/**
 * Parameters
 */
var webSocketsServerPort = 8080; // Adapt to the listening port number you want to use
/**
 * Global variables
 */
// websocket and http servers
var webSocketServer = require("websocket").server;
var http = require("http");
var teacherID = 0;
var game_page_counter = 0;
var login_page_counter = 0;
var connected_counter = 0;
var recentenents = [""];

/**
 * HTTP server to implement WebSockets
 */
var server = http.createServer(function (request, response) {
  // Not important for us. We're writing WebSocket server,
  // not HTTP server
});
server.listen(webSocketsServerPort, function () {
  console.log(" Server is listening on port " + webSocketsServerPort);
});

/**
 * WebSocket server
 */
var wsServer = new webSocketServer({
  // WebSocket server is tied to a HTTP server. WebSocket
  // request is just an enhanced HTTP request. For more info
  // http://tools.ietf.org/html/rfc6455#page-6
  httpServer: server,
});

// This callback function is called every time someone
// tries to connect to the WebSocket server
wsServer.on("request", function (request) {
  var connection = request.accept(null, request.origin);
  //
  // New Player has connected.  So let's record its socket

  var student = new Student(request.key, connection);
  // Add the player to the list of all players
  //
  console.log(student.index);
  Students.push(student);

  //
  // We need to return the unique id of that player to the player itself
  //
  connection.sendUTF(
    JSON.stringify({ action: "identity", data: student.index })
  );

  Students[teacherID].connection.sendUTF(
    JSON.stringify({
      action: "connected",
      data: Students.length,
    })
  );
  // Listen to any message sent by that player
  //
  connection.on("message", function (data) {
    // Process the requested action

    var message = JSON.parse(data.utf8Data);
    console.log(message);
    console.log(message.ID);
    switch (message.action) {
      // When the user sends the "join" action, he provides a name.
      // Let's record it and as the player has a name, let's
      // broadcast the list of all the players to everyone
      //
      case "activity_update":
        Students[teacherID].connection.sendUTF(
          JSON.stringify({
            action: "activity_update",
            data: "finished",
          })
        );

        game_page_counter = game_page_counter - 1;

        Students[teacherID].connection.sendUTF(
          JSON.stringify({
            action: "page_counter",
            data: {
              login_page: login_page_counter,
              game_page: game_page_counter,
            },
          })
        );

        break;

      case "page_changed":
        Students[student.index].current_page = message.data;
        console.log(Students[student.index].current_page);
        if (message.data === "game_page") {
          game_page_counter = game_page_counter + 1;
          login_page_counter = login_page_counter - 1;
        }
        if (message.data === "login_page") {
          //    game_page_counter = game_page_counter - 1;
          login_page_counter = login_page_counter + 1;
        }
        Students[teacherID].connection.sendUTF(
          JSON.stringify({
            action: "page_counter",
            data: {
              login_page: login_page_counter,
              game_page: game_page_counter,
            },
          })
        );
        break;

      case "progress_update":
        Students[parseInt(message.ID)].progress_ac8 = message.data;
        Students[teacherID].connection.sendUTF(
          JSON.stringify({
            action: "progress_update",
            data: Students[parseInt(message.ID)].progress_ac8,
          })
        );
        break;

      case "identity":
        if (message.data === "teacher") {
          teacherID = student.index;
        }
        console.log("this is teacher ID: " + teacherID);

        break;

      case "names":
        student.member1name = message.data.member1;
        student.member2name = message.data.member2;
        student.member3name = message.data.member3;
        Students[teacherID].connection.sendUTF(
          JSON.stringify({
            action: "names",
            studentID: message.ID,
            data: {
              mem1: student.member1name,
              mem2: student.member2name,
              mem3: student.member3name,
            },
          })
        );
        console.log("namesreceived");
        break;

      //// for teachers
      case "pause":
        //  Students[0].connection.sendUTF(message);
        Students[1].connection.sendUTF(
          JSON.stringify({
            action: "paused",
          })
        );
        break;
      case "next":
        //  Students[0].connection.sendUTF(message);
        Students[1].connection.sendUTF(
          JSON.stringify({
            action: "next",
          })
        );
        //        Students[2].connection.sendUTF(message);

        break;

      case "next_activity":
        break;
    }
  });

  // user disconnected
  connection.on("close", function (connection) {
    // We need to remove the corresponding player
    // TODO
  });
});

// -----------------------------------------------------------
// List of all players
// -----------------------------------------------------------
var Students = [];

function Student(id, connection) {
  this.id = id;
  this.connection = connection;
  this.member1name = "";
  this.member2name = "";
  this.member3name = "";
  this.teamname = "";
  this.robot1code = "";
  this.robot2code = "";
  this.current_page = "";
  this.current_Ac = "";
  this.current_phase = "";
  this.progress_ac8 = {
    progress: 0.0,
    totalTaps: 0,
    inactivity: 0,
    mistakesSlope: 0,
    mistakesIntrepet: 0,
  };
  this.index = Students.length;
}

Student.prototype = {
  getId: function () {
    return { name: this.name, id: this.id };
  },
  setOpponent: function (id) {
    var self = this;
    Students.forEach(function (student, index) {
      if (student.id == id) {
        self.opponentIndex = index;
        Students[index].opponentIndex = self.index;
        return false;
      }
    });
  },
};

function BroadcastPlayersList() {
  var playersList = [];
  Players.forEach(function (player) {
    if (player.name !== "") {
      playersList.push(player.getId());
    }
  });

  var message = JSON.stringify({
    action: "players_list",
    data: playersList,
  });

  Players.forEach(function (player) {
    player.connection.sendUTF(message);
  });
}