lint-staged"
60 |     }
61 |   },
62 |   "lint-staged": {
63 |     "*.js?(x),*.ts?(x)": [
64 |       "prettier --write"
65 |     ]
66 |   }
67 | }
68 |

--------------------------------------------------------------------------------
/src/components/videoTask/ConsensusVideoTask.tsx:
--------------------------------------------------------------------------------
 1 | import { useState } from "react";
 2 | import VideoTaskView from "./VideoTaskView";
 3 | import VideoQuestions from "components/questions/VideoQuestions";
 4 | import { Question, TrialInstructions } from "lib/types";
 5 | import ReactMarkdown from "react-markdown";
 6 | import { OnDone, SavePartialData } from "./taskTypes";
 7 | 
 8 | interface ConsensusVideoTaskProps {
 9 |   videoId: string;
10 |   timepoints: number[];
11 |   questions: Question[];
12 |   instructions: TrialInstructions;
13 |   onDone: OnDone;
14 |   savePartialData: SavePartialData;
15 | }
16 | export default function ConsensusVideoTask({
17 |   videoId,
18 |   timepoints,
19 |   questions,
20 |   instructions,
21 |   onDone,
22 |   savePartialData,
23 | }: ConsensusVideoTaskProps) {
24 |   const [playing, setPlaying] = useState(true);
25 |   const [showQuestionTime, setShowQuestionTime] = useState(Date.now());
26 |   const [nextTimepointIndex, setNextTimepointIndex] = useState(0);
27 | 
28 |   function onProgress(playedSeconds: number) {
29 |     if (playedSeconds > timepoints[nextTimepointIndex]) {
30 |       setPlaying(false);
31 |       setShowQuestionTime(Date.now());
32 |       setNextTimepointIndex(nextTimepointIndex + 1);
33 |     }
34 |   }
35 |   return (
36 |     <VideoTaskView
37 |       videoId={videoId}
38 |       instructionsOverlay={instructions.instructionsOverlay}
39 |       onDone={onDone}
40 |       savePartialData={savePartialData}
41 |       onProgress={onProgress}
42 |       setPlaying={setPlaying}
43 |       playing={playing}
44 |       renderQuestions={(onSubmit) =>
45 |         playing ? (
46 |           <div className="questionPlaceholder">
47 |             <ReactMarkdown children={instructions.pauseInstructions || ""} />
48 |           </div>
49 |         ) : (
50 |           <VideoQuestions
51 |             onSubmit={(n) =>
52 |               onSubmit({
53 |                 ...n,
54 |                 questionTime: (Date.now() - showQuestionTime) / 1000,
55 |               })
56 |             }
57 |             questions={questions}
58 |           />
59 |         )
60 |       }
61 |     ></VideoTaskView>
62 |   );
63 | }
64 |

--------------------------------------------------------------------------------
/src/components/TestTrialBlock.tsx:
--------------------------------------------------------------------------------
 1 | import { TrialBlockConfig } from "lib/types";
 2 | import TrialBlock from "./TrialBlock";
 3 | import { useState } from "react";
 4 | import { sumBy, range } from "lodash";
 5 | import Instructions from "./Instructions";
 6 | 
 7 | interface TestTrialBlockProps {
 8 |   config: TrialBlockConfig;
 9 |   onProceed: () => void;
10 |   onFail: () => void;
11 | }
12 | enum StageEnum {
13 |   test,
14 |   tryagainmessage,
15 |   succeedmessage,
16 | }
17 | 
18 | export default function TestTrialBlock({
19 |   config,
20 |   onProceed,
21 |   onFail,
22 | }: TestTrialBlockProps) {
23 |   const [tryCount, setTryCount] = useState(0);
24 |   const [stage, setStage] = useState(StageEnum.test);
25 | 
26 |   if (config.testTrial.enabled) {
27 |     if (stage === StageEnum.test) {
28 |       return (
29 |         <TrialBlock
30 |           key={tryCount}
31 |           onPartialSave={() => { }}
32 |           onDone={(d) => {
33 |             if (config.testTrial.enabled) {
34 |               let proceed = true;
35 |               if (config.paradigm === "consensus") {
36 |                 setStage(StageEnum.succeedmessage);
37 |                 return;
38 |               }
39 |               if (config.paradigm === "self" || config.paradigm === "timestamp") {
40 |                 proceed =
41 |                   config.testTrial.minSegments <=
42 |                   sumBy(Object.values(d.answers), (e) => e.length);
43 |               }
44 |               if (config.paradigm === "continuous") {
45 |                 const { maxSeconds } = config.testTrial;
46 |                 proceed = Object.values(d.answers).every((values) =>
47 |                   range(0, values.length - 1).every(
48 |                     (i) =>
49 |                       values[i + 1].timestamp - values[i].timestamp < maxSeconds
50 |                   )
51 |                 );
52 |               }
53 |               if (proceed) {
54 |                 setStage(StageEnum.succeedmessage);
55 |               } else if (tryCount + 1 < config.testTrial.maxTries) {
56 |                 setStage(StageEnum.tryagainmessage);
57 |                 setTryCount(tryCount + 1);
58 |               } else {
59 |                 onFail();
60 |               }
61 |             }
62 |           }}
63 |           config={{ ...config, videos: [config.testTrial.video] }}
64 |         />
65 |       );
66 |     } else if (stage === StageEnum.succeedmessage) {
67 |       return (
68 |         <Instructions
69 |           instructionScreens={[config.testTrial.successMessage]}
70 |           onFinish={() => onProceed()}
71 |         />
72 |       );
73 |     } else {
74 |       return (
75 |         <Instructions
76 |           instructionScreens={[config.testTrial.tryAgainMessage]}
77 |           onFinish={() => setStage(StageEnum.test)}
78 |         />
79 |       );
80 |     }
81 |   } else {
82 |     return <div>error state</div>;
83 |   }
84 | }
85 |

--------------------------------------------------------------------------------
/src/pages/admin/index.tsx:
--------------------------------------------------------------------------------
 1 | import { withIronSessionSsr } from "iron-session/next";
 2 | import Link from "next/link";
 3 | import { IRON_SESSION_CONFIG } from "lib/ironSession";
 4 | import { Container, Button, Table } from "react-bootstrap";
 5 | import { useState } from "react";
 6 | import { ExperimentMetadata } from "lib/types";
 7 | import { useAxios } from "lib/useAxios";
 8 | import { downloadExperimentData } from "lib/downloadData";
 9 | import Axios from "axios";
10 | import { useRouter } from "next/router";
11 | 
12 | export default function Admin() {
13 |   const [experiments, setExperiments] = useState<ExperimentMetadata[]>([]);
14 | 
15 |   useAxios("/api/experiment", setExperiments, [setExperiments]);
16 |   const router = useRouter();
17 | 
18 |   return (
19 |     <>
20 |       <Container className="mt-3">
21 |         <Button
22 |           className="mb-3"
23 |           variant="success"
24 |           onClick={async () => {
25 |             const res = await Axios.post("/api/experiment");
26 |             const id = res.data;
27 |             router.push("/admin/experiment/[exId]", `/admin/experiment/${id}`);
28 |           }}
29 |         >
30 |           <i className="fas fa-plus mr-2" />
31 |           New Experiment
32 |         </Button>
33 |         <Table striped bordered hover>
34 |           <thead>
35 |             <tr>
36 |               <th>Nickname</th>
37 |               <th>Participant Link</th>
38 |               <th>Edit</th>
39 |               <th>Download Data</th>
40 |             </tr>
41 |           </thead>
42 |           <tbody>
43 |             {experiments.map((e) => (
44 |               <tr key={e.id}>
45 |                 <td>{e.nickname}</td>
46 |                 <td>
47 |                   <Link href="/experiment/[exId]" as={`/experiment/${e.id}`}>
48 |                     <a>Link to experiment</a>
49 |                   </Link>
50 |                 </td>
51 |                 <td>
52 |                   <Link
53 |                     href="/admin/experiment/[exId]"
54 |                     as={`/admin/experiment/${e.id}`}
55 |                   >
56 |                     <Button variant="primary">
57 |                       <i className="fas fa-edit" />
58 |                     </Button>
59 |                   </Link>
60 |                 </td>
61 |                 <td>
62 |                   <Button
63 |                     variant="secondary"
64 |                     onClick={() => downloadExperimentData(e.id)}
65 |                   >
66 |                     <i className="fas fa-download" />
67 |                   </Button>
68 |                 </td>
69 |               </tr>
70 |             ))}
71 |           </tbody>
72 |         </Table>
73 |       </Container>
74 |       
75 |     </>
76 |   );
77 | }
78 | 
79 | export const getServerSideProps = withIronSessionSsr(async function ({
80 |   req,
81 |   res,
82 | }) {
83 |   const user = req.session.user;
84 |   if (user && user.admin) {
85 |     return { props: {} };
86 |   } else {
87 |     res.setHeader("location", "/login");
88 |     res.statusCode = 302;
89 |     res.end();
90 |     return { props: {} };
91 |   }
92 | },
93 | IRON_SESSION_CONFIG);
94 |

--------------------------------------------------------------------------------
/src/components/questions/ContinuousGridQuestions.tsx:
--------------------------------------------------------------------------------
  1 | /* eslint-disable @typescript-eslint/no-non-null-assertion */
  2 | import React, { useState, useRef, useEffect } from "react";
  3 | import { GridAnswer, GridAxisLabel, ContinuousGridConfig } from "lib/types";
  4 | import Grid from "./Grid";
  5 | import { clamp } from "lodash";
  6 | import Grid1D from "./Grid1D";
  7 | 
  8 | function getRelativeClick(e: React.MouseEvent) {
  9 |   // e = Mouse click event.
 10 |   const rect = e.currentTarget.getBoundingClientRect();
 11 |   const x = e.clientX - rect.left; // x position within the element.
 12 |   const y = e.clientY - rect.top; // y position within the element.
 13 |   return { x, y };
 14 | }
 15 | 
 16 | /*
 17 | function renderTrail(value) {
 18 |   const trail = [];
 19 | 
 20 |   for (let i = 3; i < 10; i += 2) {
 21 |     if (value.length > i) {
 22 |       trail.push(
 23 |         <div
 24 |           className="circle"
 25 |           style={{
 26 |             top: value[value.length - i].pos.y,
 27 |             left: value[value.length - i].pos.x,
 28 |             background: `#${i}${i}${i}`,
 29 |           }}
 30 |         />,
 31 |       );
 32 |     }
 33 |   }
 34 |   return trail;
 35 | }
 36 | */
 37 | export interface ContinuousGridProps {
 38 |   config: ContinuousGridConfig;
 39 |   onValue: (a: GridAnswer) => void;
 40 |   onGridExit: () => void;
 41 |   onPlay: () => void;
 42 |   paused: boolean;
 43 | }
 44 | 
 45 | const ContinuousGrid = ({
 46 |   config,
 47 |   onValue,
 48 |   onGridExit,
 49 |   onPlay,
 50 |   paused,
 51 | }: ContinuousGridProps) => {
 52 |   const is2D = config.dimensions === 2;
 53 |   const [lastPos, setLastPos] = useState<GridAnswer>({
 54 |     x: 0.5,
 55 |     y: is2D ? 0.5 : undefined,
 56 |   });
 57 |   const gridRef = useRef<HTMLDivElement>(null);
 58 | 
 59 |   useEffect(() => {
 60 |     document.addEventListener(
 61 |       "pointerlockchange",
 62 |       () => {
 63 |         if (
 64 |           document.pointerLockElement === gridRef.current // ||
 65 |           // document.mozPointerLockElement === gridRef.current
 66 |         ) {
 67 |           onPlay();
 68 |         } else {
 69 |           onGridExit();
 70 |         }
 71 |       },
 72 |       false
 73 |     );
 74 |   }, [onPlay, onGridExit]);
 75 |   return (
 76 |     <div
 77 |       ref={gridRef}
 78 |       onClick={() => {
 79 |         gridRef.current?.requestPointerLock();
 80 |       }}
 81 |       onMouseMove={(e) => {
 82 |         if (!paused) {
 83 |           const pos = {
 84 |             x: clamp(e.movementX / 250 + lastPos.x, 0, 1),
 85 |             y: is2D ? clamp(-e.movementY / 250 + lastPos.y!, 0, 1) : undefined,
 86 |           };
 87 |           setLastPos(pos);
 88 |           onValue(pos);
 89 |         }
 90 |       }}
 91 |     >
 92 |       {config.dimensions === 2 ? (
 93 |         <Grid
 94 |           x={lastPos.x}
 95 |           y={lastPos.y!}
 96 |           label={config.label}
 97 |           xLabel={config.xAxis}
 98 |           yLabel={config.yAxis}
 99 |         />
100 |       ) : (
101 |         <Grid1D x={lastPos.x} label={config.label} axis={config.axis} />
102 |       )}
103 |     </div>
104 |   );
105 | };
106 | 
107 | export default ContinuousGrid;
108 |

