import { _decorator, Component, Node, Button, Label, find, UITransform, Sprite, Color, tween, Tween, Prefab, instantiate } from 'cc';
import { LevelSessionManager } from '../../Core/LevelSessionManager';
import { BallController } from '../BallController';
import { BlockManager } from '../BlockManager';
import { GameStartMove } from '../../Animations/GameStartMove';

import { BlockTag } from './BlockTag';
import { SkillManager } from '../SkillSelection/SkillManager';

import EventBus, { GameEvents } from '../../Core/EventBus';
const { ccclass, property } = _decorator;

@ccclass('GameBlockSelection')
export class GameBlockSelection extends Component {
    
    @property({
        type: Node,
        tooltip: '拖拽BlockSelectionUI/diban/ann001按钮节点到这里'
    })
    public addBallButton: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽BlockSelectionUI/diban/ann002按钮节点到这里'
    })
    public addCoinButton: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽BlockSelectionUI/diban/ann003按钮节点到这里'
    })
    public refreshButton: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽Canvas-001/TopArea/CoinNode/CoinLabel节点到这里'
    })
    public coinLabelNode: Node = null;

    @property({
        type: Prefab,
        tooltip: '拖拽Toast预制体到这里'
    })
    public toastPrefab: Prefab = null;

    @property({
        type: Node,
        tooltip: '拖拽Canvas/GameLevelUI/BallController节点到这里'
    })
    public ballControllerNode: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽Canvas/GameLevelUI/BlockController节点到这里'
    })
    public blockManagerNode: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽Canvas/Camera节点到这里'
    })
    public cameraNode: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽Canvas/GameLevelUI/GameArea/GridContainer节点到这里'
    })
    public gridContainer: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽confirm按钮节点到这里'
    })
    public confirmButton: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽BlockSelectionUI根节点到这里'
    })
    public blockSelectionUINode: Node = null;

    @property({
        type: Node,
        tooltip: '拖拽BlockSelectionUI/diban节点到这里'
    })
    public dibanNode: Node = null;

    // 按钮费用配置
    private readonly ADD_BALL_COST = 80;
    private readonly ADD_COIN_AMOUNT = 80;
    private readonly REFRESH_COST = 5;

    private session: LevelSessionManager = null;
    private ballController: BallController = null;
    private blockManager: BlockManager = null;
    private gameStartMove: GameStartMove = null;

    // 回调函数，用于通知GameManager
    public onConfirmCallback: () => void = null;

    start() {
        console.log('GameBlockSelection.start() 开始初始化');
        
        // 获取管理器实例
        this.session = LevelSessionManager.inst;
        
        // 获取BallController
        if (this.ballControllerNode) {
            this.ballController = this.ballControllerNode.getComponent(BallController);
        } else {
            console.warn('BallController节点未绑定，请在Inspector中拖拽Canvas/GameLevelUI/BallController节点');
        }

        // 获取BlockManager
        if (this.blockManagerNode) {
            this.blockManager = this.blockManagerNode.getComponent(BlockManager);
        } else {
            console.warn('BlockManager节点未绑定，请在Inspector中拖拽Canvas/GameLevelUI/BlockController节点');
        }

        // 获取GameStartMove组件
        if (this.cameraNode) {
            this.gameStartMove = this.cameraNode.getComponent(GameStartMove);
            console.log('GameStartMove组件获取结果:', !!this.gameStartMove);
            
            // 如果GameStartMove存在，设置BlockSelectionUI和diban引用，并更新原始位置
            if (this.gameStartMove && this.blockSelectionUINode && this.dibanNode) {
                this.gameStartMove.blockSelectionUI = this.blockSelectionUINode;
                this.gameStartMove.dibanNode = this.dibanNode;
                this.gameStartMove.updateDibanOriginalPosition();
                
                console.log('GameStartMove引用设置完成:', {
                    blockSelectionUISet: !!this.gameStartMove.blockSelectionUI,
                    dibanNodeSet: !!this.gameStartMove.dibanNode,
                    blockSelectionUINodeName: this.blockSelectionUINode.name,
                    dibanNodeName: this.dibanNode.name
                });
            } else {
                console.warn('GameStartMove引用设置失败:', {
                    gameStartMove: !!this.gameStartMove,
                    blockSelectionUINode: !!this.blockSelectionUINode,
                    dibanNode: !!this.dibanNode
                });
            }
        } else {
            console.warn('Camera节点未绑定，请在Inspector中拖拽Canvas/Camera节点');
        }

