import { _decorator, instantiate, Prefab, v3, Vec3 } from "cc";
import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
import { CCComp } from "../../../../extensions/oops-plugin-framework/assets/module/common/CCComp";
import { Hero } from "../hero/Hero";
import { smc } from "../common/SingletonModuleComp";
import { Timer } from "db://oops-framework/core/common/timer/Timer";
import { GameEvent } from "../common/config/GameEvent";
import { HeroPos } from "../common/config/heroSet";
import { oops } from "../../../../extensions/oops-plugin-framework/assets/core/Oops";
import { HeroAttrsComp } from "../hero/HeroAttrsComp";
import { FacSet } from "../common/config/GameSet";
import { oneCom } from "../skill/oncend";
const { ccclass } = _decorator;

/** 视图层对象 */
@ccclass('MissionHeroCompComp')
@ecs.register('MissionHeroComp', false)
export class MissionHeroCompComp extends CCComp {
    private static readonly HERO_DROP_HEIGHT = 260
    timer:Timer=new Timer(2)
    Friend_is_dead:boolean=false
    current_hero_uuid:number=0
    current_hero_num:number=-1
    is_merging:boolean=false
    heros:any=[]
    onLoad(){
        this.on(GameEvent.FightReady,this.fight_ready,this)
        this.on(GameEvent.Zhaohuan,this.zhao_huan,this)
        this.on(GameEvent.MissionEnd,this.clear_heros,this)
        oops.message.on(GameEvent.CallHero,this.call_hero,this)
    }

    onDestroy(){
        oops.message.off(GameEvent.CallHero,this.call_hero,this)
        oops.message.off(GameEvent.FightReady,this.fight_ready,this)
        oops.message.off(GameEvent.Zhaohuan,this.zhao_huan,this)
        oops.message.off(GameEvent.MissionEnd,this.clear_heros,this)
    }

    start() {
        // this.test_call()
    }
    clear_heros(){
        const heroes = this.getAliveHeroes();
        for (let i = 0; i < heroes.length; i++) {
            heroes[i].destroy();
        }
    }
    fight_ready(){
        smc.vmdata.mission_data.hero_num=0
    }
    // protected update(dt: number): void {

    // }

    private zhao_huan(event: string, args: any){

    }

    private async call_hero(event: string, args: any){
        if (this.is_merging) return;
        const uuid = Number(args?.uuid ?? 1001);
        const hero_lv = Math.max(1, Number(args?.hero_lv ?? 1));
        this.addHero(uuid, hero_lv);
        const aliveHeroes = this.getAliveHeroes();
        const mergeHeroes = this.pickMergeHeroes(aliveHeroes, uuid, hero_lv, 3);
        if (mergeHeroes.length === 3) {
            this.is_merging = true;
            try {
                const mergedLv = await this.mergeGroupHeroes(mergeHeroes, uuid, hero_lv);
                await this.tryChainMerge(uuid, mergedLv);
            } finally {
                this.is_merging = false;
            }
            return;
        }
    }
       /** 添加英雄 */
    private addHero(uuid:number=1001,hero_lv:number=1) {
        console.log("addHero uuid:",uuid)
        let hero_pos=0
        let hero = ecs.getEntity<Hero>(Hero);
        let scale = 1
        let landingPos:Vec3 = HeroPos[hero_pos].pos;
        let spawnPos:Vec3 = v3(landingPos.x, landingPos.y + MissionHeroCompComp.HERO_DROP_HEIGHT, 0);
        hero.load(spawnPos,scale,uuid,landingPos.y,hero_lv);
        return hero;
    }

    private addMergedHero(uuid:number, hero_lv:number, ap:number, hp_max:number): number {
        const hero = this.addHero(uuid, hero_lv);
        const model = hero.get(HeroAttrsComp);
        if (!model) return hero_lv;
        model.ap = Math.max(0, ap);
        model.hp_max = Math.max(1, hp_max);
        model.hp = model.hp_max;
        model.dirty_hp = true;
        return model.lv;
    }

    private getAliveHeroes(): Hero[] {
        const heroes: Hero[] = [];
        ecs.query(ecs.allOf(HeroAttrsComp)).forEach((entity: ecs.Entity) => {
            const model = entity.get(HeroAttrsComp);
            if (!model) return;
            if (model.fac !== FacSet.HERO) return;
            if (model.is_dead) return;
            heroes.push(entity as Hero);
        });
        return heroes;
    }

