import BasicCanvas from './basic_canvas.js';
import Human from './human.js';
import Bot from './bot.js';
import Card from './card.js';
/* Images */

export default class Room extends BasicCanvas {
  constructor(name) {
    super(0, 0, global.uno_game_w, global.uno_game_h/10);

    this._name = name;
    this._players = [];
    this._cards = [];
    this._used_cards = [];

    // Fill room name
    this._ctx.font = Math.floor(this._h/3) + "px Arial";
    this._ctx.fillText(name, 10, 50);
  }

  addHuman(name) {
    this._players.push( new Human(name, this._players.length) );
    console.log(this._players);
  }

  addBot() {
    this._players.push( new Bot('bot', this._players.length) );
    console.log(this._players);
  }

  initCards() {
    console.log('Init')
    const index_arr = [...Array(108).keys()];
    let cnt = 0;
    for (let num=0; num<14; num++) {
      for (let color_n=0; color_n<8; color_n++) {
        if ( (num === 0) && (color_n >= 4) ) { // Skip blank card
          continue;
        }
        if ( (num === 13) && (color_n >= 4) ) { // +4 cards
          num = 14;
        }
        const card_index = index_arr.splice(Math.floor( Math.random() * index_arr.length), 1)[0];
        this._cards[ card_index ] = new Card(global.uno_game_w*6/16+card_index, global.uno_game_h/2, num, color_n%4);
        cnt++;
      }
    }
    for (let i=0; i<this._cards.length; i++) {
      this._cards[i].refresh();
    }
    console.log(this._cards);
  }

  dealCards() {
    console.log('Deal cards')
    this._players.forEach( (player) => {
      for (let i=0; i<7; i++) {
        player.addCard( this._cards.pop() );
      }
    });
    console.log(this._players);
  }

  async startGame() {
    console.log('Game start');

    this._turn_count = 0;

    await( this.changeTopCard( this._cards.pop() ) );

    await( this._current_player = this._players[0] );

    if (this._current_player.type === 'bot') {
      this.botPlay();
    } else {
      this.humanTurn();
    }

    //  if (player.isEmpty()) {
    //    console.log('player: ' + player.name + ' has no card left. Game end');
    //    break
    //  }
  }

  async processPlay() {
    await( this._current_player.refreshCards() );

    this._turn_count++;
    this._current_player = this.getNextPlayer();
    if (this._current_player.type === 'human') {
      this.humanTurn();
    } else {
      this.botPlay();
    }
  }

  async botPlay() {
    console.log('Turn count: ' + this._turn_count + ', current player: ' + this._current_player.name);
    await new Promise(resolve => setTimeout(resolve, 1000));

    const card = await( this._current_player.playCard(this._top_card) );
    if (card) {
      console.log('played card num: ' + card.num + ', color: ' + card.color_n);
      this.changeTopCard(card);
    } else {
      const card = this._cards.pop();
      console.log('drawed card num: ' + card.num + ', color: ' + card.color_n);
      this._current_player.addCard(card);
    }

    this.processPlay();
  }

  humanTurn() {
    console.log('Turn count: ' + this._turn_count + ', current player: ' + this._current_player.name);

    this._current_player.cards.forEach( (card) => {
      card.canvas.addEventListener('click', () => {
        console.log('played card num: ' + card.num + ', color: ' + card.color_n);

        // Remove event listener
        this._current_player.cards.forEach( (card) => {
          card.resetEventListener();
        });

        this.changeTopCard(card);

        this._current_player.removeCard(card);

        this.processPlay();
      });
    });

  }

  getNextPlayer() {
    let current_player_id = this._current_player.id;
    if (this._reverse) {
      if (current_player_id === 0) {
        current_player_id = this._players.length - 1;
      } else {
        current_player_id--;
      }
    } else {
      if (current_player_id === this._players.length-1) {
        current_player_id = 0;
      } else {
        current_player_id++;
      }
    }
    return this._players[current_player_id];
  }

  changeTopCard(card) {
    if (this._top_card) {
      this._used_cards.push(this._top_card);
    }
    this._top_card = card;
    this._top_card.drawImageFront(global.uno_game_w*8/16+this._turn_count, global.uno_game_h/2);
    this._top_card.refresh();
  }

}