const service = require("../../services/game-service");
const { GAME_MODES } = require("../../utils/constants");

Page({
  data: {
    code: "",
    room: null,
    modeName: "",
    isHost: false,
    showStartButton: false,
    meReady: false,
    canStart: false,
    startHint: "",
    errorMessage: "",
    starting: false
  },

  onLoad(options) {
    this.setData({ code: options.code || "" });
    this.loadRoom(true);
  },

  onShow() {
    if (this.data.code) this.loadRoom(false);
  },

  onPullDownRefresh() {
    this.loadRoom(false);
    wx.stopPullDownRefresh();
  },

  loadRoom(addBots) {
    let room = service.getRoom(this.data.code);
    if (!room) {
      this.setData({ room: null, errorMessage: "房间不存在或本地数据已被清理" });
      return;
    }
    if (addBots && room.players.length < Math.min(6, room.settings.maxPlayers)) {
      room = service.addDemoPlayers(
        room.code,
        Math.min(6, room.settings.maxPlayers)
      );
    }
    if (room.status !== "waiting") {
      const target = room.status === "finished" ? "result" : "game";
      wx.redirectTo({
        url: `/pages/${target}/${target}?code=${room.code}`
      });
      return;
    }

    const me = room.players.find((player) => player.id === service.USER_ID);
    const isHost = room.hostId === service.USER_ID;
    const canOperate = isHost || room.code === "731204";
    const enoughPlayers = room.players.length >= 4;
    const seekersValid = room.settings.seekerCount < room.players.length;
    const everyoneReady = room.players.every((player) => player.ready);
    let startHint = "分配身份并开始";
    if (!enoughPlayers) startHint = "至少需要 4 人";
    else if (!seekersValid) startHint = "寻找者人数过多";
    else if (!everyoneReady) startHint = "等待所有玩家准备";
    this.setData({
      room,
      errorMessage: "",
      modeName: GAME_MODES[room.settings.mode].name,
      isHost,
      showStartButton: canOperate,
      meReady: me ? me.ready : false,
      canStart: canOperate && enoughPlayers && seekersValid && everyoneReady,
      startHint
    });
  },

  toggleReady() {
    try {
      service.toggleReady(this.data.code);
      wx.vibrateShort({ type: "light" });
      this.loadRoom(false);
    } catch (error) {
      wx.showToast({ title: error.message, icon: "none" });
    }
  },

  startGame() {
    if (this.data.starting) return;
    this.setData({ starting: true });
    try {
      service.startGame(this.data.code);
      wx.redirectTo({
        url: `/pages/game/game?code=${this.data.code}`
      });
    } catch (error) {
      this.setData({ starting: false });
      wx.showToast({ title: error.message, icon: "none" });
    }
  },

  copyCode() {
    wx.setClipboardData({
      data: this.data.code,
      success: () => wx.showToast({ title: "房间码已复制", icon: "success" })
    });
  },

  backHome() {
    service.clearCurrentRoom();
    wx.reLaunch({ url: "/pages/home/home" });
  },

  onShareAppMessage() {
    return {
      title: `来加入「${this.data.room.name}」`,
      path: `/pages/join/join?code=${this.data.code}`
    };
  }
});