import { Database } from "bun:sqlite";

const PROSODY_DB = "/home/y/code/bun/ssr/claudesorlang/bulkdata/prosody.db";
const THAIPHON_DB = "/home/y/code/bun/ssr/claudesorlang/bulkdata/thaiphon.db";
const UNIFIED_DB = "/home/y/code/bun/ssr/claudesorlang/bulkdata/unified.db";

async function migrateSenses() {
  console.log("Starting database migration to unified.db...\n");
  const expressionIdMap: Map<number, number> = new Map();
  const senseIdMap: Map<number, number> = new Map();
  const wordExpressionMap: Map<number, number> = new Map();

  // Open all databases
  const prosodyDb = new Database(PROSODY_DB, { readonly: true });
  const thaiphonDb = new Database(THAIPHON_DB, { readonly: true });
  const unifiedDb = new Database(UNIFIED_DB);

  // Enable foreign keys and WAL mode for unified database
  unifiedDb.run("PRAGMA foreign_keys = ON");
  unifiedDb.run("PRAGMA journal_mode = WAL");

  try {
    // Start transaction for atomic migration
    unifiedDb.run("BEGIN TRANSACTION");

    console.log("📦 Migrating from prosody.db...");

    // 1. Migrate languages (combining both sources, preferring prosody.db)
    console.log("  → Migrating categories...");
    // categories
    const prosodyCats = prosodyDb
      .query("SELECT * FROM categories")
      .all() as any[];
    const insertCat = unifiedDb.prepare(
      `INSERT INTO categories (name) VALUES (?)
         ON CONFLICT(name) DO NOTHING
         RETURNING rowid
        `,
    );
    for (const cat of prosodyCats) {
      const cr = insertCat.run(cat.name.toLowerCase().trim());
      // console.log({ cr });
      if (cr.changes !== 1) console.log({ cr });
    }
    console.log(`    ✓ Migrated ${prosodyCats.length} categories`);

    console.log("  → Migrating languages...");
    const prosodyLangs = prosodyDb
      .query("SELECT * FROM languages")
      .all() as any[];

    // Add thaiphon languages first
    // Override with prosody languages (they have more complete data)
    for (const lang of prosodyLangs) {
      // Insert merged languages
      const insertLang = unifiedDb.prepare(
        "INSERT OR IGNORE INTO languages (code, name, native_name, iso6392) VALUES (?, ?, ?, ?)",
      );

      insertLang.run(lang.code, lang.name, lang.native_name, null);
    }
    console.log(`    ✓ Migrated ${prosodyLangs.length} languages`);

    // 2. Migrate expressions from prosody.db
    console.log("  → Migrating expressions...");
    const expressions = prosodyDb
      .query("SELECT * FROM expressions")
      .all() as any[];
    const insertExpression = unifiedDb.prepare(
      "INSERT INTO expressions (spelling, lang, frequency, type, notes) VALUES (?, ?, ?, ?, ?)",
    );

    for (const expr of expressions) {
      const ei = insertExpression.run(
        expr.spelling,
        expr.lang,
        expr.frequency,
        expr.type,
        expr.notes,
      );
      if (ei.changes > 0)
        expressionIdMap.set(expr.id, Number(ei.lastInsertRowid));
    }

    const insertExample = unifiedDb.prepare(
      "INSERT INTO examples(sid, example, ref) VALUES (?, ?, ?)",
    );
    const insertSubsense = unifiedDb.prepare(
      "INSERT INTO subsenses (sid, gloss) VALUES (?, ?)",
    );
    const insertDerivation = unifiedDb.prepare(
      "INSERT INTO derivation (sid, type, text) VALUES (?, ?, ?)",
    );
    const insertCatw = unifiedDb.prepare(
      "INSERT OR IGNORE INTO word_categories(category, word_id) VALUES (?, ?)",
    );
    const insertWp = unifiedDb.prepare(
      "INSERT INTO word_phonetics(word_id, sense_id, ipa, ipa_sequence, syllable_count, syllable_sequence, stressed, tone_sequence, tag, notes) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
    );
    console.log("  → Migrating senses...");
    const senses = prosodyDb.query("SELECT * FROM senses").all() as any[];
    const insertSense = unifiedDb.prepare(
      "INSERT INTO senses (parent_id, spelling, pos, etymology, confidence) VALUES (?, ?, ?, ?, ?)",
    );

