import type {
  CustomWorldProfile,
  ThemePack,
  WorldTemplateType,
  WorldType,
} from '../../types';
import { detectCustomWorldThemeMode } from '../customWorldTheme';

type ThemePackPreset = Omit<ThemePack, 'id' | 'displayName'> & {
  displayName: string;
};

const THEME_PACK_PRESETS: Record<string, ThemePackPreset> = {
  mythic: {
    displayName: '自定义回响',
    toneRange: ['未知', '克制', '余波未定', '局势待开'],
    institutionLexicon: ['据点', '同盟', '旅团', '档案室', '哨站', '归舍'],
    tabooLexicon: ['失约', '旧痕', '越界', '封存', '误触', '回响'],
    artifactClasses: ['信物', '残页', '封匣', '样本', '旧钥', '印记'],
    actorArchetypes: ['见证者', '守望人', '异乡来客', '带路人', '失序幸存者'],
    conflictForms: ['追查', '护送', '回收', '分歧对峙', '失踪追索'],
    clueForms: ['痕迹', '记录', '口供', '残片', '旧图'],
    namingPatterns: ['地点+余痕+器类', '势力+旧称+用途', '事件+残响+物件'],
    revealStyles: ['循序松口', '线索回指', '保留一层', '让事实自己浮出'],
  },
  martial: {
    displayName: '江湖旧事',
    toneRange: ['冷峻', '克制', '刀锋般紧绷', '旧案余震'],
    institutionLexicon: ['门派', '镖局', '巡司', '商号', '关隘', '行旅'],
    tabooLexicon: ['旧案', '灭门', '失契', '私印', '禁脉', '断誓'],
    artifactClasses: ['遗兵', '信物', '令牌', '残卷', '旧佩', '封匣'],
    actorArchetypes: ['游侠', '守路人', '旧案见证者', '带路人', '避祸者'],
    conflictForms: ['寻仇', '护送', '围剿', '失踪追查', '门派角力'],
    clueForms: ['刀痕', '旧誓', '口供', '渡口风声', '残页'],
    namingPatterns: ['旧称+伤痕+器类', '地标+余痕+器类', '势力+制式+用途'],
    revealStyles: ['试探', '旁敲侧击', '旧事回响', '迟疑松口'],
  },
  arcane: {
    displayName: '灵脉秘闻',
    toneRange: ['清冷', '玄异', '高压', '因果牵引'],
    institutionLexicon: ['宗门', '法坛', '巡守司', '灵舟会', '洞府', '云阙'],
    tabooLexicon: ['封印', '逆脉', '禁术', '残魂', '天契', '旧誓'],
    artifactClasses: ['法器', '灵符', '玉简', '残卷', '封匣', '阵核'],
    actorArchetypes: ['巡守使', '隐修者', '守秘人', '失格弟子', '旧阵幸存者'],
    conflictForms: ['夺脉', '追索', '封印失衡', '宗门旧案', '秘境争夺'],
    clueForms: ['灵痕', '阵纹', '残识', '旧契', '法简'],
    namingPatterns: ['云阙+残痕+器类', '灵脉+封痕+器类', '誓约+余烬+器类'],
    revealStyles: ['碎片式透露', '借象示意', '以术遮掩', '因果回指'],
  },
  machina: {
    displayName: '机巧裂域',
    toneRange: ['冷硬', '压迫', '机械失序', '余温未散'],
    institutionLexicon: ['财团', '工坊', '舰队', '前哨站', '调查局', '机库'],
    tabooLexicon: ['过载', '黑匣', '失控协议', '封存日志', '污染区'],
    artifactClasses: ['芯片', '驱动核', '制式装置', '记录模组', '封存匣'],
    actorArchetypes: ['技师', '巡检员', '失联驾驶员', '前线回收者', '见证者'],
    conflictForms: ['封锁', '回收', '追查事故', '公司内斗', '前线失守'],
    clueForms: ['烧蚀痕', '日志', '封条', '校准码', '脉冲残波'],
    namingPatterns: ['编号+余痕+器类', '站点+制式+用途', '事故+残片+器类'],
    revealStyles: ['日志碎片', '术语遮掩', '延迟承认', '故障回声'],
  },
  tide: {
    displayName: '潮痕旧闻',
    toneRange: ['潮湿', '迷雾', '迟滞', '暗潮涌动'],
    institutionLexicon: ['港务', '巡海司', '渡船会', '哨塔', '湾区营地', '潮站'],
    tabooLexicon: ['沉船', '失契', '潮誓', '禁海区', '回潮夜'],
    artifactClasses: ['潮印', '旧锚', '航图', '信标', '封潮匣', '雾骨遗物'],
    actorArchetypes: ['渡口守更人', '巡潮者', '失船幸存者', '采录员', '岸线猎人'],
    conflictForms: ['封港', '追查失踪', '海路争夺', '潮灾余波', '护送穿渡'],
    clueForms: ['潮痕', '盐霜', '航线残页', '旧锚印', '失物清单'],
    namingPatterns: ['潮名+伤痕+器类', '港口+遗痕+器类', '誓约+余潮+器类'],
    revealStyles: ['传闻递进', '潮汐比喻', '回避本名', '隔雾指认'],
  },
  rift: {
    displayName: '裂界前线',
    toneRange: ['焦灼', '边境压力', '失序', '战线余烬'],
    institutionLexicon: ['前哨', '巡边队', '断层站', '界桥营', '回收组', '观察哨'],
    tabooLexicon: ['断层失守', '回响名单', '界外污染', '封桥令', '旧撤离线'],
    artifactClasses: ['界核', '锚印', '边潮样本', '回响记录', '裂缝制式物'],
    actorArchetypes: ['边巡者', '失线幸存者', '回收员', '名单记录人', '封桥见证者'],
    conflictForms: ['守线', '撤离', '回收异常', '追查失线', '前线补给争夺'],
    clueForms: ['裂痕', '界压残波', '名单残页', '旧封条', '警示标记'],
    namingPatterns: ['裂界+旧痕+器类', '前哨+制式+用途', '名单+残响+器类'],
    revealStyles: ['压力主导', '证词错位', '名单回响', '旧事倒灌'],
  },
};

