import type { EightAnchorContent } from '../../packages/shared/src/contracts/customWorldAgent';
import { normalizeCustomWorldCreatorIntent } from './customWorldCreatorIntent';
import type { CustomWorldProfile } from '../types';

export type CustomWorldFoundationEntryId =
  | 'world-promise'
  | 'player-fantasy'
  | 'theme-boundary'
  | 'player-entry-point'
  | 'core-conflict'
  | 'key-relationships'
  | 'hidden-lines'
  | 'iconic-elements';

export type CustomWorldFoundationEntry = {
  id: CustomWorldFoundationEntryId;
  label: string;
  value: string;
};

export function compactFoundationTextList(
  values: Array<string | null | undefined>,
) {
  return values.map((value) => value?.trim()).filter(Boolean) as string[];
}

export function parseFoundationTagText(value: string) {
  return value
    .split(/[;；]/u)
    .map((item) => item.trim())
    .filter(Boolean);
}

function toText(value: unknown) {
  return typeof value === 'string' ? value.trim() : '';
}

function toRecord(value: unknown) {
  return value && typeof value === 'object' && !Array.isArray(value)
    ? (value as Record<string, unknown>)
    : null;
}

function compactAnchorValue(value: unknown): string | null {
  const text = toText(value);
  if (text) {
    return text;
  }
  if (Array.isArray(value)) {
    const compacted = compactFoundationTextList(
      value.map((item) => compactAnchorValue(item)),
    ).join('；');
    return compacted || null;
  }
  const record = toRecord(value);
  if (record) {
    const compacted = compactFoundationTextList(
      Object.values(record).map((item) => compactAnchorValue(item)),
    ).join('；');
    return compacted || null;
  }
  return null;
}

function buildRelationshipSeedText(value: unknown) {
  const record = toRecord(value);
  if (!record) {
    return '';
  }

  return compactFoundationTextList([
    toText(record.name),
    toText(record.role),
    toText(record.relationToPlayer)
      ? `与玩家：${toText(record.relationToPlayer)}`
      : '',
    toText(record.hiddenHook) ? `代价/暗线：${toText(record.hiddenHook)}` : '',
  ]).join('；');
}

function buildAnchorContentFromProfileFallback(
  profile: CustomWorldProfile,
): EightAnchorContent {
  const creatorIntent = normalizeCustomWorldCreatorIntent(profile.creatorIntent);
  const relationshipSeed = creatorIntent?.keyCharacters[0] ?? null;

  return {
    worldPromise: compactFoundationTextList([
      creatorIntent?.worldHook ||
        profile.anchorPack?.worldSummary ||
        profile.summary,
      profile.subtitle || profile.settingText,
      creatorIntent?.toneDirectives.join('、') || profile.tone,
    ]).join('；') || null,
    playerFantasy: compactFoundationTextList([
      creatorIntent?.playerPremise || profile.playerGoal,
      profile.playerGoal,
      relationshipSeed?.hiddenHook ||
        creatorIntent?.coreConflicts[0] ||
        profile.coreConflicts[0] ||
        '',
    ]).join('；') || null,
    themeBoundary: compactFoundationTextList([
        creatorIntent?.themeKeywords.join('、') || '',
        creatorIntent?.toneDirectives.join('、') || '',
        profile.tone,
        profile.subtitle,
        creatorIntent?.forbiddenDirectives.length
          ? `避免：${creatorIntent.forbiddenDirectives.join('、')}`
          : '',
    ]).join('；') || null,
    playerEntryPoint: compactFoundationTextList([
      creatorIntent?.playerPremise || '',
      creatorIntent?.openingSituation || profile.coreConflicts[0] || '',
      profile.playerGoal,
    ]).join('；') || null,
    coreConflict: compactFoundationTextList([
      (creatorIntent?.coreConflicts.length
        ? creatorIntent.coreConflicts
        : profile.coreConflicts
      ).join('、'),
      relationshipSeed?.hiddenHook || profile.summary || profile.settingText,
      creatorIntent?.openingSituation || profile.coreConflicts[0] || profile.playerGoal,
    ]).join('；') || null,
    keyRelationships: relationshipSeed
      ? compactFoundationTextList([
          relationshipSeed.name,
          relationshipSeed.role,
          relationshipSeed.relationToPlayer,
          relationshipSeed.hiddenHook ? `代价/秘密：${relationshipSeed.hiddenHook}` : '',
        ]).join('；')
      : null,
    hiddenLines: compactFoundationTextList([
      relationshipSeed?.hiddenHook || '',
      profile.summary,
      profile.subtitle,
      profile.majorFactions[0] || '',
      creatorIntent?.openingSituation || profile.coreConflicts[0] || profile.playerGoal,
    ]).join('；') || null,
    iconicElements: compactFoundationTextList([
      (creatorIntent?.iconicElements.length
        ? creatorIntent.iconicElements
        : [
            profile.anchorPack?.motifDirectives.join('、') || '',
            profile.landmarks[0]?.name || '',
          ]
      ).join('、'),
      profile.camp?.name || '',
      profile.majorFactions[0] || '',
      profile.playerGoal,
      profile.coreConflicts[0] || '',
    ]).join('；') || null,
  } satisfies EightAnchorContent;
}