    for (const sense of senses) {
      const parentId = expressionIdMap.get(sense.parent_id);
      const senseRow = insertSense.run(
        parentId,
        sense.spelling,
        sense.pos,
        sense.etymology,
        sense.confidence,
      );
      const senseId = senseRow.lastInsertRowid;
      senseIdMap.set(sense.id, Number(senseId));
      const deriv = (
        name: string,
        type: Array<{ word: string }> | undefined,
      ) => {
        if (type)
          for (const t of type) insertDerivation.run(senseId, name, t.word);
      };
      const subsenses = JSON.parse(sense.senses);
      for (const ss of subsenses) {
        const {
          examples,
          glosses,
          tags,
          synonyms,
          antonyms,
          hypernyms,
          meronyms,
          hyponyms,
          holonyms,
        } = ss;
        if (examples)
          for (const ex of examples) {
            const ref = ex.ref || null;

            if (ex.text) insertExample.run(senseId, ex.text, ref);
            // else console.log("bad example", ex);
          }
        if (glosses)
          for (const gloss of glosses) insertSubsense.run(senseId, gloss);
        if (tags)
          for (const tag of tags) {
            const lw = tag.toLowerCase().trim();
            insertCat.run(lw);
            insertCatw.run(lw, senseId);
          }
        if (synonyms) deriv("synonym", synonyms);
        if (antonyms) deriv("antonym", antonyms);
        if (hypernyms) deriv("hypernym", hypernyms);
        if (meronyms) deriv("meronym", meronyms);
        if (hyponyms) deriv("hyponym", hyponyms);
        if (holonyms) deriv("holonym", holonyms);
      }
      const prosody = JSON.parse(sense.prosody);
      const stressed = prosody?.stressedSyllable || null;
      if (!sense.ipa) {
        console.log("no ipa", sense);
        continue;
      }
      const ipa = JSON.parse(sense.ipa);
      for (const ip of ipa) {
        insertWp.run(
          parentId,
          senseId,
          ip.ipa,
          ip.ipa,
          0,
          "",
          stressed,
          "",
          ip.tag,
          null,
        );
      }
    }
    console.log(`    ✓ Migrated ${senses.length} senses`);

    console.log("\n📦 Migrating from thaiphon.db...");

    // 6. Migrate phonetic components from thaiphon.db
    console.log("  → Migrating phonetic components...");

    // Tones
    const tones = thaiphonDb.query("SELECT * FROM tones").all() as any;
    const insertTone = unifiedDb.prepare(
      "INSERT INTO tones (id, ipa, lang, name, nums) VALUES (?, ?, ?, ?, ?)",
    );
    for (const tone of tones) {
      insertTone.run(tone.id, tone.ipa, tone.lang, tone.name, tone.nums);
    }
    console.log(`    ✓ Migrated ${tones.length} tones`);

    // Onsets
    const onsets = thaiphonDb.query("SELECT * FROM onsets").all() as any;
    const insertOnset = unifiedDb.prepare(
      "INSERT INTO onsets (id, ipa, text, lang) VALUES (?, ?, ?, ?)",
    );
    for (const onset of onsets) {
      insertOnset.run(onset.id, onset.ipa, onset.text, onset.lang);
    }
    console.log(`    ✓ Migrated ${onsets.length} onsets`);

    // Medials
    const medials = thaiphonDb.query("SELECT * FROM medials").all() as any;
    const insertMedial = unifiedDb.prepare(
      "INSERT INTO medials (id, ipa, text, lang) VALUES (?, ?, ?, ?)",
    );
    for (const medial of medials) {
      insertMedial.run(medial.id, medial.ipa, medial.text, medial.lang) as any;
    }
    console.log(`    ✓ Migrated ${medials.length} medials`);

    // Nucleus
    const nucleus = thaiphonDb.query("SELECT * FROM nucleus").all() as any;
    const insertNucleus = unifiedDb.prepare(
      "INSERT INTO nucleus (id, ipa, text, lang) VALUES (?, ?, ?, ?)",
    );
    for (const nucl of nucleus) {
      insertNucleus.run(nucl.id, nucl.ipa, nucl.text, nucl.lang);
    }
    console.log(`    ✓ Migrated ${nucleus.length} nucleus`);