--------------------------------------------------------------------------------
/src/components/questions/VideoQuestions.tsx:
--------------------------------------------------------------------------------
 1 | import { Form } from "informed";
 2 | import React from "react";
 3 | import MultipleChoiceQuestion from "./MultipleChoiceQuestion";
 4 | import OpenQuestion from "./OpenQuestion";
 5 | import GridQuestion from "./GridQuestion";
 6 | import ScaleQuestion from "./ScaleQuestion";
 7 | import { Question, AnswerSet } from "lib/types";
 8 | import GatedButton from "../GatedButton";
 9 | 
10 | interface VideoQuestionsProps {
11 |   onSubmit: (a: AnswerSet) => void;
12 |   questions: Question[];
13 | }
14 | export default class VideoQuestions extends React.Component<
15 |   VideoQuestionsProps,
16 |   { activeQIndex: number }
17 | > {
18 |   constructor(props: VideoQuestionsProps) {
19 |     super(props);
20 |     this.state = { activeQIndex: 0 };
21 |   }
22 | 
23 |   // Get the Informed form api to extract form values
24 |   // Pass the form values up
25 |   handleSubmit(answers: AnswerSet) {
26 |     const { onSubmit } = this.props;
27 |     onSubmit(answers);
28 |   }
29 | 
30 |   // Render a list of questions
31 |   renderQuestions() {
32 |     const { activeQIndex } = this.state;
33 |     const { questions } = this.props;
34 |     const formQuestions = questions.map((question, idx) => {
35 |       const id = idx.toString();
36 |       const isActive = activeQIndex === idx;
37 |       return (
38 |         <div key={id} className={isActive ? "activeQuestion" : ""}>
39 |           {(() => {
40 |             switch (question.type) {
41 |               case "mc":
42 |                 return <MultipleChoiceQuestion id={id} {...question} />;
43 |               case "scale":
44 |                 return <ScaleQuestion id={id} {...question} />;
45 |               case "open":
46 |                 return <OpenQuestion id={id} {...question} />;
47 |               case "grid":
48 |                 return <GridQuestion id={id} field={id} {...question} />;
49 |               default:
50 |                 return null;
51 |             }
52 |           })()}
53 |         </div>
54 |       );
55 |     });
56 |     return formQuestions;
57 |   }
58 | 
59 |   render() {
60 |     const { activeQIndex } = this.state;
61 |     const { questions } = this.props;
62 |     const isLast = activeQIndex === questions.length - 1;
63 |     return (
64 |       <Form<AnswerSet>>
65 |         {({ formState }) => {
66 |           const isAnswerPresent = formState.values[activeQIndex];
67 |           return (
68 |             <>
69 |               {this.renderQuestions()}
70 |               {isLast ? (
71 |                 <GatedButton
72 |                   disabled={!isAnswerPresent}
73 |                   tooltip="Answer the question to continue"
74 |                   onClick={() => this.handleSubmit(formState.values)}
75 |                   type="submit"
76 |                 >
77 |                   Resume
78 |                 </GatedButton>
79 |               ) : (
80 |                 <GatedButton
81 |                   disabled={!isAnswerPresent}
82 |                   tooltip="Answer the question to continue"
83 |                   onClick={() =>
84 |                     this.setState({ activeQIndex: activeQIndex + 1 })
85 |                   }
86 |                   type="submit"
87 |                 >
88 |                   Next
89 |                 </GatedButton>
90 |               )}
91 |             </>
92 |           );
93 |         }}
94 |       </Form>
95 |     );
96 |   }
97 | }
98 |

--------------------------------------------------------------------------------
/src/components/questions/Grid.tsx:
--------------------------------------------------------------------------------
  1 | import { Stage, Layer, Rect, Text, Line, Circle } from "react-konva";
  2 | import { GridAxisLabel, GridAnswer } from "lib/types";
  3 | import { useRef } from "react";
  4 | import Konva from "konva";
  5 | 
  6 | const STAGE_SIZE = 400;
  7 | const RECT_SIZE = 250;
  8 | const CENTER = STAGE_SIZE / 2;
  9 | const BORDER_SIZE = (STAGE_SIZE - RECT_SIZE) / 2;
 10 | const BULLSEYE_LENGTH = 5;
 11 | 
 12 | const Bullseye = () => (
 13 |   <>
 14 |     <Line
 15 |       stroke="black"
 16 |       points={[
 17 |         CENTER,
 18 |         CENTER - BULLSEYE_LENGTH,
 19 |         CENTER,
 20 |         CENTER + BULLSEYE_LENGTH,
 21 |       ]}
 22 |       strokeWidth={1}
 23 |     />
 24 |     <Line
 25 |       stroke="black"
 26 |       points={[
 27 |         CENTER - BULLSEYE_LENGTH,
 28 |         CENTER,
 29 |         CENTER + BULLSEYE_LENGTH,
 30 |         CENTER,
 31 |       ]}
 32 |       strokeWidth={1}
 33 |     />
 34 |   </>
 35 | );
 36 | function getRelativePointerPosition(node: Konva.Rect) {
 37 |   const transform = node.getAbsoluteTransform().copy();
 38 |   // to detect relative position we need to invert transform
 39 |   transform.invert();
 40 | 
 41 |   // get pointer (say mouse or touch) position
 42 |   // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
 43 |   const pos = node.getStage()!.getPointerPosition()!;
 44 | 
 45 |   // now we can find relative point
 46 |   return transform.point(pos);
 47 | }
 48 | 
 49 | interface GridProps {
 50 |   label: string;
 51 |   xLabel?: GridAxisLabel;
 52 |   yLabel?: GridAxisLabel;
 53 |   x: number;
 54 |   y: number;
 55 |   onClick?: (xy: GridAnswer) => void;
 56 | }
 57 | const VALENCE = { low: "Negative", high: "Positive" };
 58 | const AROUSAL = { low: "Low Arousal", high: "High Arousal" };
 59 | export default function Grid({
 60 |   label,
 61 |   xLabel = VALENCE,
 62 |   yLabel = AROUSAL,
 63 |   x = 0.5,
 64 |   y = 0.5,
 65 |   onClick,
 66 | }: GridProps) {
 67 |   const rectRef = useRef<Konva.Rect>(null);
 68 |   return (
 69 |     <div>
 70 |       <div className="questionTitle">{label}</div>
 71 |       <Stage
 72 |         style={{ background: "white" }}
 73 |         width={STAGE_SIZE}
 74 |         height={STAGE_SIZE}
 75 |       >
 76 |         <Layer>
 77 |           <Rect
 78 |             ref={rectRef}
 79 |             x={BORDER_SIZE}
 80 |             y={BORDER_SIZE}
 81 |             width={RECT_SIZE}
 82 |             height={RECT_SIZE}
 83 |             stroke="black"
 84 |             strokeWidth={1}
 85 |             onClick={
 86 |               onClick !== undefined
 87 |                 ? () => {
 88 |                     // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
 89 |                     const pos = getRelativePointerPosition(rectRef.current!);
 90 |                     onClick({ x: pos.x / RECT_SIZE, y: 1 - pos.y / RECT_SIZE });
 91 |                   }
 92 |                 : undefined
 93 |             }
 94 |           />
 95 |           <Text
 96 |             text={xLabel.low}
 97 |             x={0}
 98 |             y={STAGE_SIZE / 2}
 99 |             align="center"
100 |             width={BORDER_SIZE}
101 |           />
102 |           <Text
103 |             text={xLabel.high}
104 |             x={STAGE_SIZE - BORDER_SIZE}
105 |             y={STAGE_SIZE / 2}
106 |             align="center"
107 |             width={BORDER_SIZE}
108 |           />
109 |           <Text
110 |             text={yLabel.low}
111 |             x={0}
112 |             y={STAGE_SIZE - BORDER_SIZE + 10}
113 |             align="center"
114 |             width={STAGE_SIZE}
115 |           />
116 |           <Text
117 |             text={yLabel.high}
118 |             x={0}
119 |             y={BORDER_SIZE - 20}
120 |             align="center"
121 |             width={STAGE_SIZE}
122 |           />
123 |           <Circle
124 |             fill="black"
125 |             radius={3}
126 |             x={BORDER_SIZE + x * RECT_SIZE}
127 |             y={STAGE_SIZE - BORDER_SIZE - y * RECT_SIZE}
128 |           />
129 |           <Bullseye />
130 |         </Layer>
131 |       </Stage>
132 |     </div>
133 |   );
134 | }
135 |

--------------------------------------------------------------------------------
/src/components/videoTask/VideoTaskView.tsx:
--------------------------------------------------------------------------------
  1 | // "Dumb" view component of the video task. Delegates to the paradigm-specific controller views
  2 | 
  3 | import { useRef, useState } from "react";
  4 | import ReactPlayer from "react-player";
  5 | import ReactMarkdown from "react-markdown";
  6 | import { AnswerSetWithMetadata, AnswerSet } from "lib/types";
  7 | import { OnDone, SavePartialData } from "./taskTypes";
  8 | 
  9 | interface VideoTaskViewProps {
 10 |   videoId: string;
 11 |   instructionsOverlay: string;
 12 |   onProgress?: (playedSeconds: number) => void;
 13 |   setPlaying: (p: boolean) => void;
 14 |   playing: boolean;
 15 |   renderQuestions: (
 16 |     onSubmit: (a: Omit<AnswerSetWithMetadata, "timestamp">) => void
 17 |   ) => React.ReactNode;
 18 |   onDone: OnDone;
 19 |   savePartialData: SavePartialData;
 20 | }
 21 | 
 22 | export default function VideoTaskView({
 23 |   videoId,
 24 |   instructionsOverlay,
 25 |   onDone,
 26 |   onProgress,
 27 |   setPlaying,
 28 |   playing,
 29 |   renderQuestions,
 30 |   savePartialData,
 31 | }: VideoTaskViewProps) {
 32 |   const playerRef = useRef<ReactPlayer>(null);
 33 |   const data = useRef<AnswerSetWithMetadata[]>([]);
 34 |   const [lastSavedAt, setLastSavedAt] = useState(0);
 35 | 
 36 |   // Add the new data point from VideoQuestions and resume the video
 37 |   function onSubmit(newValue: AnswerSet) {
 38 |     const withMetadata: AnswerSetWithMetadata = {
 39 |       ...newValue,
 40 |       timestamp: playerRef.current?.getCurrentTime() || 0,
 41 |     };
 42 |     data.current.push(withMetadata);
 43 |     setPlaying(true);
 44 |   }
 45 |   const getDimensions = () => {
 46 |     const width = (playerRef.current as any)?.wrapper.clientWidth;
 47 |     return {
 48 |       videoWidth: width,
 49 |       videoHeight: (width / 16) * 9,
 50 |     };
 51 |   };
 52 | 
 53 |   return (
 54 |     <div className="Video">
 55 |       <div>
 56 |         <OverlayInstruction
 57 |           instructionsOverlay={instructionsOverlay}
 58 |           onOpen={() => setPlaying(false)}
 59 |         />
 60 |       </div>
 61 |       <div className="videoContainer">
 62 |         <ReactPlayer
 63 |           className="videoPlayer"
 64 |           ref={playerRef}
 65 |           url={`https://vimeo.com/${videoId}`}
 66 |           onPlay={() => setPlaying(true)}
 67 |           onEnded={() => {
 68 |             onDone(data.current, getDimensions());
 69 |           }}
 70 |           onProgress={({ playedSeconds }) => {
 71 |             onProgress && onProgress(playedSeconds);
 72 |             if (playedSeconds - lastSavedAt > 10) {
 73 |               savePartialData(data.current, getDimensions());
 74 |               setLastSavedAt(playedSeconds);
 75 |             }
 76 |           }}
 77 |           playing={playing}
 78 |           width="100%"
 79 |           height="100%"
 80 |           config={{
 81 |             vimeo: {
 82 |               playerOptions: {
 83 |                 controls: false,
 84 |               },
 85 |             },
 86 |           }}
 87 |         />
 88 |       </div>
 89 |       <div className="questionContainer">{renderQuestions(onSubmit)}</div>
 90 |     </div>
 91 |   );
 92 | }
 93 | 
 94 | // Simple component for overlayed help panel
 95 | interface OverlayInstructionProps {
 96 |   instructionsOverlay: string;
 97 |   onOpen: () => void;
 98 | }
 99 | export function OverlayInstruction({
100 |   instructionsOverlay,
101 |   onOpen,
102 | }: OverlayInstructionProps) {
103 |   const [show, setShow] = useState(false);
104 |   return (
105 |     <>
106 |       <div
107 |         id="myNav"
108 |         className="overlay"
109 |         style={{ width: show ? "100%" : "0%" }}
110 |       >
111 |         <div
112 |           className="closebtn"
113 |           onClick={() => {
114 |             setShow(false);
115 |           }}
116 |         >
117 |           ×
118 |         </div>
119 |         <div className="overlay-content">
120 |           <ReactMarkdown children={instructionsOverlay} />
121 |         </div>
122 |       </div>
123 |       <div
124 |         className="instructionsButton"
125 |         onClick={() => {
126 |           setShow(true);
127 |           onOpen();
128 |         }}
129 |       >
130 |         Help
131 |       </div>
132 |     </>
133 |   );
134 | }
135 |

