#!/usr/bin/env node
/**
 * extract-types-vocab.ts
 * 
 * Extracts vocabulary from LinkML *Type.yaml and *Types.yaml schema files
 * and generates embeddings for two-tier semantic routing.
 * 
 * Output: apps/archief-assistent/public/types-vocab.json
 * 
 * Usage:
 *   npx tsx scripts/extract-types-vocab.ts
 *   npx tsx scripts/extract-types-vocab.ts --skip-embeddings  # Skip embedding generation
 * 
 * See: .opencode/rules/ontology-driven-cache-segmentation.md
 */

import { readFileSync, writeFileSync, readdirSync, existsSync, mkdirSync } from 'node:fs';
import { join, dirname } from 'node:path';
import { fileURLToPath } from 'node:url';
import { parse as parseYaml } from 'yaml';

// ESM compatibility for __dirname
const __filename = fileURLToPath(import.meta.url);
const __dirname = dirname(__filename);

// ============================================================================
// Configuration
// ============================================================================

const SCHEMA_DIR = join(__dirname, '../schemas/20251121/linkml/modules/classes');
const OUTPUT_FILE = join(__dirname, '../apps/archief-assistent/public/types-vocab.json');
const EMBEDDING_API_URL = process.env.EMBEDDING_API_URL || 'http://localhost:8000/api/embed';

// GLAMORCUBESFIXPHDNT code mapping
const TYPE_FILE_TO_CODE: Record<string, string> = {
  'ArchiveOrganizationType': 'A',
  'BioCustodianType': 'B',
  'CommercialOrganizationType': 'C',
  'DigitalPlatformType': 'D',
  'EducationProviderType': 'E',
  'FeatureCustodianType': 'F',
  'GalleryType': 'G',
  'HolySacredSiteType': 'H',
  'IntangibleHeritageGroupType': 'I',
  'LibraryType': 'L',
  'MuseumType': 'M',
  'NonProfitType': 'N',
  'OfficialInstitutionType': 'O',
  'PersonalCollectionType': 'P',
  'ResearchOrganizationType': 'R',
  'HeritageSocietyType': 'S',
  'TasteScentHeritageType': 'T',
  'UnspecifiedType': 'U',
  'MixedCustodianType': 'X',
};

