import express from "express";
import { Routes } from "../interfaces/router";
import cors from "cors";
import locator from "../di/register_di";
import { DevEnv, UnitTestEnv } from "../di/env";
import mongoose from "mongoose";
import { Server } from "socket.io";
import { createServer } from "http";
import { TypedEvent } from "../helper/typed_event";
import { SocketSubscriber } from "./socket_controller";

export class App {
  public app: express.Application;
  public port: number;
  public env: string;
  public socketSubscribers: SocketSubscriber<any>[];
  public io: Server;

  constructor(routes: Routes[], socketSubscribers: SocketSubscriber<any>[]) {
    this.port = 4001;
    this.socketSubscribers = socketSubscribers;
    this.env = "dev";
    this.app = express();
    this.loadAppDependencies().then(() => {
      this.initializeMiddlewares();
      this.initializeRoutes(routes);
    });
  }

  public listen() {
    const httpServer = createServer(this.app);
    const io = new Server(httpServer, {
      cors: { origin: "*" },
    });

    io.on("connection", (socket) => {
      this.socketSubscribers.map((el) => {
        el.emitter.on((e) => {
          socket.emit(el.event, e);
        });
      });
    });

    httpServer.listen(this.port, () => {
      console.info(`=================================`);
      console.info(`======= ENV: ${this.env} =======`);
      console.info(`🚀 HTTP http://localhost:${this.port}`);
      console.info(`🚀 WS ws://localhost:${this.port}`);
      console.info(`=================================`);
    });
    this.io = io;
  }

  public getServer() {
    return this.app;
  }

  private initializeMiddlewares() {
    this.app.use(cors());
    this.app.use(express.json());
    this.app.use(express.urlencoded({ extended: true }));
  }

  private initializeRoutes(routes: Routes[]) {
    routes.forEach((route) => {
      this.app.use("/", route.router);
    });
  }
  async loadAppDependencies() {
    // await locator(
    //   this.env == "development"
    //     ? new DevEnv(this.computedFolder)
    //     : new UnitTestEnv(this.computedFolder)
    // );

    mongoose
      .connect("mongodb://127.0.0.1:27017/test")
      .then(() => {})
      .catch((e) => {
        console.log("ERROR:", e);
      });
  }
}