// MainUIController.ts
import { _decorator, Component, Node, Button, Label, find } from 'cc';
import { SaveDataManager } from '../../LevelSystem/SaveDataManager';
import { GameManager } from '../../LevelSystem/GameManager';
import { GameStartMove } from '../../Animations/GameStartMove';
const { ccclass, property } = _decorator;

@ccclass('MainUIController')
export class MainUIController extends Component {
  /* 顶部资源 & 关卡 */
  @property(Node) moneyAddBtn: Node = null;          // 绿色 +
  @property(Node) diamondAddBtn: Node = null;        // 紫色 +
  @property(Node) moneyLabel: Node = null;           // 金币数字
  @property(Node) diamondLabel: Node = null;         // 钻石数字
  @property(Label) levelNumberLabel: Label = null;   // 第 X 关文本

  /* 奖励节点 */
  @property(Node) rewardMoneyNode: Node = null;      // 左金币奖励
  @property(Node) rewardDiamondNode: Node = null;    // 右钻石奖励

  /* 升级 */
  @property(Button) upgradeBtn: Button = null;       // 升级按钮
  @property(Node) upgradeCostLabel: Node = null;     // 消耗金币数字
  @property(Node) upgradeHpLabel: Node = null;       // "105>>1000"

  /* 主功能按钮 */
  @property(Node) battleBtn: Node = null;            // 战斗
  @property(Node) shopBtn: Node = null;              // 商店
  // 底栏按钮由 NavBarController 统一管理，这里不再需要引用
  @property(Node) topArea: Node = null;              // Canvas-001/TopArea

  private sdm: SaveDataManager = null;

  onLoad () {
    this.sdm = SaveDataManager.getInstance();
    this.sdm.initialize();

    this.bindButtons();
    this.refreshAll();

    // TopArea 默认隐藏，在点击战斗后再显示
    if (this.topArea) this.topArea.active = false;
  }



  /* 绑定按钮事件 */
  private bindButtons () {
    this.moneyAddBtn?.on(Button.EventType.CLICK, () => this.addCoins(100), this);
    this.diamondAddBtn?.on(Button.EventType.CLICK, () => this.addDiamonds(20), this);

    this.rewardMoneyNode?.on(Node.EventType.TOUCH_END, () => this.takeRewardCoins(), this);
    this.rewardDiamondNode?.on(Node.EventType.TOUCH_END, () => this.takeRewardDiamonds(), this);

    this.upgradeBtn?.node.on(Button.EventType.CLICK, this.upgradeWallHp, this);

    this.battleBtn?.on(Button.EventType.CLICK, this.onBattle, this);
    this.shopBtn?.on(Button.EventType.CLICK, this.onShop, this);

    // 底栏按钮已迁移至 NavBarController，无需在此脚本绑定
  }

  /* ================= 业务逻辑 ================= */
  private addCoins (v:number) { this.sdm.addCoins(v, 'ad'); this.refreshCurrency(); }
  private addDiamonds (v:number){ this.sdm.addDiamonds(v,'ad'); this.refreshCurrency(); }

  private takeRewardCoins () {
    const lbl = this.rewardMoneyNode?.getComponent(Label) || this.rewardMoneyNode?.getComponentInChildren(Label);
    if (!lbl) return;
    const amt = parseInt(lbl.string||'0');
    if (amt>0) { this.addCoins(amt); this.rewardMoneyNode.active = false; }
  }
  private takeRewardDiamonds () {
    const lbl = this.rewardDiamondNode?.getComponent(Label) || this.rewardDiamondNode?.getComponentInChildren(Label);
    if (!lbl) return;
    const amt = parseInt(lbl.string||'0');
    if (amt>0) { this.addDiamonds(amt); this.rewardDiamondNode.active = false; }
  }

  private upgradeWallHp () {
    const costLbl = this.upgradeCostLabel?.getComponent(Label);
    if (!costLbl) return;
    const cost = parseInt(costLbl.string || '0');
    if (!this.sdm.spendCoins(cost)) return; // 金币不足