function dedupeStrings(values: Array<string | null | undefined>, limit = 8) {
  return [...new Set((values ?? []).map((value) => value?.trim() ?? '').filter(Boolean))]
    .slice(0, limit);
}

function collectProfileLexicon(profile: Pick<
  CustomWorldProfile,
  'majorFactions' | 'coreConflicts' | 'summary' | 'tone' | 'playerGoal'
>) {
  return dedupeStrings([
    ...(profile.majorFactions ?? []),
    ...(profile.coreConflicts ?? []),
    profile.summary,
    profile.tone,
    profile.playerGoal,
  ]);
}

function cloneThemePack(mode: string, preset: ThemePackPreset): ThemePack {
  return {
    id: `theme-pack:${mode}`,
    displayName: preset.displayName,
    toneRange: [...preset.toneRange],
    institutionLexicon: [...preset.institutionLexicon],
    tabooLexicon: [...preset.tabooLexicon],
    artifactClasses: [...preset.artifactClasses],
    actorArchetypes: [...preset.actorArchetypes],
    conflictForms: [...preset.conflictForms],
    clueForms: [...preset.clueForms],
    namingPatterns: [...preset.namingPatterns],
    revealStyles: [...preset.revealStyles],
  };
}

function collectSemanticAnchorLexicon(
  profile: Pick<CustomWorldProfile, 'ownedSettingLayers'>,
) {
  const semanticAnchor = profile.ownedSettingLayers?.semanticAnchor;
  const expressionProfile = profile.ownedSettingLayers?.expressionProfile;

  if (!semanticAnchor && !expressionProfile) {
    return [];
  }

  return dedupeStrings([
    ...(semanticAnchor?.genreSignals ?? []),
    ...(semanticAnchor?.conflictForms ?? []),
    ...(semanticAnchor?.institutionTypes ?? []),
    ...(semanticAnchor?.tabooTypes ?? []),
    ...(semanticAnchor?.carrierTypes ?? []),
    ...(semanticAnchor?.forceSystemTypes ?? []),
    ...(semanticAnchor?.atmosphereTags ?? []),
    ...(expressionProfile?.presentationTone ?? []),
    ...(expressionProfile?.namingDirectives ?? []),
    ...(expressionProfile?.clueDirectives ?? []),
    ...(expressionProfile?.revealDirectives ?? []),
  ]);
}

function resolveThemeModeFromWorldType(
  worldType: WorldTemplateType | WorldType | null | undefined,
) {
  if (worldType === 'XIANXIA') {
    return 'arcane';
  }
  return 'mythic';
}

