const bodyParser = require("body-parser");
const cors = require("cors");
const express = require("express");
const fs = require("fs");
const helmet = require("helmet");
const http = require("http");
const https = require("https");
const logger = require("morgan");
const socketIO = require("socket.io");
const path = require("path");
const routesWs = require("./modules");
const { tokenVerify } = require("./middlewares/token");
const { dbConn } = require("./middlewares/db");
const { tokenDecode } = require("./middlewares/tokenDecode");

require("dotenv-safe").config({
  allowEmptyValues: true
});

class App {
  constructor() {
    this.port = 80;
    this.app = express();
    this.middlewares();
    this.encapsuleSocket();
    this.routes();
    this.serverOn();
    this.socketOn();
  }

  middlewares() {
    this.app.use(express.json());
    this.app.use(cors({ credentials: true, origin: true }));
    this.app.use(helmet());
    this.app.use(logger("dev"));
    this.app.use(bodyParser.urlencoded({ extended: true, limit: "200mb" }));
    this.app.use(
      bodyParser.json({
        type: ["json", "application/csp-report"],
        limit: "200mb"
      })
    );
    this.app.disable("x-powered-by");
    this.app.use(express.static(path.join(__dirname, "public")));
  }

  async routes() {
    this.app.use("/*", tokenVerify, dbConn, routesWs);
  }

  socketOn() {
    this.io.on("connect", async socket => {
      const { token } = socket.handshake.query;
      const tokenDecoded = await tokenDecode(token);
      console.log("user connected => " + socket.id);
    });

    this.io.on("disconnect", socket => {
      console.log(`user disconected => ${socket.id}`);
      socket.disconnect();
    });
  }

  encapsuleSocket() {
    this.app.use((req, res, next) => {
      req.io = this.io;
      next();
    });
  }

  serverOn() {
    if (process.env.LOCAL === "LOCAL") {
      this.port = 3001;
      this.server = http.Server(this.app).listen(this.port, () => {
        console.log(`server is runing on port ${this.port}`);
      });
    } else {
      this.port = 443;
      const options = {
        key: fs.readFileSync("ssl-matrixSwot/cert.key"),
        cert: fs.readFileSync("ssl-matrixSwot/cert.crt")
      };

      this.server = https.Server(options, this.app);
      this.serverHttp = http.Server(this.app);
      this.serverHttp.listen(80, () => {
        console.log("server is runing on port 80");
      });
    }

    this.io = socketIO(this.server);
    this.io.origins("*:*");
  }
}

module.exports = process.env.TEST === "TEST" ? new App().server : new App();