/**
 * @file MissionMonComp.ts
 * @description 怪物（Monster）登场管理组件（逻辑层）
 *
 * 职责：
 *   1. 预生成战斗怪物：FightReady 时通过 RogueSpawningEngine.generateBossCombo 随机一组 Boss 组合，并立即登场展示（供玩家侦查后再选英雄）。
 *   2. 战斗开始：PhasePrepareEnd 时恢复怪物行动（in_fight 前怪物仅原地待命，不会推进/索敌）。
 *
 * 关键设计：
 *   - 5 只怪在 X∈[100,320] 内按登场序号均匀铺开，Boss/小怪同时登场，玩家看清阵容后三选一。
 *   - 实际推进由统一 MoveComp 在战斗中向敌人移动自然形成，不再使用固定网格点。
 *   - 槽位索引仅用于 monGrid 寻路与 SCastSystem 索敌定位。
 */
import { _decorator, v3, Vec3 } from "cc";
import { mLogger } from "../common/Logger";
import { ecs } from "../../../../extensions/oops-plugin-framework/assets/libs/ecs/ECS";
import { CCComp } from "../../../../extensions/oops-plugin-framework/assets/module/common/CCComp";
import { oops } from "../../../../extensions/oops-plugin-framework/assets/core/Oops";
import { Monster } from "../hero/Mon";
import { smc } from "../common/SingletonModuleComp";
import { GameEvent } from "../common/config/GameEvent";
import { BoxSet } from "../common/config/GameSet";
import { spawningEngine, GeneratedMonster, TestModeConfig, BOSS_COUNT, MINION_COUNT } from "./RogueConfig";
import { HeroAttrsComp } from "../hero/HeroAttrsComp";
import { MoveComp } from "../hero/MoveComp";

const { ccclass, property } = _decorator;

@ccclass('MissionMonCompComp')
@ecs.register('MissionMonComp', false)
export class MissionMonCompComp extends CCComp {
    // ======================== 常量 ========================

    /** 怪物出生掉落高度 */
    private static readonly MON_DROP_HEIGHT = 0;
    /** 怪物登场 X 范围下限（靠近英雄侧） */
    private static readonly SPAWN_X_MIN = 100;
    /** 怪物登场 X 范围上限（靠近右侧） */
    private static readonly SPAWN_X_MAX = 320;

    /** 槽位基准 Y（3行×4列结构仅供 monGrid 寻路与 SCastSystem 索敌定位） */
    public static readonly MON_POSITIONS: Vec3[] = [
        v3(0, BoxSet.GAME_LINE, 0),  // index 0: Col1-Top
        v3(0, BoxSet.GAME_LINE, 0),  // index 1: Col1-Mid
        v3(0, BoxSet.GAME_LINE, 0),  // index 2: Col1-Bot
        v3(0, BoxSet.GAME_LINE, 0),  // index 3: Col2-Top
        v3(0, BoxSet.GAME_LINE, 0),  // index 4: Col2-Mid
        v3(0, BoxSet.GAME_LINE, 0),  // index 5: Col2-Bot
        v3(0, BoxSet.GAME_LINE, 0),  // index 6: Col3-Top
        v3(0, BoxSet.GAME_LINE, 0),  // index 7: Col3-Mid
        v3(0, BoxSet.GAME_LINE, 0),  // index 8: Col3-Bot
        v3(0, BoxSet.GAME_LINE, 0),  // index 9: Col4-Top
        v3(0, BoxSet.GAME_LINE, 0),  // index 10: Col4-Mid
        v3(0, BoxSet.GAME_LINE, 0),  // index 11: Col4-Bot
    ];

    // ======================== 编辑器属性 ========================

    @property({ tooltip: "是否启用调试日志" })
    private debugMode: boolean = false;

    // ======================== 运行时状态 ========================

    /** 全局生成顺序计数器（用于渲染层级排序） */
    private globalSpawnOrder: number = 0;
    /** 战斗场次（本局恒为 1，保留供 HUD/事件协议） */
    private currentWave: number = 1;
    /** 本场战斗的怪物总数 */
    private waveTargetCount: number = 0;
    /** 已登场的怪物数量 */
    private waveSpawnedCount: number = 0;
    /** 待登场队列（FightReady 时整组进入，PhasePrepareEnd 时一次全量刷出） */
    private spawnQueue: GeneratedMonster[] = [];