        // 如果没有指定coinLabelNode，尝试找到它
        if (!this.coinLabelNode) {
            this.coinLabelNode = find('Canvas-001/TopArea/CoinNode/CoinLabel');
        }

        // 绑定按钮事件
        this.bindButtonEvents();
        
        // 设置事件监听器
        this.setupEventListeners();
        
        console.log('GameBlockSelection.start() 初始化完成');
    }

    // 设置事件监听器
    private setupEventListeners() {
        const eventBus = EventBus.getInstance();
        
        // 监听重置方块选择事件
        eventBus.on(GameEvents.RESET_BLOCK_SELECTION, this.onResetBlockSelectionEvent, this);
    }
    
    // 处理重置方块选择事件
    private onResetBlockSelectionEvent() {
        console.log('[GameBlockSelection] 接收到重置方块选择事件');
        this.resetSelection();
    }
    
    // 绑定按钮事件
    private bindButtonEvents() {
        // 绑定新增小球按钮
        if (this.addBallButton) {
            const btn = this.addBallButton.getComponent(Button);
            if (btn) {
                this.addBallButton.on(Button.EventType.CLICK, this.onAddBallClicked, this);
            } else {
                this.addBallButton.on(Node.EventType.TOUCH_END, this.onAddBallClicked, this);
            }
        }

        // 绑定增加金币按钮
        if (this.addCoinButton) {
            const btn = this.addCoinButton.getComponent(Button);
            if (btn) {
                this.addCoinButton.on(Button.EventType.CLICK, this.onAddCoinClicked, this);
            } else {
                this.addCoinButton.on(Node.EventType.TOUCH_END, this.onAddCoinClicked, this);
            }
        }

        // 绑定刷新方块按钮
        if (this.refreshButton) {
            const btn = this.refreshButton.getComponent(Button);
            if (btn) {
                this.refreshButton.on(Button.EventType.CLICK, this.onRefreshClicked, this);
            } else {
                this.refreshButton.on(Node.EventType.TOUCH_END, this.onRefreshClicked, this);
            }
        }

        // 绑定确认按钮
        if (this.confirmButton) {
            const btn = this.confirmButton.getComponent(Button);
            if (btn) {
                this.confirmButton.on(Button.EventType.CLICK, this.onConfirmButtonClicked, this);
            } else {
                this.confirmButton.on(Node.EventType.TOUCH_END, this.onConfirmButtonClicked, this);
            }
        }
    }

    // 新增小球按钮点击
    private onAddBallClicked() {
        // 应用便宜技能效果计算实际费用
        const actualCost = this.getActualCost(this.ADD_BALL_COST);
        
        if (!this.canSpendCoins(actualCost)) {
            this.showInsufficientCoinsUI();
            return;
        }

        // 扣除金币
        if (this.session.spendCoins(actualCost)) {
            this.updateCoinDisplay();
            
            // 通过事件系统创建新的小球
            const eventBus = EventBus.getInstance();
            eventBus.emit(GameEvents.BALL_CREATE_ADDITIONAL);
            console.log(`新增小球成功，扣除${actualCost}金币`);
        }
    }

    // 增加金币按钮点击
    private onAddCoinClicked() {
        // 应用便宜技能效果计算实际费用
        const actualCost = this.getActualCost(this.ADD_COIN_AMOUNT);
        
        if (!this.canSpendCoins(actualCost)) {
            this.showInsufficientCoinsUI();
            return;
        }

        // 扣除金币
        if (this.session.spendCoins(actualCost)) {
            this.updateCoinDisplay();
            