export function resolveFallbackThemePack(
  worldType: WorldTemplateType | WorldType | null | undefined,
) {
  const mode = resolveThemeModeFromWorldType(worldType);
  return cloneThemePack(mode, THEME_PACK_PRESETS[mode]!);
}

export function normalizeThemePack(
  value: unknown,
  fallback: ThemePack,
): ThemePack {
  if (!value || typeof value !== 'object') {
    return fallback;
  }

  const item = value as Partial<ThemePack>;
  const readList = (candidate: unknown, fallbackValue: string[]) => {
    const next = dedupeStrings(candidate as string[], fallbackValue.length);
    return next.length > 0 ? next : fallbackValue;
  };

  return {
    id: typeof item.id === 'string' && item.id.trim() ? item.id.trim() : fallback.id,
    displayName:
      typeof item.displayName === 'string' && item.displayName.trim()
        ? item.displayName.trim()
        : fallback.displayName,
    toneRange: readList(item.toneRange, fallback.toneRange),
    institutionLexicon: readList(
      item.institutionLexicon,
      fallback.institutionLexicon,
    ),
    tabooLexicon: readList(item.tabooLexicon, fallback.tabooLexicon),
    artifactClasses: readList(item.artifactClasses, fallback.artifactClasses),
    actorArchetypes: readList(item.actorArchetypes, fallback.actorArchetypes),
    conflictForms: readList(item.conflictForms, fallback.conflictForms),
    clueForms: readList(item.clueForms, fallback.clueForms),
    namingPatterns: readList(item.namingPatterns, fallback.namingPatterns),
    revealStyles: readList(item.revealStyles, fallback.revealStyles),
  };
}

export function buildThemePackFromWorldProfile(
  profile: Pick<
    CustomWorldProfile,
    | 'settingText'
    | 'summary'
    | 'tone'
    | 'playerGoal'
    | 'templateWorldType'
    | 'majorFactions'
    | 'coreConflicts'
    | 'ownedSettingLayers'
  > & {
    templateWorldType: WorldTemplateType | WorldType;
  },
) {
  const mode = detectCustomWorldThemeMode(profile);
  const base = cloneThemePack(mode, THEME_PACK_PRESETS[mode]!);
  const ownedThemePack = profile.ownedSettingLayers?.expressionProfile?.themePack;
  if (ownedThemePack) {
    return normalizeThemePack(ownedThemePack, base);
  }

  const lexicon = collectProfileLexicon(profile);
  const semanticLexicon = collectSemanticAnchorLexicon(profile);
  const semanticAnchor = profile.ownedSettingLayers?.semanticAnchor;
  const expressionProfile = profile.ownedSettingLayers?.expressionProfile;

  return normalizeThemePack(
    {
      ...base,
      institutionLexicon: dedupeStrings([
        ...base.institutionLexicon,
        ...(semanticAnchor?.institutionTypes ?? []),
        ...lexicon.filter((item) => item.length >= 2),
      ]),
      tabooLexicon: dedupeStrings([
        ...base.tabooLexicon,
        ...(semanticAnchor?.tabooTypes ?? []),
        ...(profile.coreConflicts ?? []).slice(0, 4),
      ]),
      artifactClasses: dedupeStrings([
        ...base.artifactClasses,
        ...(semanticAnchor?.carrierTypes ?? []),
      ]),
      conflictForms: dedupeStrings([
        ...base.conflictForms,
        ...(semanticAnchor?.conflictForms ?? []),
        ...(profile.coreConflicts ?? []).slice(0, 3),
      ]),
      clueForms: dedupeStrings([
        ...base.clueForms,
        ...(expressionProfile?.clueDirectives ?? []),
        ...(profile.majorFactions ?? []).slice(0, 3),
      ]),
      namingPatterns: dedupeStrings([
        ...base.namingPatterns,
        ...(expressionProfile?.namingDirectives ?? []),
      ]),
      revealStyles: dedupeStrings([
        ...base.revealStyles,
        ...(expressionProfile?.revealDirectives ?? []),
      ]),
      toneRange: dedupeStrings([
        profile.tone,
        ...(expressionProfile?.presentationTone ?? []),
        ...base.toneRange,
      ]),
      actorArchetypes: dedupeStrings([
        ...base.actorArchetypes,
        ...semanticLexicon.filter((item) => item.length >= 2),
      ]),
    },
    base,
  );
}