import { Prefab } from 'cc';
import { ResPakage } from 'db://assets/mx/module/res/ResourcesManager';
import { ResPkgName } from 'db://assets/mx/module/res/ResPkgName';
import { ChapterLevelBuilder } from '../battle/config/ChapterLevelBuilder';
import {
    appendBattleHeroDirLoads,
    appendBattleMonsterDirLoad,
} from '../battle/res/BattleHeroResCollector';

/** 战斗分包名（与 GBundle 一致，避免 ConfigRes 循环依赖） */
const B = {
    BattleMap: 'battleMap',
    BattleGameMonster: 'battleGameMonster',
    BattleGame: 'battleGame',
} as const;

const PrefabPath = 'prefab/';

/**
 * 进局后静默补载项：有 name 则 load 单预制，否则 loadDir。
 */
export interface BattleAfterEnterItem {
    /** 分包 */
    bundle: string;
    /** 目录路径 */
    path: string;
    /** 单预制名；缺省则整目录 */
    name?: string;
}

/**
 * 按 Level 组装进战最小包；局内弹窗与长尾走静默补载。
 */
export class ResPkgBuilder {
    /**
     * 进战阻塞包：地图/模板/首波怪物与英雄体技，不含弹窗与受击长尾。
     * @param levelId 战场 Level id
     * @param _mapID 已废弃；地图预制体名由 Level.map 决定
     */
    static buildBattlePackage(levelId: number, _mapID: number = 0, _id2: number = 0): ResPakage {
        const mapPrefabName = ChapterLevelBuilder.resolveLevelMapPrefabName(levelId);
        const ress: ResPakage['ress'] = [
            { name: mapPrefabName, bundle: B.BattleMap, path: 'prefab/地图/', type: Prefab },
            { name: '出怪口', bundle: B.BattleMap, path: 'prefab/障碍物/', type: Prefab },
            { name: 'levelUpText', bundle: B.BattleMap, path: 'prefab/障碍物/', type: Prefab },
            { name: 'monsterTemplate', bundle: B.BattleGameMonster, path: PrefabPath, type: Prefab },
            { name: 'textGrid', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            /** 铲子（独立预制体，运行时池化挂 TextGrid） */
            { name: '铲', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            /** 开挖揭示宝箱（原格子锁） */
            { name: '宝箱', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            /** buff 表现由下方 appendBattleHeroDirLoads 整目录覆盖，此处不再逐条 */
            /** 通用飘仙桃（coinFly） */
            { name: 'coinFly', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: '营地血条', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: '怪跳出拖尾', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: 'battleText', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: 'canUpEff', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: 'trail1', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: 'trail2', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
            { name: 'trail3', bundle: B.BattleGame, path: PrefabPath, type: Prefab },
        ];

        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGame, 'prefab/数字/', 'atkMonsterScore');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGame, 'prefab/数字/', 'critHurtScore');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGame, 'prefab/数字/', 'critHurtScoreZi');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGame, 'prefab/数字/', 'beatBackScore');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGame, 'prefab/数字/', 'rateDamageScore');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGame, PrefabPath, 'killEff');

        for (const fx of ChapterLevelBuilder.collectLevelStatusFxPrefabs(levelId)) {
            ResPkgBuilder.pushBattlePrefab(ress, B.BattleGameMonster, PrefabPath, fx);
        }
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGameMonster, 'prefab/blood/', '小怪血条底');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGameMonster, 'prefab/blood/', 'BOSS血条底框');
        ResPkgBuilder.pushBattlePrefab(ress, B.BattleGameMonster, 'prefab/blood/', 'MidBOSS血条框');
        for (const blood of ChapterLevelBuilder.collectLevelBloodBarPrefabs(levelId)) {
            ResPkgBuilder.pushBattlePrefab(ress, B.BattleGameMonster, 'prefab/blood/', blood);
        }
        const resPkg: ResPakage = {
            name: ResPkgName.BattleRes,
            isReleaseable: true,
            ress,
        };
        appendBattleMonsterDirLoad(resPkg);
        appendBattleHeroDirLoads(resPkg);
        return resPkg;
    }

    /**
     * 进 BattleGame 后静默 load 的长尾（不 addRef）。
     * @param _levelId 关卡（预留按关扩展）
     */
    static getBattleAfterEnterItems(_levelId: number): BattleAfterEnterItem[] {
        return [
            { bundle: B.BattleGame, path: PrefabPath, name: '受击特效' },
            { bundle: B.BattleGame, path: PrefabPath, name: '受击刀痕' },
            { bundle: B.BattleGame, path: PrefabPath, name: '死亡' },
        ];
    }

    private static pushBattlePrefab(ress: ResPakage['ress'], bundle: string, path: string, name: unknown): void {
        if (typeof name !== 'string') return;
        const trimmed = name.trim();
        if (!trimmed) return;
        for (let i = 0; i < ress.length; i++) {
            const row = ress[i];
            if (row.name === trimmed && row.bundle === bundle && row.path === path) return;
        }
        ress.push({ name: trimmed, bundle, path, type: Prefab });
    }
}