import type { LevelDef } from 'db://assets/mx/module/battle/config/BattleConfigTypes';
import { createMembershipSet, membershipAdd, membershipFromArray, membershipDedupeArray, membershipToArray, type MembershipSet, type ReadonlyMembershipSet } from '../../../mx/tools/MembershipSet';
import type { ProjectLevelMonsterConfig } from './LevelMonsterConfig';
import { BattleFlowMode } from 'db://assets/mx/module/battle/core/BattleFlowMode';
import { MonsterType } from '../../manager/MonsterDataManager';
import { TableNames } from '../../game/ConfigTableData';
import { BattleMapSpec, resolveMapSizeFallback } from '../map/BattleMapSpec';
import { probeMapGridSpecFromPrefab, type MapGridSpec } from '../map/MapGridSpecReader';
import { WeaponComposeConfigProvider } from '../bag/WeaponComposeConfigProvider';
import { LevelWaveParser } from './LevelWaveParser';
import { calcSpecialReplicaFinalHpScale, getWeaponParaFromMaxChapter, resolveHpMultiple } from './MonsterHpCalculator';
import { resetMonsterHpDebugLog } from '../debug/MonsterHpDebugLog';

/** atk_after 段 1 类 debuff 类型 → 状态特效预制体 */
const DEBUFF_TYPE_TO_STATUS_FX: Readonly<Record<number, string>> = {
    1: '怪_火',
    2: '怪_流血',
    3: '怪_冰',
    4: '怪_晕眩',
    6: '怪_恶鬼',
    7: '怪_电',
};

/** 通用 debuff 特效（开战预载，避免局内首次 ApplyBuff 卡顿） */
const ALWAYS_BATTLE_DEBUFF_STATUS_FX = Object.values(DEBUFF_TYPE_TO_STATUS_FX);

/** Monster 表 icon/name → 预制体文件名（仅表名与 bundle 内文件名不一致时填写） */
const MONSTER_PREFAB_ALIASES: Readonly<Record<string, string>> = {};

export interface LevelDefBuildOptions {
    /** 战场 Level 表 id */
    levelId: number;
    /** 段位难度加值（Rank.diffcult） */
    rankDifficultyBonus?: number;
    /** 己方段位 id（查 Level.weapon_para） */
    playerRankId?: number;
    wallHp?: number;
    spawnInterval?: number;
    /** @deprecated 仅覆盖后续波间隔；请用 firstWaveDelay / subsequentWaveInterval */
    waveInterval?: number;
    /** 首波开怪前延迟（秒），默认读 Const 波次间隔 para1 第 1 项 */
    firstWaveDelay?: number;
    /** 后续每波开怪前间隔（秒），默认读 Const para1 第 2 项 */
    subsequentWaveInterval?: number;
    flowMode?: BattleFlowMode;
    /** 对局随机种子（Boss 概率链等） */
    seed?: number;
    /** 地图格子规格（默认从 mapLayer 预制体 MapManager 探测） */
    mapGridSpec?: MapGridSpec;
}

/** Const 波次间隔：首波延迟 + 后续波间隔（秒） */
export interface WaveIntervalConfig {
    /** 首波开怪前延迟（秒） */
    firstWaveDelaySec: number;
    /** 后续每波开怪前间隔（秒） */
    subsequentIntervalSec: number;
}

/** 双方基地默认血量（后续养成覆盖） */
export const DEFAULT_BATTLE_WALL_HP = 3;
/** 开战初始桃子（写死，不读 Level.startnumber） */
const START_PEACH = 1000;
/** 单怪出怪间隔默认秒数（常量表无对应行） */
const DEFAULT_MONSTER_SPAWN_INTERVAL_SEC = 1;
/** 对齐 Const 表 id=10（ConstNumType.WaveInterval），避免从 ConfigProjectData 拉环 */
const CONST_WAVE_INTERVAL_ID = 10;

