import { Request, Response } from "express";
import DynamicQueryBuilder from "../../helpers/dynamicQueryBuilder";

/**
 * @description get all table metas
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getAllTableMeta(req: Request, res: Response): Promise<any> {
  let tableMetas = DynamicQueryBuilder.getAllTableMeta();

  res.json(tableMetas);
}

/**
 * @description get meta by tablename
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function getTableMetaByTablename(req: Request, res: Response): Promise<any> {
  const tablename = req.params.tablename;
  let tableMeta = DynamicQueryBuilder.getTableMeta(tablename);

  res.json(tableMeta);
}

/**
 * @description execute Query
 * @param req {Request} Express req object
 * @param res {Response} Express res object
 * @returns {Promise<*>}
 */
export async function executeQuery(req: Request, res: Response): Promise<any> {
  let offset = parseInt((req.query.offset as string) ?? "0");
  let count = parseInt((req.query.count as string) ?? "25");
  const query = req.body.query;

  try {
    let [rows, total] = await DynamicQueryBuilder.buildQuery(query, offset, count).getManyAndCount();

    res.json({
      rows: rows,
      total: total,
      offset: offset,
      count: count,
    });
  } catch (error) {
    res.status(500).send({
      json: error.sql,
      code: error.code,
      msg: error.sqlMessage,
    });
  }
}