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

namespace wchat\wx;

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

/**
 * Class Recharge
 * @package wchat\wx
 */
class Recharge extends SmallProgram
{
	private $money = 0;

	private $orderNo;

	private $data = [];

	private $transfers = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
	private $uniformed = 'https://api.mch.weixin.qq.com/pay/unifiedorder';

	/**
	 * @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;

		$config = $this->config;
		$this->request->setCallback(function ($result, $body) use ($config) {
			$data = Help::toArray($result);
			if (isset($data['sign'])) {
				$sign = $data['sign'];
				unset($data['sign']);
			}
			$return = [];
			$_sign = Help::sign($data, $config->getKey(), $config->getSignType());
			if (!isset($sign) || $sign != $_sign) {
				$return['code'] = -1;
				$return['message'] = $data['return_msg'] ?? '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->uniformed, $this->builder());
	}

	/**
	 * 'appId' => $result['appid'],
	 * 'nonceStr' => $result['nonce_str'],
	 * 'package' => 'prepay_id=' . $result['prepay_id'],
	 * 'signType' => 'MD5',
	 * 'timeStamp' => (string)time(),
	 * @param $prepay_id
	 * @return array
	 */
	public function reception($prepay_id)
	{
		$array = [
			'appId'     => $this->config->getAppid(),
			'nonceStr'  => Help::random(32),
			'package'   => 'prepay_id=' . $prepay_id,
			'signType'  => 'MD5',
			'timeStamp' => (string)time(),
		];
		$key = $this->config->getKey();
		$sign_type = $this->config->getSignType();
		$array['paySign'] = Help::sign($array, $key, $sign_type);
		return $array;
	}

	/**
	 * @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' => $_SERVER['REMOTE_ADDR'],
			'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);
	}

	public function getSignData()
	{
		$data = $this->data;
		$data['key'] = $this->config->getKey();
		return $data;
	}

	/**
	 * @param $money
	 * @param $openid
	 * @param $order
	 * @param $desc
	 * @return Result
	 * @throws
	 *
	 * 提现
	 */
	public function cashWithdrawal($money, $openid, $order, $desc = '零钱提现')
	{
		$array = [
			'nonce_str'        => Help::random(32),
			'partner_trade_no' => $order,
			'mchid'            => $this->config->getMchId(),
			'mch_appid'        => $this->config->getAppid(),
			'openid'           => $openid,
			'check_name'       => 'NO_CHECK',
			'amount'           => $money * 100,
			'spbill_create_ip' => $this->config->getRemoteAddr(),
			'desc'             => $desc,
		];

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

		$this->request->setCallback(function ($data) {
			$array = Help::toArray($data);
			if ($array['return_code'] != 'SUCCESS') {
				$data = ['code' => $array['return_code'], 'message' => $array['return_msg']];
			} else if ($array['result_code'] != 'SUCCESS') {
				$data = ['code' => $array['err_code'], 'message' => $array['err_code_des']];
			} else {
				$data = ['code' => 0, 'message' => '支付成功', 'data' => $array];
			}
			return new Result($data);
		});
		return $this->send($this->transfers, Help::toXml($array));
	}

	/**
	 * @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');
		$this->request->setErrorField('errcode');
		$this->request->setErrorMsgField('errmsg');
		return $this->request->send($url, $data);
	}
}