import { autorun, runInAction, when } from "mobx";

import { ErrorCode } from "@common/ErrorCode";
import * as deviceRequests from "@common/sprinklersRpc/deviceRequests";
import * as s from "@common/sprinklersRpc/index";
import * as ws from "@common/sprinklersRpc/websocketData";
import { log, WebSocketRpcClient } from "./WebSocketRpcClient";

// tslint:disable:member-ordering
export class WSSprinklersDevice extends s.SprinklersDevice {
  readonly api: WebSocketRpcClient;

  constructor(api: WebSocketRpcClient, id: string) {
    super(api, id);
    this.api = api;

    autorun(this.updateConnectionState);
    this.waitSubscribe();
  }

  private updateConnectionState = () => {
    const { clientToServer, serverToBroker } = this.api.connectionState;
    runInAction("updateConnectionState", () => {
      Object.assign(this.connectionState, { clientToServer, serverToBroker });
    });
  };

  async subscribe() {
    const subscribeRequest: ws.IDeviceSubscribeRequest = {
      deviceId: this.id
    };
    try {
      await this.api.makeRequest("deviceSubscribe", subscribeRequest);
      runInAction("deviceSubscribeSuccess", () => {
        this.connectionState.hasPermission = true;
      });
    } catch (err) {
      runInAction("deviceSubscribeError", () => {
        this.connectionState.brokerToDevice = false;
        if ((err as ws.IError).code === ErrorCode.NoPermission) {
          this.connectionState.hasPermission = false;
        } else {
          log.error({ err });
        }
      });
    }
  }

  async unsubscribe() {
    const unsubscribeRequest: ws.IDeviceSubscribeRequest = {
      deviceId: this.id
    };
    try {
      await this.api.makeRequest("deviceUnsubscribe", unsubscribeRequest);
      runInAction("deviceUnsubscribeSuccess", () => {
        this.connectionState.brokerToDevice = false;
      });
    } catch (err) {
      log.error({ err }, "error unsubscribing from device");
    }
  }

  makeRequest(
    request: deviceRequests.Request
  ): Promise<deviceRequests.Response> {
    return this.api.makeDeviceCall(this.id, request);
  }

  waitSubscribe = () => {
    when(
      () => this.api.authenticated,
      () => {
        this.subscribe();
        when(() => !this.api.authenticated, this.waitSubscribe);
      }
    );
  };
}