├── src
    ├── vite-env.d.ts
    ├── App.css
    ├── utils
    │   └── index.ts
    ├── hooks
    │   └── useRenderCount.tsx
    ├── pages
    │   ├── common
    │   │   └── FormLoader.tsx
    │   └── FoodDelivery
    │   │   ├── components
    │   │       ├── DeliveryAddressForm.tsx
    │   │       ├── CheckoutForm.tsx
    │   │       ├── MasterFoodDeliveryForm.tsx
    │   │       └── OrderedFoodItems.tsx
    │   │   └── FoodDeliveryForm.tsx
    ├── main.tsx
    ├── App.tsx
    ├── controls
    │   ├── TextField.tsx
    │   ├── Select.tsx
    │   └── SubmitButton.tsx
    ├── types
    │   └── index.ts
    ├── db
    │   └── index.ts
    ├── index.css
    ├── TypicalForm.tsx
    └── assets
    │   └── react.svg
├── vite.config.ts
├── tsconfig.node.json
├── .gitignore
├── README.md
├── .eslintrc.cjs
├── tsconfig.json
├── index.html
├── package.json
└── public
    └── vite.svg


/src/vite-env.d.ts:
--------------------------------------------------------------------------------
1 | /// <reference types="vite/client" />
2 | 


--------------------------------------------------------------------------------
/src/App.css:
--------------------------------------------------------------------------------
1 | #root {
2 |   max-width: 1280px;
3 |   margin: 0 auto;
4 |   padding: 2rem;
5 |   text-align: center;
6 | }
7 | 


--------------------------------------------------------------------------------
/src/utils/index.ts:
--------------------------------------------------------------------------------
1 | export const roundTo2DecimalPoint = (value: number) =>
2 |   Math.round((value + Number.EPSILON) * 100) / 100


--------------------------------------------------------------------------------
/src/hooks/useRenderCount.tsx:
--------------------------------------------------------------------------------
1 | export const useRenderCount = () => {
2 |   let count = 0
3 | 
4 |   return () => {
5 |     count++
6 |     return <div>Render count : {count/2}</div>
7 |   }
8 | }
9 | 


--------------------------------------------------------------------------------
/vite.config.ts:
--------------------------------------------------------------------------------
1 | import { defineConfig } from 'vite'
2 | import react from '@vitejs/plugin-react'
3 | 
4 | // https://vitejs.dev/config/
5 | export default defineConfig({
6 |   plugins: [react()],
7 | })
8 | 


--------------------------------------------------------------------------------
/tsconfig.node.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "composite": true,
 4 |     "skipLibCheck": true,
 5 |     "module": "ESNext",
 6 |     "moduleResolution": "bundler",
 7 |     "allowSyntheticDefaultImports": true
 8 |   },
 9 |   "include": ["vite.config.ts"]
10 | }
11 | 


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/src/pages/common/FormLoader.tsx:
--------------------------------------------------------------------------------
1 | import { useFormState } from "react-hook-form"
2 | 
3 | export default function FormLoader(props:any) {
4 |   const { control } = props
5 |   const { isLoading } = useFormState({ control })
6 |   return isLoading == false || <div className="loader"></div>
7 | }
8 | 


--------------------------------------------------------------------------------
/src/main.tsx:
--------------------------------------------------------------------------------
 1 | import React from 'react'
 2 | import ReactDOM from 'react-dom/client'
 3 | import App from './App.tsx'
 4 | import './index.css'
 5 | 
 6 | ReactDOM.createRoot(document.getElementById('root')!).render(
 7 |   <React.StrictMode>
 8 |     <App />
 9 |   </React.StrictMode>,
10 | )
11 | 


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/.gitignore:
--------------------------------------------------------------------------------
 1 | # Logs
 2 | logs
 3 | *.log
 4 | npm-debug.log*
 5 | yarn-debug.log*
 6 | yarn-error.log*
 7 | pnpm-debug.log*
 8 | lerna-debug.log*
 9 | 
10 | node_modules
11 | dist
12 | dist-ssr
13 | *.local
14 | 
15 | # Editor directories and files
16 | .vscode/*
17 | !.vscode/extensions.json
18 | .idea
19 | .DS_Store
20 | *.suo
21 | *.ntvs*
22 | *.njsproj
23 | *.sln
24 | *.sw?
25 | 


--------------------------------------------------------------------------------
/src/App.tsx:
--------------------------------------------------------------------------------
 1 | import "./App.css"
 2 | import { FoodDeliveryForm } from "./pages/FoodDelivery/FoodDeliveryForm"
 3 | import { TypicalForm } from "./TypicalForm"
 4 | 
 5 | function App() {
 6 |   return (
 7 |     <>
 8 |       <div className="container">
 9 |         <div className="mx-5">
10 |           <FoodDeliveryForm />
11 |         </div>
12 |       </div>
13 |     </>
14 |   )
15 | }
16 | 
17 | export default App
18 | 


