<?php
/*
 * File name: PayMongoController.php
 * Last modified: 2021.11.02 at 13:04:47
 * Author: SmarterVision - https://codecanyon.net/user/smartervision
 * Copyright (c) 2021
 */

namespace App\Http\Controllers;

use Exception;
use Flash;
use Illuminate\Http\Request;

class PayMongoController extends ParentBookingController
{

    public function __init()
    {

    }

    public function index()
    {
        return view('home');
    }

    public function checkout(Request $request)
    {
        $this->booking = $this->bookingRepository->findWithoutFail($request->get('booking_id'));
        if (empty($this->booking)) {
            Flash::error("Error processing PayMongo payment for your booking");
            return redirect(route('payments.failed'));
        }
        return view('payment_methods.paymongo_charge', ['booking' => $this->booking]);
    }

    public function processing(Request $request, int $bookingId, string $paymentMethodId)
    {
        $this->booking = $this->bookingRepository->findWithoutFail($bookingId);
        if (empty($this->booking)) {
            Flash::error("Error processing PayMongo payment for your booking");
            return redirect(route('payments.failed'));
        } else {
            try {
                $intent = $this->createPaymentIntent();
                if ($intent != null && isset($intent['data'])) {
                    $intent = $this->attachPaymentIntent($intent['data']['id'], $paymentMethodId, $bookingId);
                    if ($intent != null && isset($intent['data']['attributes']['status'])) {
                        if ($intent['data']['attributes']['status'] == "succeeded") {
                            $this->paymentMethodId = 12; // PayMongo method
                            $this->createBooking();
                            return redirect(url('payments/paymongo'));
                        } else if ($intent['data']['attributes']['status'] == "awaiting_next_action") {
                            return redirect($intent['data']['attributes']['next_action']['redirect']['url']);
                        }
                    }
                }
                if ($intent != null && isset($intent['errors'])) {
                    $details = array_map(function ($value) {
                        return $value['detail'];
                    }, $intent['errors']);
                    Flash::error(implode('<br><br>', $details));
                    return redirect(route('payments.failed'));
                }
                Flash::error("The payment failed to be processed due to unknown reasons.");
                return redirect(route('payments.failed'));
            } catch (Exception $e) {
                Flash::error("Error processing PayMongo payment for your booking :" . $e->getMessage());
                return redirect(route('payments.failed'));
            }
        }
    }

    private function createPaymentIntent()
    {
        $curl = curl_init();

        curl_setopt_array($curl, array(
            CURLOPT_URL => "https://api.paymongo.com/v1/payment_intents",
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "POST",
            CURLOPT_POSTFIELDS => $this->getBookingData(),
            CURLOPT_HTTPHEADER => array(
                "Authorization: Basic " . base64_encode(setting('paymongo_secret')),
                "Content-Type: application/json",
                "Accept: application/json",
                "Cache-Control: no-cache",
            ),
        ));

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

        if ($err) {
            Flash::error($err);
            return null;
        } else {
            return json_decode($response, true);
        }
    }

    /**
     * Set cart data for processing payment on PayMongo.
     */
    private function getBookingData(): string
    {
        $amount = $this->booking->getTotal();
        $amount = (int)($amount * 100);
        $currency = setting('default_currency_code');
        $description = "#" . $this->booking->id . " - " . $this->booking->e_service->name . " - " . $this->booking->e_provider->name;
        return '{"data":{"attributes":{"amount":' . $amount . ',"payment_method_allowed":["card","paymaya"], "payment_method_options":{"card":{"request_three_d_secure":"any"}},"currency":"' . $currency . '","description":"' . $description . '"}}}';
    }

    private function attachPaymentIntent($paymentIntentId, $paymentMethodId, $bookingId)
    {
        $curl = curl_init();
        $paymentMethodId = '{"data":{"attributes":{"payment_method":"' . $paymentMethodId . '","return_url":"' . url('payments/paymongo/success', ['booking_id' => $bookingId, 'payment_intent_id' => $paymentIntentId]) . '"}}}';
        curl_setopt_array($curl, array(
            CURLOPT_URL => "https://api.paymongo.com/v1/payment_intents/$paymentIntentId/attach",
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "POST",
            CURLOPT_POSTFIELDS => $paymentMethodId,
            CURLOPT_HTTPHEADER => array(
                "Authorization: Basic " . base64_encode(setting('paymongo_secret')),
                "Content-Type: application/json",
                "Accept: application/json",
                "Cache-Control: no-cache",
            ),
        ));

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

        if ($err) {
            Flash::error($err);
            return null;
        } else {
            return json_decode($response, true);
        }
    }

    public function success(Request $request, int $bookingId, string $paymentIntentId)
    {
        $this->booking = $this->bookingRepository->findWithoutFail($bookingId);
        if (!empty($this->booking)) {
            $intent = $this->getPaymentIntent($paymentIntentId);
            if (isset($intent['data']['attributes']['status'])) {
                if ($intent['data']['attributes']['status'] == "succeeded") {
                    $this->paymentMethodId = 12; // PayMongo method
                    $this->createBooking();
                    return redirect(url('payments/paymongo'));
                }
            }
        }
        Flash::error("Error processing PayMongo payment for your booking");
        return redirect(route('payments.failed'));
    }

    private function getPaymentIntent($paymentIntentId)
    {
        $curl = curl_init();

        curl_setopt_array($curl, array(
            CURLOPT_URL => "https://api.paymongo.com/v1/payment_intents/$paymentIntentId",
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_MAXREDIRS => 10,
            CURLOPT_TIMEOUT => 30,
            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
            CURLOPT_CUSTOMREQUEST => "GET",
            CURLOPT_HTTPHEADER => array(
                "Authorization: Basic " . base64_encode(setting('paymongo_secret')),
                "Content-Type: application/json",
                "Accept: application/json",
                "Cache-Control: no-cache",
            ),
        ));

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

        if ($err) {
            Flash::error($err);
            return null;
        } else {
            return json_decode($response, true);
        }
    }
}