import {
  AppInterface,
  BaseService,
  DashboardAdapterInterface,
  DashboardAdapterContext,
  DashboardInterface,
  WidgetInterface,
  WidgetTypePresetsInterface,
} from "..";

export class DashboardService extends BaseService {
  private app: AppInterface;
  private adapter: DashboardAdapterInterface;
  private context: DashboardAdapterContext;

  constructor(app: AppInterface, adapter: DashboardAdapterInterface) {
    super();

    this.app = app;
    this.adapter = adapter;
    this.context = new DashboardAdapterContext(this, this.app);

    this.initAdapter(adapter, this.context, app.services);
  }

  getDashboard(id: string): DashboardInterface {
    return this.app.state.select(state =>
      state.dashboards.dashboards.find(db => db.id === id)
    );
  }

  listDashboards(): DashboardInterface[] {
    return this.app.state.select(state => state.dashboards.dashboards);
  }

  getCurrentDashboard(): DashboardInterface {
    return this.app.state.select(state =>
      state.dashboards.dashboards.find(
        db =>
          db.id === state.dashboards.currentDashboard &&
          db.source === state.sources.current?.id
      )
    );
  }

  setCurrentDashboard(db: DashboardInterface): void {
    this.app.state.update(state => {
      state.dashboards.currentDashboard = db?.id;
    });

    this.notifySubscribers();
  }

  async createDashboard(dashboard: DashboardInterface): Promise<string> {
    const source = this.app.services.SourceService.getCurrent();

    return await this.adapter.createDashboard({
      ...dashboard,
      source: source?.id,
    });
  }

  async updateDashboard(dashboard: DashboardInterface): Promise<void> {
    return await this.adapter.updateDashboard(dashboard);
  }

  async deleteDashboard(dashboard: DashboardInterface): Promise<void> {
    return await this.adapter.deleteDashboard(dashboard);
  }

  async createWidget(widget: WidgetInterface): Promise<string> {
    return await this.adapter.createWidget(widget);
  }

  async updateWidget(widget: WidgetInterface): Promise<void> {
    return await this.adapter.updateWidget(widget);
  }

  async deleteWidget(widget: WidgetInterface): Promise<void> {
    return await this.adapter.deleteWidget(widget);
  }

  async addPresetsToDashboard(
    dashboard: DashboardInterface,
    presets: WidgetTypePresetsInterface[]
  ): Promise<void> {
    const widgets = [];
    const layout = [];

    for (const preset of presets) {
      // @ts-ignore
      const id = await this.createWidget(preset.widget);

      widgets.push(id);
      if (Array.isArray(preset.layout)) {
        const [h, w] = preset.layout;

        layout.push({ i: id, w, h, x: 0, y: 0 });
      } else {
        layout.push({ i: id, w: 4, h: 4, x: 0, y: 0 });
      }
    }

    this.updateDashboard({
      ...dashboard,
      widgets: [...dashboard.widgets, ...widgets],
      layout: [...dashboard.layout, ...layout],
    });
  }
}