--------------------------------------------------------------------------------
/README.md:
--------------------------------------------------------------------------------
1 | # First Demo Project with Food Delivery App.
2 | ### This a Demo Project Created for the [Udemy Course - React Hook Form](https://bit.ly/3WQCZSK).
3 | ![Form Created with React Hook Form](https://github.com/CodAffection/Premium-React-Hook-Form-Course-with-Food-Delivery-App/assets/32505654/255b4daf-7254-49ce-b6f5-3b2f6fab8562)
4 | 
5 | 
6 | ![React Hook Form](https://github.com/CodAffection/Premium-React-Hook-Form-Course-with-Food-Delivery-App/assets/32505654/11693887-e57e-4668-9d3c-cad3442286e6)
7 | 
8 | 
9 | 


--------------------------------------------------------------------------------
/.eslintrc.cjs:
--------------------------------------------------------------------------------
 1 | module.exports = {
 2 |   root: true,
 3 |   env: { browser: true, es2020: true },
 4 |   extends: [
 5 |     'eslint:recommended',
 6 |     'plugin:@typescript-eslint/recommended',
 7 |     'plugin:react-hooks/recommended',
 8 |   ],
 9 |   ignorePatterns: ['dist', '.eslintrc.cjs'],
10 |   parser: '@typescript-eslint/parser',
11 |   plugins: ['react-refresh'],
12 |   rules: {
13 |     'react-refresh/only-export-components': [
14 |       'warn',
15 |       { allowConstantExport: true },
16 |     ],
17 |   },
18 | }
19 | 


--------------------------------------------------------------------------------
/tsconfig.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "compilerOptions": {
 3 |     "target": "ES2020",
 4 |     "useDefineForClassFields": true,
 5 |     "lib": ["ES2020", "DOM", "DOM.Iterable"],
 6 |     "module": "ESNext",
 7 |     "skipLibCheck": true,
 8 | 
 9 |     /* Bundler mode */
10 |     "moduleResolution": "bundler",
11 |     "allowImportingTsExtensions": true,
12 |     "resolveJsonModule": true,
13 |     "isolatedModules": true,
14 |     "noEmit": true,
15 |     "jsx": "react-jsx",
16 | 
17 |     /* Linting */
18 |     "strict": true,
19 |     "noUnusedLocals": true,
20 |     "noUnusedParameters": true,
21 |     "noFallthroughCasesInSwitch": true
22 |   },
23 |   "include": ["src"],
24 |   "references": [{ "path": "./tsconfig.node.json" }]
25 | }
26 | 


--------------------------------------------------------------------------------
/src/controls/TextField.tsx:
--------------------------------------------------------------------------------
 1 | import { forwardRef, ForwardedRef } from "react"
 2 | import { FieldError } from "react-hook-form"
 3 | 
 4 | type TextFieldProps = React.InputHTMLAttributes<HTMLInputElement> & {
 5 |   label?: string
 6 |   error?: FieldError | undefined
 7 | }
 8 | 
 9 | export const TextField = forwardRef(
10 |   (props: TextFieldProps, ref: ForwardedRef<HTMLInputElement>) => {
11 |     const { type = "text", className = "", label, error, ...other } = props
12 | 
13 |     return (
14 |       <div className={label?"form-floating":""}>
15 |         <input
16 |           type={type}
17 |           className={`form-control ${className}`}
18 |           placeholder={label}
19 |           ref={ref}
20 |           {...other}
21 |         />
22 |         {label && <label>{label}</label>}
23 |         {error && <div className="error-feedback">{error.message}</div>}
24 |       </div>
25 |     )
26 |   }
27 | )
28 | 


--------------------------------------------------------------------------------
/index.html:
--------------------------------------------------------------------------------
 1 | <!doctype html>
 2 | <html lang="en" data-bs-theme="dark">
 3 | 
 4 | <head>
 5 |   <meta charset="UTF-8" />
 6 |   <link rel="icon" type="image/svg+xml" href="/vite.svg" />
 7 |   <meta name="viewport" content="width=device-width, initial-scale=1.0" />
 8 |   <link rel="preconnect" href="https://fonts.googleapis.com">
 9 |   <link rel="preconnect" href="https://fonts.gstatic.com" crossorigin>
10 |   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;700&display=swap" rel="stylesheet">
11 |   <link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.1/dist/css/bootstrap.min.css" rel="stylesheet"
12 |     integrity="sha384-4bw+/aepP/YC94hEpVNVgiZdgIC5+VKNBQNGCHeKRQN+PtmoHDEXuppvnDJzQIu9" crossorigin="anonymous">
13 |   <title>Vite + React + TS</title>
14 | </head>
15 | 
16 | <body>
17 |   <div id="root"></div>
18 |   <script type="module" src="/src/main.tsx"></script>
19 | </body>
20 | 
21 | </html>


--------------------------------------------------------------------------------
/package.json:
--------------------------------------------------------------------------------
 1 | {
 2 |   "name": "food-delivery-form",
 3 |   "private": true,
 4 |   "version": "0.0.0",
 5 |   "type": "module",
 6 |   "scripts": {
 7 |     "dev": "vite",
 8 |     "build": "tsc && vite build",
 9 |     "lint": "eslint . --ext ts,tsx --report-unused-disable-directives --max-warnings 0",
10 |     "preview": "vite preview"
11 |   },
12 |   "dependencies": {
13 |     "react": "^18.2.0",
14 |     "react-dom": "^18.2.0",
15 |     "react-hook-form": "^7.46.1"
16 |   },
17 |   "devDependencies": {
18 |     "@types/react": "^18.2.15",
19 |     "@types/react-dom": "^18.2.7",
20 |     "@typescript-eslint/eslint-plugin": "^6.0.0",
21 |     "@typescript-eslint/parser": "^6.0.0",
22 |     "@vitejs/plugin-react": "^4.0.3",
23 |     "eslint": "^8.45.0",
24 |     "eslint-plugin-react-hooks": "^4.6.0",
25 |     "eslint-plugin-react-refresh": "^0.4.3",
26 |     "typescript": "^5.0.2",
27 |     "vite": "^4.4.5"
28 |   }
29 | }
30 | 


