import type { ResultSetHeader, RowDataPacket } from 'mysql2'
import { db, DB } from './db'
import { cleanPostHtml } from './forum-sanitize'

export async function createTopic(
  forumId: number,
  name: string,
  poster: string,
  posterId: number,
  text: string,
): Promise<number> {
  const clean = cleanPostHtml(text)
  const [res] = await db(DB.web).query<ResultSetHeader>(
    'INSERT INTO forum_topics (forum_id, name, poster, poster_id, created, created_at, updated_at, locked, sticky, deleted) ' +
      'VALUES (?, ?, ?, ?, NOW(), NOW(), NOW(), 0, 0, 0)',
    [forumId, name, poster, posterId],
  )
  const topicId = res.insertId
  await db(DB.web).query(
    'INSERT INTO forum_posts (topic_id, poster, poster_id, text, time, created_at, deleted) VALUES (?, ?, ?, ?, NOW(), NOW(), 0)',
    [topicId, poster, posterId, clean],
  )
  return topicId
}

export async function createPost(
  topicId: number,
  poster: string,
  posterId: number,
  text: string,
): Promise<number> {
  const clean = cleanPostHtml(text)
  const [res] = await db(DB.web).query<ResultSetHeader>(
    'INSERT INTO forum_posts (topic_id, poster, poster_id, text, time, created_at, deleted) VALUES (?, ?, ?, ?, NOW(), NOW(), 0)',
    [topicId, poster, posterId, clean],
  )
  await db(DB.web).query('UPDATE forum_topics SET updated_at = NOW() WHERE id = ?', [topicId])
  return res.insertId
}

/** Comprueba que un foro existe y es visible (para crear tema). */
export async function forumIsPostable(forumId: number): Promise<boolean> {
  const [rows] = await db(DB.web).query<RowDataPacket[]>(
    'SELECT id FROM forums WHERE id = ? AND visibility = 1 AND deleted = 0',
    [forumId],
  )
  return Boolean(rows[0])
}

/** Comprueba que un tema existe y no está cerrado (para responder). */
export async function topicIsReplyable(topicId: number): Promise<boolean> {
  const [rows] = await db(DB.web).query<RowDataPacket[]>(
    'SELECT locked FROM forum_topics WHERE id = ? AND deleted = 0',
    [topicId],
  )
  return Boolean(rows[0] && rows[0].locked !== 1)
}