builder.ats

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

//Director
export class Director {
    constructor() {
        this.builder = null;
    }

    construct(builder:Builder) {
        this.builder = builder;
    }

    constructBuilding() {
        this.builder.newBuilding();
        this.builder.buildFloor();
        this.builder.buildSize();
    }

    getBuilding() {
        return this.builder.building;
    }
}

//Abstract Builder
export class Builder {
    constructor() {
        this.building = null;
    }

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

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

    newBuilding() {
        this.building = new Building();
    }
}

// Concrete Builder
export class HouseBuilder extends Builder {
    buildFloor() {
        this.building.floor = 'One';
    }

    buildSize() {
        this.building.size = 'Big';
    }
}

export class FlatBuilder extends Builder {
    buildFloor() {
        this.building.floor = 'More than One';
    }

    buildSize() {
        this.building.size = 'Small';
    }
}

//Product
export class Building {
    constructor() {
        this.floor = null;
        this.size = null;
    }

    toString():string {
        return 'Floor: ' + this.floor + ' | Size: ' + this.size;
    }
}