└── Inheritance


/Inheritance:
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  1 | // SPDX-License-Identifier: MIT
  2 | 
  3 | pragma solidity 0.8.17;
  4 | 
  5 | /**
  6 |  * @title Employee
  7 |  * @dev Abstract contract defining common properties and behavior for employees.
  8 |  */
  9 | abstract contract Employee {
 10 |     uint public idNumber; // Unique identifier for the employee
 11 |     uint public managerId; // Identifier of the manager overseeing the employee
 12 | 
 13 |     /**
 14 |      * @dev Constructor to initialize idNumber and managerId.
 15 |      * @param _idNumber The unique identifier for the employee.
 16 |      * @param _managerId The identifier of the manager overseeing the employee.
 17 |      */
 18 |     constructor(uint _idNumber, uint _managerId) {
 19 |         idNumber = _idNumber;
 20 |         managerId = _managerId;
 21 |     }
 22 | 
 23 |     /**
 24 |      * @dev Abstract function to be implemented by derived contracts to get the annual cost of the employee.
 25 |      * @return The annual cost of the employee.
 26 |      */
 27 |     function getAnnualCost() public virtual returns (uint);
 28 | }
 29 | 
 30 | /**
 31 |  * @title Salaried
 32 |  * @dev Contract representing employees who are paid an annual salary.
 33 |  */
 34 | contract Salaried is Employee {
 35 |     uint public annualSalary; // The annual salary of the employee
 36 | 
 37 |     /**
 38 |      * @dev Constructor to initialize the Salaried contract.
 39 |      * @param _idNumber The unique identifier for the employee.
 40 |      * @param _managerId The identifier of the manager overseeing the employee.
 41 |      * @param _annualSalary The annual salary of the employee.
 42 |      */
 43 |     constructor(uint _idNumber, uint _managerId, uint _annualSalary) Employee(_idNumber, _managerId) {
 44 |         annualSalary = _annualSalary;
 45 |     }
 46 | 
 47 |     /**
 48 |      * @dev Overrides the getAnnualCost function to return the annual salary of the employee.
 49 |      * @return The annual salary of the employee.
 50 |      */
 51 |     function getAnnualCost() public override view returns (uint) {
 52 |         return annualSalary;
 53 |     }
 54 | }
 55 | 
 56 | /**
 57 |  * @title Hourly
 58 |  * @dev Contract representing employees who are paid an hourly rate.
 59 |  */
 60 | contract Hourly is Employee {
 61 |     uint public hourlyRate; // The hourly rate of the employee
 62 | 
 63 |     /**
 64 |      * @dev Constructor to initialize the Hourly contract.
 65 |      * @param _idNumber The unique identifier for the employee.
 66 |      * @param _managerId The identifier of the manager overseeing the employee.
 67 |      * @param _hourlyRate The hourly rate of the employee.
 68 |      */
 69 |     constructor(uint _idNumber, uint _managerId, uint _hourlyRate) Employee(_idNumber, _managerId) {
 70 |         hourlyRate = _hourlyRate;
 71 |     }
 72 | 
 73 |     /**
 74 |      * @dev Overrides the getAnnualCost function to calculate the annual cost based on the hourly rate.
 75 |      * Assuming a full-time workload of 2080 hours per year.
 76 |      * @return The annual cost of the employee.
 77 |      */
 78 |     function getAnnualCost() public override view returns (uint) {
 79 |         return hourlyRate * 2080;
 80 |     }
 81 | }
 82 | 
 83 | /**
 84 |  * @title Manager
 85 |  * @dev Contract managing a list of employee IDs.
 86 |  */
 87 | contract Manager {
 88 |     uint[] public employeeIds; // List of employee IDs
 89 | 
 90 |     /**
 91 |      * @dev Function to add a new employee ID to the list.
 92 |      * @param _reportId The ID of the employee to be added.
 93 |      */
 94 |     function addReport(uint _reportId) public {
 95 |         employeeIds.push(_reportId);
 96 |     }
 97 | 
 98 |     /**
 99 |      * @dev Function to reset the list of employee IDs.
100 |      */
101 |     function resetReports() public {
102 |         delete employeeIds;
103 |     }
104 | }
105 | 
106 | /**
107 |  * @title Salesperson
108 |  * @dev Contract representing salespeople who are paid hourly.
109 |  */
110 | contract Salesperson is Hourly {
111 |     /**
112 |      * @dev Constructor to initialize the Salesperson contract.
113 |      * @param _idNumber The unique identifier for the employee.
114 |      * @param _managerId The identifier of the manager overseeing the employee.
115 |      * @param _hourlyRate The hourly rate of the employee.
116 |      */
117 |     constructor(uint _idNumber, uint _managerId, uint _hourlyRate) 
118 |         Hourly(_idNumber, _managerId, _hourlyRate) {}
119 | }
120 | 
121 | /**
122 |  * @title EngineeringManager
123 |  * @dev Contract representing engineering managers who are paid an annual salary and have managerial responsibilities.
124 |  */
125 | contract EngineeringManager is Salaried, Manager {
126 |     /**
127 |      * @dev Constructor to initialize the EngineeringManager contract.
128 |      * @param _idNumber The unique identifier for the employee.
129 |      * @param _managerId The identifier of the manager overseeing the employee.
130 |      * @param _annualSalary The annual salary of the employee.
131 |      */
132 |     constructor(uint _idNumber, uint _managerId, uint _annualSalary) 
133 |         Salaried(_idNumber, _managerId, _annualSalary) {}
134 | }
135 | 
136 | /**
137 |  * @title InheritanceSubmission
138 |  * @dev Contract for deploying instances of Salesperson and EngineeringManager.
139 |  */
140 | contract InheritanceSubmission {
141 |     address public salesPerson; // Address of the deployed Salesperson instance
142 |     address public engineeringManager; // Address of the deployed EngineeringManager instance
143 | 
144 |     /**
145 |      * @dev Constructor to initialize the InheritanceSubmission contract.
146 |      * @param _salesPerson Address of the deployed Salesperson instance.
147 |      * @param _engineeringManager Address of the deployed EngineeringManager instance.
148 |      */
149 |     constructor(address _salesPerson, address _engineeringManager) {
150 |         salesPerson = _salesPerson;
151 |         engineeringManager = _engineeringManager;
152 |     }
153 | }
154 | 


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