import { Database } from "bun:sqlite";
import { wordFactorial } from "./utils";

// read

export function fetchResource(db: Database, spelling: string) {
  const query = db.query(`
    SELECT 
      spelling,
      ipa,
      frequency,
      type,
      subtype,
      GROUP_CONCAT(c.name, ',') AS category,
    FROM expressions
    JOIN word_categories wc ON wc.word_id = words.id
    JOIN categories c ON c.id = wc.category_id
    WHERE spelling = $spelling
    GROUP BY words.id
    `);
  return query.get({ spelling });
}
export function fetchFrequent(db: Database, count: number, page: number) {
  const offset = (page - 1) * count;
  const query = db.query(`
    SELECT 
      spelling,
      ipa,
      frequency,
      GROUP_CONCAT(c.name, ',') AS category,
    FROM expressions e
    JOIN word_categories wc ON wc.word_id = e.id
    JOIN categories c ON c.id = wc.category_id
    ORDER BY e.frequency DESC
    LIMIT $count
    OFFSET $offset
    `);
  return query.get({ count, offset });
}
export function fetchLessons(db: Database, count: number, page: number) {
  const p = page < 1 ? 1 : page;
  const offset = (p - 1) * count;
  const queryString = `
    SELECT 
      l.id, l.text as ltext, cards.text as ctext, cards.note as cnote, cards.id as cid,
      e.spelling, e.ipa, e.frequency, e.id as eid,
      GROUP_CONCAT(cg.name, ',') AS category
    FROM expressions e 
    JOIN cards_expressions ce ON e.id = ce.expression_id
    JOIN cards ON cards.id = cl.card_id
    JOIN cards_lessons cl ON cl.card_id = cards.id
    JOIN lessons l ON l.id = cl.lesson_id
    JOIN expressions e ON e.id = ce.expression_id
    JOIN word_categories wc ON wc.word_id = e.id
    JOIN categories cg ON cg.id = wc.category_id
    LIMIT $count
    OFFSET $offset
    `;
  // const queryString = `
  //   SELECT
  //     l.id, l.text as ltext, cards.text as ctext, cards.note as cnote, cards.id as cid
  //   FROM cards_lessons cl
  //   JOIN lessons l ON l.id = cl.lesson_id
  //   JOIN cards ON cards.id = cl.card_id
  //   LIMIT $count
  //   OFFSET $offset
  //   `;
  const query = db.query(queryString);
  const res = query.all({ count, offset });
  return res;
}

// SELECT l.id, l.text, cards.text, cards.note FROM cards_lessons cl LEFT JOIN lessons l ON l.id = cl.lesson_id LEFT JOIN cards ON cards.id = cl.card_id ORDER BY l.id ASC LIMIT 20 OFFSET 0;
export function fetchLesson(db: Database, lesson: number) {
  const queryString = `
    SELECT 
      l.id, l.text, cards.text, cards.note, cards.id as cid, 
      spelling, ipa, frequency, e.id as eid,
      GROUP_CONCAT(cg.name, ',') AS category
    FROM cards_lessons cl
    JOIN lessons l ON l.id = cl.lesson_id
    JOIN cards ON cards.id = lc.card_id
    JOIN cards_expressions ce ON cards.id = ce.card_id
    JOIN expressions e ON e.id = ce.expression_id
    JOIN word_categories wc ON wc.word_id = e.id
    JOIN categories cg ON cg.id = wc.category_id
    WHERE l.id = $lesson 
    `;
  console.log(queryString);
  const query = db.query(queryString);
  return query.all({ lesson });
}
export function fetchCard(db: Database, cid: number, userid: number) {
  const query = db.query(`
    SELECT 
      l.id, l.text, cards.text, cards.note
    FROM cards_lessons cl
    JOIN lessons l ON l.id = cl.lesson_id
    JOIN cards ON cards.id = lc.card_id
    JOIN attempts a ON a.card_id = cards.id AND a.user_id = $userid 
    WHERE cards.id = $cid
    `);
  return query.all({ cid, userid });
}

