abstract class PlantCreator {

    public abstract getInstance(): IPlant;

    public getName(): string {
        const plant = this.getInstance();

        return plant.name;
    }

    public getType(): string {
        const plant = this.getInstance();

        return plant.type;
    }
}

interface IPlant {
    name?: string;
    sort?: string;
    type?: string;
}

class CannabisFactory extends PlantCreator {
    constructor(
        name: string, sort: string
    ) {
        super();
        this.name = name;
        this.sort = sort;
    }

    private type: string = 'Cannabis';
    private name: string;
    private sort: string;

    public getInstance(): IPlant {
        return new Cannabis(
            this.name, this.sort
        );
    }
}

class Cannabis implements IPlant {
    constructor(
        name: string,
        sort: string
    ) { }

    sort: string = this.sort;

    public getSort(): string {
        return this.sort;
    }
}

function getNewGanja(ganja: PlantCreator): void {
    console.log(ganja.getName());
}

getNewGanja(new CannabisFactory('First', 'WW'));