import { _decorator, Component, Node, Vec3, RigidBody2D, Collider2D, Contact2DType, IPhysics2DContact, Sprite, find, Prefab, instantiate } from 'cc';
import { BundleLoader } from '../../Core/BundleLoader';
import { Audio } from '../../AudioManager/AudioManager';
import EventBus, { GameEvents } from '../../Core/EventBus';
import { EnemyProjectileInstance } from './EnemyProjectileInstance';

const { ccclass, property } = _decorator;

/**
 * 敌人抛掷物管理器
 * 负责管理敌人发射的抛掷物的创建和配置
 * 挂载到Canvas/GameLevelUI/EnemyController上使用
 */
@ccclass('EnemyProjectile')
export class EnemyProjectile extends Component {
    
    @property(Prefab)
    public projectilePrefab: Prefab = null;
    
    onLoad() {
        console.log('[EnemyProjectile] 敌人抛掷物管理器已加载');
    }
    
    /**
     * 创建抛掷物
     * @param config 抛掷物配置
     */
    public createProjectile(config: {
        damage: number;
        speed: number;
        direction: Vec3;
        projectileType: string;
        startPosition: Vec3;
    }): Node | null {
        console.log('[EnemyProjectile] 开始创建抛掷物，配置:', config);
        
        if (!this.projectilePrefab) {
            console.error('[EnemyProjectile] 抛掷物预制体未设置');
            return null;
        }
        
        console.log('[EnemyProjectile] 预制体已设置，开始实例化');
        
        // 实例化预制体
        const projectileNode = instantiate(this.projectilePrefab);
        if (!projectileNode) {
            console.error('[EnemyProjectile] 创建抛掷物节点失败');
            return null;
        }
        
        console.log('[EnemyProjectile] 抛掷物节点创建成功，节点名称:', projectileNode.name);
        
        // 获取抛掷物组件
        const projectileComponent = projectileNode.getComponent(EnemyProjectileInstance);
        if (!projectileComponent) {
            console.error('[EnemyProjectile] 预制体中未找到EnemyProjectileInstance组件');
            projectileNode.destroy();
            return null;
        }
        
        console.log('[EnemyProjectile] 准备添加到Canvas并设置位置');
        
        // 添加到Canvas
        const canvas = find('Canvas');
        if (canvas) {
            // 先添加到Canvas，然后设置世界坐标
            canvas.addChild(projectileNode);
            
            // 确保在Canvas坐标系下正确设置位置
            projectileNode.setWorldPosition(config.startPosition);
            
            console.log('[EnemyProjectile] 已添加到Canvas并设置位置，开始初始化');
            
            // 初始化抛掷物（此时位置已正确，避免弧线弹道朝错方向）
            projectileComponent.init(config);
            
            console.log(`[EnemyProjectile] 创建抛掷物成功: 类型=${config.projectileType}, 伤害=${config.damage}, 速度=${config.speed}`);
            console.log('[EnemyProjectile] 抛掷物世界坐标:', projectileNode.worldPosition);
            console.log('[EnemyProjectile] 抛掷物本地坐标:', projectileNode.position);
        } else {
            console.error('[EnemyProjectile] 未找到Canvas节点');
            projectileNode.destroy();
            return null;
        }
        
        return projectileNode;
    }
}