--------------------------------------------------------------------------------
/src/components/TrialBlock.tsx:
--------------------------------------------------------------------------------
  1 | import { useState, useRef } from "react";
  2 | import {
  3 |   TrialBlockConfig,
  4 |   AnswerSetWithMetadata,
  5 |   VideoToAnswerSet,
  6 | } from "lib/types";
  7 | import Instructions from "./Instructions";
  8 | import { zipObject, shuffle } from "lodash";
  9 | import ConsensusVideoTask from "./videoTask/ConsensusVideoTask";
 10 | import ContinuousVideoTask from "./videoTask/ContinuousVideoTask";
 11 | import SelfVideoTask from "./videoTask/SelfVideoTask";
 12 | import { useShuffled } from "lib/useShuffled";
 13 | import { SavePartialData } from "./videoTask/taskTypes";
 14 | import TimestampVideoTask from "./videoTask/TimestampVideoTask";
 15 | 
 16 | enum StageEnum {
 17 |   instructions,
 18 |   showingVid,
 19 |   betweenVids,
 20 | }
 21 | 
 22 | export interface TrialResult {
 23 |   answers: VideoToAnswerSet;
 24 |   videoWidth: number;
 25 |   videoHeight: number;
 26 | }
 27 | 
 28 | interface TrialBlockProps {
 29 |   config: TrialBlockConfig;
 30 |   onDone: (data: TrialResult) => void;
 31 |   onPartialSave: (data: TrialResult) => void;
 32 |   skipInstructions?: boolean;
 33 | }
 34 | export default function TrialBlock({
 35 |   config,
 36 |   onDone,
 37 |   onPartialSave,
 38 |   skipInstructions = false,
 39 | }: TrialBlockProps) {
 40 |   const [stage, setStage] = useState(
 41 |     skipInstructions ? StageEnum.showingVid : StageEnum.instructions
 42 |   );
 43 |   const [vidIndex, setVidIndex] = useState(0);
 44 |   const videos = useShuffled(config.videos, config.shuffleVideos);
 45 |   const questions = useShuffled(config?.questions || [], config?.shuffleVideos);
 46 |   const data = useRef<VideoToAnswerSet>(
 47 |     zipObject(
 48 |       videos.map((v) => v.id),
 49 |       videos.map(() => [])
 50 |     )
 51 |   );
 52 | 
 53 |   const currentVideo = videos[vidIndex];
 54 | 
 55 |   function onVideoEnd(
 56 |     a: AnswerSetWithMetadata[],
 57 |     d: { videoWidth: number; videoHeight: number }
 58 |   ) {
 59 |     data.current[currentVideo.id] = a;
 60 |     if (vidIndex === videos.length - 1) {
 61 |       // eslint-disable-next-line @typescript-eslint/no-explicit-any
 62 |       onDone({
 63 |         answers: data.current,
 64 |         videoWidth: d.videoWidth,
 65 |         videoHeight: d.videoHeight,
 66 |       });
 67 |     } else {
 68 |       setStage(StageEnum.betweenVids);
 69 |       setVidIndex((i) => i + 1);
 70 |     }
 71 |   }
 72 |   const savePartialData: SavePartialData = (a, d) => {
 73 |     onPartialSave({
 74 |       answers: { ...data.current, [currentVideo.id]: a },
 75 |       videoWidth: d.videoHeight,
 76 |       videoHeight: d.videoHeight,
 77 |     });
 78 |   };
 79 |   if (stage === StageEnum.instructions) {
 80 |     return (
 81 |       <Instructions
 82 |         onFinish={() => setStage(StageEnum.showingVid)}
 83 |         instructionScreens={config.instructions.instructionScreens}
 84 |       />
 85 |     );
 86 |   } else if (stage === StageEnum.showingVid) {
 87 |     switch (config.paradigm) {
 88 |       case "continuous":
 89 |         return (
 90 |           <ContinuousVideoTask
 91 |             videoId={currentVideo.id}
 92 |             grid={config.grid}
 93 |             instructions={config.instructions}
 94 |             savePartialData={savePartialData}
 95 |             onDone={onVideoEnd}
 96 |           />
 97 |         );
 98 |       case "consensus":
 99 |         return (
100 |           <ConsensusVideoTask
101 |             videoId={currentVideo.id}
102 |             timepoints={currentVideo.timepoints}
103 |             instructions={config.instructions}
104 |             questions={questions}
105 |             savePartialData={savePartialData}
106 |             onDone={onVideoEnd}
107 |           />
108 |         );
109 |       case "timestamp":
110 |         return (
111 |           <TimestampVideoTask
112 |             videoId={currentVideo.id}
113 |             instructions={config.instructions}
114 |             timestampPrompt={config.timestampPrompt}
115 |             savePartialData={savePartialData}
116 |             onDone={onVideoEnd}
117 |           />
118 |         );
119 |       case "self":
120 |         return (
121 |           <SelfVideoTask
122 |             videoId={currentVideo.id}
123 |             instructions={config.instructions}
124 |             questions={questions}
125 |             savePartialData={savePartialData}
126 |             onDone={onVideoEnd}
127 |           />
128 |         );
129 |     }
130 |   } else {
131 |     return (
132 |       <Instructions
133 |         onFinish={() => setStage(StageEnum.showingVid)}
134 |         instructionScreens={["Click next to watch the next video"]}
135 |       />
136 |     );
137 |   }
138 | }
139 |

--------------------------------------------------------------------------------
/src/lib/types.ts:
--------------------------------------------------------------------------------
  1 | import { NextApiRequest } from "next";
  2 | import { IronSession } from "iron-session";
  3 | 
  4 | interface User {
  5 |   admin: boolean;
  6 | }
  7 | declare module "iron-session" {
  8 |   interface IronSessionData {
  9 |     user?: User;
 10 |   }
 11 | }
 12 | export type NextApiRequestWithSess = NextApiRequest & { session: IronSession };
 13 | 
 14 | // ================ Experiment Config ======================
 15 | export type ExperimentMetadata = {
 16 |   id: string;
 17 |   nickname: string;
 18 | };
 19 | 
 20 | export type ExperimentConfig = {
 21 |   trialBlocks: TrialBlockConfig[];
 22 |   shuffleTrialBlocks: boolean;
 23 | };
 24 | 
 25 | export type TrialBlockConfig =
 26 |   | SelfParadigmTrialBlockConfig
 27 |   | TimestampParadigmTrialBlockConfig
 28 |   | ConsensusParadigmTrialBlockConfig
 29 |   | ContinuousParadigmTrialBlockConfig;
 30 | 
 31 | export type Paradigm = "consensus" | "self" | "continuous" | "timestamp";
 32 | interface BaseTrialBlockConfig<T extends BaseTestTrial = BaseTestTrial> {
 33 |   shuffleVideos: boolean;
 34 |   paradigm: Paradigm;
 35 |   videos: { id: string; timepoints: number[] }[];
 36 |   questions?: Question[];
 37 |   shuffleQuestions?: boolean;
 38 |   instructions: TrialInstructions;
 39 |   testTrial: T | { enabled: false };
 40 | }
 41 | 
 42 | type BaseTestTrial = {
 43 |   enabled: true;
 44 |   video: { id: string; timepoints: number[] };
 45 |   successMessage: string;
 46 |   failMessage: string;
 47 |   tryAgainMessage: string;
 48 | };
 49 | 
 50 | export interface TrialInstructions {
 51 |   instructionScreens: string[];
 52 |   instructionsOverlay: string;
 53 |   pauseInstructions?: string;
 54 | }
 55 | 
 56 | export interface SelfParadigmTrialBlockConfig
 57 |   extends BaseTrialBlockConfig<SelfTestTrial> {
 58 |   paradigm: "self";
 59 |   questions: Question[];
 60 |   shuffleQuestions: boolean;
 61 | }
 62 | 
 63 | export interface TimestampParadigmTrialBlockConfig
 64 |   extends BaseTrialBlockConfig<SelfTestTrial> {
 65 |   paradigm: "timestamp";
 66 |   timestampPrompt: TimestampPrompt;
 67 | }
 68 | 
 69 | export interface TimestampPrompt {
 70 |   buttonInstructions: string;
 71 |   buttonText: string;
 72 |  }
 73 | 
 74 | interface SelfTestTrial extends BaseTestTrial {
 75 |   minSegments: number;
 76 |   maxTries: number;
 77 | }
 78 | 
 79 | export interface ConsensusParadigmTrialBlockConfig
 80 |   extends BaseTrialBlockConfig {
 81 |   paradigm: "consensus";
 82 |   questions: Question[];
 83 |   shuffleQuestions: boolean;
 84 | }
 85 | 
 86 | export interface ContinuousParadigmTrialBlockConfig
 87 |   extends BaseTrialBlockConfig<ContinuousTestTrial> {
 88 |   paradigm: "continuous";
 89 |   grid: ContinuousGridConfig;
 90 | }
 91 | 
 92 | export type ContinuousGridConfig =
 93 |   | {
 94 |     label: string;
 95 |     dimensions: 1;
 96 |     axis: GridAxisLabel;
 97 |   }
 98 |   | {
 99 |     label: string;
100 |     dimensions: 2;
101 |     xAxis: GridAxisLabel;
102 |     yAxis: GridAxisLabel;
103 |   };
104 | 
105 | interface ContinuousTestTrial extends BaseTestTrial {
106 |   maxSeconds: number;
107 |   maxTries: number;
108 | }
109 | 
110 | export type Question = MCQuestion | ScaleQuestion | OpenQuestion | GridQuestion;
111 | 
112 | interface BaseQuestion {
113 |   label: string;
114 | }
115 | export interface MCQuestion extends BaseQuestion {
116 |   type: "mc";
117 |   choices: string[];
118 | }
119 | export interface ScaleQuestion extends BaseQuestion {
120 |   type: "scale";
121 |   choices: string[];
122 | }
123 | export interface OpenQuestion extends BaseQuestion {
124 |   type: "open";
125 | }
126 | export interface GridQuestion extends BaseQuestion {
127 |   type: "grid";
128 | }
129 | 
130 | export interface GridAxisLabel {
131 |   high: string;
132 |   low: string;
133 | }
134 | // ================ Experiment Collected Data ======================
135 | 
136 | export type ExperimentData = ExperimentDataEntry[];
137 | export interface ExperimentDataEntry {
138 |   videoWidth: number;
139 |   videoHeight: number;
140 |   browserWidth: number;
141 |   browserHeight: number;
142 |   totalDuration: number;
143 |   subjectID: string;
144 |   trialBlocks: ExperimentDataTrialBlock[];
145 | }
146 | 
147 | export interface ExperimentDataTrialBlock {
148 |   answers: VideoToAnswerSet;
149 |   paradigm: Paradigm;
150 | }
151 | export interface VideoToAnswerSet {
152 |   [vidId: string]: AnswerSetWithMetadata[];
153 | }
154 | export interface AnswerSetWithMetadata extends AnswerSet {
155 |   questionTime?: number;
156 |   timestamp: number;
157 | }
158 | 
159 | export interface AnswerSet {
160 |   [questionId: number]: Answer;
161 | }
162 | 
163 | export type Answer = GridAnswer | string;
164 | export type GridAnswer = { x: number; y?: number };
165 | 
166 | //================== Frontend Only ====================
167 | export interface QuestionBaseProp {
168 |   id: string;
169 | }
170 |