/** 从 Level 表构建 MX LevelDef */
export class ChapterLevelBuilder {
    static build(options: LevelDefBuildOptions): LevelDef | null {
        resetMonsterHpDebugLog();
        const levelRow = gg.data.table.getTableData<ITableLevel>(TableNames.Level, options.levelId);
        if (!levelRow) {
            console.error('[ChapterLevelBuilder] level not found', options.levelId);
            return null;
        }

        const difficultyRow = Math.max(1, options.rankDifficultyBonus ?? (Number(levelRow.diffcult) || 1));
        const startGold = START_PEACH;
        const spawnInterval = this.resolveMonsterSpawnIntervalSec(options.spawnInterval);
        const waveTiming = this.resolveWaveIntervalConfig();
        const firstWaveDelay = options.firstWaveDelay ?? waveTiming.firstWaveDelaySec;
        const subsequentInterval = options.subsequentWaveInterval
            ?? options.waveInterval
            ?? waveTiming.subsequentIntervalSec;
        if (!(firstWaveDelay >= 0 && Number.isFinite(firstWaveDelay))) {
            console.log('[ChapterLevelBuilder] invalid firstWaveDelay', firstWaveDelay);
        }
        if (!(subsequentInterval > 0 && Number.isFinite(subsequentInterval))) {
            console.log('[ChapterLevelBuilder] invalid subsequentWaveInterval', subsequentInterval);
        }

        const monsterConfig: ProjectLevelMonsterConfig = {
            levelId: options.levelId,
            difficultyRow,
            monsterGroup: difficultyRow,
            hpMultiple: resolveHpMultiple(1),
            specialReplicaHpScale: calcSpecialReplicaFinalHpScale(),
            portHpMult: [1, 1, 1],
            powerPara: 0,
            powerPara2: 0,
            weaponPara: getWeaponParaFromMaxChapter(options.playerRankId ?? 0),
        };

        const bossSeed = options.seed != null && Number.isFinite(Number(options.seed))
            ? (Math.floor(Number(options.seed)) >>> 0)
            : ((Math.floor(Number(options.levelId) || 0) * 9973) >>> 0);
        const waves = LevelWaveParser.toWaveDefs(
            levelRow,
            monsterConfig,
            spawnInterval,
            Math.max(0, firstWaveDelay),
            Math.max(0.05, subsequentInterval),
            bossSeed,
        );

        const flowMode = options.flowMode ?? this.resolveFlowMode(levelRow);
        const mapPrefabName = this.resolveLevelMapPrefabName(options.levelId);
        const mapId = this.getLevelMapId(options.levelId);
        const mapSize = options.mapGridSpec
            ?? probeMapGridSpecFromPrefab(mapPrefabName)
            ?? (() => {
                console.log('[ChapterLevelBuilder] 未能从预制体读取地图规格，使用兜底常量', mapPrefabName, mapId);
                return resolveMapSizeFallback(mapId);
            })();

        return {
            id: `level_${options.levelId}_d${difficultyRow}`,
            flowMode,
            mapRows: mapSize.rows,
            mapCols: mapSize.cols,
            cellSize: mapSize.cellSize,
            wallHp: options.wallHp ?? DEFAULT_BATTLE_WALL_HP,
            startGold,
            extra: { monsterConfig },
            waves,
        };
    }

    /**
     * 单怪出怪间隔兜底（秒）：优先 Level.monster 第 4 列；缺省/无效时用 override 或局内默认。
     */
    static resolveMonsterSpawnIntervalSec(override?: number): number {
        if (typeof override === 'number' && override > 0 && Number.isFinite(override)) {
            return override;
        }
        return DEFAULT_MONSTER_SPAWN_INTERVAL_SEC;
    }

    /** 从 Const 表 id=10 读取波次间隔：para1「首波延迟,后续间隔」 */
    static resolveWaveIntervalConfig(): WaveIntervalConfig {
        const parts = gg.data.table.getConstArray(CONST_WAVE_INTERVAL_ID);
        const first = parts[0];
        const subsequent = parts[1];
        if (parts.length < 2) {
            console.log(
                '[ChapterLevelBuilder] Const 波次间隔 para1 须为「首波,后续」',
                CONST_WAVE_INTERVAL_ID,
            );
        }
        const firstWaveDelaySec = (typeof first === 'number' && first >= 0 && Number.isFinite(first))
            ? first
            : 10;
        const subsequentIntervalSec = (typeof subsequent === 'number' && subsequent > 0 && Number.isFinite(subsequent))
            ? subsequent
            : 5;
        return { firstWaveDelaySec, subsequentIntervalSec };
    }