    // 升级墙体
    const gmNode = find('Canvas/GameLevelUI/GameManager');
    const gm = gmNode?.getComponent(GameManager);
    if (!gm) return;

    const info = gm.upgradeWallLevel?.();
    if (!info) return;

    // 更新显示
    const hpLbl = this.upgradeHpLabel?.getComponent(Label);
    if (hpLbl) {
      hpLbl.string = `${info.currentHp}>>${info.nextHp}`;
    }

    this.refreshCurrency();
  }

  private onBattle () {
    // 显示 TopArea（拖拽引用），避免使用 find()
    if (this.topArea) this.topArea.active = true;

    // 若上一关已完成则自动+1
    const lvl = this.sdm.getCurrentLevel();
    if (this.sdm.isLevelCompleted(lvl)) {
      const pd = this.sdm.getPlayerData();
      pd.currentLevel = lvl + 1;
      this.sdm.savePlayerData();
    }
    this.refreshLevelNumber();

    // 切场景 UI
    const mainUI = find('Canvas/MainUI');
    const gameUI = find('Canvas/GameLevelUI');
    if (mainUI) mainUI.active = false;
    if (gameUI) gameUI.active = true;

    const gmNode = find('Canvas/GameLevelUI/GameManager');
    const gm = gmNode?.getComponent(GameManager);
    gm?.restartGame();
    gm?.loadCurrentLevelConfig();

 
    // 隐藏底部导航栏 NavBar
    const navBarNode = find('Canvas/NavBar');
    if (navBarNode) navBarNode.active = false;

    // Camera move down instantly for battle prep
    // 兼容 "Camera" 或 "Main Camera" 等命名
    const camNode = find('Canvas/Camera');
    const gsm = camNode?.getComponent(GameStartMove);
    gsm?.moveDownInstant();
  }

  private onShop () {
    const mainUI = find('Canvas/MainUI');
    const shopUI = find('Canvas/ShopUI');
    if (mainUI) mainUI.active = false;
    if (shopUI) shopUI.active = true;
  }

  /* ================= 刷新 ================= */
  private refreshCurrency () {
    const mLbl = this.moneyLabel?.getComponent(Label) || this.moneyLabel as unknown as Label;
    if (mLbl) mLbl.string = this.format(this.sdm.getCoins());
    const dLbl = this.diamondLabel?.getComponent(Label) || this.diamondLabel as unknown as Label;
    if (dLbl) dLbl.string = this.format(this.sdm.getDiamonds());
  }
  private refreshLevelNumber(){
    if (this.levelNumberLabel) this.levelNumberLabel.string = `第 ${this.sdm.getCurrentLevel()} 关`;
  }
  private refreshAll(){
    this.refreshCurrency();
    this.refreshLevelNumber();

    this.refreshUpgradeInfo();
  }

  /** 刷新升级信息显示 */
  private refreshUpgradeInfo () {
    const gmNode = find('Canvas/GameLevelUI/GameManager');
    const gm = gmNode?.getComponent(GameManager);
    const hpLbl   = this.upgradeHpLabel?.getComponent(Label);
    if (!gm || !hpLbl) return;

    const curHp = gm.getCurrentWallHealth?.() || 0;
    const nextHp = gm.getWallHealthByLevel?.(gm.getCurrentWallLevel?.() + 1) || curHp;
    hpLbl.string = `${curHp}>>${nextHp}`;
  }

  // 供外部（如 GameManager）调用的公共刷新接口
  public updateUI (): void {
    this.refreshAll();
  }
  
  /* =============== Util =============== */
  private format(n:number){ return n>=1000000? (n/1e6).toFixed(1)+'M' : n>=1000? (n/1e3).toFixed(1)+'K' : n.toString(); }
}