// Base vocabulary for the 19 GLAMORCUBESFIXPHDNT types
// These are common terms users search for that aren't in the LinkML schema keywords
const BASE_TYPE_KEYWORDS: Record<string, Record<string, string[]>> = {
  'A': {
    nl: ['archief', 'archieven', 'archivaris', 'archiveren', 'archiefstuk', 'archiefstukken'],
    en: ['archive', 'archives', 'archivist', 'archival'],
    de: ['archiv', 'archive'],
    fr: ['archives', 'archiviste'],
  },
  // Archive subtypes - commonly searched terms for specific archive categories
  'A.MUNICIPAL_ARCHIVE': {
    nl: ['gemeentearchief', 'gemeentearchieven', 'stadsarchief', 'stadsarchieven'],
    en: ['municipal archive', 'municipal archives', 'city archive', 'city archives'],
    de: ['stadtarchiv', 'kommunalarchiv'],
    fr: ['archives municipales', 'archives communales'],
  },
  'A.REGIONAL_ARCHIVE': {
    nl: ['regionaal archief', 'regionale archieven', 'streekarchief', 'streekarchieven', 'provinciaal archief'],
    en: ['regional archive', 'regional archives', 'provincial archive'],
    de: ['regionalarchiv', 'landesarchiv'],
    fr: ['archives régionales', 'archives départementales'],
  },
  'A.NATIONAL_ARCHIVE': {
    nl: ['nationaal archief', 'rijksarchief', 'nationale archieven'],
    en: ['national archive', 'national archives', 'state archive'],
    de: ['nationalarchiv', 'bundesarchiv'],
    fr: ['archives nationales'],
  },
  'A.CHURCH_ARCHIVE': {
    nl: ['kerkarchief', 'kerkarchieven', 'parochiearchief', 'kerkelijke archieven'],
    en: ['church archive', 'church archives', 'parish archive', 'ecclesiastical archive'],
    de: ['kirchenarchiv', 'pfarrarchiv'],
    fr: ['archives paroissiales', 'archives ecclésiastiques'],
  },
  'A.BUSINESS_ARCHIVE': {
    nl: ['bedrijfsarchief', 'bedrijfsarchieven', 'ondernemingsarchief'],
    en: ['business archive', 'business archives', 'corporate archive', 'company archive'],
    de: ['unternehmensarchiv', 'firmenarchiv', 'wirtschaftsarchiv'],
    fr: ['archives d\'entreprise', 'archives économiques'],
  },
  'A.UNIVERSITY_ARCHIVE': {
    nl: ['universiteitsarchief', 'universitaire archieven', 'academisch archief'],
    en: ['university archive', 'university archives', 'academic archive'],
    de: ['universitätsarchiv', 'hochschularchiv'],
    fr: ['archives universitaires'],
  },
  'A.FAMILY_ARCHIVE': {
    nl: ['familiearchief', 'familiearchieven', 'huisarchief'],
    en: ['family archive', 'family archives', 'house archive', 'estate archive'],
    de: ['familienarchiv', 'hausarchiv'],
    fr: ['archives familiales'],
  },
  'A.NOTARIAL_ARCHIVE': {
    nl: ['notarieel archief', 'notariële archieven', 'notarisarchief'],
    en: ['notarial archive', 'notarial archives', 'notary archive'],
    de: ['notariatsarchiv'],
    fr: ['archives notariales'],
  },
  'B': {
    nl: ['dierentuin', 'dierentuinen', 'zoo', 'botanische tuin', 'arboretum', 'aquarium'],
    en: ['zoo', 'zoos', 'botanical garden', 'botanical gardens', 'arboretum', 'aquarium'],
    de: ['zoo', 'botanischer garten'],
    fr: ['zoo', 'jardin botanique'],
  },
  'C': {
    nl: ['bedrijfsarchief', 'bedrijfsarchieven', 'bedrijfscollectie', 'ondernemingsarchief'],
    en: ['corporate archive', 'corporate archives', 'business archive', 'company archive'],
    de: ['unternehmensarchiv', 'firmenarchiv'],
    fr: ['archives d\'entreprise'],
  },
  'D': {
    nl: ['digitaal platform', 'digitale platformen', 'online archief', 'digitale bibliotheek'],
    en: ['digital platform', 'digital platforms', 'online archive', 'digital library'],
    de: ['digitale plattform', 'online-archiv'],
    fr: ['plateforme numérique', 'archives numériques'],
  },
  'E': {
    nl: ['universiteit', 'universiteiten', 'hogeschool', 'hogescholen', 'onderwijsinstelling', 'school', 'scholen'],
    en: ['university', 'universities', 'college', 'colleges', 'school', 'schools', 'educational institution'],
    de: ['universität', 'hochschule', 'schule'],
    fr: ['université', 'école', 'établissement scolaire'],
  },
  'F': {
    nl: ['monument', 'monumenten', 'standbeeld', 'standbeelden', 'gedenkteken', 'begraafplaats', 'begraafplaatsen'],
    en: ['monument', 'monuments', 'statue', 'statues', 'memorial', 'cemetery', 'cemeteries'],
    de: ['denkmal', 'denkmäler', 'statue', 'friedhof'],
    fr: ['monument', 'monuments', 'statue', 'cimetière'],
  },
  'G': {
    nl: ['galerie', 'galerij', 'galerijen', 'kunstgalerie', 'kunstgalerij', 'kunsthal'],
    en: ['gallery', 'galleries', 'art gallery', 'art galleries', 'kunsthalle'],
    de: ['galerie', 'galerien', 'kunstgalerie', 'kunsthalle'],
    fr: ['galerie', 'galeries', 'galerie d\'art'],
  },
  'H': {
    nl: ['kerk', 'kerken', 'kathedraal', 'kapel', 'moskee', 'synagoge', 'tempel', 'klooster', 'abdij'],
    en: ['church', 'churches', 'cathedral', 'chapel', 'mosque', 'synagogue', 'temple', 'monastery', 'abbey'],
