import { NextFunction, Request, Response } from 'express';
import logging from '../../config/logging';
import config from '../../config/config';
const mysql = require('mysql');
const util = require('util');
import header from '../../middleware/apiHeader';
import { ResultSuccess } from '../../classes/response/resultsuccess';
import { ResultError } from '../../classes/response/resulterror';

var connection = mysql.createConnection({
    host: config.mysql.host,
    user: config.mysql.user,
    password: config.mysql.pass,
    database: config.mysql.database
});

const query = util.promisify(connection.query).bind(connection);
const beginTransaction = util.promisify(connection.beginTransaction).bind(connection);
const commit = util.promisify(connection.commit).bind(connection);
const rollback = util.promisify(connection.rollback).bind(connection);

const NAMESPACE = 'Banks';

const getBanks = async (req: Request, res: Response, next: NextFunction) => {
    try {
        logging.info(NAMESPACE, 'Getting Banks');
        var requiredFields = [];
        var validationResult = header.validateRequiredFields(req, requiredFields);
        if (validationResult && validationResult.statusCode == 200) {
            let authorizationResult = await header.validateAuthorization(req, res, next);
            if (authorizationResult.statusCode == 200) {
                let sql = "CALL dsaBazarGetBanks()";
                let result = await query(sql);
                if (result && result.length > 0) {
                    if (result[0] && result[0].length > 0) {
                        let successResult = new ResultSuccess(200, true, 'Get Banks', result[0], result[0].length);
                        return res.status(200).send(successResult);
                    }
                } else {
                    let errorResult = new ResultError(400, true, "banks.getBanks() Error", result, '');
                    next(errorResult);
                }
            } else {
                let errorResult = new ResultError(401, true, "Unauthorized request", authorizationResult, '');
                next(errorResult);
            }
        } else {
            let errorResult = new ResultError(validationResult.statusCode, true, validationResult.message, new Error(validationResult.message), '');
            next(errorResult);
        }
    } catch (error) {
        let errorResult = new ResultError(500, true, 'banks.getBanks() Exception', error, '');
        next(errorResult);
    }
};

export default { getBanks };