<?php
namespace WPCOM\Member\Payments;
use WPCOM\Member\Order;

defined( 'ABSPATH' ) || exit;

class YZF_Alipay extends Payment {
    private $_config;
    public $type;
    public function __construct() {
        $this->id = 'alipay-yzf';
        $this->title = '支付宝';
        $this->icon = WPCOM_MP_URI . 'payment/alipay/alipay.svg';
        $this->color = '#1677ff';
        $this->type = 'alipay';
        $this->init_hook();
    }

    function init_hook(){
        parent::__construct();
    }

    public function init($index){
        $mchid = wpcom_mp_options('wxpay_mchid');
        $key = wpcom_mp_options('wxpay_key');
        $tranasction_url = wpcom_mp_options('pay_tranasction_url');
        $this->_config = [
            'pid' => $mchid && isset($mchid[$index]) ? trim($mchid[$index]) : '',
            'secret' => $key && isset($key[$index]) ? trim($key[$index]) : '',
            'api' => $tranasction_url && isset($tranasction_url[$index]) && $tranasction_url[$index] ? untrailingslashit(trim($tranasction_url[$index])) : '',
        ];
    }

    public function process_payment($order_id) {
        $url = Order::get_checkout_payment_url($order_id);
        return [
            'result' => 'success',
            'redirect' =>  $url
        ];
    }

    public function receipt_page($order_id) {
        $order = Order::get_order($order_id);
        if (!$order || $order->status === 'paid') return;

		$total_amount = round($order->price, 2);
		$data = [
            'pid' => $this->_config['pid'],
            'type' => $this->type,
            'out_trade_no' => $order->number,
            'notify_url' => Order::get_checkout_notify_url($order_id, $this->id),
            'return_url' => Order::get_checkout_return_url($order->ID, $this->id),
            'name' => $this->get_order_title($order),
            'money' => $total_amount,
        ];
        $data['sign'] = $this->sign($data, $this->_config['secret']);
        $data['sign_type'] = 'MD5'; ?>
        <div class="loading-img"></div>
        <p class="loading-text">正在转入支付平台...</p>
        <div class="wpcom-pay-html" style="display: none;">
            <form id="dopay" action="<?php echo esc_url($this->_config['api'] . '/submit.php');?>" method="post">
		    <?php foreach ($data as $k => $v) { ?>
                <input type="hidden" name="<?php echo $k;?>" value="<?php echo $v;?>" />
		    <?php } ?>
            <input type="submit" value="提交"></form>
            <script>document.getElementById("dopay").submit();</script>
        </div>
    <?php }

    public function check_response($order_id) {
        if(!is_numeric($order_id)) return ;

	    $data = $_GET;
        unset($data['action']);
        unset($data['order_id']);
        unset($data['api']);
        self::add_log('#'.$data['out_trade_no'].' 易支付异步通知数据：' . wp_json_encode($data), $this->id);
        if ($this->sign($data, $this->_config['secret']) === $_GET['sign']) {
            self::add_log('#'.$data['out_trade_no'].' 易支付异步通知验证成功', $this->id);
            echo "success";

            $order = Order::get_order( $order_id );
            if(isset($data['trade_status']) && $data['trade_status'] === 'TRADE_SUCCESS' && $order && $order->number && $order->number == $data['out_trade_no'] && $order->status === 'unpaid'){ // 判断订单号，以及支付状态
                Order::payment_complete( $order->ID,  $this->id);
                self::add_log('#'.$data['out_trade_no'].' 订单支付完成！', $this->id);
            }
        } else {
            echo "error sign";
            return false;
        }
    }

    private function sign($param, $app_secret){
		ksort($param);
		reset($param);
		$signstr = '';

		foreach($param as $k => $v){
			if($k != "sign" && $k != "sign_type" && $v!=''){
				$signstr .= $k.'='.$v.'&';
			}
		}
		$signstr = substr($signstr,0,-1);
		$signstr .= $app_secret;
		$sign = md5($signstr);
		return $sign;
	}
}

class YZF_WXpay extends YZF_Alipay {
    public function __construct() {
        $this->id = 'wxpay-yzf';
        $this->title = '微信支付';
        $this->icon = WPCOM_MP_URI . 'payment/wxpay/wxpay.svg';
        $this->color = '#2bae67';
        $this->type = 'wxpay';

        parent::init_hook();
    }
}

new YZF_Alipay();
new YZF_WXpay();