--------------------------------------------------------------------------------
/src/types/index.ts:
--------------------------------------------------------------------------------
 1 | type CheckoutFormType = {
 2 |   paymentMethod: string
 3 |   deliveryIn: number
 4 | }
 5 | 
 6 | type DeliveryAddressFormType = {
 7 |   streetAddress: string
 8 |   landmark: string
 9 |   city: string
10 |   state: string
11 | }
12 | 
13 | 
14 | type FoodDeliveryFormType = {
15 |   address: DeliveryAddressFormType
16 |   foodItems: OrderedFoodItemType[]
17 | } & MasterFoodDeliveryFormType & CheckoutFormType
18 | 
19 | type FoodType = {
20 |   foodId: number,
21 |   name: string,
22 |   price: number
23 | }
24 | 
25 | type MasterFoodDeliveryFormType = {
26 |   orderId: number
27 |   orderNo: number
28 |   customerName: string
29 |   mobile: string
30 |   email: string
31 |   gTotal: number
32 |   placedOn: Date
33 | }
34 | 
35 | 
36 | type OrderedFoodItemType = {
37 |   foodId: number,
38 |   price: number,
39 |   quantity: number,
40 |   totalPrice: number,
41 | }
42 | 
43 | type SelectOptionType = string |
44 | { value: string, text: string } |
45 | { value: number, text: string }


--------------------------------------------------------------------------------
/src/db/index.ts:
--------------------------------------------------------------------------------
 1 | export const getFoodItems = () => {
 2 |   return [
 3 |     { foodId: 1, name: "Chicken Tenders", price: 3.5 },
 4 |     { foodId: 2, name: "GC. Sandwich", price: 3.99 },
 5 |     { foodId: 3, name: "Soup", price: 2.5 },
 6 |     { foodId: 4, name: "Onion Rings", price: 2.99 },
 7 |     { foodId: 5, name: "Fries", price: 1.99 },
 8 |     { foodId: 6, name: "SP. Fries", price: 2.49 },
 9 |     { foodId: 7, name: "Sweet Tea", price: 1.79 },
10 |     { foodId: 8, name: "Botttle Water", price: 1 },
11 |     { foodId: 9, name: "Canned Drinks", price: 1 },
12 |   ] as FoodType[]
13 | }
14 | 
15 | const ORDER_KEY = 'order'
16 | export const createOrder = (order: FoodDeliveryFormType) => {
17 |   localStorage.setItem(ORDER_KEY, JSON.stringify(order))
18 | }
19 | 
20 | export const fetchLastOrder = async () => {
21 |   await new Promise((resolve) => setTimeout(resolve, 2000))
22 |   const order = localStorage.getItem(ORDER_KEY)
23 |   if (order == null) return null
24 |   else return JSON.parse(order)
25 | }


--------------------------------------------------------------------------------
/src/controls/Select.tsx:
--------------------------------------------------------------------------------
 1 | import { forwardRef, ForwardedRef } from "react"
 2 | import { FieldError } from "react-hook-form"
 3 | 
 4 | type SelectFieldProps = React.SelectHTMLAttributes<HTMLSelectElement> & {
 5 |   label?: string
 6 |   error?: FieldError | undefined
 7 |   options: SelectOptionType[]
 8 | }
 9 | 
10 | export const Select = forwardRef(
11 |   (props: SelectFieldProps, ref: ForwardedRef<HTMLSelectElement>) => {
12 |     const { className = "", label, options, error, ...other } = props
13 | 
14 |     return (
15 |       <div className={label?"form-floating":""}>
16 |         <select className={`form-select ${className}`} ref={ref} {...other}>
17 |           {options.map((x, indx) => (
18 |             <option key={indx} value={typeof x == "string" ? x : x.value}>
19 |               {typeof x == "string" ? x : x.text}
20 |             </option>
21 |           ))}
22 |         </select>
23 |         {label && <label>{label}</label>}
24 |         {error && <div className="error-feedback">{error.message}</div>}
25 |       </div>
26 |     )
27 |   }
28 | )
29 | 


