'use strict';

let Adapter = require('../Adapter'),
	getArgs = require('getargs'),
	promisify = require('../promisify');

module.exports = class mysql extends Adapter {
	/**
	 * Run the sql query as a prepared statement
	 *
	 * @param {String} sql - The sql with placeholders
	 * @param {Array} params - The values to insert into the query
	 * @param {Function} [callback] - Callback to run when a response is recieved
	 * @return {void|Promise} - Returns a promise if no callback is provided
	 */
	execute(sql, params, callback) {
		let args = getArgs('sql:string, [params]:array, [callback]:function', arguments);

		if (! args.callback) {
			return promisify(this.instance.query)(args.sql, args.params);
		}

		return this.instance.query(args.sql, args.params, args.callback);
	}
};