import { _decorator, Component, Node, Vec3, find, BoxCollider2D, RigidBody2D, Collider2D, Contact2DType, IPhysics2DContact, ERigidBody2DType } from 'cc';
import { sp } from 'cc';
import EventBus, { GameEvents } from '../../Core/EventBus';
import { EnemyAttackStateManager } from '../EnemyAttackStateManager';
import { GroundBurnAreaManager } from './GroundBurnAreaManager';
import { PhysicsManager } from '../../Core/PhysicsManager';
const { ccclass, property } = _decorator;
/**
 * 地面燃烧区域组件
 * 用于在地面创建固定范围的燃烧区域，对进入区域的敌人造成持续伤害
 */
@ccclass('GroundBurnArea')
export class GroundBurnArea extends Component {
    private _duration: number = 0;
    private _damage: number = 0;
    private _tickInterval: number = 0;

    private _isActive: boolean = false;
    private _burnEffectNode: Node | null = null; // 燃烧特效节点
    private _enemiesInArea: Set<Node> = new Set(); // 区域内的敌人
    private _damageTimer: number = 0; // 伤害计时器
    
    /**
     * 组件加载时的初始化
     */
    protected onLoad(): void {
        // 立即禁用RigidBody2D组件，防止在物理世界未准备好时激活
        const rigidBody = this.node.getComponent(RigidBody2D);
        if (rigidBody) {
            rigidBody.enabled = false;
        }
        
        // 也禁用BoxCollider2D组件，确保完全避免物理系统访问
        const collider = this.node.getComponent(BoxCollider2D);
        if (collider) {
            collider.enabled = false;
        }
    }

    /**
     * 初始化地面燃烧区域
     * @param position 燃烧区域位置
     * @param duration 持续时间（秒）
     * @param damage 每次伤害值
     * @param tickInterval 伤害间隔（秒）
     */
    public initGroundBurnArea(position: Vec3, duration: number, damage: number, tickInterval: number): void {
        this._duration = duration;
        this._damage = damage;
        this._tickInterval = tickInterval;
        this._isActive = true;
        this._damageTimer = 0;
        
        // 设置节点位置
        this.node.setWorldPosition(position);
        
        // 获取预制体中的火焰特效节点
        this.setupFlameEffect();
        
        // 先禁用RigidBody2D组件，避免在物理世界未准备好时激活
        const rigidBody = this.node.getComponent(RigidBody2D);
        if (rigidBody) {
            rigidBody.enabled = false;
        }
        
        // 设置碰撞器
        this.setupCollider();
        
        console.log(`[GroundBurnArea] 初始化地面燃烧区域 - 位置: (${position.x.toFixed(1)}, ${position.y.toFixed(1)}), 持续时间: ${duration}秒, 伤害: ${damage}, 间隔: ${tickInterval}秒`);
        
        // 启动燃烧区域
        this.startBurnArea();
    }
    
    /**
     * 设置碰撞器
     */
    private setupCollider(): void {
        // 延迟设置碰撞器，确保物理系统已初始化
        this.scheduleOnce(() => {
            this.trySetupCollider();
        }, 0.2); // 增加延迟时间到0.2秒
    }

    private trySetupCollider(): void {
        // 检查物理系统是否已初始化
        const physicsManager = PhysicsManager.getInstance();
        if (!physicsManager) {
            console.warn('[GroundBurnArea] 物理系统未初始化，延迟重试');
            // 延迟重试
            this.scheduleOnce(() => {
                this.trySetupCollider();
            }, 0.1);
            return;
        }
        
        const physicsSystem = physicsManager.getSystem();
        if (!physicsSystem || !physicsSystem.enable) {
            console.warn('[GroundBurnArea] 物理系统未启用，延迟重试');
            // 延迟重试
            this.scheduleOnce(() => {
                this.trySetupCollider();
            }, 0.1);
            return;
        }
    
        // 获取碰撞器组件
        const collider = this.node.getComponent(BoxCollider2D);
        if (!collider) {
            console.error('[GroundBurnArea] 未找到 BoxCollider2D 组件');
            return;
        }

        // 重新启用碰撞器组件
        collider.enabled = true;

        // 获取刚体组件并确保启用碰撞监听
         const rigidBody = this.node.getComponent(RigidBody2D);
         if (rigidBody) {
             try {
                 rigidBody.type = ERigidBody2DType.Static;
                 rigidBody.enabledContactListener = true;
                 // 重新启用RigidBody2D组件
                 rigidBody.enabled = true;
             } catch (error) {
                 console.error('[GroundBurnArea] 设置刚体组件时出错:', error);
                 // 如果设置失败，再次延迟重试
                 this.scheduleOnce(() => {
                     this.trySetupCollider();
                 }, 0.1);
                 return;
             }
         }

        // 监听碰撞事件（移除之前的监听器避免重复）
        collider.off(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);
        collider.off(Contact2DType.END_CONTACT, this.onEndContact, this);
        collider.on(Contact2DType.BEGIN_CONTACT, this.onBeginContact, this);
        collider.on(Contact2DType.END_CONTACT, this.onEndContact, this);
        
        console.log(`[GroundBurnArea] 碰撞器设置完成，碰撞器启用: ${collider.enabled}, 刚体启用: ${rigidBody?.enabled}`);
        