--------------------------------------------------------------------------------
/src/controls/SubmitButton.tsx:
--------------------------------------------------------------------------------
 1 | import { Control, useFormState } from "react-hook-form"
 2 | import { useRenderCount } from "../hooks/useRenderCount"
 3 | 
 4 | type SubmitButtonProps = React.ButtonHTMLAttributes<HTMLButtonElement> & {
 5 |   control?: Control<any, any>
 6 | }
 7 | 
 8 | 
 9 | export default function SubmitButton(props: SubmitButtonProps) {
10 |   const {
11 |     className = "btn-light",
12 |     value,
13 |     control = undefined,
14 |     ...other
15 |   } = props
16 | 
17 |   let isSubmitting = undefined
18 |   if (control) ({ isSubmitting } = useFormState({ control }))
19 | 
20 |   return (
21 |     <>
22 |       <button
23 |         type="submit"
24 |         className={`btn ${className}`}
25 |         disabled={isSubmitting == undefined ? false : isSubmitting}
26 |         {...other}
27 |       >
28 |         {isSubmitting === undefined || isSubmitting === false ? (
29 |           value
30 |         ) : (
31 |           <>
32 |             <span
33 |               className="spinner-border spinner-border-sm"
34 |               aria-hidden="true"
35 |             ></span>
36 |             <span role="status" className="ms-1">
37 |               {value}
38 |             </span>
39 |           </>
40 |         )}
41 |       </button>
42 |     </>
43 |   )
44 | }
45 | 


--------------------------------------------------------------------------------
/src/index.css:
--------------------------------------------------------------------------------
 1 | :root {
 2 |   font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
 3 |   line-height: 1.5;
 4 |   font-weight: 400;
 5 | 
 6 |   font-synthesis: none;
 7 |   text-rendering: optimizeLegibility;
 8 |   -webkit-font-smoothing: antialiased;
 9 |   -moz-osx-font-smoothing: grayscale;
10 |   -webkit-text-size-adjust: 100%;
11 | }
12 | 
13 | body {
14 |   font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif !important;
15 |   margin: 0;
16 |   display: flex;
17 |   place-items: center;
18 |   min-width: 320px;
19 |   min-height: 100vh;
20 | }
21 | 
22 | .error-feedback {
23 |   width: 100%;
24 |   margin-top: 0.25rem;
25 |   font-size: 0.875em;
26 |   color: #ea868f;
27 | }
28 | 
29 | #foodItems {
30 |   max-width: 600px;
31 |   min-width: 600px;
32 | }
33 | 
34 | #foodItems thead tr th:not(:first-child):not(:last-child) {
35 |   width: 15%;
36 | }
37 | 
38 | /* loading spinner */
39 | .loader {
40 |   position: absolute;
41 |   left: 48%;
42 |   top: 50%;
43 |   z-index: 2147483647;
44 |   width: 60px;
45 |   height: 60px;
46 |   border-radius: 75%;
47 |   display: inline-block;
48 |   border-top: 6px solid #fff;
49 |   border-right: 6px solid transparent;
50 |   box-sizing: border-box;
51 |   animation: rotation 1s linear infinite;
52 | }
53 | 
54 | @keyframes rotation {
55 |   0% {
56 |     transform: rotate(0deg);
57 |   }
58 |   100% {
59 |     transform: rotate(360deg);
60 |   }
61 | }
62 | 


--------------------------------------------------------------------------------
/public/vite.svg:
--------------------------------------------------------------------------------
1 | <svg xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" aria-hidden="true" role="img" class="iconify iconify--logos" width="31.88" height="32" preserveAspectRatio="xMidYMid meet" viewBox="0 0 256 257"><defs><linearGradient id="IconifyId1813088fe1fbc01fb466" x1="-.828%" x2="57.636%" y1="7.652%" y2="78.411%"><stop offset="0%" stop-color="#41D1FF"></stop><stop offset="100%" stop-color="#BD34FE"></stop></linearGradient><linearGradient id="IconifyId1813088fe1fbc01fb467" x1="43.376%" x2="50.316%" y1="2.242%" y2="89.03%"><stop offset="0%" stop-color="#FFEA83"></stop><stop offset="8.333%" stop-color="#FFDD35"></stop><stop offset="100%" stop-color="#FFA800"></stop></linearGradient></defs><path fill="url(#IconifyId1813088fe1fbc01fb466)" d="M255.153 37.938L134.897 252.976c-2.483 4.44-8.862 4.466-11.382.048L.875 37.958c-2.746-4.814 1.371-10.646 6.827-9.67l120.385 21.517a6.537 6.537 0 0 0 2.322-.004l117.867-21.483c5.438-.991 9.574 4.796 6.877 9.62Z"></path><path fill="url(#IconifyId1813088fe1fbc01fb467)" d="M185.432.063L96.44 17.501a3.268 3.268 0 0 0-2.634 3.014l-5.474 92.456a3.268 3.268 0 0 0 3.997 3.378l24.777-5.718c2.318-.535 4.413 1.507 3.936 3.838l-7.361 36.047c-.495 2.426 1.782 4.5 4.151 3.78l15.304-4.649c2.372-.72 4.652 1.36 4.15 3.788l-11.698 56.621c-.732 3.542 3.979 5.473 5.943 2.437l1.313-2.028l72.516-144.72c1.215-2.423-.88-5.186-3.54-4.672l-25.505 4.922c-2.396.462-4.435-1.77-3.759-4.114l16.646-57.705c.677-2.35-1.37-4.583-3.769-4.113Z"></path></svg>