    de: ['kirche', 'kathedrale', 'kapelle', 'moschee', 'synagoge', 'tempel', 'kloster', 'abtei'],
    fr: ['église', 'cathédrale', 'chapelle', 'mosquée', 'synagogue', 'temple', 'monastère', 'abbaye'],
  },
  'I': {
    nl: ['immaterieel erfgoed', 'tradities', 'folklore', 'volkscultuur'],
    en: ['intangible heritage', 'traditions', 'folklore', 'oral history'],
    de: ['immaterielles erbe', 'traditionen', 'folklore'],
    fr: ['patrimoine immatériel', 'traditions', 'folklore'],
  },
  'L': {
    nl: ['bibliotheek', 'bibliotheken', 'bieb', 'boekerij', 'mediatheek', 'leeszaal'],
    en: ['library', 'libraries', 'public library', 'reading room'],
    de: ['bibliothek', 'bibliotheken', 'bücherei'],
    fr: ['bibliothèque', 'bibliothèques', 'médiathèque'],
  },
  // Library subtypes - commonly searched terms for specific library categories
  'L.PUBLIC_LIBRARY': {
    nl: ['openbare bibliotheek', 'openbare bibliotheken', 'stadsbibliotheek', 'gemeentebibliotheek'],
    en: ['public library', 'public libraries', 'city library'],
    de: ['öffentliche bibliothek', 'stadtbibliothek', 'stadtbücherei'],
    fr: ['bibliothèque publique', 'bibliothèque municipale'],
  },
  'L.ACADEMIC_LIBRARY': {
    nl: ['universiteitsbibliotheek', 'wetenschappelijke bibliotheek', 'academische bibliotheek', 'hogeschoolbibliotheek'],
    en: ['academic library', 'university library', 'research library'],
    de: ['universitätsbibliothek', 'wissenschaftliche bibliothek', 'hochschulbibliothek'],
    fr: ['bibliothèque universitaire', 'bibliothèque académique'],
  },
  'L.NATIONAL_LIBRARY': {
    nl: ['nationale bibliotheek', 'koninklijke bibliotheek', 'kb'],
    en: ['national library', 'royal library'],
    de: ['nationalbibliothek', 'staatsbibliothek'],
    fr: ['bibliothèque nationale'],
  },
  'L.SPECIAL_LIBRARY': {
    nl: ['speciale bibliotheek', 'vakbibliotheek', 'gespecialiseerde bibliotheek'],
    en: ['special library', 'specialized library', 'subject library'],
    de: ['spezialbibliothek', 'fachbibliothek'],
    fr: ['bibliothèque spécialisée'],
  },
  'L.SCHOOL_LIBRARY': {
    nl: ['schoolbibliotheek', 'schoolbibliotheken', 'schoolmediatheek'],
    en: ['school library', 'school libraries'],
    de: ['schulbibliothek', 'schulbücherei'],
    fr: ['bibliothèque scolaire'],
  },
  'L.CHILDRENS_LIBRARY': {
    nl: ['jeugdbibliotheek', 'kinderbibliotheek', 'jeugdafdeling'],
    en: ['children\'s library', 'youth library', 'kids library'],
    de: ['kinderbibliothek', 'jugendbibliothek'],
    fr: ['bibliothèque jeunesse', 'bibliothèque pour enfants'],
  },
  'L.THEOLOGICAL_LIBRARY': {
    nl: ['theologische bibliotheek', 'kerkelijke bibliotheek', 'kloosterbibliotheek'],
    en: ['theological library', 'religious library', 'monastery library'],
    de: ['theologische bibliothek', 'klosterbibliothek'],
    fr: ['bibliothèque théologique', 'bibliothèque monastique'],
  },
  'L.MUSIC_LIBRARY': {
    nl: ['muziekbibliotheek', 'muziekcollectie'],
    en: ['music library', 'music collection'],
    de: ['musikbibliothek'],
    fr: ['bibliothèque musicale', 'médiathèque musicale'],
  },
  'M': {
    nl: ['museum', 'musea', 'museums', 'tentoonstellingsruimte', 'expositieruimte'],
    en: ['museum', 'museums', 'exhibition space'],
    de: ['museum', 'museen'],
    fr: ['musée', 'musées'],
  },
  // Museum subtypes - commonly searched terms that map to specific museum categories
  'M.ART_MUSEUM': {
    nl: ['kunstmuseum', 'kunstmusea', 'kunstcollectie'],
    en: ['art museum', 'art museums', 'fine art museum'],
    de: ['kunstmuseum', 'kunstmuseen'],
    fr: ['musée d\'art', 'musée des beaux-arts'],
  },
  'M.NATURAL_HISTORY_MUSEUM': {
    nl: ['natuurhistorisch museum', 'natuurmuseum', 'natuurmusea'],
    en: ['natural history museum', 'natural history museums'],
    de: ['naturkundemuseum', 'naturhistorisches museum'],
    fr: ['musée d\'histoire naturelle'],
  },
  'M.SCIENCE_MUSEUM': {
    nl: ['wetenschapsmuseum', 'techniekmuseum', 'wetenschapsmusea'],
    en: ['science museum', 'science museums', 'technology museum'],
    de: ['wissenschaftsmuseum', 'technikmuseum'],
    fr: ['musée des sciences', 'musée de la technique'],
  },
  'M.HISTORY_MUSEUM': {
    nl: ['historisch museum', 'geschiedenismuseum', 'historische musea'],
    en: ['history museum', 'history museums', 'historical museum'],
    de: ['geschichtsmuseum', 'historisches museum'],
    fr: ['musée d\'histoire', 'musée historique'],
  },
  'M.OPEN_AIR_MUSEUM': {
    nl: ['openluchtmuseum', 'openluchtmusea', 'freilichtmuseum'],
    en: ['open-air museum', 'open air museum', 'outdoor museum'],
    de: ['freilichtmuseum', 'freiluftmuseum'],
    fr: ['musée de plein air', 'écomusée'],
  },
  'M.ARCHAEOLOGICAL_MUSEUM': {
    nl: ['archeologisch museum', 'oudheidkundig museum', 'archeologische musea'],
