<?php

namespace app\index\controller;

use app\common\controller\Frontend;
use app\common\model\order\Order;

class Alipay extends Frontend
{
    protected $noNeedLogin = ['*'];
    protected $noNeedRight = '*';
    protected $layout = '';

    /**
     * 支付宝支付页面
     * @return void
     */
    public function pay()
    {
        $orderNo = $this->request->param('order_no', '');

        if (empty($orderNo)) {
            return $this->errorPage('订单号不能为空');
        }

        $order = Order::where('order_no', $orderNo)->find();

        if (!$order) {
            return $this->errorPage('订单不存在');
        }

        if ($order->status != \app\common\constant\order\Status::STATUS_UNPAID) {
            return $this->errorPage('当前订单状态不支持付款');
        }

        try {
            $alipayConfig = \app\common\model\config\System::getConfig('alipay');
            if (!$alipayConfig || empty($alipayConfig['app_id'])) {
                return $this->errorPage('支付宝支付未配置');
            }

            $notify_url = MODULE_URL . '/api/pay/notifyx/pay_type/alipay/platform/url/open_id//uniacid/' . UNIACID;
            
            $userAgent = strtolower($this->request->server('HTTP_USER_AGENT', ''));
            $isMobile = preg_match('/(mobile|android|iphone|ipad|ipod|windows phone)/i', $userAgent);
            $platform = $isMobile ? 'url' : 'pc';
            
            $pay = new \app\common\library\pay\PayService('alipay', $platform, $notify_url);

            $domain = $this->request->domain();
            $uniacid = UNIACID;
            $order_data = [
                'out_trade_no' => $order->order_no,
                'total_amount' => $order->real_price,
                'subject' => '商城订单支付',
                'return_url' => $domain . '/index/alipay/return?order_no=' . $orderNo . '&i=' . $uniacid,
            ];

            if ($isMobile) {
                $order_data['quit_url'] = $domain . '/index.php?route=index&i=' . $uniacid;
            }

            $result = $pay->create($order_data);
            $html = $result->getContent();

            $pay_url = $this->request->root(true) . '/index/alipay/pay?order_no=' . $orderNo;

            $this->view->assign('form', $html);
            $this->view->assign('pay_url', $pay_url);

            return $this->view->fetch();
        } catch (\Exception $e) {
            return $this->errorPage('支付创建失败：' . $e->getMessage());
        }
    }

    /**
     * 支付宝支付返回
     * @return void
     */
    public function return()
    {
        $orderNo = $this->request->param('order_no', '');
        $uniacid = $this->request->param('i', UNIACID);
        $domain = $this->request->domain();

        if (!empty($orderNo)) {
            $this->redirect($domain . '/index.php?route=index&i=' . $uniacid . '#/pages/order/detail/detail?order_no=' . $orderNo);
        } else {
            $this->redirect($domain . '/index.php?route=index&i=' . $uniacid);
        }
    }

    /**
     * 错误页面
     * @param string $msg 错误信息
     * @return mixed
     */
    protected function errorPage($msg)
    {
        $this->view->assign('msg', $msg);
        return $this->view->fetch('error_page');
    }
}