--------------------------------------------------------------------------------
/src/lib/db.ts:
--------------------------------------------------------------------------------
  1 | import AWS from "aws-sdk";
  2 | import { v4 as uuidv4 } from "uuid";
  3 | import { ExperimentConfig, ExperimentData, ExperimentDataEntry } from "./types";
  4 | import sampleConfig from "./config/sampleConfig";
  5 | import { ServiceConfigurationOptions } from "aws-sdk/lib/service";
  6 | import bcrypt from "bcrypt";
  7 | import { hashCode } from "./hashCode";
  8 | 
  9 | const CONFIG: ServiceConfigurationOptions = {
 10 |   accessKeyId: process.env.ACCESS_KEY_ID,
 11 |   secretAccessKey: process.env.SECRET_KEY,
 12 |   region: "us-east-1",
 13 |   endpoint: process.env.DYNAMO_ENDPOINT,
 14 | };
 15 | 
 16 | const dynamodb = new AWS.DynamoDB(CONFIG);
 17 | const docClient = new AWS.DynamoDB.DocumentClient(CONFIG);
 18 | const table = process.env.DYNAMO_TABLE || "empathic-accuracy";
 19 | 
 20 | type DBConfig = { id: string; nickname: string; config: ExperimentConfig };
 21 | 
 22 | /** PRIVATE */
 23 | const scanPaginated = async <T>(
 24 |   params: AWS.DynamoDB.DocumentClient.ScanInput
 25 | ): Promise<T[]> => {
 26 |   const _query = async (
 27 |     params: AWS.DynamoDB.DocumentClient.ScanInput,
 28 |     startKey?: AWS.DynamoDB.DocumentClient.Key
 29 |   ): Promise<AWS.DynamoDB.QueryOutput> => {
 30 |     if (startKey) {
 31 |       params.ExclusiveStartKey = startKey;
 32 |     }
 33 |     console.log("scan", params);
 34 |     return docClient.scan(params).promise();
 35 |   };
 36 |   let lastEvaluatedKey = undefined;
 37 |   let rows: T[] = [];
 38 |   do {
 39 |     const result: AWS.DynamoDB.ScanOutput = await _query(
 40 |       params,
 41 |       lastEvaluatedKey
 42 |     );
 43 |     const items = result.Items as T[] | undefined;
 44 |     if (items) {
 45 |       rows = rows.concat(items);
 46 |     }
 47 |     lastEvaluatedKey = result.LastEvaluatedKey;
 48 |   } while (lastEvaluatedKey);
 49 |   return rows;
 50 | };
 51 | 
 52 | /** EXPORTED */
 53 | 
 54 | export async function setupTable() {
 55 |   await dynamodb
 56 |     .createTable({
 57 |       TableName: table,
 58 |       KeySchema: [{ AttributeName: "id", KeyType: "HASH" }],
 59 |       AttributeDefinitions: [{ AttributeName: "id", AttributeType: "S" }],
 60 |       BillingMode: "PAY_PER_REQUEST",
 61 |     })
 62 |     .promise();
 63 | }
 64 | 
 65 | export async function createExperiment(): Promise<string> {
 66 |   const exId = uuidv4();
 67 |   const exp: DBConfig = {
 68 |     id: `CONFIG-${exId}`,
 69 |     nickname: "Blank Experiment",
 70 |     config: sampleConfig,
 71 |   };
 72 |   await docClient
 73 |     .put({
 74 |       TableName: table,
 75 |       Item: exp,
 76 |     })
 77 |     .promise();
 78 |   return exId;
 79 | }
 80 | 
 81 | export async function getExperiments(): Promise<DBConfig[]> {
 82 |   const items = await scanPaginated<DBConfig>({
 83 |     TableName: table,
 84 |     FilterExpression: "attribute_exists(config)",
 85 |   });
 86 |   for (const item of items) {
 87 |     item.id = item.id.slice("CONFIG-".length);
 88 |   }
 89 |   return items || [];
 90 | }
 91 | 
 92 | export async function getExperiment(
 93 |   experimentId: string
 94 | ): Promise<DBConfig | undefined> {
 95 |   const item = (
 96 |     await docClient
 97 |       .get({
 98 |         TableName: table,
 99 |         Key: { id: `CONFIG-${experimentId}` },
100 |       })
101 |       .promise()
102 |   ).Item as DBConfig | undefined;
103 |   if (item !== undefined) {
104 |     item.id = item.id.slice("CONFIG-".length);
105 |   }
106 |   return item as DBConfig;
107 | }
108 | 
109 | export async function setExperiment(
110 |   experimentId: string,
111 |   nickname: string,
112 |   config: ExperimentConfig
113 | ) {
114 |   await docClient
115 |     .update({
116 |       TableName: table,
117 |       Key: {
118 |         id: `CONFIG-${experimentId}`,
119 |       },
120 |       UpdateExpression: `SET config=:config, nickname=:nickname`,
121 |       ExpressionAttributeValues: {
122 |         ":config": config,
123 |         ":nickname": nickname,
124 |       },
125 |     })
126 |     .promise();
127 | }
128 | 
129 | export async function getAllData(
130 |   experimentId: string
131 | ): Promise<ExperimentData | undefined> {
132 |   const item = await scanPaginated<{ subjectData: ExperimentDataEntry }>({
133 |     TableName: table,
134 |     FilterExpression: "begins_with(id, :d)",
135 |     ExpressionAttributeValues: {
136 |       ":d": `DATA-${experimentId}-`,
137 |     },
138 |   });
139 |   return item.map((i) => i.subjectData);
140 | }
141 | 
142 | export async function putDataEntry(
143 |   experimentId: string,
144 |   dataEntry: ExperimentDataEntry
145 | ) {
146 |   const dataId = Buffer.from(hashCode(dataEntry.subjectID).toString()).toString(
147 |     "hex"
148 |   );
149 |   await docClient
150 |     .put({
151 |       TableName: table,
152 |       Item: {
153 |         id: `DATA-${experimentId}-${dataId}`,
154 |         subjectData: dataEntry,
155 |       },
156 |     })
157 |     .promise();
158 | }
159 | 
160 | export async function getByKey<T>(key: string): Promise<T> {
161 |   return (await docClient.get({ TableName: table, Key: { id: key } }).promise())
162 |     .Item as T;
163 | }
164 |

--------------------------------------------------------------------------------
/src/App.css:
--------------------------------------------------------------------------------
  1 | /* body {
  2 |   margin: 0;
  3 |   padding: 0;
  4 |   font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen",
  5 |     "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue",
  6 |     sans-serif;
  7 |   -webkit-font-smoothing: antialiased;
  8 |   -moz-osx-font-smoothing: grayscale;
  9 | } */
 10 | 
 11 | #opaqueLayer {
 12 |   position: absolute;
 13 |   width: 640px;
 14 |   height: 360px;
 15 | }
 16 | 
 17 | .App {
 18 |   display: flex;
 19 |   justify-content: center;
 20 |   height: 100vh;
 21 | }
 22 | 
 23 | .video {
 24 |   box-shadow: 3px 3px 5px 1px #ccc;
 25 | }
 26 | 
 27 | .questionContainer form > div {
 28 |   display: none;
 29 | }
 30 | 
 31 | .questionContainer form div.activeQuestion {
 32 |   display: block;
 33 | }
 34 | 
 35 | .questionContainer {
 36 |   min-height: 100px;
 37 |   padding: 10px;
 38 |   background-color: #eee;
 39 |   border-radius: 5px;
 40 |   display: flex;
 41 |   justify-content: center;
 42 |   grid-row: 2/8;
 43 | }
 44 | 
 45 | .questionContainer form {
 46 |   min-width: 400px;
 47 |   width: 100%;
 48 |   display: flex;
 49 |   flex-direction: column;
 50 |   align-content: space-between;
 51 | }
 52 | 
 53 | form .OpenQuestion {
 54 |   width: 100%;
 55 | }
 56 | 
 57 | .textarea {
 58 |   resize: both;
 59 | }
 60 | 
 61 | .questionPlaceholder {
 62 |   margin: auto;
 63 |   font-size: 1.15vw;
 64 |   display: flex;
 65 |   flex-direction: column;
 66 |   padding: 20px;
 67 |   min-width: 400px;
 68 | }
 69 | 
 70 | .instructionsContainer {
 71 |   display: flex;
 72 |   flex-direction: column;
 73 |   align-items: center;
 74 |   justify-content: center;
 75 |   width: 100%;
 76 |   height: 100%;
 77 | }
 78 | 
 79 | .instructionsText {
 80 |   max-width: 700px;
 81 |   width: inherit;
 82 |   font-size: 1.4em;
 83 |   font-weight: 300;
 84 |   padding-bottom: 20px;
 85 | }
 86 | 
 87 | .buttonContainer {
 88 |   max-width: 700px;
 89 |   display: flex;
 90 |   width: 100%;
 91 |   justify-content: space-between;
 92 | }
 93 | 
 94 | .questionContainer form input[type="radio"] {
 95 |   margin-right: 10px;
 96 | }
 97 | 
 98 | .questionContainer form input[type="radio"]:hover {
 99 |   cursor: pointer;
100 | }
101 | 
102 | .questionContainer form .questionTitle {
103 |   font-size: 20px;
104 |   font-weight: 500;
105 | }
106 | 
107 | .questionContainer form .likertQ {
108 |   font-size: 20px;
109 |   font-weight: 500;
110 | }
111 | 
112 | .questionContainer label,
113 | .questionContainer .questionPlaceholder {
114 |   font-weight: lighter;
115 | }
116 | 
117 | #pauseButton {
118 |   align-self: center;
119 | }
120 | 
121 | .questionContainer form button,
122 | .questionPlaceholder button {
123 |   align-self: end;
124 |   margin-top: 10px;
125 |   padding: 5px 10px;
126 | }
127 | 
128 | .questionContainer form textarea {
129 |   padding-left: 10px !important;
130 |   padding-top: 10px;
131 | }
132 | 
133 | .grid img {
134 |   width: 400px;
135 | }
136 | 
137 | .configForm {
138 |   min-width: 400px;
139 | }
140 | 
141 | .configForm #root_trialBlocks > .array-item-list > .array-item:after{
142 |   content: "";
143 |   border-bottom: 2px solid black;
144 |   margin-bottom: 30px;
145 |   width: 100%;
146 | }
147 | 
148 | .grid .CircleContainer {
149 |   position: relative;
150 |   width: 100%;
151 |   height: 100%;
152 | }
153 | 
154 | .grid .circle {
155 |   position: absolute;
156 |   border-radius: 50%;
157 |   width: 10px;
158 |   height: 10px;
159 |   margin-left: -5px;
160 |   margin-top: -5px;
161 |   background: #000;
162 | }
163 | 
164 | form .likert {
165 |   list-style: none;
166 |   width: 100%;
167 |   margin: 10px 0px 10px 0px;
168 |   display: flex;
169 |   border-bottom: 2px solid #efefef;
170 |   justify-content: space-around;
171 |   flex-direction: row;
172 | }
173 | 
174 | form .likert li {
175 |   display: inline-block;
176 |   text-align: center;
177 |   vertical-align: top;
178 |   flex-basis: 0;
179 |   flex-grow: 1;
180 | }
181 | form .likert li input[type="radio"] {
182 |   display: block;
183 |   position: relative;
184 |   top: 0;
185 |   left: 50%;
186 |   margin-left: -6px;
187 | }
188 | form .likert li label {
189 |   width: 100%;
190 | }
191 | 
192 | .completionID {
193 |   font-weight: bold;
194 | }
195 | 
196 | .completionLink {
197 |   font-weight: bold;
198 | }
199 | 
200 | .instructionsButton:hover {
201 |   cursor: pointer;
202 |   color: #656569;
203 |   display: block;
204 |   transition: 0.1s;
205 | }
206 | 
207 | .instructionsButton {
208 |   padding: 5px 10px;
209 |   background-color: #bebebe;
210 |   font-weight: lighter;
211 |   font-size: 13px;
212 |   color: #000000;
213 |   position: fixed;
214 |   left: 5px;
215 |   top: 5px;
216 | }
217 | 
218 | .Video {
219 |   display: grid;
220 |   grid-template-columns: 2fr 1fr;
221 |   grid-template-rows: repeat(8, 1fr);
222 |   width: 90%;
223 |   grid-column-gap: 5px;
224 | }
225 | 
226 | .videoContainer {
227 |   position: relative;
228 |   grid-row: 2/8;
229 | }
230 | 
231 | .videoPlayer {
232 |   position: absolute;
233 |   top: 0;
234 |   left: 0;
235 |   width: 100%;
236 |   height: 100%;
237 |   background-color: black;
238 | }
239 | 
240 | .videoInstructions {
241 |   font-size: 100px;
242 | }
243 | 
244 | .overlay {
245 |   color: #bebebe;
246 |   height: 100%;
247 |   width: 0;
248 |   position: fixed;
249 |   z-index: 1;
250 |   top: 0;
251 |   left: 0;
252 |   background-color: rgb(0, 0, 0);
253 |   background-color: rgba(0, 0, 0, 0.9);
254 |   overflow-x: hidden;
255 |   transition: 0.5s;
256 | }
257 | 
258 | .overlay .overlay-content {
259 |   position: relative;
260 |   top: 25%;
261 |   width: 100%;
262 |   text-align: center;
263 | }
264 | 
265 | .overlay a {
266 |   padding: 8px;
267 |   text-decoration: none;
268 |   font-size: 36px;
269 |   color: #818181;
270 |   display: block;
271 |   transition: 0.3s;
272 | }
273 | 
274 | .overlay a:hover,
275 | .overlay a:focus {
276 |   color: #f1f1f1;
277 | }
278 | 
279 | .overlay .closebtn {
280 |   position: absolute;
281 |   cursor: pointer;
282 |   top: 20px;
283 |   right: 45px;
284 |   font-size: 60px;
285 | }
286 | 
287 | .panel h2 {
288 |   margin-top: 20px;
289 | }
290 |

