import { _decorator, Component, Node, Vec3, find, instantiate, Prefab, resources } from 'cc';
import { WeaponBullet, BulletInitData } from '../CombatSystem/WeaponBullet';

const { ccclass, property } = _decorator;

/**
 * 测试子弹尾迹效果的脚本
 */
@ccclass('TestPelletTrail')
export class TestPelletTrail extends Component {
    
    @property(Prefab)
    pelletPrefab: Prefab = null;
    
    private testInterval: number = 2; // 每2秒发射一次测试子弹
    private timer: number = 0;
    
    start() {
        // 如果没有设置预制体，尝试从resources加载
        if (!this.pelletPrefab) {
            this.loadPelletPrefab();
        }
    }
    
    update(deltaTime: number) {
        this.timer += deltaTime;
        
        if (this.timer >= this.testInterval && this.pelletPrefab) {
            this.timer = 0;
            this.fireTestBullet();
        }
    }
    
    private loadPelletPrefab() {
        resources.load('prefabs/Pellet', Prefab, (err, prefab) => {
            if (!err && prefab) {
                this.pelletPrefab = prefab;
                console.log('[TestPelletTrail] Pellet预制体加载成功');
            } else {
                console.warn('[TestPelletTrail] 无法加载Pellet预制体:', err);
            }
        });
    }
    
    private fireTestBullet() {
        if (!this.pelletPrefab) return;
        
        // 创建测试子弹初始化数据
        const initData: BulletInitData = {
            weaponId: 'pea_shooter', // 使用默认武器配置
            firePosition: new Vec3(0, 0, 0), // 从屏幕中心发射
            direction: new Vec3(1, 0.5, 0).normalize(), // 向右上方发射
            autoTarget: false
        };
        
        // 创建子弹实例
        const bulletNode = instantiate(this.pelletPrefab);
        
        // 添加到场景中
        const gameArea = find('Canvas/GameLevelUI/GameArea') || find('Canvas');
        if (gameArea) {
            gameArea.addChild(bulletNode);
        } else {
            this.node.addChild(bulletNode);
        }
        
        // 初始化子弹
        const weaponBullet = bulletNode.getComponent(WeaponBullet) || bulletNode.addComponent(WeaponBullet);
        weaponBullet.init(initData);
        
        console.log('[TestPelletTrail] 发射测试子弹，带白色尾迹效果');
    }
    
    /**
     * 手动触发测试子弹发射（可在编辑器中调用）
     */
    public fireTestBulletManual() {
        this.fireTestBullet();
    }
}