const {Board, Piece} = require('./src/backend');

const express = require("express");
const http = require("http");
const socketIo = require("socket.io");

const port = process.env.PORT || 4001;

const app = express();

const server = http.createServer(app);

const io = socketIo(server, {
  cors: {
    cors: true,
    origins: ["http://192.168.1.7:3000"],
  }
});

let interval;

let board = new Board();

let sockets = [];

io.on("connection", (socket) => {
  sockets.push(socket);
  console.log("New client connected");
  if (interval) {
    clearInterval(interval);
  }
  getApiAndEmit(socket);
  //interval = setInterval(() => getApiAndEmit(socket), 5000);
  socket.on("disconnect", () => {
    // TODO sockets.remove(socket)
    console.log("Client disconnected");
    clearInterval(interval);
  });

  socket.on("move", (move) => {
    console.log("Received move");
    if(move && board.makeMove(move.from, move.to) == 0) {
      for (s of sockets) {
        getApiAndEmit(s);
      }
    }
  });
});

const getApiAndEmit = socket => {
  const response = board.textFromState();
  console.log(response);
  // Emitting a new message. Will be consumed by the client
  socket.emit("FromAPI", response);
};

server.listen(port, () => console.log(`Listening on port ${port}`));