import { IView } from "./IView";
import { IModel } from "./IModel";

export class Model<T> implements IModel<T> {
    protected view: IView;
    protected storage: T;

    constructor(view: IView, storageObj: T) {
        this.view = view;
        this.storage = storageObj;
    }

    public updateView(obj?: T | Object): void {
        this.view.setState(obj);
    }

    public setState(obj?: Object | T): void {
        const props = Object.keys(obj).map((key) => key);
        props.forEach((prop) => (this.storage as any)[prop] = (obj as any)[prop]);
        this.view.setState(obj);
    }

    public loadStorage() {
        const props = Object.keys(this.storage)
            .filter(key => key.indexOf('$_') == -1)
            .map((key) => key);
        let obj: any = {};
        props.forEach((prop) => obj[prop] = (this.storage as any)[prop]);
        this.view.setState(obj);
    }
}