export function getCustomWorldFoundationAnchorContent(
  profile: CustomWorldProfile,
) {
  const anchorContentRecord = profile.anchorContent;
  if (!anchorContentRecord) {
    return buildAnchorContentFromProfileFallback(profile);
  }

  return {
    worldPromise: compactAnchorValue(anchorContentRecord.worldPromise),
    playerFantasy: compactAnchorValue(anchorContentRecord.playerFantasy),
    themeBoundary: compactAnchorValue(anchorContentRecord.themeBoundary),
    playerEntryPoint: compactAnchorValue(anchorContentRecord.playerEntryPoint),
    coreConflict: compactAnchorValue(anchorContentRecord.coreConflict),
    keyRelationships: compactAnchorValue(anchorContentRecord.keyRelationships),
    hiddenLines: compactAnchorValue(anchorContentRecord.hiddenLines),
    iconicElements: compactAnchorValue(anchorContentRecord.iconicElements),
  } satisfies EightAnchorContent;
}

export function buildCustomWorldFoundationEntries(
  profile: CustomWorldProfile,
): CustomWorldFoundationEntry[] {
  const creatorIntent = normalizeCustomWorldCreatorIntent(profile.creatorIntent);
  const anchorContent = getCustomWorldFoundationAnchorContent(profile);
  const fallbackRelationshipText =
    buildRelationshipSeedText(creatorIntent?.keyCharacters[0]) ||
    profile.playableNpcs[0]?.relationshipHooks.join('；') ||
    profile.storyNpcs[0]?.relationshipHooks.join('；') ||
    '';

  return [
    {
      id: 'world-promise',
      label: '世界承诺',
      value: anchorContent.worldPromise || '',
    },
    {
      id: 'player-fantasy',
      label: '玩家幻想',
      value: anchorContent.playerFantasy || '',
    },
    {
      id: 'theme-boundary',
      label: '主题边界',
      value: anchorContent.themeBoundary || '',
    },
    {
      id: 'player-entry-point',
      label: '玩家切入口',
      value: anchorContent.playerEntryPoint || '',
    },
    {
      id: 'core-conflict',
      label: '核心冲突',
      value: anchorContent.coreConflict || '',
    },
    {
      id: 'key-relationships',
      label: '关键关系',
      value: anchorContent.keyRelationships || fallbackRelationshipText,
    },
    {
      id: 'hidden-lines',
      label: '暗线与揭示',
      value: anchorContent.hiddenLines || '',
    },
    {
      id: 'iconic-elements',
      label: '标志元素',
      value: anchorContent.iconicElements || '',
    },
  ];
}