--------------------------------------------------------------------------------
/src/components/ExperimentRunner.tsx:
--------------------------------------------------------------------------------
  1 | import React from "react";
  2 | import { Beforeunload } from "react-beforeunload";
  3 | import {
  4 |   ExperimentDataEntry,
  5 |   ExperimentConfig,
  6 |   ExperimentDataTrialBlock,
  7 |   TrialBlockConfig,
  8 | } from "lib/types";
  9 | import { TrialResult } from "./TrialBlock";
 10 | import GatedButton from "./GatedButton";
 11 | import ReactMarkdown from "react-markdown";
 12 | import TrialBlockWrapper from "./TrialBlockWrapper";
 13 | import { shuffle } from "lodash";
 14 | 
 15 | interface ExperimentRunnerProps {
 16 |   config: ExperimentConfig;
 17 |   sendData: (data: ExperimentDataEntry) => void;
 18 | }
 19 | 
 20 | interface ExperimentRunnerState {
 21 |   stage: StageEnum;
 22 |   startTime: number;
 23 |   subjectID: string;
 24 |   data: ExperimentDataTrialBlock[];
 25 |   trialBlockIndex: number;
 26 |   trialBlocks: TrialBlockConfig[];
 27 | }
 28 | 
 29 | enum StageEnum {
 30 |   enterSubjectID,
 31 |   experiment,
 32 |   done,
 33 |   fail,
 34 | }
 35 | const INITIALSTATE: ExperimentRunnerState = {
 36 |   stage: StageEnum.enterSubjectID,
 37 |   startTime: 0,
 38 |   subjectID: "",
 39 |   data: [],
 40 |   trialBlockIndex: 0,
 41 |   trialBlocks: [],
 42 | };
 43 | 
 44 | class ExperimentRunner extends React.Component<
 45 |   ExperimentRunnerProps,
 46 |   ExperimentRunnerState
 47 | > {
 48 |   constructor(props: ExperimentRunnerProps) {
 49 |     super(props);
 50 |     // Parse csv timepoints
 51 |     this.state = {
 52 |       ...INITIALSTATE,
 53 |       trialBlocks: props.config.shuffleTrialBlocks
 54 |         ? shuffle(props.config.trialBlocks)
 55 |         : props.config.trialBlocks,
 56 |     };
 57 |   }
 58 | 
 59 |   // The user has closed the tab - save data to localstorage.
 60 |   onClose(e: Event) {
 61 |     if (![StageEnum.done, StageEnum.fail].includes(this.state.stage)) {
 62 |       e.preventDefault();
 63 |       return "You are in the middle of the experiment!";
 64 |     }
 65 |     return null;
 66 |   }
 67 | 
 68 |   renderExperiment() {
 69 |     const { trialBlockIndex } = this.state;
 70 |     const config = this.state.trialBlocks[trialBlockIndex];
 71 |     const buildData = (
 72 |       data: ExperimentDataTrialBlock[],
 73 |       result: TrialResult,
 74 |       unfinished?: boolean
 75 |     ) => ({
 76 |       trialBlocks: data,
 77 |       videoHeight: result.videoHeight,
 78 |       videoWidth: result.videoWidth,
 79 |       browserWidth: Math.max(
 80 |         document.documentElement.clientWidth,
 81 |         window.innerWidth || 0
 82 |       ),
 83 |       browserHeight: Math.max(
 84 |         document.documentElement.clientHeight,
 85 |         window.innerHeight || 0
 86 |       ),
 87 |       subjectID: this.state.subjectID,
 88 |       totalDuration: (Date.now() - this.state.startTime) / 1000,
 89 |       unfinished: unfinished ? true : undefined,
 90 |     });
 91 |     return (
 92 |       <TrialBlockWrapper
 93 |         key={trialBlockIndex}
 94 |         config={config}
 95 |         onFail={() => {
 96 |           this.setState({ stage: StageEnum.fail });
 97 |         }}
 98 |         onPartialSave={(result) => {
 99 |           const newData = [
100 |             ...this.state.data,
101 |             {
102 |               answers: result.answers,
103 |               paradigm: config.paradigm,
104 |             },
105 |           ];
106 |           this.props.sendData(buildData(newData, result, true));
107 |         }}
108 |         onDone={(result) => {
109 |           const newData = [
110 |             ...this.state.data,
111 |             {
112 |               answers: result.answers,
113 |               paradigm: config.paradigm,
114 |             },
115 |           ];
116 |           if (trialBlockIndex === this.state.trialBlocks.length - 1) {
117 |             this.props.sendData(buildData(newData, result));
118 |             this.setState({ stage: StageEnum.done });
119 |           } else {
120 |             this.setState({
121 |               data: newData,
122 |               trialBlockIndex: trialBlockIndex + 1,
123 |             });
124 |           }
125 |         }}
126 |       />
127 |     );
128 |   }
129 | 
130 |   renderDone() {
131 |     return (
132 |       <div className="instructionsContainer">
133 |         <p className="instructionsText">Thank you for participating.</p>
134 |         <p className="instructionsText">You can close this browser tab.</p>
135 |       </div>
136 |     );
137 |   }
138 | 
139 |   renderStage() {
140 |     const { stage } = this.state;
141 | 
142 |     switch (stage) {
143 |       case StageEnum.enterSubjectID:
144 |         return this.renderEnterSubjectID();
145 |       case StageEnum.experiment:
146 |         return this.renderExperiment();
147 |       case StageEnum.done:
148 |         return this.renderDone();
149 |       case StageEnum.fail:
150 |         return this.renderFail();
151 |       default:
152 |         return null;
153 |     }
154 |   }
155 | 
156 |   renderFail() {
157 |     const { testTrial } = this.state.trialBlocks[this.state.trialBlockIndex];
158 |     if (testTrial.enabled) {
159 |       return (
160 |         <div className="instructionsContainer">
161 |           <p className="instructionsText">
162 |             <ReactMarkdown children={testTrial.failMessage} />
163 |           </p>
164 |         </div>
165 |       );
166 |     } else {
167 |       return <div>error state</div>;
168 |     }
169 |   }
170 | 
171 |   renderEnterSubjectID() {
172 |     return (
173 |       <div className="instructionsContainer">
174 |         <div>
175 |           Please enter your subject ID:
176 |           <input
177 |             onChange={(e) => this.setState({ subjectID: e.target.value })}
178 |             value={this.state.subjectID}
179 |           />
180 |           <GatedButton
181 |             disabled={!this.state.subjectID}
182 |             tooltip="Enter your subject ID to continue"
183 |             type="button"
184 |             onClick={() => this.setState({ stage: StageEnum.experiment })}
185 |           >
186 |             Next ›
187 |           </GatedButton>
188 |         </div>
189 |       </div>
190 |     );
191 |   }
192 | 
193 |   render() {
194 |     return (
195 |       <Beforeunload
196 |         onBeforeunload={(e: Event) => {
197 |           this.onClose(e);
198 |         }}
199 |       >
200 |         {this.renderStage()}
201 |       </Beforeunload>
202 |     );
203 |   }
204 | }
205 | 
206 | export default ExperimentRunner;
207 |

--------------------------------------------------------------------------------
/src/components/admin/ExperimentConfigurator.tsx:
--------------------------------------------------------------------------------
  1 | import React, { useState } from "react";
  2 | import SchemaForm from "react-jsonschema-form-bs4";
  3 | import Axios from "axios";
  4 | import { useBeforeunload } from "react-beforeunload";
  5 | import schema from "lib/config/configSchema";
  6 | import uiSchema from "lib/config/configUISchema";
  7 | import { ExperimentConfig, TrialBlockConfig } from "lib/types";
  8 | import { useAxios } from "lib/useAxios";
  9 | import { downloadExperimentData } from "lib/downloadData";
 10 | import {
 11 |   Spinner,
 12 |   Navbar,
 13 |   FormControl,
 14 |   Form,
 15 |   Button,
 16 |   Container,
 17 |   Toast,
 18 |   Modal,
 19 | } from "react-bootstrap";
 20 | import {
 21 |   SetExperimentParams,
 22 |   GetExperimentResponse,
 23 | } from "pages/api/experiment/[exId]";
 24 | import Link from "next/link";
 25 | import { useRouter } from "next/router";
 26 | import GatedButton from "components/GatedButton";
 27 | 
 28 | interface ExperimentConfiguratorProps {
 29 |   experimentId: string;
 30 | }
 31 | 
 32 | type DistributiveOmit<T, K extends keyof T> = T extends unknown
 33 |   ? Omit<T, K>
 34 |   : never;
 35 | 
 36 | // rawconfig is used by formschema and must be transformed before upload
 37 | // difference timepoints are comma separated string
 38 | type RawTrialBlockConfig = DistributiveOmit<TrialBlockConfig, "videos"> & {
 39 |   videos: { id: string; timepoints?: string }[];
 40 | };
 41 | 
 42 | type RawConfig = Omit<ExperimentConfig, "trialBlocks"> & {
 43 |   trialBlocks: RawTrialBlockConfig[];
 44 | };
 45 | 
 46 | export default function ExperimentConfigurator({
 47 |   experimentId,
 48 | }: ExperimentConfiguratorProps) {
 49 |   const experimentURL = `/api/experiment/${experimentId}`;
 50 |   const [nickname, setNickname] = useState("");
 51 |   const [config, setConfig] = useState<RawConfig>();
 52 |   const [isUnsaved, setIsUnsaved] = useState(false);
 53 | 
 54 |   const [showSaved, setShowSaved] = useState(false);
 55 |   const [showModal, setShowModal] = useState(false);
 56 |   const router = useRouter();
 57 | 
 58 |   useAxios(
 59 |     experimentURL,
 60 |     (data: GetExperimentResponse) => {
 61 |       const raw: RawConfig = {
 62 |         ...data.config,
 63 |         trialBlocks: data.config.trialBlocks.map((t) => ({
 64 |           ...t,
 65 |           videos: t.videos.map((v) => ({
 66 |             ...v,
 67 |             timepoints: v.timepoints.join(","),
 68 |           })),
 69 |         })),
 70 |       };
 71 |       setConfig(raw);
 72 |       setNickname(data.nickname);
 73 |       setIsUnsaved(false);
 74 |     },
 75 |     [setConfig, setNickname]
 76 |   );
 77 | 
 78 |   function save(newConf: RawConfig, newNickname: string) {
 79 |     const exConf: ExperimentConfig = {
 80 |       ...newConf,
 81 |       trialBlocks: newConf.trialBlocks.map((t) => ({
 82 |         ...t,
 83 |         videos: t.videos.map((v) => ({
 84 |           ...v,
 85 |           timepoints: v.timepoints ? v.timepoints.split(",").map(Number) : [],
 86 |         })),
 87 |       })),
 88 |     };
 89 |     const newExp: SetExperimentParams = {
 90 |       nickname: newNickname,
 91 |       config: exConf,
 92 |     };
 93 |     setIsUnsaved(false);
 94 |     Axios.post(experimentURL, newExp)
 95 |       .then(() => setShowSaved(true))
 96 |       .catch((error) => {
 97 |         setIsUnsaved(true);
 98 |         console.log(error);
 99 |       });
100 |   }
101 | 
102 |   useBeforeunload((e) => {
103 |     if (isUnsaved) {
104 |       e.preventDefault();
105 |       return "You have unsaved changes";
106 |     }
107 |     return null;
108 |   });
109 | 
110 |   return (
111 |     <>
112 |       <Navbar sticky="top" bg="light" className="shadow-sm">
113 |         <Link href="/admin">
114 |           <a
115 |             onClick={(e) => {
116 |               if (isUnsaved) {
117 |                 e.preventDefault();
118 |                 setShowModal(true);
119 |               }
120 |             }}
121 |           >
122 |             <i className="fas fa-arrow-left mr-4" />
123 |           </a>
124 |         </Link>
125 |         <Form
126 |           onSubmit={(e: React.FormEvent) => e.preventDefault()}
127 |           className="flex-grow-1 d-flex"
128 |         >
129 |           <span className="mr-2">Nickname:</span>
130 |           <FormControl
131 |             type="text"
132 |             value={nickname}
133 |             onChange={(e) => {
134 |               setIsUnsaved(true);
135 |               setNickname(e.currentTarget.value);
136 |             }}
137 |           />
138 |           <Button
139 |             variant="secondary"
140 |             onClick={() => downloadExperimentData(experimentId)}
141 |             className="ml-auto"
142 |           >
143 |             <span className="mr-2">Download Data</span>
144 |             <i className="fas fa-download" />
145 |           </Button>
146 |         </Form>
147 |       </Navbar>
148 |       <Container className="mt-3 pb-5">
149 |         <h2>Configure Experiment</h2>
150 |         {config ? (
151 |           <SchemaForm
152 |             className="configForm"
153 |             schema={schema}
154 |             uiSchema={uiSchema}
155 |             formData={config}
156 |             onChange={({ formData }) => {
157 |               setIsUnsaved(true);
158 |               setConfig(formData);
159 |             }}
160 |             onSubmit={({ formData }) => save(formData, nickname)}
161 |           >
162 |             <GatedButton
163 |               type="submit"
164 |               tooltip="All changes saved!"
165 |               disabled={!isUnsaved}
166 |             >
167 |               Save
168 |             </GatedButton>
169 |           </SchemaForm>
170 |         ) : (
171 |           <Spinner role="status" animation="border" />
172 |         )}
173 |       </Container>
174 |       <Toast
175 |         autohide
176 |         delay={3000}
177 |         onClose={() => setShowSaved(false)}
178 |         show={showSaved}
179 |         style={{ position: "fixed", right: 20, bottom: 20 }}
180 |       >
181 |         <Toast.Body>
182 |           <i className="fas fa-save mr-2" />
183 |           Saved experiment configuration!
184 |         </Toast.Body>
185 |       </Toast>
186 |       <Modal show={showModal} onHide={() => setShowModal(false)}>
187 |         <Modal.Header closeButton>
188 |           <Modal.Title>Do you want to save changes?</Modal.Title>
189 |         </Modal.Header>
190 | 
191 |         <Modal.Body>
192 |           <p>{"Your changes will be lost if you don't save them"}</p>
193 |         </Modal.Body>
194 | 
195 |         <Modal.Footer>
196 |           <Button
197 |             className="mr-auto"
198 |             variant="secondary"
199 |             onClick={() => router.back()}
200 |           >
201 |             {"Don't Save"}
202 |           </Button>
203 |           <Button variant="secondary" onClick={() => setShowModal(false)}>
204 |             Cancel
205 |           </Button>
206 |           <Button
207 |             variant="primary"
208 |             onClick={() => {
209 |               save(config as RawConfig, nickname);
210 |               router.back();
211 |             }}
212 |           >
213 |             Save
214 |           </Button>
215 |         </Modal.Footer>
216 |       </Modal>
217 |     </>
218 |   );
219 | }
220 |