            // 添加金币（这里可以根据需要调整添加的金币数量）
            const coinsToAdd = 100; // 可以根据需要调整
            this.session.addCoins(coinsToAdd);
            console.log(`花费${actualCost}金币，获得${coinsToAdd}金币`);
            
            // 更新显示
            this.updateCoinDisplay();
        }
    }

    // 刷新方块按钮点击
    private onRefreshClicked() {
        // 应用便宜技能效果计算实际费用
        const actualCost = this.getActualCost(this.REFRESH_COST);
        
        if (!this.canSpendCoins(actualCost)) {
            this.showInsufficientCoinsUI();
            return;
        }

        // 扣除金币
        if (this.session.spendCoins(actualCost)) {
            this.updateCoinDisplay();
            
            // 刷新方块
            if (this.blockManager) {
                // 找到PlacedBlocks容器
                const placedBlocksContainer = find('Canvas/GameLevelUI/PlacedBlocks');
                if (placedBlocksContainer) {
                    // 移除已放置方块的标签
                    BlockTag.removeTagsInContainer(placedBlocksContainer);
                }
                
                // 刷新方块
                this.blockManager.refreshBlocks();
                console.log(`刷新方块成功，扣除${actualCost}金币`);
            } else {
                console.error('找不到BlockManager，无法刷新方块');
            }
        }
    }

    // 确认按钮点击（从GameManager迁移的onConfirmButtonClicked）
    public onConfirmButtonClicked() {
        // 检查是否有上阵方块
        const hasBlocks = this.hasPlacedBlocks();
        console.log(`[GameBlockSelection] 检查上阵方块: ${hasBlocks ? '有' : '无'}`);
        
        if (!hasBlocks) {
            this.showNoPlacedBlocksToast();
            return;
        }
        
        // 保存已放置的方块
        this.preservePlacedBlocks();

        // 先回调通知GameManager，让它处理波次逻辑
        if (this.onConfirmCallback) {
            this.onConfirmCallback();
        }
        
        // 然后隐藏UI并恢复游戏
        this.hideBlockSelection();
    }

    // 保存已放置的方块（从GameManager迁移）
    private preservePlacedBlocks() {
        if (this.blockManager) {
            this.blockManager.onGameStart();
        }
    }

    // 检查是否有足够金币
    private canSpendCoins(amount: number): boolean {
        return this.session.getCoins() >= amount;
    }

    // 计算应用便宜技能效果后的实际费用
    private getActualCost(baseCost: number): number {
        const skillManager = SkillManager.getInstance();
        if (skillManager) {
            const cheaperSkillLevel = skillManager.getSkillLevel('cheaper_units');
            return Math.ceil(SkillManager.calculateCheaperUnitsPrice(baseCost, cheaperSkillLevel));
        }
        return baseCost;
    }

    // 更新金币显示
    private updateCoinDisplay() {
        if (this.coinLabelNode) {
            const label = this.coinLabelNode.getComponent(Label);
            if (label) {
                label.string = this.session.getCoins().toString();
            }
        }
    }

    // 显示金币不足UI
    private showInsufficientCoinsUI() {
        if (!this.toastPrefab) {
            console.error('Toast预制体未绑定，请在Inspector中拖拽Toast预制体');
            return;
        }

        // 实例化Toast预制体
        const toastNode = instantiate(this.toastPrefab);
        
        // 设置Toast的文本为"金币不足！"
        const labelNode = toastNode.getChildByName('label');
        if (labelNode) {
            const label = labelNode.getComponent(Label);
            if (label) {
                label.string = '金币不足！';
            }
        }
        
        // 将Toast添加到Canvas下
        const canvas = find('Canvas');
        if (canvas) {
            canvas.addChild(toastNode);
        }