    /**
     * 地图预制体名。读关卡表当前关卡 Level.map。
     * @param levelId 当前关卡 id
     */
    static resolveLevelMapPrefabName(levelId: number): string {
        const level = gg.data.table.getTableData<ITableLevel>(TableNames.Level, levelId);
        const raw = level?.map;
        if (typeof raw === 'string') {
            const name = raw.trim();
            if (name) return name;
        }
        console.warn('[ChapterLevelBuilder] 关卡缺少 Level.map', levelId);
        return '';
    }

    /** 从 map 预制体名解析数字索引（mapLayer3→3）；供 MAP_SIZE_BY_ID 等 legacy 逻辑 */
    static getLevelMapId(levelId: number): number {
        const name = ChapterLevelBuilder.resolveLevelMapPrefabName(levelId);
        const matched = /^mapLayer(\d+)$/i.exec(name);
        if (matched) {
            const parsed = Number(matched[1]);
            if (Number.isFinite(parsed) && parsed > 0) return parsed;
        }
        const numeric = Number(name);
        if (Number.isFinite(numeric) && numeric > 0) return numeric;
        return levelId > 0 ? levelId : 1;
    }

    /** @deprecated 使用 getLevelMapId */
    static getChapterMapId(levelId: number): number {
        return this.getLevelMapId(levelId);
    }

    /**
     * 战斗流程：Level.flow_mode；缺省经典备战。
     * flow_mode: 0=经典备战，1=连续战斗
     */
    static resolveFlowMode(chapter: ITableLevel): BattleFlowMode {
        const rowMode = (chapter as ITableLevel & { flow_mode?: number }).flow_mode;
        if (rowMode === 1) return BattleFlowMode.Continuous;
        return BattleFlowMode.ClassicPrep;
    }

    /** ???????????? id?????/???????? */
    static collectLevelMonsterIds(levelId: number): number[] {
        const level = gg.data.table.getTableData<ITableLevel>(TableNames.Level, levelId);
        if (!level) return [];
        return LevelWaveParser.collectMonsterIds(level);
    }

    /** @deprecated 使用 collectLevelMonsterIds */
    static collectChapterMonsterIds(levelId: number): number[] {
        return this.collectLevelMonsterIds(levelId);
    }

    static collectLevelMonsterModels(levelId: number): string[] {
        const models = createMembershipSet<string>();
        for (const id of this.collectLevelMonsterIds(levelId)) {
            const prefabName = this.resolveMonsterPrefabNameById(id);
            if (prefabName) membershipAdd(models, prefabName);
        }
        return membershipToArray(models);
    }

    /** Monster 表 id → 预制体名（icon / model / name + 别名） */
    static resolveMonsterPrefabNameById(monsterId: number): string | null {
        const row = gg.data.table.getTableData<ITableMonster>(TableNames.Monster, monsterId)
            ?? gg.data.project.getMonsterDataByID(monsterId);
        if (!row) return null;
        return this.resolveMonsterPrefabFromRow(row);
    }

    /** Monster 行 → battleGameMonster 预制体文件名 */
    static resolveMonsterPrefabFromRow(row: ITableMonster): string | null {
        const ext = row as ITableMonster & { model?: string };
        const icon = typeof row.icon === 'string' ? row.icon.trim() : '';
        const model = typeof ext.model === 'string' ? ext.model.trim() : '';
        const raw = icon || model || row.name;
        return this.resolveMonsterPrefabName(raw);
    }

    /** 配表 model 或 name → battleGameMonster 预制体文件名 */
    static resolveMonsterPrefabName(raw: unknown): string | null {
        if (typeof raw !== 'string') return null;
        const name = raw.trim();
        if (!name) return null;
        return MONSTER_PREFAB_ALIASES[name] ?? name;
    }

    static collectLevelBloodBarPrefabs(levelId: number): string[] {
        const prefabs = createMembershipSet<string>();
        for (const id of this.collectLevelMonsterIds(levelId)) {
            const row = gg.data.table.getTableData<ITableMonster>(TableNames.Monster, id);
            const type = row?.type ?? gg.data.project.getMonsterDataByID(id)?.type;
            const prefab = this._bloodBarPrefabForMonsterType(type);
            if (prefab) membershipAdd(prefabs, prefab);
        }
        return membershipToArray(prefabs);
    }