--------------------------------------------------------------------------------
/src/lib/config/configSchema.ts:
--------------------------------------------------------------------------------
  1 | import { JSONSchema6 } from "json-schema";
  2 | const trialBlock: JSONSchema6 = {
  3 |   type: "object",
  4 |   required: [],
  5 |   properties: {
  6 |     testTrial: {
  7 |       type: "object",
  8 |       title: "Test Trial Config",
  9 |       properties: {
 10 |         enabled: {
 11 |           type: "boolean",
 12 |           title: "Run test trial",
 13 |           description:
 14 |             "When selected, this trial will be preceded by a test trial that will not be recorded.",
 15 |           default: false,
 16 |         },
 17 |       },
 18 |     },
 19 |     instructions: {
 20 |       type: "object",
 21 |       title: "Customize Instructions",
 22 |       description: "Markdown: *italics*, **bold**",
 23 |       properties: {
 24 |         instructionScreens: {
 25 |           type: "array",
 26 |           title: "Instruction screens",
 27 |           items: {
 28 |             type: "string",
 29 |             title: "",
 30 |           },
 31 |           default: [
 32 |             "Welcome to the empathy study, and thanks for participating! On the following screen, you will see more instructions on what you will be asked to do.",
 33 |             "In this study, you will be shown a video and asked a set of questions about the video. You can answer these questions at any point. To be shown the questions, just pause the video. Click next to continue to the experiment.",
 34 |           ],
 35 |         },
 36 |         instructionsOverlay: {
 37 |           type: "string",
 38 |           title: "Overlay help instructions during experiment",
 39 |           default: "insert instructions here",
 40 |         },
 41 |       },
 42 |     },
 43 |     videos: {
 44 |       type: "array",
 45 |       title: "Vimeo Video IDs",
 46 |       items: {
 47 |         type: "object",
 48 |         title: "",
 49 |         properties: {
 50 |           id: {
 51 |             type: "string",
 52 |           },
 53 |         },
 54 |       },
 55 |       default: [{ id: "314909286/3623e43bae" }],
 56 |     },
 57 |     shuffleVideos: {
 58 |       type: "boolean",
 59 |       title: "Shuffle Order Videos Are Shown",
 60 |       default: true,
 61 |     },
 62 |     paradigm: {
 63 |       type: "string",
 64 |       title: "Data Collection Paradigm",
 65 |       enum: ["self", "consensus", "continuous", "timestamp"],
 66 |       default: "self",
 67 |     },
 68 |   },
 69 |   dependencies: {
 70 |     paradigm: {
 71 |       oneOf: [
 72 |         {
 73 |           properties: {
 74 |             paradigm: {
 75 |               enum: ["continuous"],
 76 |             },
 77 |             grid: {
 78 |               type: "object",
 79 |               title: "Grid Settings",
 80 |               properties: {
 81 |                 dimensions: {
 82 |                   type: "number",
 83 |                   title: "Grid dimensions",
 84 |                   enum: [1, 2],
 85 |                   default: 1,
 86 |                 },
 87 |                 label: {
 88 |                   type: "string",
 89 |                   title: "Instruction text shown above the Affect Grid",
 90 |                   default: "",
 91 |                 },
 92 |               },
 93 |               required: ["dimensions", "label"],
 94 |               dependencies: {
 95 |                 dimensions: {
 96 |                   oneOf: [
 97 |                     {
 98 |                       properties: {
 99 |                         dimensions: { enum: [1] },
100 |                         axis: {
101 |                           $ref: "#/definitions/axis",
102 |                         },
103 |                       },
104 |                     },
105 |                     {
106 |                       properties: {
107 |                         dimensions: { enum: [2] },
108 |                         xAxis: {
109 |                           $ref: "#/definitions/axis",
110 |                         },
111 |                         yAxis: {
112 |                           $ref: "#/definitions/axis",
113 |                         },
114 |                       },
115 |                     },
116 |                   ],
117 |                 },
118 |               },
119 |             },
120 |             testTrial: {
121 |               dependencies: {
122 |                 enabled: {
123 |                   oneOf: [
124 |                     {
125 |                       properties: {
126 |                         enabled: { enum: [false] },
127 |                       },
128 |                     },
129 |                     {
130 |                       properties: {
131 |                         enabled: { enum: [true] },
132 |                         video: {
133 |                           type: "object",
134 |                           title: "",
135 |                           properties: {
136 |                             id: {
137 |                               type: "string",
138 |                               title: "test trial video id",
139 |                             },
140 |                           },
141 |                         },
142 |                         maxSeconds: {
143 |                           type: "number",
144 |                           title: "Maximum seconds between mouse movements",
145 |                           default: 30,
146 |                         },
147 |                         maxTries: {
148 |                           type: "number",
149 |                           title: "Number of test trials allowed",
150 |                           default: 2,
151 |                         },
152 |                         successMessage: {
153 |                           type: "string",
154 |                           title: "message to show when test trial succeeds",
155 |                         },
156 |                         tryAgainMessage: {
157 |                           type: "string",
158 |                           title:
159 |                             "message to show when test trial is failed and they must try again",
160 |                         },
161 |                         failMessage: {
162 |                           type: "string",
163 |                           title:
164 |                             "message to show when test trial is failed too many times",
165 |                         },
166 |                       },
167 |                       required: [
168 |                         "video",
169 |                         "maxSeconds",
170 |                         "maxTries",
171 |                         "successMessage",
172 |                         "tryAgainMessage",
173 |                         "failMessage",
174 |                       ],
175 |                     },
176 |                   ],
177 |                 },
178 |               },
179 |             },
180 |           },
181 |         },
182 |         {
183 |           properties: {
184 |             paradigm: {
185 |               enum: ["timestamp"],
186 |             },
187 |             timestampPrompt: {
188 |               type: "object",
189 |               title: "Instruction Configurations",
190 |               properties: {
191 |                 buttonInstructions: {
192 |                   type: "string",
193 |                   title: "Instruction text shown between timepoints",
194 |                   default: "Click the button at emotional events",
195 |                 },
196 |                 buttonText: {
197 |                   type: "string",
198 |                   title: "Text to show inside the button",
199 |                   default: "Click",
200 |                 }
201 |               },
202 |             },
203 |             testTrial: {
204 |               dependencies: {
205 |                 enabled: {
206 |                   oneOf: [
207 |                     {
208 |                       properties: {
209 |                         enabled: { enum: [false] },
210 |                       },
211 |                     },
212 |                     {
213 |                       properties: {
214 |                         enabled: { enum: [true] },
215 |                         video: {
216 |                           type: "object",
217 |                           title: "",
218 |                           properties: {
219 |                             id: {
220 |                               type: "string",
221 |                               title: "test trial video id",
222 |                             },
223 |                           },
224 |                         },
225 |                         minSegments: {
226 |                           type: "number",
227 |                           title:
228 |                             "Minimum number of segments needed to pass test trial",
229 |                         },
230 |                         maxTries: {
231 |                           type: "number",
232 |                           title: "Number of test trials allowed",
233 |                           default: 3,
234 |                         },
235 |                         successMessage: {
236 |                           type: "string",
237 |                           title: "message to show when test trial succeeds",
238 |                         },
239 |                         tryAgainMessage: {
240 |                           type: "string",
241 |                           title:
242 |                             "message to show when test trial is failed and they must try again",
243 |                         },
244 |                         failMessage: {
245 |                           type: "string",
246 |                           title:
247 |                             "message to show when test trial is failed too many times",
248 |                         },
249 |                       },
250 |                       required: [
251 |                         "video",
252 |                         "minSegments",
253 |                         "maxTries",
254 |                         "successMessage",
255 |                         "tryAgainMessage",
256 |                         "failMessage",
257 |                       ],
258 |                     },
259 |                   ],
260 |                 },
261 |               },
262 |             },
263 |           },
264 |         },
265 |         {
266 |           properties: {
267 |             paradigm: {
268 |               enum: ["self"],
269 |             },
270 |             questions: {
271 |               $ref: "#/definitions/questions",
272 |             },
273 |             shuffleQuestions: {
274 |               type: "boolean",
275 |               title: "Shuffle Order Questions Are Shown",
276 |               default: true,
277 |             },
278 |             instructions: {
279 |               type: "object",
280 |               title: "Instruction Configurations",
281 |               properties: {
282 |                 pauseInstructions: {
283 |                   type: "string",
284 |                   title: "Instruction text shown between timepoints",
285 |                   default: "Pause the video at emotional events",
286 |                 },
287 |               },
288 |             },
289 |             testTrial: {
290 |               dependencies: {
291 |                 enabled: {
292 |                   oneOf: [
293 |                     {
294 |                       properties: {
295 |                         enabled: { enum: [false] },
296 |                       },
297 |                     },
298 |                     {
299 |                       properties: {
300 |                         enabled: { enum: [true] },
301 |                         video: {
302 |                           type: "object",
303 |                           title: "",
304 |                           properties: {
305 |                             id: {
306 |                               type: "string",
307 |                               title: "test trial video id",
308 |                             },
309 |                           },
310 |                         },
311 |                         minSegments: {
312 |                           type: "number",
313 |                           title:
314 |                             "Minimum number of segments needed to pass test trial",
315 |                         },
316 |                         maxTries: {
317 |                           type: "number",
318 |                           title: "Number of test trials allowed",
319 |                           default: 3,
320 |                         },
321 |                         successMessage: {
322 |                           type: "string",
323 |                           title: "message to show when test trial succeeds",
324 |                         },
325 |                         tryAgainMessage: {
326 |                           type: "string",
327 |                           title:
328 |                             "message to show when test trial is failed and they must try again",
329 |                         },
330 |                         failMessage: {
331 |                           type: "string",
332 |                           title:
333 |                             "message to show when test trial is failed too many times",
334 |                         },
335 |                       },
336 |                       required: [
337 |                         "video",
338 |                         "minSegments",
339 |                         "maxTries",
340 |                         "successMessage",
341 |                         "tryAgainMessage",
342 |                         "failMessage",
343 |                       ],
344 |                     },
345 |                   ],
346 |                 },
347 |               },
348 |             },
349 |           },
350 |         },
351 |         {
352 |           properties: {
353 |             paradigm: {
354 |               enum: ["consensus"],
355 |             },
356 |             videos: {
357 |               type: "array",
358 |               items: {
359 |                 type: "object",
360 |                 properties: {
361 |                   timepoints: {
362 |                     type: "string",
363 |                     title: "timepoints (comma separated seconds)",
364 |                   },
365 |                 },
366 |               },
367 |             },
368 |             questions: {
369 |               $ref: "#/definitions/questions",
370 |             },
371 |             shuffleQuestions: {
372 |               type: "boolean",
373 |               title: "Shuffle Order Questions Are Shown",
374 |               default: true,
375 |             },
376 |             instructions: {
377 |               type: "object",
378 |               properties: {
379 |                 pauseInstructions: {
380 |                   type: "string",
381 |                   title: "Instruction text shown between timepoints",
382 |                   default:
383 |                     "The video will pause automatically and questions will appear here.",
384 |                 },
385 |               },
386 |             },
387 |             testTrial: {
388 |               dependencies: {
389 |                 enabled: {
390 |                   oneOf: [
391 |                     {
392 |                       properties: {
393 |                         enabled: { enum: [false] },
394 |                       },
395 |                     },
396 |                     {
397 |                       properties: {
398 |                         enabled: { enum: [true] },
399 |                         successMessage: {
400 |                           type: "string",
401 |                           title: "message to show when test trial succeeds",
402 |                         },
403 |                         video: {
404 |                           type: "object",
405 |                           properties: {
406 |                             id: {
407 |                               type: "string",
408 |                               title: "test trial video id",
409 |                             },
410 |                             timepoints: {
411 |                               type: "string",
412 |                               title: "timepoints (comma separated seconds)",
413 |                             },
414 |                           },
415 |                         },
416 |                       },
417 |                     },
418 |                   ],
419 |                 },
420 |               },
421 |             },
422 |           },
423 |         },
424 |       ],
425 |     },
426 |   },
427 | };
428 | const configSchema: JSONSchema6 = {
429 |   type: "object",
430 |   properties: {
431 |     trialBlocks: {
432 |       type: "array",
433 |       title: "Trial Blocks",
434 |       items: trialBlock,
435 |     },
436 |     shuffleTrialBlocks: {
437 |       type: "boolean",
438 |       title: "Shuffle Order Trial Blocks Are Shown",
439 |     },
440 |   },
441 |   definitions: {
442 |     questions: {
443 |       type: "array",
444 |       title: "Questions",
445 |       items: {
446 |         type: "object",
447 |         properties: {
448 |           type: {
449 |             type: "string",
450 |             title: "Type of Question",
451 |             anyOf: [
452 |               {
453 |                 type: "string",
454 |                 title: "Multiple Choice",
455 |                 enum: ["mc"],
456 |               },
457 |               {
458 |                 type: "string",
459 |                 title: "Rating Scale",
460 |                 enum: ["scale"],
461 |               },
462 |               {
463 |                 type: "string",
464 |                 title: "Affect Grid",
465 |                 enum: ["grid"],
466 |               },
467 |               {
468 |                 type: "string",
469 |                 title: "Open Response",
470 |                 enum: ["open"],
471 |               },
472 |             ],
473 |             default: "mc",
474 |           },
475 |           label: { type: "string", title: "Question Label" },
476 |         },
477 |         dependencies: {
478 |           type: {
479 |             oneOf: [
480 |               {
481 |                 properties: {
482 |                   type: {
483 |                     enum: ["mc"],
484 |                   },
485 |                   choices: {
486 |                     type: "array",
487 |                     title: "Answer Choices",
488 |                     items: {
489 |                       type: "string",
490 |                     },
491 |                   },
492 |                 },
493 |               },
494 |               {
495 |                 properties: {
496 |                   type: {
497 |                     enum: ["scale"],
498 |                   },
499 |                   choices: {
500 |                     type: "array",
501 |                     title: "Scale Label",
502 |                     items: {
503 |                       type: "string",
504 |                     },
505 |                   },
506 |                 },
507 |               },
508 |               {
509 |                 properties: { type: { enum: ["open"] } },
510 |               },
511 |               {
512 |                 properties: { type: { enum: ["grid"] } },
513 |               },
514 |             ],
515 |           },
516 |         },
517 |       },
518 |     },
519 |     axis: {
520 |       type: "object",
521 |       properties: {
522 |         high: { type: "string", title: "upper label" },
523 |         low: { type: "string", title: "lower label" },
524 |       },
525 |       required: ["high", "low"],
526 |     },
527 |   },
528 | };
529 | 
530 | export default configSchema;
531 |

