<?php

declare(strict_types=1);

namespace App\Service;

use App\Exception\BusinessException;
use App\Helper\Log;
use App\Helper\OmiPay\Api;
use App\Helper\OmiPay\Result;
use App\Helper\OmiPay\Signer;
use App\Helper\Platform\Notification;
use App\Helper\Platform\Signer as PlatformSigner;
use App\Helper\Redis;
use App\Helper\RedisKey;
use App\Helper\StringHelper;
use App\Model\App;
use App\Model\Order;

class PaymentService extends AbstractService
{
    public function createOrder(App $app, array $params) {
        $order = new Order();
        $order->merchant_id = $app->merchant_id;
        $order->app_id = $app->app_id;
        $order->order_no = $this->generateOrderNo();
        $order->out_order_no = $params['out_order_no'];
        $order->order_name = $params['order_name'];
        $order->amount = $params['amount'];
        $order->currency = $params['currency'];
        $order->redirect_url = $params['redirect_url'];
        $order->notify_url = $params['notify_url'];
        $order->direct_pay = $params['direct_pay'] ?? 0;
        $order->show_pc_pay_url = $params['show_pc_pay_url'] ?? 0;
        $order->o_number = $params['o_number'] ?? '';
        $order->pos_no = $params['pos_no'] ?? '';
        $order->status = Order::STATUS_PREPARE;
        $order->save();
        return $order;
    }

    private function generateOrderNo() {
        $now = time();
        $key = RedisKey::getGenerateOrderNoKey($now);
        $incrId = Redis::incr($key);
        $incrId = '' . $incrId;
        Redis::expire($key, 5*60);
        $padLength = 6 - strlen($incrId);
        $incrId = str_pad($incrId, $padLength, '0', STR_PAD_LEFT);
        return date('YmdHis', $now) . $incrId;
    }

    public function updateOrderResult(Order $order, Result $result) {
        if ($result->isSuccess()) {
            $order->pay_order_no = $result->get('order_no');
            $order->pay_url = $result->get('pay_url');
            $order->status = Order::STATUS_WAIT_PAY;
        } else {
            $order->error_code = $result->get('error_code');
            $order->error_msg = $result->get('error_msg');
            $order->status = Order::STATUS_FAILED;
        }
        $order->save();
    }

    public function jsapiPay(App $app, array $params) {
        $order = Order::where('app_id', $app->app_id)->where('out_order_no', $params['out_order_no'])->first();
        if ($order) {
            throw new BusinessException('订单重复');
        }
        $order = $this->createOrder($app, $params);
        $result = Api::getExchangeRate('AUD', 'CNY');
        if (!$result->isSuccess()) {
            throw new BusinessException('获取汇率接口失败');
        }
        $rate = $result->get('rate');
        $result = Api::makeJSAPIOrder(
            $order->order_name,
            $order->order_no,
            'AUD',
            intval($order->amount / $rate),
            config('base_url') . '/payment/notify',
            config('base_url') . '/payment/page?order_no=' . $order->order_no
        );
        $this->updateOrderResult($order, $result);
        return $order;
    }

    public function notify($params) {
        Log::info('notify:', $params, 'omipay');
        if (Signer::verify($params)) {
            return 'SIGN FAIL';
        }
        if ($params['return_code'] != 'SUCCESS') {
            return 'STATUS FAIL';
        }
        
        $order = Order::where('order_no', $params['out_order_no'])->where('status', Order::STATUS_WAIT_PAY)->first();
        $app = App::where('app_id', $order->app_id)->first();
        $order->status = Order::STATUS_PAYED;
        $order->payed_at = date('Y-m-d H:i:s');
        $order->exchange_rate = $params['exchange_rate'] ?: 0;
        $order->cny_amount = $params['cny_amount'] ?: 0;
        $order->save();
        if ($order->save()) {
            Log::info('notifyToOut url:' . $order->notify_url, 'omipay');
            $result = Notification::post($order->notify_url, $this->buildNotifyParams($order, $app));
            if ($result != 'SUCCESS') {
                return 'NOTIFY FAIL';
            }
            return 'SUCCESS';
        }
        return 'UPDATE FAIL';
    }

    protected function buildNotifyParams(Order $roder, App $app) {
        $params = [
            'app_id' => $order->app_id,
            'nonce_str' => StringHelper::getRandomString(32),
            'timestamp' => time(),
        ];
        $bizData = [
            'code' => 'SUCCESS',
            'order_no' => $roder->order_no,
            'out_order_no' => $roder->out_order_no,
            'currency' => $roder->currency,
            'total_amount' => $roder->amount,
            'order_time' => date('YmdHis', strtotime($roder->created_at)),
            'pay_time' => date('YmdHis', strtotime($roder->payed_at)),
            'exchange_rate' => $roder->exchange_rate,
            'cny_amount' => $roder->cny_amount,
        ];
        $params['data'] = json_encode($bizData);
        $params['sign'] = PlatformSigner::sign($params, $app->app_key);

        Log::info('notifyToOut params:', $params, 'omipay');

        return $params;
    }
}