    en: ['archaeological museum', 'archaeology museum'],
    de: ['archäologisches museum'],
    fr: ['musée archéologique'],
  },
  'M.MARITIME_MUSEUM': {
    nl: ['maritiem museum', 'scheepvaartmuseum', 'maritieme musea'],
    en: ['maritime museum', 'naval museum', 'shipping museum'],
    de: ['schifffahrtsmuseum', 'maritimes museum'],
    fr: ['musée maritime', 'musée de la marine'],
  },
  'M.MILITARY_MUSEUM': {
    nl: ['militair museum', 'legermuseum', 'oorlogsmuseum', 'militaire musea'],
    en: ['military museum', 'war museum', 'army museum'],
    de: ['militärmuseum', 'heeresmuseum', 'kriegsmuseum'],
    fr: ['musée militaire', 'musée de l\'armée'],
  },
  'M.ETHNOGRAPHIC_MUSEUM': {
    nl: ['volkenkundig museum', 'etnografisch museum', 'volkenkundige musea'],
    en: ['ethnographic museum', 'ethnography museum', 'anthropology museum'],
    de: ['völkerkundemuseum', 'ethnologisches museum'],
    fr: ['musée ethnographique', 'musée d\'ethnologie'],
  },
  'M.FOLK_MUSEUM': {
    nl: ['volkskundemuseum', 'heemkundig museum', 'folkloristisch museum'],
    en: ['folk museum', 'folklore museum', 'heritage museum'],
    de: ['volkskundemuseum', 'heimatmuseum'],
    fr: ['musée du folklore', 'musée des traditions populaires'],
  },
  'M.LOCAL_HISTORY_MUSEUM': {
    nl: ['streekmuseum', 'stadsmuseum', 'gemeentemuseum', 'lokaal museum'],
    en: ['local history museum', 'city museum', 'regional museum'],
    de: ['heimatmuseum', 'stadtmuseum', 'regionalmuseum'],
    fr: ['musée local', 'musée régional', 'musée de la ville'],
  },
  'M.TRANSPORT_MUSEUM': {
    nl: ['vervoermuseum', 'spoorwegmuseum', 'automuseum', 'trammuseum'],
    en: ['transport museum', 'railway museum', 'automobile museum', 'car museum'],
    de: ['verkehrsmuseum', 'eisenbahnmuseum', 'automuseum'],
    fr: ['musée des transports', 'musée du chemin de fer', 'musée de l\'automobile'],
  },
  'M.CHILDRENS_MUSEUM': {
    nl: ['kindermuseum', 'kindermusea'],
    en: ['children\'s museum', 'kids museum'],
    de: ['kindermuseum'],
    fr: ['musée pour enfants'],
  },
  'N': {
    nl: ['stichting', 'stichtingen', 'ngo', 'non-profit', 'goed doel'],
    en: ['foundation', 'foundations', 'ngo', 'non-profit', 'nonprofit', 'charity'],
    de: ['stiftung', 'stiftungen', 'ngo'],
    fr: ['fondation', 'fondations', 'ong'],
  },
  'O': {
    // Note: Archive-specific terms (gemeentearchief, nationaal archief, etc.) are now mapped to 
    // archive subtypes (A.MUNICIPAL_ARCHIVE, A.NATIONAL_ARCHIVE, etc.) for more precise cache segmentation
    nl: ['overheidsinstelling', 'rijksdienst', 'erfgoeddienst', 'erfgoedinstelling', 'rijksoverheid'],
    en: ['government institution', 'heritage agency', 'heritage service'],
    de: ['staatliche einrichtung', 'denkmalamt', 'kulturamt'],
    fr: ['institution gouvernementale', 'service du patrimoine'],
  },
  'P': {
    nl: ['privécollectie', 'privéverzameling', 'particuliere collectie', 'verzamelaar'],
    en: ['private collection', 'personal collection', 'collector', 'private archive'],
    de: ['privatsammlung', 'privatarchiv', 'sammler'],
    fr: ['collection privée', 'collection personnelle', 'collectionneur'],
  },
  'R': {
    nl: ['onderzoeksinstituut', 'kenniscentrum', 'documentatiecentrum', 'studiecentrum'],
    en: ['research institute', 'research center', 'knowledge center', 'documentation center', 'study center'],
    de: ['forschungsinstitut', 'forschungszentrum', 'dokumentationszentrum'],
    fr: ['institut de recherche', 'centre de recherche', 'centre de documentation'],
  },
  'S': {
    nl: ['historische vereniging', 'heemkundige kring', 'oudheidkundige vereniging', 'genootschap', 'erfgoedvereniging'],
    en: ['historical society', 'heritage society', 'antiquarian society', 'local history society'],
    de: ['geschichtsverein', 'heimatverein', 'altertumsverein'],
    fr: ['société historique', 'société d\'histoire', 'association patrimoniale'],
  },
  'T': {
    nl: ['culinair erfgoed', 'gastronomisch erfgoed', 'parfumerie', 'distilleerderij', 'brouwerij'],
    en: ['culinary heritage', 'gastronomic heritage', 'perfumery', 'distillery', 'brewery', 'taste heritage'],
    de: ['kulinarisches erbe', 'gastronomisches erbe', 'parfümerie', 'destillerie', 'brauerei'],
    fr: ['patrimoine culinaire', 'patrimoine gastronomique', 'parfumerie', 'distillerie', 'brasserie'],
  },
  'U': {
    nl: ['onbekend', 'niet gespecificeerd'],
    en: ['unknown', 'unspecified', 'unclassified'],
    de: ['unbekannt', 'nicht spezifiziert'],
    fr: ['inconnu', 'non spécifié'],
  },
  'X': {
    nl: ['gemengd', 'gecombineerd', 'museum en archief', 'archief en bibliotheek'],
    en: ['mixed', 'combined', 'museum and archive', 'archive and library'],
    de: ['gemischt', 'kombiniert'],
    fr: ['mixte', 'combiné'],
  },
};