--------------------------------------------------------------------------------
/src/pages/FoodDelivery/components/DeliveryAddressForm.tsx:
--------------------------------------------------------------------------------
 1 | import { useFormContext, useFormState } from "react-hook-form"
 2 | import { TextField } from "../../../controls/TextField"
 3 | import { useRenderCount } from "../../../hooks/useRenderCount"
 4 | 
 5 | const RenderCount = useRenderCount()
 6 | 
 7 | export const DeliveryAddressForm = () => {
 8 |   const { register } = useFormContext<{ address: DeliveryAddressFormType }>()
 9 | 
10 |   const { errors } = useFormState<{ address: DeliveryAddressFormType }>({
11 |     name: "address",
12 |   })
13 | 
14 |   return (
15 |     <>
16 |       {/* <RenderCount /> */}
17 |       <div className="text-start fw-bold mt-4 mb-2">Delivery Address</div>
18 |       <div className="row mb-3">
19 |         <div className="col">
20 |           <TextField
21 |             label="Street Address"
22 |             error={errors.address?.streetAddress}
23 |             {...register("address.streetAddress", {
24 |               required: "This field is required.",
25 |             })}
26 |           />
27 |         </div>
28 |         <div className="col">
29 |           <TextField
30 |             label="City"
31 |             error={errors.address?.city}
32 |             {...register("address.city", {
33 |               required: "This field is required.",
34 |             })}
35 |           />
36 |         </div>
37 |       </div>
38 |       <div className="row mb-3">
39 |         <div className="col">
40 |           <TextField label="Landmark" {...register("address.landmark")} />
41 |         </div>
42 |         <div className="col">
43 |           <TextField label="State" {...register("address.state")} />
44 |         </div>
45 |       </div>
46 |     </>
47 |   )
48 | }
49 | 


--------------------------------------------------------------------------------
/src/pages/FoodDelivery/components/CheckoutForm.tsx:
--------------------------------------------------------------------------------
 1 | import { useFormContext, useFormState, useWatch } from "react-hook-form"
 2 | import { Select } from "../../../controls/Select"
 3 | import { useRenderCount } from "../../../hooks/useRenderCount"
 4 | import { useEffect } from "react"
 5 | 
 6 | const paymentOptions: SelectOptionType[] = [
 7 |   { value: "", text: "Select" },
 8 |   { value: "online", text: "Paid Online" },
 9 |   { value: "COD", text: "Cash On Delivery" },
10 | ]
11 | 
12 | const deliveryInOptions: SelectOptionType[] = [
13 |   { value: 0, text: "Select" },
14 |   { value: 30, text: "Half an Hour" },
15 |   { value: 60, text: "1 Hour" },
16 |   { value: 120, text: "2 Hour" },
17 |   { value: 180, text: "3 Hour" },
18 | ]
19 | 
20 | const RenderCount = useRenderCount()
21 | 
22 | export const CheckoutForm = () => {
23 |   const {
24 |     register
25 |   } = useFormContext<CheckoutFormType>()
26 | 
27 |   const { errors } = useFormState<CheckoutFormType>({
28 |     name: ["paymentMethod", "deliveryIn"],
29 |     exact:true,
30 |   })
31 | 
32 | 
33 |   return (
34 |     <>
35 |       {/* <RenderCount /> */}
36 |       <div className="text-start fw-bold mt-4 mb-2">Checkout Details</div>
37 |       <div className="row mb-2">
38 |         <div className="col">
39 |           <Select
40 |             label="Payment Method"
41 |             options={paymentOptions}
42 |             {...register("paymentMethod", {
43 |               required: "This field is required.",
44 |             })}
45 |             error={errors.paymentMethod}
46 |           />
47 |         </div>
48 |         <div className="col">
49 |           <Select
50 |             label="Delivery Within"
51 |             options={deliveryInOptions}
52 |             {...register("deliveryIn",{
53 |               valueAsNumber:true
54 |             })}
55 |           />
56 |         </div>
57 |       </div>
58 |     </>
59 |   )
60 | }
61 | 


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/src/pages/FoodDelivery/components/MasterFoodDeliveryForm.tsx:
--------------------------------------------------------------------------------
 1 | import { useFormContext, useFormState } from "react-hook-form"
 2 | import { TextField } from "../../../controls/TextField"
 3 | import { useRenderCount } from "../../../hooks/useRenderCount"
 4 | 
 5 | const RenderCount = useRenderCount()
 6 | 
 7 | export const MasterFoodDeliveryForm = () => {
 8 |   const { register } = useFormContext<MasterFoodDeliveryFormType>()
 9 | 
10 |   const { errors } = useFormState<MasterFoodDeliveryFormType>({
11 |     name: ["orderNo", "customerName", "mobile", "email"],
12 |     exact: true,
13 |   })
14 | 
15 |   return (
16 |     <>
17 |       {/* <RenderCount /> */}
18 |       <input type="hidden" {...register("orderId")} />
19 |       <input type="hidden" {...register("placedOn")} />
20 |       <div className="row mb-2">
21 |         <div className="col">
22 |           <TextField label="#Order No." disabled {...register("orderNo")} />
23 |         </div>
24 |         <div className="col">
25 |           <TextField
26 |             label="Mobile"
27 |             {...register("mobile", {
28 |               required: "This field is required.",
29 |             })}
30 |             error={errors.mobile}
31 |           />
32 |         </div>
33 |       </div>
34 |       <div className="row mb-2">
35 |         <div className="col">
36 |           <TextField
37 |             label="Customer Name"
38 |             {...register("customerName", {
39 |               required: "This field is required.",
40 |             })}
41 |             error={errors.customerName}
42 |           />
43 |         </div>
44 |         <div className="col">
45 |           <TextField
46 |             type="email"
47 |             label="Email"
48 |             {...register("email", {
49 |               pattern: {
50 |                 value: /^[^\s@]+@[^\s@]+\.[^\s@]+$/,
51 |                 message: "Incorrect email format.",
52 |               },
53 |             })}
54 |             error={errors.email}
55 |           />
56 |         </div>
57 |       </div>
58 |     </>
59 |   )
60 | }
61 | 


