command.ats

import { Logger } from '../logger';

export class Command {
    constructor(receiver:Receiver) {
        this.logger = new Logger();
        this.receiver = receiver;
    }

    execute() {
        throw new Error("Abstract method!");
    }
}

export class ConcreteCommand1 extends Command {
    constructor(receiver:Receiver) {
        super(receiver);
    }

    execute() {
        this.logger.log("`execute` method of ConcreteCommand1 is being called!");
        this.receiver.action();
    }
}

export class ConcreteCommand2 extends Command {
    constructor(receiver:Receiver) {
        super(receiver);
    }

    execute() {
        this.logger.log("`execute` method of ConcreteCommand2 is being called!");
        this.receiver.action();
    }
}

export class Invoker {
    constructor() {
        this.commands = [];
    }

    storeAndExecute(cmd:Command) {
        this.commands.push(cmd);
        cmd.execute();
    }
}

export class Receiver {
    constructor() {
        this.logger = new Logger();
    }

    action() {
        this.logger.log("action is being called!");
    }
}