// ============================================================================
// Types
// ============================================================================

interface TermLogEntry {
  typeCode: string;
  typeName: string;
  subtypeName?: string;
  recordSetType?: string;
  wikidata?: string;
  lang: string;
}

interface SubtypeInfo {
  className: string;
  wikidata?: string;
  accumulatedTerms: string;
  keywords: Record<string, string[]>;
}

interface TypeInfo {
  code: string;
  className: string;
  baseWikidata?: string;
  accumulatedTerms: string;
  keywords: Record<string, string[]>;
  subtypes: Record<string, SubtypeInfo>;
}

interface RecordSetTypeInfo {
  className: string;
  accumulatedTerms: string;
  keywords: Record<string, string[]>;
}

interface TypesVocabulary {
  version: string;
  schemaVersion: string;
  embeddingModel: string;
  embeddingDimensions: number;
  tier1Embeddings: Record<string, number[]>;
  tier2Embeddings: Record<string, Record<string, number[]>>;
  termLog: Record<string, TermLogEntry>;
  institutionTypes: Record<string, TypeInfo>;
  recordSetTypes: Record<string, RecordSetTypeInfo>;
}

interface ParsedClass {
  className: string;
  description?: string;
  keywords?: string[];
  structuredAliases?: Array<{ literal_form: string; in_language?: string }>;
  wikidataEntity?: string;
  isSubtypeOf?: string;
}

// ============================================================================
// YAML Parsing
// ============================================================================

function parseYamlFile(filePath: string): Record<string, unknown> | null {
  try {
    const content = readFileSync(filePath, 'utf-8');
    return parseYaml(content);
  } catch (error) {
    console.warn(`Warning: Could not parse ${filePath}: ${error}`);
    return null;
  }
}

function extractClassesFromYaml(yamlData: Record<string, unknown>): ParsedClass[] {
  const classes: ParsedClass[] = [];
  const classesSection = yamlData.classes as Record<string, unknown> | undefined;
  
  if (!classesSection) return classes;
  
  for (const [className, classDef] of Object.entries(classesSection)) {
    if (typeof classDef !== 'object' || classDef === null) continue;
    
    const classData = classDef as Record<string, unknown>;
    
    // Skip abstract base classes (except the main Type class)
    if (classData.abstract === true && !className.endsWith('Type')) continue;
    
    const parsed: ParsedClass = {
      className,
      description: classData.description as string | undefined,
      keywords: classData.keywords as string[] | undefined,
      structuredAliases: classData.structured_aliases as Array<{ literal_form: string; in_language?: string }> | undefined,
      isSubtypeOf: classData.is_a as string | undefined,
    };
    
    // Extract wikidata entity from slot_usage or mappings
    const slotUsage = classData.slot_usage as Record<string, unknown> | undefined;
    if (slotUsage?.wikidata_entity) {
      const wdSlot = slotUsage.wikidata_entity as Record<string, unknown>;
      parsed.wikidataEntity = wdSlot.equals_string as string | undefined;
    }
    
    // Check exact_mappings for Wikidata
    const exactMappings = classData.exact_mappings as string[] | undefined;
    if (exactMappings) {
      const wdMapping = exactMappings.find(m => m.startsWith('wd:') || m.startsWith('wikidata:'));
      if (wdMapping) {
        parsed.wikidataEntity = wdMapping.replace(/^(wd:|wikidata:)/, '');
      }
    }
    