    // Codas
    const codas = thaiphonDb.query("SELECT * FROM codas").all() as any;
    const insertCoda = unifiedDb.prepare(
      "INSERT INTO codas (id, ipa, text, lang) VALUES (?, ?, ?, ?)",
    );
    for (const coda of codas) {
      insertCoda.run(coda.id, coda.ipa, coda.text, coda.lang) as any;
    }
    console.log(`    ✓ Migrated ${codas.length} codas`);

    // Rhymes
    const rhymes = thaiphonDb.query("SELECT * FROM rhymes").all() as any;
    const insertRhyme = unifiedDb.prepare(
      "INSERT INTO rhymes (id, ipa, text, lang) VALUES (?, ?, ?, ?)",
    );
    for (const rhyme of rhymes) {
      insertRhyme.run(rhyme.id, rhyme.ipa, rhyme.text, rhyme.lang);
    }
    console.log(`    ✓ Migrated ${rhymes.length} rhymes`);

    // 7. Migrate syllables from thaiphon.db
    console.log("  → Migrating syllables...");
    const syllables = thaiphonDb.query("SELECT * FROM syllables").all() as any;
    const insertSyllable = unifiedDb.prepare(
      "INSERT INTO syllables (id, lang, ipa, long, text, onset, medial, nucleus, coda, rhyme, tone, notes) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?, ?)",
    );
    for (const syl of syllables) {
      insertSyllable.run(
        syl.id,
        syl.lang,
        syl.ipa,
        syl.long,
        syl.text,
        syl.onset,
        syl.medial,
        syl.nucleus,
        syl.coda,
        syl.rhyme,
        syl.tone,
        syl.notes,
      );
    }
    console.log(`    ✓ Migrated ${syllables.length} syllables`);

    // 8. Migrate words from thaiphon.db (as expressions if not exists)
    console.log("  → Migrating words as expressions...");
    const words = thaiphonDb.query("SELECT * FROM words").all() as any[];
    const insertWordAsExpr = unifiedDb.query(
      `INSERT INTO expressions (spelling, lang, frequency, type, notes) VALUES (?, ?, ?, ?, ?)
      ON CONFLICT(spelling, lang) DO UPDATE SET spelling = excluded.spelling
      RETURNING rowid`,
    );

    // Also keep track for syllables_words mapping
    let prev: any = null;
    for (const word of words) {
      const result = insertWordAsExpr.get(
        word.spelling,
        word.lang,
        word.frequency,
        "word",
        word.notes,
      ) as { id: number };
      // 41085
      console.log({ result });
      // if (prev === result.id) {
      //   console.log(word, result);
      //   throw new Error("fucked up again");
      // }
      // prev = result.id;
      wordExpressionMap.set(word.id, result.id);
    }
    console.log(`    ✓ Processed ${words.length} words`);

    console.log("  → Migrating word phonetics...");
    const wordPhonetics = thaiphonDb
      .query("SELECT * FROM word_phonetics")
      .all() as any[];
    const insertWordPhonetic = unifiedDb.prepare(
      "INSERT INTO word_phonetics (word_id, sense_id, ipa, syllable_count, syllable_sequence, tone_sequence, ipa_sequence, tag, notes) VALUES (?, ?, ?, ?, ?, ?, ?, ?, ?)",
    );
    // TODO find the sense id later I guess
    const wpMap: Map<number, number> = new Map();
    for (const wp of wordPhonetics) {
      const newWordId = wordExpressionMap.get(wp.word_id);
      if (newWordId) {
        const wr = insertWordPhonetic.run(
          newWordId,
          null,
          wp.ipa,
          wp.syllable_count,
          wp.syllable_sequence,
          wp.tone_sequence,
          wp.ipa_sequence,
          wp.tag,
          wp.notes,
        );
        if (wr.changes !== 0) wpMap.set(wp.word_id, Number(wr.lastInsertRowid));
      }
    }