        // 验证碰撞器设置
        if (!collider.enabled) {
            console.error('[GroundBurnArea] 碰撞器未启用！');
        }
        if (rigidBody && !rigidBody.enabled) {
            console.error('[GroundBurnArea] 刚体未启用！');
        }
        if (rigidBody && !rigidBody.enabledContactListener) {
            console.error('[GroundBurnArea] 刚体碰撞监听未启用！');
        }
    }
    
    /**
     * 敌人进入燃烧区域
     */
    private onBeginContact(selfCollider: Collider2D, otherCollider: Collider2D, contact: IPhysics2DContact | null): void {
        const enemyNode = otherCollider.node;
        
        console.log(`[GroundBurnArea] 碰撞检测 - 节点名称: ${enemyNode.name}, 父节点: ${enemyNode.parent?.name || 'null'}`);
        
        // 检查是否是敌人
        if (this.isEnemyNode(enemyNode)) {
            // 仅记录可攻击的敌人进入燃烧区域（隐身等状态不记录）
            const attackStateManager = EnemyAttackStateManager.getInstance();
            if (attackStateManager && !attackStateManager.isEnemyAttackable(enemyNode)) {
                console.log(`[GroundBurnArea] 敌人不可攻击（隐身等），不加入区域: ${enemyNode.name}`);
                return;
            }
            this._enemiesInArea.add(enemyNode);
            console.log(`[GroundBurnArea] 敌人进入燃烧区域: ${enemyNode.name}, 区域内敌人数量: ${this._enemiesInArea.size}`);
        } else {
            console.log(`[GroundBurnArea] 非敌人节点进入燃烧区域: ${enemyNode.name}`);
        }
    }
    
    /**
     * 敌人离开燃烧区域
     */
    private onEndContact(selfCollider: Collider2D, otherCollider: Collider2D, contact: IPhysics2DContact | null): void {
        const enemyNode = otherCollider.node;
        
        // 检查是否是敌人
        if (this.isEnemyNode(enemyNode)) {
            this._enemiesInArea.delete(enemyNode);
            console.log(`[GroundBurnArea] 敌人离开燃烧区域: ${enemyNode.name}, 区域内敌人数量: ${this._enemiesInArea.size}`);
        }
    }
    
    /**
     * 检查是否是敌人节点
     */
    private isEnemyNode(node: Node): boolean {
        if (!node || !node.name) {
            return false;
        }
        
        // 检查是否为EnemySprite子节点
        if (node.name === 'EnemySprite' && node.parent) {
            const hasEnemyComponent = node.parent.getComponent('EnemyInstance') !== null;
            console.log(`[GroundBurnArea] EnemySprite检测 - 节点: ${node.name}, 父节点: ${node.parent.name}, 有EnemyInstance组件: ${hasEnemyComponent}`);
            return hasEnemyComponent;
        }
        
        // 检查节点名称
        const nameCheck = (
            node.name.includes('Enemy') || 
            node.name.includes('enemy') ||
            node.name.includes('僵尸') ||
            node.name.includes('Zombie') ||
            node.name.includes('zombie')
        );
        
        // 检查父节点名称
        const parentCheck = (
            node.parent?.name === 'enemyContainer' ||
            node.parent?.name === 'EnemyContainer' ||
            node.parent?.name?.includes('enemy') ||
            node.parent?.name?.includes('Enemy')
        );
        
        // 检查是否有EnemyInstance组件
        const componentCheck = node.getComponent('EnemyInstance') !== null;
        
        const isEnemy = nameCheck || parentCheck || componentCheck;
        
        console.log(`[GroundBurnArea] 敌人检测 - 节点: ${node.name}, 父节点: ${node.parent?.name || 'null'}, 名称检查: ${nameCheck}, 父节点检查: ${parentCheck}, 组件检查: ${componentCheck}, 是敌人: ${isEnemy}`);
        
        return isEnemy;
    }
    
    /**
     * 启动燃烧区域
     */
    private startBurnArea(): void {
        if (!this._isActive) {
            return;
        }
        
        console.log(`[GroundBurnArea] 启动地面燃烧区域 - 持续时间: ${this._duration}秒`);
        
        // 启动更新循环
        this.schedule(this.updateBurnArea, 0.1); // 每0.1秒更新一次
        
        // 设置区域销毁定时器
        this.scheduleOnce(() => {
            this.destroyBurnArea();
        }, this._duration);
    }
    
    /**
     * 更新燃烧区域
     */
    private updateBurnArea(deltaTime: number): void {
        if (!this._isActive) {
            return;
        }
        
        // 更新伤害计时器
        this._damageTimer += deltaTime;
        