    /**
     * 关卡开战预载的状态特效：
     * - 通用正面 buff：怪_攻击buff
     * - 上阵武器 skill / debuff 关联特效
     */
    static collectLevelStatusFxPrefabs(levelId: number): string[] {
        const prefabs = membershipFromArray<string>(['怪_攻击buff', '怪_加速', '怪物加血', '血量上限']);
        for (const fx of ALWAYS_BATTLE_DEBUFF_STATUS_FX) {
            membershipAdd(prefabs, fx);
        }
        for (const fx of this._collectLoadoutStatusFxPrefabs()) {
            membershipAdd(prefabs, fx);
        }
        return membershipToArray(prefabs);
    }

    private static _addMonsterModelName(models: MembershipSet<string>, model: unknown): void {
        const prefabName = ChapterLevelBuilder.resolveMonsterPrefabName(model);
        if (prefabName) membershipAdd(models, prefabName);
    }

    private static _bloodBarPrefabForMonsterType(type: unknown): string | null {
        const monsterType = Number(type);
        if (!Number.isFinite(monsterType) || monsterType === MonsterType.TreasureBox) {
            return null;
        }
        if (monsterType === MonsterType.Boss) return 'BOSS血条底框';
        if (monsterType === MonsterType.SmallMonster || monsterType === MonsterType.SummonMonster) {
            return '小怪血条底';
        }
        return 'MidBOSS血条框';
    }

    private static _collectLoadoutStatusFxPrefabs(): string[] {
        const fx = createMembershipSet<string>();
        const baseAtkIds = createMembershipSet<number>();
        const equipped = gg.data.project.getEquippedWeaponDataList();
        const weapon1Ids = membershipFromArray(equipped.map((w) => Number(w.id)));

        for (const w1 of equipped) {
            for (const rawAtkId of w1.atk_id ?? []) {
                const atkId = Number(rawAtkId);
                if (Number.isFinite(atkId) && atkId > 0) membershipAdd(baseAtkIds, atkId);
            }
            for (const rawSkillId of w1.act_skill ?? []) {
                const actSkill = Number(rawSkillId);
                if (Number.isFinite(actSkill) && actSkill > 0) membershipAdd(baseAtkIds, actSkill);
            }
            const weaponId = Number(w1.startweapon) || 0;
            if (weaponId > 0) {
                const wpn = gg.data.table.getTableData<ITableWeapon>(TableNames.Weapon, weaponId);
                const wid = Number(wpn?.act_skill) || 0;
                if (wid > 0) membershipAdd(baseAtkIds, wid);
            }
        }

        const atkIds = membershipToArray(baseAtkIds);
        for (let i = 0; i < atkIds.length; i++) {
            const row = gg.data.table.getTableData<ITableSkill>(TableNames.Skill, atkIds[i]);
            if (row) this._collectStatusFxFromSkillRow(row, fx);
        }
        return membershipToArray(fx);
    }

    private static _collectStatusFxFromAtkHookRaw(raw: string, out: MembershipSet<string>): void {
        if (!raw) return;
        for (const seg of raw.split(';')) {
            const part = seg.trim();
            if (!part) continue;
            const nums = part.split(',').map(Number);
            if (!nums.length || !Number.isFinite(nums[0])) continue;
            if (nums[0] !== 1 || nums.length < 3) continue;
            const prefab = DEBUFF_TYPE_TO_STATUS_FX[nums[2]];
            if (prefab) membershipAdd(out, prefab);
        }
    }

    private static _collectStatusFxFromSkillAtkBuff(raw: string, out: MembershipSet<string>): void {
        const s = String(raw ?? '').trim();
        if (!s) return;
        const parts = s.split(',').map(Number);
        const kind = parts[0] ?? 0;
        if (kind === 1) membershipAdd(out, '怪_晕眩');
    }

    private static _collectStatusFxFromSkillRow(row: ITableSkill, out: MembershipSet<string>): void {
        this._collectStatusFxFromSkillAtkBuff(row.atk_buff1 ?? '', out);
        this._collectStatusFxFromSkillAtkBuff(row.atk_buff2 ?? '', out);
        const skill = row.skill?.trim();
        if (!skill) return;
        const parts = skill.split(',').map(Number);
        if ((parts[0] ?? 0) !== 2) return;
        const stunChance = parts[3] ?? 0;
        const stunSec = parts[4] ?? 0;
        if (stunChance > 0 && stunSec > 0) {
            membershipAdd(out, '怪_晕眩');
        }
    }
}