    // ======================== 生命周期 ========================

    onLoad() {
        this.on(GameEvent.FightReady, this.fight_ready, this);
    }

    protected update(dt: number): void {
        // 待登场统计（战斗结束检测与 HUD 进度消费）
        smc.vmdata.mission_data.pending_mon_num = this.spawnQueue.length;
    }

    start() { }

    /**
     * 战斗准备：重置运行时状态并预生成本场 Boss 组合。
     */
    fight_ready() {
        smc.vmdata.mission_data.mon_num = 0;
        smc.mission.stop_spawn_mon = false;
        this.globalSpawnOrder = 0;
        this.currentWave = 1;
        this.waveTargetCount = 0;
        this.waveSpawnedCount = 0;
        this.spawnQueue = [];

        // 随机一组 Boss 组合（最终 Boss 战强度）
        const monsters = spawningEngine.generateBossCombo();
        this.spawnQueue = monsters;
        this.waveTargetCount = monsters.length;
        smc.vmdata.mission_data.pending_mon_num = this.waveTargetCount;

        // 怪物先行登场：玩家侦查 Boss 组合后再做英雄三选一（in_fight 前怪物原地待命，不推进不索敌）
        const squad = this.spawnQueue;
        this.spawnQueue = [];
        smc.vmdata.mission_data.pending_mon_num = 0;
        for (const monData of squad) {
            this.addMonsterAtGrid(this.waveSpawnedCount, monData, this.currentWave);
            this.waveSpawnedCount++;
        }

        if (TestModeConfig.enable) {
            mLogger.log(this.debugMode, 'MissionMonComp', "[MissionMonComp] 测试模式已开启");
        }
        mLogger.log(this.debugMode, 'MissionMonComp', `[MissionMonComp] Boss 组合生成完成，怪物总数: ${this.waveTargetCount}`);

        oops.message.dispatchEvent(GameEvent.NewWave, {
            wave: this.currentWave,
            total: this.waveTargetCount,
            bossWave: monsters.some(m => m.isBoss),
        });
    }

    // ======================== 怪物生成 ========================

    /**
     * 在指定位置索引处生成一个怪物
     * 5 只怪在 X∈[100,320] 内按登场序号均匀铺开，Boss/小怪同时登场直接开打
     */
    private addMonsterAtGrid(
        posIndex: number,
        monData: GeneratedMonster,
        monLv: number = 1
    ) {
        let mon = ecs.getEntity<Monster>(Monster);
        let scale = -1;

        const basePos = MissionMonCompComp.MON_POSITIONS[posIndex % MissionMonCompComp.MON_POSITIONS.length];
        const spawnX = MissionMonCompComp.SPAWN_X_MIN
            + (MissionMonCompComp.SPAWN_X_MAX - MissionMonCompComp.SPAWN_X_MIN)
            * (posIndex / Math.max(1, BOSS_COUNT + MINION_COUNT - 1));
        const landingY = basePos.y;
        const spawnPos: Vec3 = v3(spawnX, landingY + MissionMonCompComp.MON_DROP_HEIGHT, 0);
        this.globalSpawnOrder = (this.globalSpawnOrder + 1) % 999;

        // 技能套装注入：通过 _testSkills 通道传递给 Mon.load()
        if (monData.skills) {
            (mon as any)._testSkills = monData.skills;
        }

        mon.load(spawnPos, scale, monData.uuid, monData.isBoss, landingY, monLv, posIndex);

        // oops.message 全局事件总线：Boss 登场（震屏/音效由表现层消费）
        if (monData.isBoss) {
            oops.message.dispatchEvent(GameEvent.BossSpawn, { pos: spawnPos.clone() });
        }

        const move = mon.get(MoveComp);
        if (move) {
            move.spawnOrder = this.globalSpawnOrder;
        }

        // 应用引擎计算好的最终属性
        const model = mon.get(HeroAttrsComp);
        if (model) {
            model.ap = monData.ap;
            model.hp_max = monData.hp;
            model.hp = model.hp_max;
        }
    }

    /** ECS 组件移除时触发 */
    reset() { }
}