        // 3秒后自动销毁Toast
        this.scheduleOnce(() => {
            if (toastNode && toastNode.isValid) {
                toastNode.destroy();
            }
        }, 3.0);

        console.log('金币不足！');
    }

    // === 公共方法：供GameManager调用 ===

    // 显示方块选择UI（用于游戏开始或下一波）
    public showBlockSelection(isNextWave: boolean = false) {
        // 通过事件系统暂停游戏
        const eventBus = EventBus.getInstance();
        eventBus.emit(GameEvents.GAME_PAUSE);
        console.log('[GameBlockSelection] 显示方块选择UI，确保游戏暂停');
        
        // 首先显示UI节点
        this.node.active = true;
        
        if (this.gridContainer) {
            this.gridContainer.active = true;
        }

        // 如果有BlockSelectionUI节点，确保它可见
        if (this.blockSelectionUINode) {
            this.blockSelectionUINode.active = true;
        }

        // 每次显示方块选择UI时，生成新的随机方块
        if (this.blockManager) {
            this.blockManager.refreshBlocks();
            console.log('[GameBlockSelection] 生成新的随机方块');
        } else {
            console.warn('[GameBlockSelection] BlockManager未找到，无法生成随机方块');
        }

        // 播放BlockSelectionUI出现动画
        this.playShowAnimation();

        // 派发事件
        EventBus.getInstance().emit(GameEvents.BLOCK_SELECTION_OPEN);

        console.log(`[GameBlockSelection] ${isNextWave ? '显示下一波方块选择UI' : '显示游戏开始方块选择UI'}`);
    }

    // 隐藏方块选择UI
    public hideBlockSelection() {
        // 播放隐藏动画，动画完成后隐藏UI
        this.playHideAnimation(() => {
            this.node.active = false;
            
            // 派发事件
            EventBus.getInstance().emit(GameEvents.BLOCK_SELECTION_CLOSE);
            
            // 发送游戏开始事件，确保GamePause正确设置isInGameMode状态
            console.log('[GameBlockSelection] 隐藏方块选择UI、发送游戏开始事件');
            EventBus.getInstance().emit(GameEvents.GAME_START);
            
            // 通过事件系统恢复游戏状态
            console.log('[GameBlockSelection] 恢复游戏状态');
            EventBus.getInstance().emit(GameEvents.GAME_RESUME);
            
            // 移除这里的波次提示调用，让GameManager统一控制波次提示的显示时机
            // 显示波次提示Toast并开始敌人生成
            // const enemyController = EnemyController.getInstance();
            // if (enemyController) {
            //     enemyController.showStartWavePromptUI(2); // 显示2秒Toast提示
            // }
        });
    }

    // 播放显示动画
    private playShowAnimation() {
        console.log('播放显示动画playShowAnimation');
        if (this.gameStartMove && this.blockSelectionUINode && this.dibanNode) {
            // 设置GameStartMove的blockSelectionUI和dibanNode引用
            this.gameStartMove.blockSelectionUI = this.blockSelectionUINode;
            this.gameStartMove.dibanNode = this.dibanNode;
            
            // 使用GameStartMove的进入方块选择模式动画
            this.gameStartMove.enterBlockSelectionMode(300, 0.3);
            console.log('进入方块选择模式动画已启动');
        }
    }

    // 播放隐藏动画
    private playHideAnimation(onComplete?: () => void) {
        console.log('播放隐藏动画playHideAnimation');
        console.log('GameBlockSelection 引用检查:', {
            gameStartMove: !!this.gameStartMove,
            blockSelectionUINode: !!this.blockSelectionUINode,
            dibanNode: !!this.dibanNode,
            blockSelectionUINodeName: this.blockSelectionUINode?.name,
            dibanNodeName: this.dibanNode?.name
        });
        
        if (this.gameStartMove && this.blockSelectionUINode && this.dibanNode) {
            // 设置GameStartMove的blockSelectionUI和dibanNode引用
            this.gameStartMove.blockSelectionUI = this.blockSelectionUINode;
            this.gameStartMove.dibanNode = this.dibanNode;
            
            console.log('GameStartMove 引用设置后检查:', {
                gameStartMoveBlockSelectionUI: !!this.gameStartMove.blockSelectionUI,
                gameStartMoveDibanNode: !!this.gameStartMove.dibanNode
            });
            