    // Check broad_mappings for Wikidata
    const broadMappings = classData.broad_mappings as string[] | undefined;
    if (broadMappings && !parsed.wikidataEntity) {
      const wdMapping = broadMappings.find(m => m.startsWith('wd:'));
      if (wdMapping) {
        parsed.wikidataEntity = wdMapping.replace('wd:', '');
      }
    }
    
    classes.push(parsed);
  }
  
  return classes;
}

function extractKeywordsFromClass(parsedClass: ParsedClass): Record<string, string[]> {
  const keywords: Record<string, string[]> = {};
  
  // 1. Extract from keywords array (usually language-agnostic, assume Dutch/English)
  if (parsedClass.keywords) {
    keywords['nl'] = keywords['nl'] || [];
    keywords['en'] = keywords['en'] || [];
    for (const kw of parsedClass.keywords) {
      // Simple heuristic: Dutch words often have Dutch-specific patterns
      const isDutch = /[ij]|sch|cht|aa|ee|oo|uu/i.test(kw);
      if (isDutch) {
        keywords['nl'].push(kw.toLowerCase());
      } else {
        keywords['en'].push(kw.toLowerCase());
      }
    }
  }
  
  // 2. Extract from structured_aliases (language-tagged)
  if (parsedClass.structuredAliases) {
    for (const alias of parsedClass.structuredAliases) {
      const lang = alias.in_language || 'en';
      keywords[lang] = keywords[lang] || [];
      keywords[lang].push(alias.literal_form.toLowerCase());
    }
  }
  
  // 3. Convert class name to keywords
  // MunicipalArchive -> ["municipal archive", "municipal", "archive"]
  const classNameWords = parsedClass.className
    .replace(/([A-Z])/g, ' $1')
    .trim()
    .toLowerCase()
    .split(/\s+/);
  
  keywords['en'] = keywords['en'] || [];
  keywords['en'].push(classNameWords.join(' '));
  
  return keywords;
}

function accumulateTerms(keywords: Record<string, string[]>): string {
  const allTerms: string[] = [];
  for (const terms of Object.values(keywords)) {
    allTerms.push(...terms);
  }
  return [...new Set(allTerms)].join(' ');
}

// ============================================================================
// Embedding Generation
// ============================================================================

async function generateEmbedding(text: string, skipEmbeddings: boolean): Promise<number[]> {
  if (skipEmbeddings) {
    // Return empty placeholder
    return [];
  }
  
  try {
    const response = await fetch(EMBEDDING_API_URL, {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({ text }),
    });
    
    if (!response.ok) {
      console.warn(`Embedding API error: ${response.status}`);
      return [];
    }
    
    const data = await response.json();
    return data.embedding || [];
  } catch (error) {
    console.warn(`Embedding generation failed: ${error}`);
    return [];
  }
}

// ============================================================================
// Main Processing
// ============================================================================

async function processTypeFiles(): Promise<TypesVocabulary> {
  const skipEmbeddings = process.argv.includes('--skip-embeddings');
  
  console.log('🔍 Scanning schema directory:', SCHEMA_DIR);
  console.log(`📊 Embedding generation: ${skipEmbeddings ? 'SKIPPED' : 'ENABLED'}`);
  
  const vocabulary: TypesVocabulary = {
    version: new Date().toISOString(),
    schemaVersion: '20251121',
    embeddingModel: 'paraphrase-multilingual-MiniLM-L12-v2',
    embeddingDimensions: 384,
    tier1Embeddings: {},
    tier2Embeddings: {},
    termLog: {},
    institutionTypes: {},
    recordSetTypes: {},
  };
  
  // Find all *Type.yaml files (base types)
  const files = readdirSync(SCHEMA_DIR);
  const typeFiles = files.filter(f => f.endsWith('Type.yaml') && !f.endsWith('Types.yaml'));
  const typesFiles = files.filter(f => f.endsWith('Types.yaml'));
  
  console.log(`\n📁 Found ${typeFiles.length} Type files and ${typesFiles.length} Types files`);
  
  // Process base Type files
  for (const file of typeFiles) {
    const typeName = file.replace('.yaml', '');
    const code = TYPE_FILE_TO_CODE[typeName];
    
    if (!code) {
      console.log(`  ⏭️  Skipping ${typeName} (not in GLAMORCUBESFIXPHDNT)`);
      continue;
    }
    
    console.log(`\n📄 Processing ${typeName} (${code})`);
    
    const filePath = join(SCHEMA_DIR, file);
    const yamlData = parseYamlFile(filePath);
    if (!yamlData) continue;
    
    const classes = extractClassesFromYaml(yamlData);
    const baseClass = classes.find(c => c.className === typeName);
    
    if (!baseClass) {
      console.log(`  ⚠️  No base class found in ${file}`);
      continue;
    }
    