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/src/TypicalForm.tsx:
--------------------------------------------------------------------------------
 1 | import { ChangeEvent, SyntheticEvent, useState } from "react"
 2 | import { useRenderCount } from "./hooks/useRenderCount"
 3 | 
 4 | type FoodDeliveryFormType = {
 5 |   customerName: string
 6 |   mobile: string
 7 | }
 8 | 
 9 | type FoodDeliveryFormErrorType = {
10 |   customerName: string
11 |   mobile: string
12 | }
13 | 
14 | const RenderCount = useRenderCount()
15 | 
16 | export const TypicalForm = () => {
17 |   const [values, setValues] = useState<FoodDeliveryFormType>({
18 |     customerName: "",
19 |     mobile: "",
20 |   })
21 |   const [errors, setErrors] = useState<FoodDeliveryFormErrorType>({
22 |     customerName: "",
23 |     mobile: "",
24 |   })
25 | 
26 |   const handleInputChange = (e: ChangeEvent<HTMLInputElement>) => {
27 |     const { name, value } = e.target
28 |     setValues({ ...values, [name]: value })
29 |   }
30 | 
31 |   const validateFormData = () => {
32 |     let tempErrors: FoodDeliveryFormErrorType = {
33 |       customerName: "",
34 |       mobile: "",
35 |     }
36 |     if (values.customerName == "")
37 |       tempErrors.customerName = "Customer name is required."
38 |     if (values.mobile == "") tempErrors.mobile = "Mobile number is required."
39 |     setErrors(tempErrors)
40 | 
41 |     return Object.values(tempErrors).every((x) => x == "")
42 |   }
43 | 
44 |   const onSubmit = (e: SyntheticEvent<HTMLFormElement>) => {
45 |     e.preventDefault()
46 |     if (validateFormData()) console.log("form data", values)
47 |     else console.log("form is invalid")
48 |   }
49 | 
50 |   return (
51 |     <form autoComplete="off" onSubmit={onSubmit}>
52 |       <RenderCount />
53 |       <div className="form-floating mb-3">
54 |         <input
55 |           type="text"
56 |           name="customerName"
57 |           className="form-control"
58 |           placeholder="Customer Name"
59 |           value={values.customerName}
60 |           onChange={handleInputChange}
61 |         />
62 |         <label>Customer Name</label>
63 |       </div>
64 |       <div className="form-floating mb-3">
65 |         <input
66 |           type="text"
67 |           name="mobile"
68 |           className="form-control"
69 |           placeholder="Mobile"
70 |           value={values.mobile}
71 |           onChange={handleInputChange}
72 |         />
73 |         <label>Mobile</label>
74 |       </div>
75 |       <button type="submit" className="btn btn-primary">
76 |         Submit
77 |       </button>
78 |     </form>
79 |   )
80 | }
81 | 


