import { instantiate, Node, Prefab, Vec3 ,v3,resources,SpriteFrame,Sprite,SpriteAtlas, BoxCollider2D, NodePool, tween, Tween} from "cc";
import { oops } from "../../../../extensions/oops-plugin-framework/assets/core/Oops";
import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
import { smc } from "../common/SingletonModuleComp";
import { BoxSet, FacSet, FightSet, IndexSet } from "../common/config/GameSet";
import { HeroInfo } from "../common/config/heroSet";
import { HeroAttrsComp } from "./HeroAttrsComp";
import { HeroViewComp } from "./HeroViewComp";
import { MoveComp } from "./MoveComp";
/** 怪物实体：负责怪物对象池复用、属性初始化、入场动画与回收 */
@ecs.register(`Monster`)
export class Monster extends ecs.Entity {
    /** 怪物数据组件引用 */
    HeroModel!: HeroAttrsComp;
    /** 怪物表现组件引用 */
    HeroView!: HeroViewComp;
    /** 怪物移动组件引用 */
    MonMove!: MoveComp;
    /** 调试开关，控制生命周期日志输出 */
    private debugMode: boolean = false;

    /** 多键对象池：key 为 prefab 路径，value 为对应节点池 */
    static pools: Map<string, NodePool> = new Map();
    /** 单个路径的池容量上限 */
    static readonly MAX_POOL_SIZE: number = 12;
    /** 所有路径合计池容量上限 */
    static readonly MAX_POOL_TOTAL: number = 60;

    /** 计算当前所有对象池节点总量 */
    private static totalPoolSize(): number {
        let total = 0;
        this.pools.forEach((pool) => {
            total += pool.size();
        });
        return total;
    }

    /** 从指定路径对象池取可用节点，取不到返回 null */
    static getFromPool(path: string): Node | null {
        if (this.pools.has(path)) {
            const pool = this.pools.get(path)!;
            while (pool.size() > 0) {
                const node = pool.get();
                if (node && node.isValid) {
                    return node;
                }
            }
        }
        return null;
    }

    /** 节点回收到对象池，超上限则直接销毁 */
    static putToPool(path: string, node: Node) {
        if (!node || !node.isValid) return;
        if (!this.pools.has(path)) {
            this.pools.set(path, new NodePool());
        }
        const pool = this.pools.get(path)!;
        if (pool.size() >= this.MAX_POOL_SIZE || this.totalPoolSize() >= this.MAX_POOL_TOTAL) {
            node.destroy();
            return;
        }
        pool.put(node);
    }

    /** 清空所有对象池并销毁池内节点 */
    static clearPools() {
        this.pools.forEach((pool) => {
            while (pool.size() > 0) {
                const node = pool.get();
                if (node && node.isValid) {
                    node.destroy();
                }
            }
            pool.clear();
        });
        this.pools.clear();
    }

    /** 获取对象池统计信息，用于调试与容量监控 */
    static getPoolStats() {
        let total = 0;
        this.pools.forEach((pool) => {
            total += pool.size();
        });
        return {
            paths: this.pools.size,
            total,
            maxPerPath: this.MAX_POOL_SIZE,
            maxTotal: this.MAX_POOL_TOTAL
        };
    }

    /** 注册实体必需组件：移动 + 属性 */
    protected init() {
        this.addComponents<ecs.Comp>(
            MoveComp,
            HeroAttrsComp,
        );
    }

    /** 销毁实体：优先回收节点，然后释放组件 */
    destroy(): void {
        // 按英雄路径回收到对象池，提升高频刷怪性能
        const model = this.get(HeroAttrsComp);
        const view = this.get(HeroViewComp);
        if (model && view && view.node && view.node.isValid) {
             const path = "game/heros/" + HeroInfo[model.hero_uuid].path;
             Monster.putToPool(path, view.node);
        }
        
        // 手动移除组件，避免 ecs 引用滞留
        this.remove(HeroViewComp);
        this.remove(HeroAttrsComp);
        super.destroy();
    }

