import { _decorator, Component, Node, Animation, Label, director } from 'cc';
import { ScenePreloadManager } from 'db://assets/scripts/ScenePreloadManager';

const { ccclass, property } = _decorator;

enum GameState {
    Playing,
    Paused,
    GameOver
}

@ccclass('GameManager')
export class GameManager extends Component {
    @property({type: Animation})
    cameraAnim: Animation = null!;

    @property(Label)
    timerLabel: Label = null!;  // 倒计时文本显示

    @property(Node)
    guiNode: Node = null!;  // UI节点

    private gameState: GameState = GameState.Playing;
    private countdownDuration: number = 120; // 3分钟 = 180秒
    private countdownRemaining: number = 120;
    private isCountdownStarted: boolean = false;
    private startDelay: number = 6; // 开场动画结束后延迟1.5秒开始
    private isGameOver: boolean = false;

    start() {
        this.initGame();
    }

    private initGame() {
        // 初始化游戏状态
        this.gameState = GameState.Playing;
        this.countdownRemaining = this.countdownDuration;
        this.isCountdownStarted = false;
        this.isGameOver = false;
        
        // 初始化计时器显示
        this.updateTimerDisplay();
        
        this.scheduleOnce(() => {
            this.startCountdown();
        }, this.startDelay);
    }


    private startCountdown() {
        this.isCountdownStarted = true;
        this.countdownRemaining = this.countdownDuration;
        this.updateTimerDisplay();
        
        // 每秒更新一次
        this.schedule(this.updateCountdown, 1);
    }

    private updateCountdown() {
        if (!this.isCountdownStarted || this.gameState !== GameState.Playing) return;

        this.countdownRemaining--;
        this.updateTimerDisplay();

        if (this.countdownRemaining <= 0) {
            // 时间到，结束游戏
            this.unschedule(this.updateCountdown);
            this.setGameOver(false); // 时间到算失败
        }
    }

    private updateTimerDisplay() {
        if (!this.timerLabel) return;

        const minutes = Math.floor(this.countdownRemaining / 60);
        const seconds = this.countdownRemaining % 60;
        
        // 格式化为 "xx:xx"
        this.timerLabel.string = `${minutes < 10 ? '0' + minutes : minutes}:${seconds < 10 ? '0' + seconds : seconds}`;
    }

    public setGameOver(isWin: boolean) {
        if (this.isGameOver) return;
        
        this.isGameOver = true;
        this.isCountdownStarted = false;
        this.unschedule(this.updateCountdown);
        this.gameState = GameState.GameOver;
        
        // 这里可以添加游戏结算逻辑
        console.log(`游戏结束，${isWin ? '胜利' : '失败'}，剩余时间: ${this.countdownRemaining}秒`);
        
        // 这里可以添加显示结算界面的代码
    }

    // 可以添加其他游戏相关方法
    public pauseGame() {
        if (this.gameState === GameState.Playing) {
            this.gameState = GameState.Paused;
            this.unschedule(this.updateCountdown);
        }
    }

    public resumeGame() {
        if (this.gameState === GameState.Paused) {
            this.gameState = GameState.Playing;
            this.schedule(this.updateCountdown, 1);
        }
    }

    onDestroy() {
        // 清理定时器
        this.unscheduleAllCallbacks();
    }
}