--------------------------------------------------------------------------------
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253 |     (including a physical distribution medium), accompanied by the
254 |     Corresponding Source fixed on a durable physical medium
255 |     customarily used for software interchange.
256 | 
257 |     b) Convey the object code in, or embodied in, a physical product
258 |     (including a physical distribution medium), accompanied by a
259 |     written offer, valid for at least three years and valid for as
260 |     long as you offer spare parts or customer support for that product
261 |     model, to give anyone who possesses the object code either (1) a
262 |     copy of the Corresponding Source for all the software in the
263 |     product that is covered by this License, on a durable physical
264 |     medium customarily used for software interchange, for a price no
265 |     more than your reasonable cost of physically performing this
266 |     conveying of source, or (2) access to copy the
267 |     Corresponding Source from a network server at no charge.
268 | 
269 |     c) Convey individual copies of the object code with a copy of the
270 |     written offer to provide the Corresponding Source.  This
271 |     alternative is allowed only occasionally and noncommercially, and
272 |     only if you received the object code with such an offer, in accord
273 |     with subsection 6b.
274 | 
275 |     d) Convey the object code by offering access from a designated
276 |     place (gratis or for a charge), and offer equivalent access to the
277 |     Corresponding Source in the same way through the same place at no
278 |     further charge.  You need not require recipients to copy the
279 |     Corresponding Source along with the object code.  If the place to
280 |     copy the object code is a network server, the Corresponding Source
281 |     may be on a different server (operated by you or a third party)
282 |     that supports equivalent copying facilities, provided you maintain
283 |     clear directions next to the object code saying where to find the
284 |     Corresponding Source.  Regardless of what server hosts the
285 |     Corresponding Source, you remain obligated to ensure that it is
286 |     available for as long as needed to satisfy these requirements.
287 | 
288 |     e) Convey the object code using peer-to-peer transmission, provided
289 |     you inform other peers where the object code and Corresponding
290 |     Source of the work are being offered to the general public at no
291 |     charge under subsection 6d.
292 | 
293 |   A separable portion of the object code, whose source code is excluded
294 | from the Corresponding Source as a System Library, need not be
295 | included in conveying the object code work.
296 | 
297 |   A "User Product" is either (1) a "consumer product", which means any
298 | tangible personal property which is normally used for personal, family,
299 | or household purposes, or (2) anything designed or sold for incorporation
300 | into a dwelling.  In determining whether a product is a consumer product,
301 | doubtful cases shall be resolved in favor of coverage.  For a particular
302 | product received by a particular user, "normally used" refers to a
303 | typical or common use of that class of product, regardless of the status
304 | of the particular user or of the way in which the particular user
305 | actually uses, or expects or is expected to use, the product.  A product
306 | is a consumer product regardless of whether the product has substantial
307 | commercial, industrial or non-consumer uses, unless such uses represent
308 | the only significant mode of use of the product.
309 | 
310 |   "Installation Information" for a User Product means any methods,
311 | procedures, authorization keys, or other information required to install
312 | and execute modified versions of a covered work in that User Product from
313 | a modified version of its Corresponding Source.  The information must
314 | suffice to ensure that the continued functioning of the modified object
315 | code is in no case prevented or interfered with solely because
316 | modification has been made.
317 | 
318 |   If you convey an object code work under this section in, or with, or
319 | specifically for use in, a User Product, and the conveying occurs as
320 | part of a transaction in which the right of possession and use of the
321 | User Product is transferred to the recipient in perpetuity or for a
322 | fixed term (regardless of how the transaction is characterized), the
323 | Corresponding Source conveyed under this section must be accompanied
324 | by the Installation Information.  But this requirement does not apply
325 | if neither you nor any third party retains the ability to install
326 | modified object code on the User Product (for example, the work has
327 | been installed in ROM).
328 | 
329 |   The requirement to provide Installation Information does not include a
330 | requirement to continue to provide support service, warranty, or updates
331 | for a work that has been modified or installed by the recipient, or for
332 | the User Product in which it has been modified or installed.  Access to a
333 | network may be denied when the modification itself materially and
334 | adversely affects the operation of the network or violates the rules and
335 | protocols for communication across the network.
336 | 
337 |   Corresponding Source conveyed, and Installation Information provided,
338 | in accord with this section must be in a format that is publicly
339 | documented (and with an implementation available to the public in
340 | source code form), and must require no special password or key for
341 | unpacking, reading or copying.
342 | 
343 |   7. Additional Terms.
344 | 
345 |   "Additional permissions" are terms that supplement the terms of this
346 | License by making exceptions from one or more of its conditions.
347 | Additional permissions that are applicable to the entire Program shall
348 | be treated as though they were included in this License, to the extent
349 | that they are valid under applicable law.  If additional permissions
350 | apply only to part of the Program, that part may be used separately
351 | under those permissions, but the entire Program remains governed by
352 | this License without regard to the additional permissions.
353 | 
354 |   When you convey a copy of a covered work, you may at your option
355 | remove any additional permissions from that copy, or from any part of
356 | it.  (Additional permissions may be written to require their own
357 | removal in certain cases when you modify the work.)  You may place
358 | additional permissions on material, added by you to a covered work,
359 | for which you have or can give appropriate copyright permission.
360 | 
361 |   Notwithstanding any other provision of this License, for material you
362 | add to a covered work, you may (if authorized by the copyright holders of
363 | that material) supplement the terms of this License with terms:
364 | 
365 |     a) Disclaiming warranty or limiting liability differently from the
366 |     terms of sections 15 and 16 of this License; or
367 | 
368 |     b) Requiring preservation of specified reasonable legal notices or
369 |     author attributions in that material or in the Appropriate Legal
370 |     Notices displayed by works containing it; or
371 | 
372 |     c) Prohibiting misrepresentation of the origin of that material, or
373 |     requiring that modified versions of such material be marked in
374 |     reasonable ways as different from the original version; or
375 | 
376 |     d) Limiting the use for publicity purposes of names of licensors or
377 |     authors of the material; or
378 | 
379 |     e) Declining to grant rights under trademark law for use of some
380 |     trade names, trademarks, or service marks; or
381 | 
382 |     f) Requiring indemnification of licensors and authors of that
383 |     material by anyone who conveys the material (or modified versions of
384 |     it) with contractual assumptions of liability to the recipient, for
385 |     any liability that these contractual assumptions directly impose on
386 |     those licensors and authors.
387 | 
388 |   All other non-permissive additional terms are considered "further
389 | restrictions" within the meaning of section 10.  If the Program as you
390 | received it, or any part of it, contains a notice stating that it is
391 | governed by this License along with a term that is a further
392 | restriction, you may remove that term.  If a license document contains
393 | a further restriction but permits relicensing or conveying under this
394 | License, you may add to a covered work material governed by the terms
395 | of that license document, provided that the further restriction does
396 | not survive such relicensing or conveying.
397 | 
398 |   If you add terms to a covered work in accord with this section, you
399 | must place, in the relevant source files, a statement of the
400 | additional terms that apply to those files, or a notice indicating
401 | where to find the applicable terms.
402 | 
403 |   Additional terms, permissive or non-permissive, may be stated in the
404 | form of a separately written license, or stated as exceptions;
405 | the above requirements apply either way.
406 | 
407 |   8. Termination.
408 | 
409 |   You may not propagate or modify a covered work except as expressly
410 | provided under this License.  Any attempt otherwise to propagate or
411 | modify it is void, and will automatically terminate your rights under
412 | this License (including any patent licenses granted under the third
413 | paragraph of section 11).
414 | 
415 |   However, if you cease all violation of this License, then your
416 | license from a particular copyright holder is reinstated (a)
417 | provisionally, unless and until the copyright holder explicitly and
418 | finally terminates your license, and (b) permanently, if the copyright
419 | holder fails to notify you of the violation by some reasonable means
420 | prior to 60 days after the cessation.
421 | 
422 |   Moreover, your license from a particular copyright holder is
423 | reinstated permanently if the copyright holder notifies you of the
424 | violation by some reasonable means, this is the first time you have
425 | received notice of violation of this License (for any work) from that
426 | copyright holder, and you cure the violation prior to 30 days after
427 | your receipt of the notice.
428 | 
429 |   Termination of your rights under this section does not terminate the
430 | licenses of parties who have received copies or rights from you under
431 | this License.  If your rights have been terminated and not permanently
432 | reinstated, you do not qualify to receive new licenses for the same
433 | material under section 10.
434 | 
435 |   9. Acceptance Not Required for Having Copies.
436 | 
437 |   You are not required to accept this License in order to receive or
438 | run a copy of the Program.  Ancillary propagation of a covered work
439 | occurring solely as a consequence of using peer-to-peer transmission
440 | to receive a copy likewise does not require acceptance.  However,
441 | nothing other than this License grants you permission to propagate or
442 | modify any covered work.  These actions infringe copyright if you do
443 | not accept this License.  Therefore, by modifying or propagating a
444 | covered work, you indicate your acceptance of this License to do so.
445 | 
446 |   10. Automatic Licensing of Downstream Recipients.
447 | 
448 |   Each time you convey a covered work, the recipient automatically
449 | receives a license from the original licensors, to run, modify and
450 | propagate that work, subject to this License.  You are not responsible
451 | for enforcing compliance by third parties with this License.
452 | 
453 |   An "entity transaction" is a transaction transferring control of an
454 | organization, or substantially all assets of one, or subdividing an
455 | organization, or merging organizations.  If propagation of a covered
456 | work results from an entity transaction, each party to that
457 | transaction who receives a copy of the work also receives whatever
458 | licenses to the work the party's predecessor in interest had or could
