<?php

namespace App\Library;

use App\Models\Gateway;
use Carbon\Carbon;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Session;
use Throwable;

class Thawani
{
    public static function redirect_if_payment_success()
    {
        if (Session::has('fund_callback')) {
            return url(Session::get('fund_callback')['success_url']);
        } else {
            return url('payment/success');
        }
    }

    public static function redirect_if_payment_faild()
    {
        if (Session::has('fund_callback')) {
            return url(Session::get('fund_callback')['cancel_url']);
        } else {
            return url('payment/failed');
        }
    }

    public static function fallback()
    {
        if (Session::get('without_auth')) {
            return url('payment/thawani');
        }
        return url('payment/thawani');
    }

    public static function make_payment($array)
    {
        //Checking Minimum/Maximum amount
        $gateway = Gateway::findOrFail($array['gateway_id']);
        $amount = $array['pay_amount'];

        $currency = $array['currency'];
        $email = $array['email'];
        $amount = $array['pay_amount'];
        $name = $array['name'];
        $billName = $array['billName'];
        $data['secret_key'] = $array['secret_key'];
        $data['public_key'] = $array['publishable_key'];
        $data['payment_mode'] = 'thawani';
        $mode = $array['mode'];
        $data['mode'] = $mode;

        $data['amount'] = $amount;
        $data['charge'] = $array['charge'];
        $data['phone'] = $array['phone'];
        $data['gateway_id'] = $array['gateway_id'];
        $data['main_amount'] = $array['amount'];

        $data['billName'] = $billName;
        $data['name'] = $name;
        $data['email'] = $email;
        $data['currency'] = $currency;

        $productJson = json_encode([
            'name' => $billName,
            'unit_amount' => (float) ceil($array['pay_amount'] * 1000),
            'quantity' => 1,
        ]);

        if ($mode == 0) {
            $data['env'] = false;
            $mode = false;
        } else {
            $data['env'] = true;
            $mode = true;
        }
        $curl = curl_init();
        curl_setopt_array($curl, [
            CURLOPT_URL => "https://uatcheckout.thawani.om/api/v1/checkout/session",
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_ENCODING => "",
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "POST",
            CURLOPT_HTTPHEADER => [
                "Content-Type: application/json",
                "thawani-api-key: " . $data['secret_key'],
            ],
            CURLOPT_POSTFIELDS => '{"client_reference_id": ' . strtotime(Carbon::now()) . ',
            "products": [' . $productJson . '],
            "success_url": "' . Thawani::fallback() . '",
            "cancel_url": "' . Thawani::redirect_if_payment_faild() . '"}',
        ]);
        $response = curl_exec($curl);
        $err = curl_error($curl);
        curl_close($curl);

        $response = json_decode($response, true);

        if ($response['success'] == true) {
            $session_id = $response['data']['session_id'];
            $data['response'] = $response;
            if ($mode == true) {
                $url = "https://uatcheckout.thawani.om/pay/" . $session_id . "?key=" . $array['publishable_key'];
            } else {
                $url = "https://checkout.thawani.om/pay/" . $session_id . "?key=" . $array['publishable_key'];
            }
            Session::put('thawani_credentials', $data);
        } else {
            Session::has('thawani_credentials') ? Session::forget('thawani_credentials') : '';
            $url = Thawani::redirect_if_payment_faild();
        }

        Session::put('thawani_credentials', $data);

        return request()->expectsJson() ?
        $url :
        redirect($url);
    }

    public function status(Request $request)
    {
        if (!Session::has('thawani_credentials')) {
            return abort(404);
        }
        $info = Session::get('thawani_credentials');
        $mode = Session::get('thawani_credentials')['mode'];
        $secret_key = Session::get('thawani_credentials')['secret_key'];
        $invoice = Session::get('thawani_credentials')['response']['data']['invoice'];
        $response = $this->getResponse($mode, $invoice, $secret_key);
        $responseArr = json_decode($response, true);

        if (array_key_exists('success', $responseArr) && $responseArr['success'] == true) {
            $data['payment_id'] = $responseArr['data'][0]['payment_id'];
            $data['payment_method'] = "thawani";
            $data['gateway_id'] = $info['gateway_id'];

            $data['amount'] = $info['main_amount'];
            $data['charge'] = $info['charge'];
            $data['status'] = 1;
            $data['payment_status'] = 1;

            Session::forget('thawani_credentials');
            Session::put('payment_info', $data);

            return request()->expectsJson() ?
            thawani::redirect_if_payment_success() :
            redirect(thawani::redirect_if_payment_success());
        } else {
            $data['payment_status'] = 0;
            Session::put('payment_info', $data);
            Session::forget('thawani_credentials');

            return request()->expectsJson() ?
            thawani::redirect_if_payment_faild() :
            redirect(thawani::redirect_if_payment_faild());
        }
    }

    private function getResponse($mode, $invoice_id, $api_key)
    {
        if ($mode == 1) {
            $url = "https://uatcheckout.thawani.om/api/v1/payments/?checkout_invoice=$invoice_id";
        } else {
            $url = "https://checkout.thawani.om/api/v1/payments/?checkout_invoice=$invoice_id";
        }
        $curl = curl_init();

        curl_setopt_array($curl, [
            CURLOPT_URL => $url,
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_ENCODING => "",
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "GET",
            CURLOPT_POSTFIELDS => "",
            CURLOPT_HTTPHEADER => [
                "Content-Type: application/json",
                "thawani-api-key: " . $api_key,
            ],
        ]);

        $response = curl_exec($curl);
        $err = curl_error($curl);

        curl_close($curl);

        if ($err) {
            return $err;
        } else {
            return $response;
        }
    }

    public static function isfraud($creds)
    {
        $invoice_id = $creds['payment_id'];
        $api_key = $creds['secret_key'];
        $mode = $creds['is_test'];

        if ($mode == 1) {
            $url = "https://uatcheckout.thawani.om/api/v1/payments/?checkout_invoice=$invoice_id";
        } else {
            $url = "https://checkout.thawani.om/api/v1/payments/?checkout_invoice=$invoice_id";
        }

        try {
            $curl = curl_init();

            curl_setopt_array($curl, [
                CURLOPT_URL => $url,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_ENCODING => "",
                CURLOPT_MAXREDIRS => 10,
                CURLOPT_TIMEOUT => 30,
                CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
                CURLOPT_CUSTOMREQUEST => "GET",
                CURLOPT_POSTFIELDS => "",
                CURLOPT_HTTPHEADER => [
                    "Content-Type: application/json",
                    "thawani-api-key: " . $api_key,
                ],
            ]);

            $response = curl_exec($curl);
            $err = curl_error($curl);

            curl_close($curl);

            $arr = json_decode($response, true);
            if (array_key_exists('success', $arr) && $arr['success'] == true) {
                return 1;
            } else {
                return 0;
            }

        } catch (Throwable $th) {
            return 0;
        }
    }
}