            // 使用GameStartMove的退出方块选择模式动画
            this.gameStartMove.exitBlockSelectionMode(300, 0.3);
            console.log('退出方块选择模式动画已启动');
            
            // 由于slideDibanDownAndHide会自动隐藏blockSelectionUI和重置位置，我们需要在动画完成后执行回调
            if (onComplete) {
                this.scheduleOnce(() => {
                    onComplete();
                }, 0.3); // 与动画时长一致
            }
        } else {
            console.log('GameBlockSelection 条件检查失败，无法播放动画');
            if (onComplete) {
                // 如果没有动画组件，直接执行回调
                onComplete();
            }
        }
    }

    // 设置确认回调
    public setConfirmCallback(callback: () => void) {
        this.onConfirmCallback = callback;
    }

    // 重置方块选择状态
    public resetSelection() {
        console.log('[GameBlockSelection] 重置方块选择状态');
        
        // 重置BlockManager状态
        if (this.blockManager) {
            this.blockManager.onGameReset();
            console.log('[GameBlockSelection] BlockManager状态已重置');
        }
        
        // 清理所有方块标签
        BlockTag.clearAllTags();
        console.log('[GameBlockSelection] 方块标签已清理');
        
        // 更新金币显示
        this.updateCoinDisplay();
        console.log('[GameBlockSelection] 金币显示已更新');
    }

    // 检查是否有上阵方块
    private hasPlacedBlocks(): boolean {
        // 优先使用BlockManager的方法检查
        if (this.blockManager) {
            return this.blockManager.hasPlacedBlocks();
        }
        
        // 备用方案：直接检查PlacedBlocks容器
        const placedBlocksContainer = find('Canvas/GameLevelUI/PlacedBlocks');
        if (!placedBlocksContainer) {
            console.warn('找不到PlacedBlocks容器');
            return false;
        }
        
        // 检查容器中是否有子节点（方块）
        return placedBlocksContainer.children.length > 0;
    }

    // 显示没有上阵方块的Toast提示
    private showNoPlacedBlocksToast() {
        console.log('[GameBlockSelection] 开始显示Toast提示');
        
        if (!this.toastPrefab) {
            console.error('[GameBlockSelection] Toast预制体未绑定，请在Inspector中拖拽Toast预制体');
            return;
        }
        console.log('[GameBlockSelection] Toast预制体已绑定');

        // 实例化Toast预制体
        const toastNode = instantiate(this.toastPrefab);
        console.log('[GameBlockSelection] Toast节点已实例化:', toastNode.name);
        
        // 设置Toast的文本为"请至少上阵一个植物！"
        const labelNode = toastNode.getChildByName('label');
        console.log('[GameBlockSelection] 查找label子节点:', !!labelNode);
        if (labelNode) {
            const label = labelNode.getComponent(Label);
            console.log('[GameBlockSelection] 获取Label组件:', !!label);
            if (label) {
                label.string = '请至少上阵一个植物！';
            } else {
                console.error('[GameBlockSelection] label节点没有Label组件');
            }
        } else {
            console.error('[GameBlockSelection] 找不到名为"label"的子节点');
        }
        
        // 将Toast添加到Canvas下
        const canvas = find('Canvas');
        if (canvas) {
            canvas.addChild(toastNode);
        } else {
            console.error('[GameBlockSelection] 找不到Canvas节点');
            return;
        }

        // 3秒后自动销毁Toast
        this.scheduleOnce(() => {
            if (toastNode && toastNode.isValid) {
                toastNode.destroy();
            } else {
                console.warn('[GameBlockSelection] Toast节点无效，无法销毁');
            }
        }, 3.0);
        console.log('[GameBlockSelection] 请至少上阵一个植物！');
    }
    
    onDestroy() {
        // 清理事件监听
        const eventBus = EventBus.getInstance();
        eventBus.off(GameEvents.RESET_BLOCK_SELECTION, this.onResetBlockSelectionEvent, this);
    }
}