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/src/pages/FoodDelivery/FoodDeliveryForm.tsx:
--------------------------------------------------------------------------------
  1 | import {
  2 |   useForm,
  3 |   FieldErrors,
  4 |   UseFormReturn,
  5 |   FormProvider,
  6 |   useWatch,
  7 | } from "react-hook-form"
  8 | import { useRenderCount } from "../../hooks/useRenderCount"
  9 | import { CheckoutForm } from "./components/CheckoutForm"
 10 | import { DeliveryAddressForm } from "./components/DeliveryAddressForm"
 11 | import { MasterFoodDeliveryForm } from "./components/MasterFoodDeliveryForm"
 12 | import SubmitButton from "../../controls/SubmitButton"
 13 | import OrderedFoodItems from "./components/OrderedFoodItems"
 14 | import { createOrder, fetchLastOrder } from "../../db"
 15 | import FormLoader from "../common/FormLoader"
 16 | 
 17 | const RenderCount = useRenderCount()
 18 | 
 19 | const id: number = 0
 20 | 
 21 | const initialValues: FoodDeliveryFormType = {
 22 |   orderId: 0,
 23 |   orderNo: new Date().valueOf(),
 24 |   customerName: "",
 25 |   mobile: "",
 26 |   email: "",
 27 |   placedOn: new Date(),
 28 |   gTotal: 0,
 29 |   paymentMethod: "",
 30 |   deliveryIn: 0,
 31 |   foodItems: [{ foodId: 0, price: 0, quantity: 0, totalPrice: 0 }],
 32 |   address: {
 33 |     streetAddress: "",
 34 |     landmark: "",
 35 |     city: "",
 36 |     state: "",
 37 |   },
 38 | }
 39 | 
 40 | export const FoodDeliveryForm = () => {
 41 |   const methods: UseFormReturn<FoodDeliveryFormType> =
 42 |     useForm<FoodDeliveryFormType>({
 43 |       mode: "onChange",
 44 |       shouldUnregister: true,
 45 |       defaultValues: async (): Promise<FoodDeliveryFormType> => {
 46 |         if (id == 0) return new Promise((resolve) => resolve(initialValues))
 47 |         else {
 48 |           const tempOrder = await fetchLastOrder()
 49 |           return new Promise((resolve) =>
 50 |             resolve(tempOrder ? tempOrder : initialValues)
 51 |           )
 52 |         }
 53 |       },
 54 |     })
 55 | 
 56 |   const {
 57 |     handleSubmit,
 58 |     control,
 59 |     resetField,
 60 |     reset,
 61 |     setError,
 62 |     clearErrors
 63 |   } = methods
 64 | 
 65 |   const onSubmit = async (formData: FoodDeliveryFormType) => {
 66 |     //add a delay
 67 |     await new Promise((resolve) => setTimeout(resolve, 1500))
 68 |     formData.orderId = 1
 69 |     formData.placedOn = new Date()
 70 |     // setError("email",{type:"duplicateEmail",message:"The email already taken."})
 71 |     // createOrder(formData)
 72 |     console.log("submitted form data", formData)
 73 |   }
 74 | 
 75 |   const onError = (err: FieldErrors) => {
 76 |     console.log("validation errors", err)
 77 |   }
 78 | 
 79 |   const onReset = () => {
 80 |     reset(initialValues, { keepErrors: true })
 81 |     // clearErrors()
 82 |   }
 83 | 
 84 |   return (
 85 |     <form
 86 |       autoComplete="off"
 87 |       noValidate
 88 |       onSubmit={handleSubmit(onSubmit, onError)}
 89 |     >
 90 |       <RenderCount />
 91 |       <FormLoader control={control} />
 92 |       <FormProvider {...methods}>
 93 |         <MasterFoodDeliveryForm />
 94 |         <OrderedFoodItems />
 95 |         <CheckoutForm />
 96 |         <DeliveryAddressForm />
 97 |       </FormProvider>
 98 |       <SubmitButton value="Submit" control={control} />
 99 |       <button
100 |         className="btn btn-secondary ms-2"
101 |         onClick={onReset}
102 |         type="button"
103 |       >
104 |         Reset
105 |       </button>
106 |     </form>
107 |   )
108 | }
109 | 