    // 9. Migrate syllables_words junction
    console.log("  → Migrating syllables_words...");
    const sylWords = thaiphonDb
      .query("SELECT * FROM syllables_words")
      .all() as any;
    const insertSylWord = unifiedDb.prepare(
      "INSERT OR IGNORE INTO syllables_words (syl_id, word_id, idx, stressed) VALUES (?, ?, ?, ?)",
    );
    for (const sw of sylWords) {
      const newWordId = wpMap.get(sw.word_id);
      if (newWordId)
        insertSylWord.run(sw.syl_id, newWordId, sw.idx, sw.stressed);
    }
    console.log(
      `    ✓ Migrated ${sylWords.length} syllable-word relationships`,
    );

    unifiedDb.run("COMMIT");

    console.log("\n✅ Migration completed successfully!");
    console.log("   Unified database is ready at:", UNIFIED_DB);
  } catch (error) {
    console.error("\n❌ Migration failed:", error);
    unifiedDb.run("ROLLBACK");
    throw error;
  } finally {
    // Close all databases
    prosodyDb.close();
    // thaiphonDb.close();
    unifiedDb.close();
  }
}

// Run the migration
migrateSenses();
// migrateTones();
// test();
//

async function test() {
  console.log("Starting database migration to unified.db...\n");
  // Open all databases
  const prosodyDb = new Database(PROSODY_DB, { readonly: true });
  const thaiphonDb = new Database(THAIPHON_DB, { readonly: true });
  const unifiedDb = new Database(UNIFIED_DB, { readonly: true });

  // Enable foreign keys and WAL mode for unified database
  unifiedDb.run("PRAGMA foreign_keys = ON");
  unifiedDb.run("PRAGMA journal_mode = WAL");
  const oldE = prosodyDb.query("SELECT COUNT(*) FROM expressions").get();
  const oldS = prosodyDb.query("SELECT COUNT(*) FROM senses").get();
  const oldW = thaiphonDb.query("SELECT COUNT(*) FROM words").get();
  const oldWp = thaiphonDb.query("SELECT COUNT(*) FROM word_phonetics").get();
  const oldSw = thaiphonDb.query("SELECT COUNT(*) FROM syllables_words").get();
  const oldSy = thaiphonDb.query("SELECT COUNT(*) FROM syllables").get();
  const oldTo = thaiphonDb.query("SELECT COUNT(*) FROM tones").get();
  const oldCod = thaiphonDb.query("SELECT COUNT(*) FROM codas").get();
  const oldNuc = thaiphonDb.query("SELECT COUNT(*) FROM nucleus").get();
  const oldOns = thaiphonDb.query("SELECT COUNT(*) FROM onsets").get();
  const oldRhy = thaiphonDb.query("SELECT COUNT(*) FROM rhymes").get();
  const oldWrh = thaiphonDb.query("SELECT COUNT(*) FROM word_rhymes").get();
  const oldWry = thaiphonDb.query("SELECT COUNT(*) FROM words_wrhymes").get();
  const newSw = unifiedDb.query("SELECT COUNT(*) FROM syllables_words").get();
  const newSy = unifiedDb.query("SELECT COUNT(*) FROM syllables").get();
  const newTo = unifiedDb.query("SELECT COUNT(*) FROM tones").get();
  const newCod = unifiedDb.query("SELECT COUNT(*) FROM codas").get();
  const newNuc = unifiedDb.query("SELECT COUNT(*) FROM nucleus").get();
  const newOns = unifiedDb.query("SELECT COUNT(*) FROM onsets").get();
  const newRhy = unifiedDb.query("SELECT COUNT(*) FROM rhymes").get();
  const newWrh = unifiedDb.query("SELECT COUNT(*) FROM word_rhymes").get();
  const newWry = unifiedDb.query("SELECT COUNT(*) FROM words_wrhymes").get();
  const newE = unifiedDb.query("SELECT COUNT(*) FROM expressions").get();
  const newS = unifiedDb.query("SELECT COUNT(*) FROM senses").get();
  const newWp = unifiedDb.query("SELECT COUNT(*) FROM word_phonetics").get();
  console.log({
    oldE,
    oldS,
    oldW,
    oldWp,
    newE,
    newS,
    newWp,
    oldSw,
    oldSy,
    oldTo,
    oldCod,
    oldNuc,
    oldOns,
    oldRhy,
    oldWrh,
    oldWry,
    newSw,
    newSy,
    newTo,
    newCod,
    newNuc,
    newOns,
    newRhy,
    newWrh,
    newWry,
  });
}