        // 检查是否到了造成伤害的时间
        if (this._damageTimer >= this._tickInterval) {
            console.log(`[GroundBurnArea] 燃烧区域伤害检查 - 区域内敌人数量: ${this._enemiesInArea.size}, 伤害值: ${this._damage}`);
            
            this.dealDamageToEnemiesInArea();
            this._damageTimer = 0;
        }
        
        // 清理无效的敌人节点
        this.cleanupInvalidEnemies();
    }
    
    /**
     * 对区域内的敌人造成伤害
     */
    private dealDamageToEnemiesInArea(): void {
        if (this._enemiesInArea.size === 0) {
            return;
        }
        
        console.log(`[GroundBurnArea] 对区域内 ${this._enemiesInArea.size} 个敌人造成燃烧伤害: ${this._damage}`);
        
        const eventBus = EventBus.getInstance();
        const attackStateManager = EnemyAttackStateManager.getInstance();
        
        // 对每个区域内的敌人造成伤害
        for (const enemyNode of this._enemiesInArea) {
            if (enemyNode && enemyNode.isValid) {
                // 检查敌人是否处于漂移状态
                const enemyInstance = enemyNode.getComponent('EnemyInstance') as any;
                if (enemyInstance && enemyInstance.isDrifting()) {
                    console.log(`[GroundBurnArea] 敌人 ${enemyNode.name} 处于漂移状态，跳过燃烧伤害`);
                    continue;
                }
                // 检查敌人是否可攻击（隐身等状态不可受伤害）
                if (attackStateManager && !attackStateManager.isEnemyAttackable(enemyNode)) {
                    console.log(`[GroundBurnArea] 敌人不可攻击，跳过燃烧伤害: ${enemyNode.name}`);
                    continue;
                }
                
                const damageData = {
                    enemyNode: enemyNode,
                    damage: this._damage,
                    isCritical: false,
                    source: 'GroundBurnArea'
                };
                
                eventBus.emit(GameEvents.APPLY_DAMAGE_TO_ENEMY, damageData);
            }
        }
    }
    
    /**
     * 清理无效的敌人节点
     */
    private cleanupInvalidEnemies(): void {
        const invalidEnemies: Node[] = [];
        
        for (const enemyNode of this._enemiesInArea) {
            if (!enemyNode || !enemyNode.isValid) {
                invalidEnemies.push(enemyNode);
            }
        }
        
        // 移除无效的敌人
        for (const invalidEnemy of invalidEnemies) {
            this._enemiesInArea.delete(invalidEnemy);
        }
    }
    
    /**
     * 设置火焰特效
     */
    private setupFlameEffect(): void {
        // 查找预制体中的 FlameEffect 子节点
        const flameEffectNode = this.node.getChildByName('FlameEffect');
        if (flameEffectNode) {
            this._burnEffectNode = flameEffectNode;
            // 启动火焰特效动画
            const skeleton = flameEffectNode.getComponent(sp.Skeleton);
            if (skeleton) {
                skeleton.setAnimation(0, 'animation', true);
                console.log('[GroundBurnArea] 火焰特效节点已找到并开始播放动画');
            } else {
                console.warn('[GroundBurnArea] FlameEffect 节点缺少 sp.Skeleton 组件');
            }
        } else {
            console.warn('[GroundBurnArea] 未找到 FlameEffect 子节点，请检查预制体配置');
        }
    }
    
    /**
     * 设置燃烧特效节点
     */
    public setBurnEffectNode(effectNode: Node): void {
        this._burnEffectNode = effectNode;
    }
    

    
    /**
     * 销毁燃烧区域
     */
    public destroyBurnArea(): void {
        console.log(`[GroundBurnArea] 销毁地面燃烧区域`);
        
        this._isActive = false;
        this.unscheduleAllCallbacks();
        
        // 清空敌人列表
        this._enemiesInArea.clear();
        
        // 销毁燃烧特效节点
        if (this._burnEffectNode && this._burnEffectNode.isValid) {
            console.log(`[GroundBurnArea] 销毁燃烧特效节点`);
            this._burnEffectNode.destroy();
            this._burnEffectNode = null;
        }
        
        // 通知管理器移除此燃烧区域
        const manager = GroundBurnAreaManager.getInstance();
        if (manager) {
            manager.removeBurnArea(this.node);
        }
        
        // 销毁节点
        if (this.node && this.node.isValid) {
            this.node.destroy();
        }
    }
    
    /**
     * 获取燃烧区域是否激活
     */
    public isActive(): boolean {
        return this._isActive;
    }
    
    /**
     * 获取区域内敌人数量
     */
    public getEnemyCount(): number {
        return this._enemiesInArea.size;
    }
    
    /**
     * 组件销毁时清理资源
     */
    protected onDestroy(): void {
        this._isActive = false;
        this.unscheduleAllCallbacks();
        
        // 清空敌人列表
        this._enemiesInArea.clear();
        
        // 清理燃烧特效节点
        if (this._burnEffectNode && this._burnEffectNode.isValid) {
            console.log(`[GroundBurnArea] 组件销毁时清理燃烧特效节点`);
            this._burnEffectNode.destroy();
            this._burnEffectNode = null;
        }
        
        // 通知管理器移除此燃烧区域
        const manager = GroundBurnAreaManager.getInstance();
        if (manager) {
            manager.removeBurnArea(this.node);
        }
        
        console.log(`[GroundBurnArea] 地面燃烧区域组件已销毁`);
    }
}