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/src/assets/react.svg:
--------------------------------------------------------------------------------
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/src/pages/FoodDelivery/components/OrderedFoodItems.tsx:
--------------------------------------------------------------------------------
  1 | import {
  2 |   useFieldArray,
  3 |   useFormContext,
  4 |   useFormState,
  5 |   useWatch,
  6 | } from "react-hook-form"
  7 | import { TextField } from "../../../controls/TextField"
  8 | import { useRenderCount } from "../../../hooks/useRenderCount"
  9 | import { useState, useEffect, ChangeEvent } from "react"
 10 | import { getFoodItems } from "../../../db"
 11 | import { Select } from "../../../controls/Select"
 12 | import { roundTo2DecimalPoint } from "../../../utils"
 13 | 
 14 | const RenderCount = useRenderCount()
 15 | 
 16 | export default function OrderedFoodItems() {
 17 |   const [foodList, setFoodList] = useState<FoodType[]>([])
 18 |   const [foodOptions, setFoodOptions] = useState<SelectOptionType[]>([])
 19 | 
 20 |   useEffect(() => {
 21 |     const tempList: FoodType[] = getFoodItems()
 22 |     const tempOptions: SelectOptionType[] = tempList.map((x) => ({
 23 |       value: x.foodId,
 24 |       text: x.name,
 25 |     }))
 26 |     setFoodList(tempList)
 27 |     setFoodOptions([{ value: 0, text: "Select" }, ...tempOptions])
 28 |   }, [])
 29 | 
 30 |   const { register, setValue, getValues, trigger } = useFormContext<
 31 |     { gTotal: number } & {
 32 |       foodItems: OrderedFoodItemType[]
 33 |     }
 34 |   >()
 35 | 
 36 |   const { errors } = useFormState<{ foodItems: OrderedFoodItemType[] }>({
 37 |     name: "foodItems",
 38 |   })
 39 | 
 40 |   const { fields, append, remove } = useFieldArray<{
 41 |     foodItems: OrderedFoodItemType[]
 42 |   }>({
 43 |     name: "foodItems",
 44 |     rules: {
 45 |       required: {
 46 |         value: true,
 47 |         message: "No food in the order.",
 48 |       },
 49 |     },
 50 |   })
 51 | 
 52 |   const selectedFoodItems: OrderedFoodItemType[] = useWatch({
 53 |     name: "foodItems",
 54 |   })
 55 |   useWatch({ name: "gTotal" })
 56 | 
 57 |   useEffect(() => {
 58 |     updateGTotal()
 59 |   }, [selectedFoodItems])
 60 | 
 61 |   const updateGTotal = () => {
 62 |     let gTotal = 0
 63 |     if (selectedFoodItems && selectedFoodItems.length > 0)
 64 |       gTotal = selectedFoodItems.reduce((sum, curr) => sum + curr.totalPrice, 0)
 65 |     setValue("gTotal", roundTo2DecimalPoint(gTotal))
 66 |   }
 67 | 
 68 |   const onRowAdd = () => {
 69 |     append({ foodId: 0, price: 0, quantity: 0, totalPrice: 0 })
 70 |   }
 71 | 
 72 |   const onRowDelete = (index: number) => {
 73 |     remove(index)
 74 |   }
 75 | 
 76 |   const onFoodChange = (
 77 |     e: ChangeEvent<HTMLSelectElement>,
 78 |     rowIndex: number
 79 |   ) => {
 80 |     const foodId = parseInt(e.target.value)
 81 |     let price: number
 82 |     if (foodId == 0) price = 0
 83 |     else price = foodList.find((x) => x.foodId == foodId)?.price || 0
 84 |     setValue(`foodItems.${rowIndex}.price`, price)
 85 |     updateRowTotalPrice(rowIndex)
 86 |   }
 87 | 
 88 |   const updateRowTotalPrice = (rowIndex: number) => {
 89 |     const { price, quantity } = getValues(`foodItems.${rowIndex}`)
 90 |     let totalPrice = 0
 91 |     if (quantity && quantity > 0) totalPrice = price * quantity
 92 |     setValue(
 93 |       `foodItems.${rowIndex}.totalPrice`,
 94 |       roundTo2DecimalPoint(totalPrice)
 95 |     )
 96 |   }
 97 | 
 98 |   return (
 99 |     <>
100 |       {/* <RenderCount /> */}
101 |       <div className="text-start fw-bold mt-4">Ordered Food Items</div>
102 |       <table id="foodItems" className="table table-borderless table-hover">
103 |         <thead>
104 |           <tr>
105 |             <th>Food</th>
106 |             <th className="text-start">Price</th>
107 |             <th>Quantity</th>
108 |             <th className="text-start">T. Price</th>
109 |             <th>
110 |               <button
111 |                 type="button"
112 |                 className="btn btn-sm btn-secondary"
113 |                 onClick={onRowAdd}
114 |               >
115 |                 + Add
116 |               </button>
117 |             </th>
118 |           </tr>
119 |         </thead>
120 |         <tbody>
121 |           {fields.map((field, index) => (
122 |             <tr key={field.id}>
123 |               <td>
124 |                 <Select
125 |                   options={foodOptions}
126 |                   error={errors.foodItems && errors.foodItems[index]?.foodId}
127 |                   {...register(`foodItems.${index}.foodId` as const, {
128 |                     valueAsNumber: true,
129 |                     min: {
130 |                       value: 1,
131 |                       message: "Select food.",
132 |                     },
133 |                     onChange: (e) => {
134 |                       onFoodChange(e, index)
135 |                       trigger(`foodItems.${index}.quantity`)
136 |                     },
137 |                   })}
138 |                 />
139 |               </td>
140 |               <td className="text-start pt-3">
141 |                 {"$" + getValues(`foodItems.${index}.price`)}
142 |               </td>
143 |               <td>
144 |                 <TextField
145 |                   type="number"
146 |                   min={0}
147 |                   error={errors.foodItems && errors.foodItems[index]?.quantity}
148 |                   {...register(`foodItems.${index}.quantity` as const, {
149 |                     valueAsNumber: true,
150 |                     required: "< 1.",
151 |                     validate: {
152 |                       notMoreThanStock: async (value: number) => {
153 |                         //add a delay
154 |                         await new Promise((resolve) =>
155 |                           setTimeout(resolve, 1000)
156 |                         )
157 |                         if (value && value > 9) return "OOS."
158 |                         else return true
159 |                       },
160 |                     },
161 |                     min: {
162 |                       value: 1,
163 |                       message: "< 1.",
164 |                     },
165 |                     onChange: () => {
166 |                       updateRowTotalPrice(index)
167 |                     },
168 |                   })}
169 |                 />
170 |               </td>
171 |               <td className="text-start pt-3">
172 |                 {"$" + getValues(`foodItems.${index}.totalPrice`)}
173 |               </td>
174 |               <td>
175 |                 <button
176 |                   type="button"
177 |                   className="btn btn-sm btn-outline-danger"
178 |                   onClick={() => onRowDelete(index)}
179 |                 >
180 |                   DEL
181 |                 </button>
182 |               </td>
183 |             </tr>
184 |           ))}
185 |         </tbody>
186 | 
187 |         <tfoot>
188 |           {fields && fields.length > 0 && (
189 |             <tr className="border-top">
190 |               <td colSpan={2}></td>
191 |               <td>G. Total</td>
192 |               <td className="text-start align-middle">
193 |                 {"$" + getValues("gTotal")}
194 |               </td>
195 |               <td></td>
196 |             </tr>
197 |           )}
198 |           {errors.foodItems?.root && (
199 |             <tr>
200 |               <td colSpan={5}>
201 |                 <span className="error-feedback">
202 |                   {errors.foodItems?.root?.message}
203 |                 </span>
204 |               </td>
205 |             </tr>
206 |           )}
207 |         </tfoot>
208 |       </table>
209 |     </>
210 |   )
211 | }
212 | 


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