// write
export function addLesson(db: Database, text: string) {
  const query = db.query(`
    INSERT 
    INTO lessons(text) 
    VALUES($text)
  `);
  const res = query.run({ text });
  return res.lastInsertRowid;
}
export function addCard(
  db: Database,
  lesson_id: number | bigint | null,
  text: string,
  mnote?: string,
) {
  const note = mnote ? mnote : null;
  const query = db.query(`
    INSERT 
    INTO cards(text, note) 
    VALUES($text, $note)
  `);
  const params = { text, note, spel: text };
  const res = query.run(params);
  const cid = res.lastInsertRowid;
  const wquery = db.query(`
    INSERT OR IGNORE
    INTO cards_expressions(card_id, expression_id)
    VALUES($cid, (
      SELECT id FROM expressions e
      WHERE e.spelling LIKE $spelling 
    ))
    `);
  const wtr = db.transaction((pairs) => {
    for (const pair of pairs) wquery.run(pair);
  });
  const words = text
    .replace(/[^\w\s]/g, "")
    .replace(/\s+/g, " ")
    .trim()
    .split(" ");
  const combinations = wordFactorial(words);
  const richWords = combinations.map((spelling) => {
    return { spelling, cid };
  });
  wtr(richWords);
  if (lesson_id) {
    const query = db.query(`
      INSERT INTO cards_lessons(card_id, lesson_id)
      VALUES($cid, $lesson_id)
      `);
    query.run({ lesson_id, cid });
  }
}

export function addUser(db: Database, name: string, creds: string) {
  const query = db.query(`
    INSERT 
    INTO users(name, creds) 
    VALUES($name, $creds)
  `);
  query.run({ $name: name, $creds: creds });
}

export function addWord(
  db: Database,
  spelling: string,
  ipa: string,
  language: string,
  type: string,
  subtype: string | null,
) {
  const queryString = `
  INSERT
  INTO expressions(spelling, ipa, type, subtype, frequency, language_id)
  VALUES($spelling, $ipa, $type, $subtype, 0, (
      SELECT id FROM languages
      WHERE name = $language
  ))
  `;
  const query = db.prepare(queryString);
  const res = query.run({ spelling, ipa, language, type, subtype });
  return res.lastInsertRowid;
}
export function addCat(db: Database, wordId: number | bigint, domain: string) {
  const queryString = `
  INSERT
  INTO word_categories(word_id, category_id)
  VALUES($wordId, (
      SELECT id FROM categories
      WHERE name = $category
  ))
  `;
  const category = domains[domain] || "unknown";
  const query = db.query(queryString);
  const res = query.run({ wordId, category });
  return res.lastInsertRowid;
}

const domains: Record<string, string> = {
  "adj.all": "adjective",
  "adj.pert": "adjective",
  "adj.ppl": "adjective",
  "adv.all": "adverb",
  "noun.Tops": "",
  "noun.act": "abstract",
  "noun.animal": "animate",
  "noun.artifact": "inanimate",
  "noun.attribute": "abstract",
  "noun.body": "inanimate",
  "noun.cognition": "abstract",
  "noun.communication": "abstract",
  "noun.event": "abstract",
  "noun.feeling": "abstract",
  "noun.food": "inanimate",
  "noun.group": "noun",
  "noun.location": "spatial",
  "noun.motive": "abstract",
  "noun.object": "inanimate",
  "noun.person": "animate",
  "noun.phenomenon": "abstract",
  "noun.plant": "noun",
  "noun.possession": "noun",
  "noun.process": "noun",
  "noun.quantity": "uncountable",
  "noun.relation": "noun",
  "noun.shape": "noun",
  "noun.state": "noun",
  "noun.substance": "uncountable",
  "noun.time": "temporal",
  "verb.body": "verb",
  "verb.change": "verb",
  "verb.cognition": "verb",
  "verb.communication": "verb",
  "verb.competition": "verb",
  "verb.consumption": "verb",
  "verb.contact": "verb",
  "verb.creation": "verb",
  "verb.emotion": "mental",
  "verb.motion": "verb",
  "verb.perception": "mental",
  "verb.possession": "verb",
  "verb.social": "verb",
  "verb.stative": "verb",
  "verb.weather": "verb",
};
export function addFrequency(
  db: Database,
  spelling: string,
  frequency: number,
) {
  const queryString = `
  UPDATE expressions
  SET frequency = $frequency
  WHERE expressions.spelling = $spelling
  `;
  const query = db.query(queryString);
  const res = query.run({ spelling, frequency });
  console.log(res, "added frequency");
}