    // Initialize type info
    const typeInfo: TypeInfo = {
      code,
      className: typeName,
      baseWikidata: baseClass.wikidataEntity,
      accumulatedTerms: '',
      keywords: extractKeywordsFromClass(baseClass),
      subtypes: {},
    };
    
    // Merge BASE_TYPE_KEYWORDS into typeInfo.keywords
    const baseKeywords = BASE_TYPE_KEYWORDS[code];
    if (baseKeywords) {
      for (const [lang, terms] of Object.entries(baseKeywords)) {
        typeInfo.keywords[lang] = typeInfo.keywords[lang] || [];
        typeInfo.keywords[lang].push(...terms);
        // Deduplicate
        typeInfo.keywords[lang] = [...new Set(typeInfo.keywords[lang])];
      }
    }
    
    // Look for corresponding Types file (subtypes)
    const subtypesFilePath = join(SCHEMA_DIR, file.replace('Type.yaml', 'Types.yaml'));
    
    if (existsSync(subtypesFilePath)) {
      console.log(`  📂 Processing subtypes from ${subtypesFilePath.split('/').pop()}`);
      const subtypesYaml = parseYamlFile(subtypesFilePath);
      if (subtypesYaml) {
        const subtypeClasses = extractClassesFromYaml(subtypesYaml);
        
        for (const subclass of subtypeClasses) {
          // Convert CamelCase to UPPER_SNAKE_CASE
          const subtypeName = subclass.className
            .replace(/([a-z])([A-Z])/g, '$1_$2')
            .toUpperCase();
          const subtypeKeywords = extractKeywordsFromClass(subclass);
          
          const subtypeInfo: SubtypeInfo = {
            className: subclass.className,
            wikidata: subclass.wikidataEntity,
            accumulatedTerms: accumulateTerms(subtypeKeywords),
            keywords: subtypeKeywords,
          };
          
          typeInfo.subtypes[subtypeName] = subtypeInfo;
          
          // Add to term log
          for (const [lang, terms] of Object.entries(subtypeKeywords)) {
            for (const term of terms) {
              vocabulary.termLog[term] = {
                typeCode: code,
                typeName,
                subtypeName,
                wikidata: subclass.wikidataEntity,
                lang,
              };
            }
          }
          
          console.log(`    ✓ ${subclass.className}: ${Object.values(subtypeKeywords).flat().length} terms`);
        }
      }
    }
    
    // Accumulate all terms for this type (base + all subtypes)
    const allTypeTerms: string[] = [];
    allTypeTerms.push(accumulateTerms(typeInfo.keywords));
    for (const subtype of Object.values(typeInfo.subtypes)) {
      allTypeTerms.push(subtype.accumulatedTerms);
    }
    typeInfo.accumulatedTerms = [...new Set(allTypeTerms.join(' ').split(' '))].join(' ');
    
    // Add base type keywords to term log
    for (const [lang, terms] of Object.entries(typeInfo.keywords)) {
      for (const term of terms) {
        vocabulary.termLog[term] = {
          typeCode: code,
          typeName,
          lang,
        };
      }
    }
    
    vocabulary.institutionTypes[code] = typeInfo;
    console.log(`  ✅ ${typeName}: ${Object.keys(typeInfo.subtypes).length} subtypes, ${typeInfo.accumulatedTerms.split(' ').length} total terms`);
  }
  
  // Add BASE_TYPE_KEYWORDS to termLog (common user search terms not in LinkML schemas)
  console.log('\n📖 Adding base vocabulary keywords to termLog...');
  let baseTermCount = 0;
  for (const [code, langKeywords] of Object.entries(BASE_TYPE_KEYWORDS)) {
    // Handle subtype codes like 'M.ART_MUSEUM' vs base codes like 'M'
    const isSubtype = code.includes('.');
    const baseCode = isSubtype ? code.split('.')[0] : code;
    const subtypeName = isSubtype ? code.split('.')[1] : undefined;
    
    const typeName = Object.entries(TYPE_FILE_TO_CODE).find(([name, c]) => c === baseCode)?.[0];
    if (!typeName) continue;
    
    for (const [lang, terms] of Object.entries(langKeywords)) {
      for (const term of terms) {
        // Don't overwrite existing entries from schema (they have more specific info)
        if (!vocabulary.termLog[term]) {
          const entry: TermLogEntry = {
            typeCode: baseCode,
            typeName,
            lang,
          };
          
          // Add subtype info if this is a subtype entry
          if (subtypeName) {
            entry.subtypeName = subtypeName;
          }
          
          vocabulary.termLog[term] = entry;
          baseTermCount++;
        }
      }
    }
  }
  console.log(`  ✅ Added ${baseTermCount} base vocabulary terms (including subtype keywords)`);
  