    private pickMergeHeroes(aliveHeroes: Hero[], uuid: number, hero_lv: number, needCount: number = 3): Hero[] {
        const mergeHeroes: Hero[] = [];
        for (let i = 0; i < aliveHeroes.length; i++) {
            const model = aliveHeroes[i].get(HeroAttrsComp);
            if (!model) continue;
            if (model.hero_uuid !== uuid) continue;
            if (model.lv !== hero_lv) continue;
            mergeHeroes.push(aliveHeroes[i]);
            if (mergeHeroes.length === needCount) break;
        }
        return mergeHeroes;
    }

    private countMergeHeroes(aliveHeroes: Hero[], uuid: number, hero_lv: number): number {
        let count = 0;
        for (let i = 0; i < aliveHeroes.length; i++) {
            const model = aliveHeroes[i].get(HeroAttrsComp);
            if (!model) continue;
            if (model.hero_uuid !== uuid) continue;
            if (model.lv !== hero_lv) continue;
            count += 1;
        }
        return count;
    }

    private mergeDestroyAtBirth(mergeHeroes: Hero[], spawnPos: Vec3): Promise<void> {
        return new Promise((resolve) => {
            let doneCount = 0;
            const total = mergeHeroes.length;
            if (total <= 0) {
                resolve();
                return;
            }
            const onDone = () => {
                doneCount += 1;
                if (doneCount >= total) {
                    resolve();
                }
            };
            for (let i = 0; i < mergeHeroes.length; i++) {
                mergeHeroes[i].mergeToBirthAndDestroy(spawnPos, onDone);
            }
        });
    }

    private playMergeBoomFx(worldPos: Vec3): Promise<void> {
        return new Promise((resolve) => {
            const scene = smc.map?.MapView?.scene;
            const layer = scene?.entityLayer?.node;
            if (!layer || !layer.isValid) {
                resolve();
                return;
            }
            const prefab: Prefab = oops.res.get("game/skill/end/dead", Prefab)!;
            if (!prefab) {
                resolve();
                return;
            }
            const fx = instantiate(prefab);
            if (!fx || !fx.isValid) {
                resolve();
                return;
            }
            fx.parent = layer;
            fx.setPosition(worldPos);
            fx.getComponent(oneCom) || fx.addComponent(oneCom);
            this.scheduleOnce(() => resolve(), 0.4);
        });
    }

    private async mergeGroupHeroes(mergeHeroes: Hero[], uuid: number, hero_lv: number): Promise<number> {
        let sumAp = 0;
        let sumHpMax = 0;
        for (let i = 0; i < mergeHeroes.length; i++) {
            const model = mergeHeroes[i].get(HeroAttrsComp);
            if (!model) continue;
            sumAp += model.ap;
            sumHpMax += model.hp_max;
        }
        let hero_pos = 0;
        const landingPos:Vec3 = HeroPos[hero_pos].pos;
        const spawnPos:Vec3 = v3(landingPos.x, landingPos.y + MissionHeroCompComp.HERO_DROP_HEIGHT, 0);
        await this.mergeDestroyAtBirth(mergeHeroes, spawnPos);
        await this.playMergeBoomFx(spawnPos);
        return this.addMergedHero(uuid, hero_lv + 1, sumAp, sumHpMax);
    }

    private async tryChainMerge(uuid: number, startLv: number) {
        let checkLv = Math.max(1, startLv);
        let guard = 0;
        while (guard < 20) {
            guard += 1;
            const aliveHeroes = this.getAliveHeroes();
            const sameCount = this.countMergeHeroes(aliveHeroes, uuid, checkLv);
            if (sameCount < 3) {
                break;
            }
            const mergeHeroes = this.pickMergeHeroes(aliveHeroes, uuid, checkLv, 3);
            if (mergeHeroes.length < 3) {
                break;
            }
            checkLv = await this.mergeGroupHeroes(mergeHeroes, uuid, checkLv);
        }
    }



    
    /** 视图对象通过 ecs.Entity.remove(ModuleViewComp) 删除组件是触发组件处理自定义释放逻辑 */
    reset() {
        // this.node.destroy();
    }
}