459 | give under the previous paragraph, plus a right to possession of the
460 | Corresponding Source of the work from the predecessor in interest, if
461 | the predecessor has it or can get it with reasonable efforts.
462 | 
463 |   You may not impose any further restrictions on the exercise of the
464 | rights granted or affirmed under this License.  For example, you may
465 | not impose a license fee, royalty, or other charge for exercise of
466 | rights granted under this License, and you may not initiate litigation
467 | (including a cross-claim or counterclaim in a lawsuit) alleging that
468 | any patent claim is infringed by making, using, selling, offering for
469 | sale, or importing the Program or any portion of it.
470 | 
471 |   11. Patents.
472 | 
473 |   A "contributor" is a copyright holder who authorizes use under this
474 | License of the Program or a work on which the Program is based.  The
475 | work thus licensed is called the contributor's "contributor version".
476 | 
477 |   A contributor's "essential patent claims" are all patent claims
478 | owned or controlled by the contributor, whether already acquired or
479 | hereafter acquired, that would be infringed by some manner, permitted
480 | by this License, of making, using, or selling its contributor version,
481 | but do not include claims that would be infringed only as a
482 | consequence of further modification of the contributor version.  For
483 | purposes of this definition, "control" includes the right to grant
484 | patent sublicenses in a manner consistent with the requirements of
485 | this License.
486 | 
487 |   Each contributor grants you a non-exclusive, worldwide, royalty-free
488 | patent license under the contributor's essential patent claims, to
489 | make, use, sell, offer for sale, import and otherwise run, modify and
490 | propagate the contents of its contributor version.
491 | 
492 |   In the following three paragraphs, a "patent license" is any express
493 | agreement or commitment, however denominated, not to enforce a patent
494 | (such as an express permission to practice a patent or covenant not to
495 | sue for patent infringement).  To "grant" such a patent license to a
496 | party means to make such an agreement or commitment not to enforce a
497 | patent against the party.
498 | 
499 |   If you convey a covered work, knowingly relying on a patent license,
500 | and the Corresponding Source of the work is not available for anyone
501 | to copy, free of charge and under the terms of this License, through a
502 | publicly available network server or other readily accessible means,
503 | then you must either (1) cause the Corresponding Source to be so
504 | available, or (2) arrange to deprive yourself of the benefit of the
505 | patent license for this particular work, or (3) arrange, in a manner
506 | consistent with the requirements of this License, to extend the patent
507 | license to downstream recipients.  "Knowingly relying" means you have
508 | actual knowledge that, but for the patent license, your conveying the
509 | covered work in a country, or your recipient's use of the covered work
510 | in a country, would infringe one or more identifiable patents in that
511 | country that you have reason to believe are valid.
512 | 
513 |   If, pursuant to or in connection with a single transaction or
514 | arrangement, you convey, or propagate by procuring conveyance of, a
515 | covered work, and grant a patent license to some of the parties
516 | receiving the covered work authorizing them to use, propagate, modify
517 | or convey a specific copy of the covered work, then the patent license
518 | you grant is automatically extended to all recipients of the covered
519 | work and works based on it.
520 | 
521 |   A patent license is "discriminatory" if it does not include within
522 | the scope of its coverage, prohibits the exercise of, or is
523 | conditioned on the non-exercise of one or more of the rights that are
524 | specifically granted under this License.  You may not convey a covered
525 | work if you are a party to an arrangement with a third party that is
526 | in the business of distributing software, under which you make payment
527 | to the third party based on the extent of your activity of conveying
528 | the work, and under which the third party grants, to any of the
529 | parties who would receive the covered work from you, a discriminatory
530 | patent license (a) in connection with copies of the covered work
531 | conveyed by you (or copies made from those copies), or (b) primarily
532 | for and in connection with specific products or compilations that
533 | contain the covered work, unless you entered into that arrangement,
534 | or that patent license was granted, prior to 28 March 2007.
535 | 
536 |   Nothing in this License shall be construed as excluding or limiting
537 | any implied license or other defenses to infringement that may
538 | otherwise be available to you under applicable patent law.
539 | 
540 |   12. No Surrender of Others' Freedom.
541 | 
542 |   If conditions are imposed on you (whether by court order, agreement or
543 | otherwise) that contradict the conditions of this License, they do not
544 | excuse you from the conditions of this License.  If you cannot convey a
545 | covered work so as to satisfy simultaneously your obligations under this
546 | License and any other pertinent obligations, then as a consequence you may
547 | not convey it at all.  For example, if you agree to terms that obligate you
548 | to collect a royalty for further conveying from those to whom you convey
549 | the Program, the only way you could satisfy both those terms and this
550 | License would be to refrain entirely from conveying the Program.
551 | 
552 |   13. Use with the GNU Affero General Public License.
553 | 
554 |   Notwithstanding any other provision of this License, you have
555 | permission to link or combine any covered work with a work licensed
556 | under version 3 of the GNU Affero General Public License into a single
557 | combined work, and to convey the resulting work.  The terms of this
558 | License will continue to apply to the part which is the covered work,
559 | but the special requirements of the GNU Affero General Public License,
560 | section 13, concerning interaction through a network will apply to the
561 | combination as such.
562 | 
563 |   14. Revised Versions of this License.
564 | 
565 |   The Free Software Foundation may publish revised and/or new versions of
566 | the GNU General Public License from time to time.  Such new versions will
567 | be similar in spirit to the present version, but may differ in detail to
568 | address new problems or concerns.
569 | 
570 |   Each version is given a distinguishing version number.  If the
571 | Program specifies that a certain numbered version of the GNU General
572 | Public License "or any later version" applies to it, you have the
573 | option of following the terms and conditions either of that numbered
574 | version or of any later version published by the Free Software
575 | Foundation.  If the Program does not specify a version number of the
576 | GNU General Public License, you may choose any version ever published
577 | by the Free Software Foundation.
578 | 
579 |   If the Program specifies that a proxy can decide which future
580 | versions of the GNU General Public License can be used, that proxy's
581 | public statement of acceptance of a version permanently authorizes you
582 | to choose that version for the Program.
583 | 
584 |   Later license versions may give you additional or different
585 | permissions.  However, no additional obligations are imposed on any
586 | author or copyright holder as a result of your choosing to follow a
587 | later version.
588 | 
589 |   15. Disclaimer of Warranty.
590 | 
591 |   THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
592 | APPLICABLE LAW.  EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
593 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
594 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
595 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
596 | PURPOSE.  THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
597 | IS WITH YOU.  SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
598 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
599 | 
600 |   16. Limitation of Liability.
601 | 
602 |   IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
603 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
604 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
605 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
606 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
607 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
608 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
609 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
610 | SUCH DAMAGES.
611 | 
612 |   17. Interpretation of Sections 15 and 16.
613 | 
614 |   If the disclaimer of warranty and limitation of liability provided
615 | above cannot be given local legal effect according to their terms,
616 | reviewing courts shall apply local law that most closely approximates
617 | an absolute waiver of all civil liability in connection with the
618 | Program, unless a warranty or assumption of liability accompanies a
619 | copy of the Program in return for a fee.
620 | 
621 |                      END OF TERMS AND CONDITIONS
622 | 
623 |             How to Apply These Terms to Your New Programs
624 | 
625 |   If you develop a new program, and you want it to be of the greatest
626 | possible use to the public, the best way to achieve this is to make it
627 | free software which everyone can redistribute and change under these terms.
628 | 
629 |   To do so, attach the following notices to the program.  It is safest
630 | to attach them to the start of each source file to most effectively
631 | state the exclusion of warranty; and each file should have at least
632 | the "copyright" line and a pointer to where the full notice is found.
633 | 
634 |     <one line to give the program's name and a brief idea of what it does.>
635 |     Copyright (C) <year>  <name of author>
636 | 
637 |     This program is free software: you can redistribute it and/or modify
638 |     it under the terms of the GNU General Public License as published by
639 |     the Free Software Foundation, either version 3 of the License, or
640 |     (at your option) any later version.
641 | 
642 |     This program is distributed in the hope that it will be useful,
643 |     but WITHOUT ANY WARRANTY; without even the implied warranty of
644 |     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
645 |     GNU General Public License for more details.
646 | 
647 |     You should have received a copy of the GNU General Public License
648 |     along with this program.  If not, see <https://www.gnu.org/licenses/>.
649 | 
650 | Also add information on how to contact you by electronic and paper mail.
651 | 
652 |   If the program does terminal interaction, make it output a short
653 | notice like this when it starts in an interactive mode:
654 | 
655 |     <program>  Copyright (C) <year>  <name of author>
656 |     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
657 |     This is free software, and you are welcome to redistribute it
658 |     under certain conditions; type `show c' for details.
659 | 
660 | The hypothetical commands `show w' and `show c' should show the appropriate
661 | parts of the General Public License.  Of course, your program's commands
662 | might be different; for a GUI interface, you would use an "about box".
663 | 
664 |   You should also get your employer (if you work as a programmer) or school,
665 | if any, to sign a "copyright disclaimer" for the program, if necessary.
666 | For more information on this, and how to apply and follow the GNU GPL, see
667 | <https://www.gnu.org/licenses/>.
668 | 
669 |   The GNU General Public License does not permit incorporating your program
670 | into proprietary programs.  If your program is a subroutine library, you
671 | may consider it more useful to permit linking proprietary applications with
672 | the library.  If this is what you want to do, use the GNU Lesser General
673 | Public License instead of this License.  But first, please read
674 | <https://www.gnu.org/licenses/why-not-lgpl.html>.
675 |

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