<?php
/**
 * Created by PhpStorm.
 * User: whwyy
 * Date: 2018/3/26 0026
 * Time: 10:22
 */

namespace wchat\qq;

use Exception;
use wchat\common\HttpClient;
use wchat\common\Result;
use wchat\common\Help;

class Recharge extends SmallProgram
{
	private $money = 0;

	private $orderNo;

	private $data = [];

	private $spill_create_ip = '';

	private $uniformer = 'https://qpay.qq.com/cgi-bin/pay/qpay_unified_order.cgi';

	/**
	 * @param string $value
	 */
	public function setSpillCreateIp(string $value)
	{
		$this->spill_create_ip = $value;
	}

	/**
	 * @param int $money
	 * @param string $orderNo
	 * @param string $openId
	 * @return array|mixed|Result
	 * @throws
	 */
	public function recharge(int $money, string $orderNo, $openId = '')
	{
		if ($money < 0) {
			return new Result(['code' => 500, 'message' => '充值金额不能小于0.']);
		}
		$this->money = $money;
		$this->orderNo = $orderNo;
		$this->data['openid'] = $openId;

		$this->request->setCallback(function ($result, $body) {
			$data = Help::toArray($result);
			if (isset($data['sign'])) {
				$sign = $data['sign'];
				unset($data['sign']);
			}
			if (!isset($sign)) {
				$return['code'] = -1;
				$return['message'] = '返回数据签名验证失败';
			} else {
				$return['code'] = 0;
				$return['data'] = $data;
				$return['data']['postBody'] = $body;
				if ($data['return_code'] == 'FAIL') {
					$return['code'] = -1;
					$return['message'] = $data['return_msg'];
				}
			}
			return new Result($return);
		});
		return $this->send($this->uniformer, $this->builder());
	}

	/**
	 * @return string
	 */
	protected function builder()
	{
		$data = [
			'appid'            => $this->config->getAppid(),
			'mch_id'           => $this->config->getMchId(),
			'nonce_str'        => Help::random(32),
			'body'             => $this->config->getBody(),
			'out_trade_no'     => $this->orderNo,
			'total_fee'        => $this->money,
			'spbill_create_ip' => $this->spill_create_ip,
			'notify_url'       => $this->config->getNotifyUrl(),
			'trade_type'       => $this->config->getTradeType(),
		];

		$this->data = array_merge($data, $this->data);

		$key = $this->config->getKey();
		$sign_type = $this->config->getSignType();

		$this->data['sign_type'] = $this->config->getSignType();
		$this->data['sign'] = Help::sign($this->data, $key, $sign_type);

		return Help::toXml($this->data);
	}

	/**
	 * @param $url
	 * @param $data
	 * @return array|mixed|Result
	 * @throws Exception
	 */
	private function send($url, $data)
	{
		$this->request->setIsSSL(true);
		$this->request->setMethod(HttpClient::POST);
		$this->request->addHeader('Content-Type', 'text/xml');
		return $this->request->send($url, $data);
	}
}