  // Process RecordSetTypes files
  console.log('\n📁 Processing RecordSetTypes files...');
  const recordSetTypesFiles = files.filter(f => f.endsWith('RecordSetTypes.yaml'));
  
  for (const file of recordSetTypesFiles) {
    const filePath = join(SCHEMA_DIR, file);
    const yamlData = parseYamlFile(filePath);
    if (!yamlData) continue;
    
    const classes = extractClassesFromYaml(yamlData);
    
    for (const cls of classes) {
      // Skip abstract base classes
      if (cls.className.endsWith('RecordSetType') && !cls.className.includes('Fonds') && 
          !cls.className.includes('Series') && !cls.className.includes('Collection')) {
        continue;
      }
      
      // Convert CamelCase to UPPER_SNAKE_CASE
      const rstName = cls.className
        .replace(/([a-z])([A-Z])/g, '$1_$2')
        .toUpperCase();
      const keywords = extractKeywordsFromClass(cls);
      
      const rstInfo: RecordSetTypeInfo = {
        className: cls.className,
        accumulatedTerms: accumulateTerms(keywords),
        keywords,
      };
      
      vocabulary.recordSetTypes[rstName] = rstInfo;
      
      // Add to term log
      for (const [lang, terms] of Object.entries(keywords)) {
        for (const term of terms) {
          vocabulary.termLog[term] = {
            typeCode: 'A', // Most record set types are archive-related
            typeName: 'ArchiveOrganizationType',
            recordSetType: rstName,
            lang,
          };
        }
      }
    }
  }
  
  console.log(`  ✅ Extracted ${Object.keys(vocabulary.recordSetTypes).length} record set types`);
  
  // Generate Tier 1 embeddings (Types file level)
  console.log('\n🧮 Generating Tier 1 embeddings (Types files)...');
  for (const [code, typeInfo] of Object.entries(vocabulary.institutionTypes)) {
    const embedding = await generateEmbedding(typeInfo.accumulatedTerms, skipEmbeddings);
    vocabulary.tier1Embeddings[typeInfo.className] = embedding;
    console.log(`  ✓ ${typeInfo.className}: ${embedding.length} dimensions`);
  }
  
  // Generate Tier 2 embeddings (individual subtypes)
  console.log('\n🧮 Generating Tier 2 embeddings (subtypes)...');
  for (const [code, typeInfo] of Object.entries(vocabulary.institutionTypes)) {
    vocabulary.tier2Embeddings[code] = {};
    
    for (const [subtypeName, subtypeInfo] of Object.entries(typeInfo.subtypes)) {
      const embedding = await generateEmbedding(subtypeInfo.accumulatedTerms, skipEmbeddings);
      vocabulary.tier2Embeddings[code][subtypeName] = embedding;
    }
    
    console.log(`  ✓ ${typeInfo.className}: ${Object.keys(typeInfo.subtypes).length} subtype embeddings`);
  }
  
  return vocabulary;
}

// ============================================================================
// Main Entry Point
// ============================================================================

async function main() {
  console.log('═══════════════════════════════════════════════════════════════');
  console.log('  TypesVocabulary Extraction Script');
  console.log('  Ontology-Driven Cache Segmentation (Rule 46)');
  console.log('═══════════════════════════════════════════════════════════════\n');
  
  const vocabulary = await processTypeFiles();
  
  // Ensure output directory exists
  const outputDir = dirname(OUTPUT_FILE);
  if (!existsSync(outputDir)) {
    mkdirSync(outputDir, { recursive: true });
  }
  
  // Write output
  writeFileSync(OUTPUT_FILE, JSON.stringify(vocabulary, null, 2));
  
  console.log('\n═══════════════════════════════════════════════════════════════');
  console.log('  Summary');
  console.log('═══════════════════════════════════════════════════════════════');
  console.log(`  📊 Institution Types: ${Object.keys(vocabulary.institutionTypes).length}`);
  console.log(`  📊 Total Subtypes: ${Object.values(vocabulary.institutionTypes).reduce((sum, t) => sum + Object.keys(t.subtypes).length, 0)}`);
  console.log(`  📊 Record Set Types: ${Object.keys(vocabulary.recordSetTypes).length}`);
  console.log(`  📊 Term Log Entries: ${Object.keys(vocabulary.termLog).length}`);
  console.log(`  📊 Tier 1 Embeddings: ${Object.keys(vocabulary.tier1Embeddings).length}`);
  console.log(`  📊 Tier 2 Embeddings: ${Object.values(vocabulary.tier2Embeddings).reduce((sum, t) => sum + Object.keys(t).length, 0)}`);
  console.log(`\n  ✅ Output written to: ${OUTPUT_FILE}`);
  console.log('═══════════════════════════════════════════════════════════════\n');
}

main().catch(console.error);