import dbClient from "../db/index.js";

export default class OptionController {
  static async getAll() {
    let queryText = 'SELECT * FROM blog_options';
    try {
      const res = await dbClient.query(queryText);
      return res.rows;
    } catch (err) {
      console.log(err);
      return [];
    }
  }

  static async get(name) {
    const res = await dbClient.query({
      text: 'SELECT value FROM blog_options WHERE name=$1',
      values: [name]
    });

    if (res.rows[0]) {
      return res.rows[0].value;
    }

    console.log('[OptionController] cannot find option ', name);
    return null;
  }

  static async create(name, value) {
    const res = await dbClient.query({
      text: 'INSERT INTO blog_options(name, value) VALUES($1, $2)',
      values: [name, value]
    });
    console.log('[OptionController] create:', res.rows);
  }
  
  static async update(name, value) {
    try {
      const res = await dbClient.query({
        text: 'UPDATE blog_options SET value = $2 WHERE name = $1',
        values: [name, value]
      });
      return res.rows;
    } catch(err) {
      console.error('[OptionController] update error: ', err);
    }
  }
  
  static async delete(name) {
    try {
      const res = dbClient.query({
        text: 'DELETE FROM blog_options WHERE name=$1',
        values: [name]
      });
      return res.rows;
    } catch(err) {
      console.error('[OptionController] delete error: ', err);
    }
  }
}