02. People Exercise: Prototypes and Inheritance

function () {
    function Employee(name, age) {
        this.name = name;
        this.age = age;
        this.salary = 0;
        this.dividend = 0;
        this.tasks = [];

        this.work = function () {
            let currentTask = this.tasks.shift();
            console.log(`${this.name}${currentTask}`);
            this.tasks.push(currentTask);
        }
        this.collectSalary = function () {
            console.log(`${this.name} received ${this.salary + this.dividend} this month.`);
        };
    }

    function Junior(name, age) {
        Employee.call(this, name, age);
        this.tasks = [' is working on a simple task.'];
    }

    Junior.prototype = Object.create(Employee.prototype);
    // Object.setPrototypeOf(Junior, Employee);
    // Junior.prototype.constructor = Junior;

    function Senior(name, age) {

        Employee.call(this, name, age);
        this.tasks = [' is working on a complicated task.', ' is taking time off work.', ' is supervising junior workers.'];
    }

    Senior.prototype = Object.create(Employee.prototype);
    // Object.setPrototypeOf(Senior, Employee)
    // Senior.prototype.constructor = Senior;

    function Manager(name, age) {
        Employee.call(this, name, age);
        this.tasks = [' scheduled a meeting.', ' is preparing a quarterly report.'];
    }

    Manager.prototype = Object.create(Employee.prototype);
    // Object.setPrototypeOf(Manager, Employee);
    // Manager.prototype.constructor = Manager;

    return { Employee, Junior, Senior, Manager }
}