    /**
     * 加载并初始化怪物
     * 1) 优先对象池复用节点，减少实例化开销
     * 2) 初始化表现、属性、技能与阵营
     * 3) 播放下落入场并在落地后启用碰撞与移动
     */
    load(pos: Vec3 = Vec3.ZERO,scale:number = 1,uuid:number=1001, is_boss:boolean=false, dropToY:number = pos.y,mon_lv:number=1) {
        // 怪物默认朝左，表现缩放固定为负向
        scale=-1
        // 当前怪物尺寸固定，保留变量便于后续扩展
        let size=1
        var scene = smc.map.MapView.scene;
        // 根据配置读取怪物预制体路径
        var path =  "game/heros/"+HeroInfo[uuid].path;
        
        // 优先从对象池取节点，未命中时再实例化
        let node = Monster.getFromPool(path);
        if (!node) {
            var prefab: Prefab = oops.res.get(path, Prefab)!;
            node = instantiate(prefab);
        }

        // 统一挂到实体显示层 HERO 节点下
        node.parent = scene.entityLayer!.node!.getChildByName("HERO")!;
        var view = node.getComponent(HeroViewComp)!;
        const collider = node.getComponent(BoxCollider2D);
        // 入场期间关闭碰撞，防止下落时提前参与战斗
        if (collider) {
            collider.enabled = false;
        }
        
        node.setScale(size*node.scale.x,size*node.scale.y);
        node.setPosition(pos)
        const model = this.get(HeroAttrsComp);
        // 从配置表获取怪物静态数据
        let hero = HeroInfo[uuid];
        // 视图层参数：朝向与碰撞阵营
        view.scale = scale;
        view.box_group = BoxSet.MONSTER;
        // 模型层参数：身份、阵营、基础数值
        model.hero_uuid = uuid;
        model.hero_name = hero.name;
        model.hp = model.hp_max = hero.hp;
        model.ap = hero.ap;
        model.speed = hero.speed;
        model.type = hero.type;
        model.fac = FacSet.MON;
        // 标记是否 Boss，非 Boss 默认记作杂兵
        model.is_boss =is_boss
        if(!model.is_boss){
            model.is_kalami = true;
        }

        // 构建技能表并注入运行时冷却字段 ccd
        model.skills = {};
        for (const key in hero.skills) {
            const skill = hero.skills[key];
            if (!skill) continue;
            // 最终技能等级 = 初始技能等级 + 怪物等级增量，且下限为 0
            model.skills[skill.uuid] = { ...skill, lv: Math.max(0,skill.lv + mon_lv - 2), ccd: 0 };
        }
        // 缓存技能射程等派生数据，减少战斗帧内重复计算
        model.updateSkillDistanceCache();
        
        // 注册视图组件并重置对象池复用状态
        this.add(view);
        view.init();
        view.as.idle();
        // 广播怪物加载事件，供刷怪与战斗系统联动
        oops.message.dispatchEvent("monster_load",this)
        // 初始化移动参数：方向、目标 X、站位基准 Y
        const move = this.get(MoveComp);
        move.reset();
        move.direction = -1;
        move.targetX = Math.max(-320, Math.min(320, pos.x));
        move.baseY = dropToY;
        move.moving = false;

        // 依据下落距离自适应入场时长，确保观感一致
        const dropDistance = Math.abs(pos.y - dropToY);
        const dropDuration = Math.max(0.18, Math.min(0.38, dropDistance / 1200));

        // 停止旧动画后执行下落 tween，避免复用节点时动画叠加
        Tween.stopAllByTarget(node);
        tween(node)
            .to(dropDuration, { position: v3(pos.x, dropToY, 0) })
            .call(() => {
                if (!node || !node.isValid) return;
                // 落地后锁定最终位置，切换到落地完成状态
                node.setPosition(pos.x, dropToY, 0);
                view.playEnd("down");
                move.moving = true;
                // 落地后启用怪物碰撞分组
                if (collider) {
                    collider.enabled = true;
                    collider.group = BoxSet.MONSTER;
                    collider.apply();
                }
            })
            .start();
        // 维护关卡内怪物数量统计
        smc.vmdata.mission_data.mon_num++
    }

    
    /** 重置入口：复用 destroy 的释放流程 */
    reset() {
        super.destroy();
    }
    
}