<?php

namespace App\Http\Controllers;

use App\Models\Coupon;
use App\Models\Order;
use App\Models\Plan;
use App\Models\UserCoupon;
use App\Models\Utility;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\Crypt;
use Illuminate\Support\Facades\Log;

class OzowController extends Controller
{
    public    $currancy;

    function generate_request_hash_check($inputString)
    {
        $stringToHash = strtolower($inputString);
        // echo "Before Hashcheck: " . $stringToHash . "\n";
        return $this->get_sha512_hash($stringToHash);
    }

    function get_sha512_hash($stringToHash)
    {
        return hash('sha512', $stringToHash);
    }

    public function planPayWithOzow(Request $request)
    {
        $payment_setting = Utility::getAdminPaymentSetting();
        $siteCode       = isset($payment_setting['ozow_site_key']) ? $payment_setting['ozow_site_key'] : '';
        $privateKey     = isset($payment_setting['ozow_private_key']) ? $payment_setting['ozow_private_key'] : '';
        $apiKey         = isset($payment_setting['ozow_api_key']) ? $payment_setting['ozow_api_key'] : '';
        $isTest         = isset($payment_setting['ozow_mode']) && $payment_setting['ozow_mode'] == 'sandbox'  ? 'true' : 'false';
        $countryCode    = "ZA";
        $currencyCode   = $this->currancy = isset($payment_setting['currency']) ? $payment_setting['currency'] : 'USD';
        $bankReference  = time().'FKU';
        $transactionReference = time();

        $planID    = \Illuminate\Support\Facades\Crypt::decrypt($request->plan_id);
        $plan      = Plan::find($planID);
        $authuser  = Auth::user();
        $coupon_id = '';
        if($plan)
        {
            $price = $plan->price;
            if (isset($request->coupon) && !empty($request->coupon)) {
                $coupons = Coupon::where('code', strtoupper($request->coupon))->where('is_active', '1')->first();
                if(!empty($coupons))
                {
                    $usedCoupun     = $coupons->used_coupon();
                    $discount_value = ($plan->price / 100) * $coupons->discount;
                    $price          = $plan->price - $discount_value;

                    if($coupons->limit == $usedCoupun)
                    {
                        return redirect()->back()->with('error', __('This coupon code has expired.'));
                    }
                } else{
                    return redirect()->back()->with('error', __('This coupon code is invalid or has expired.'));
                }
            }

            if($price <= 0)
            {
                $authuser->plan = $plan->id;
                $authuser->save();

                $assignPlan = $authuser->assignPlan($plan->id);

                if ($assignPlan['is_success'] == true && !empty($plan)) {
                    if (!empty($authuser->payment_subscription_id) && $authuser->payment_subscription_id != '') {
                        try {
                            $authuser->cancel_subscription($authuser->id);
                        } catch (\Exception $exception) {
                            Log::debug($exception->getMessage());
                        }
                    }
                    $orderID = strtoupper(str_replace('.', '', uniqid('', true)));
                    $userCoupon = new UserCoupon();
                    $userCoupon->user = $authuser->id;
                    $userCoupon->coupon = $coupons->id;
                    $userCoupon->order = $orderID;
                    $userCoupon->save();

                    Order::create(
                        [
                            'order_id' => $orderID,
                            'name' => null,
                            'email' => null,
                            'card_number' => null,
                            'card_exp_month' => null,
                            'card_exp_year' => null,
                            'plan_name' => $plan->name,
                            'plan_id' => $plan->id,
                            'price' => $price == null ? 0 : $price,
                            'price_currency' => isset($payment_setting['currency']) && !empty($payment_setting['currency']) ? $payment_setting['currency'] : 'USD',
                            'txn_id' => '',
                            'payment_type' => 'Ozow',
                            'payment_status' => 'success',
                            'receipt' => null,
                            'user_id' => $authuser->id,
                        ]
                    );
                    $assignPlan = $authuser->assignPlan($plan->id);
                    return redirect()->route('plans.index')->with('success', __('Plan Successfully Activated'));
                }
            }

            try {
                $cancelUrl  = route('plan.get.ozow.status', [
                                    Crypt::encrypt($plan->id),
                                    'amount' => $price,
                                    'user' => $authuser,
                                    'coupon'=>$request->coupon,
                                ]);
                $errorUrl   = route('plan.get.ozow.status', [
                                    Crypt::encrypt($plan->id),
                                    'amount' => $price,
                                    'user' => $authuser,
                                    'coupon'=>$request->coupon,
                                ]);
                $successUrl = route('plan.get.ozow.status', [
                                    Crypt::encrypt($plan->id),
                                    'amount' => $price,
                                    'user' => $authuser,
                                    'coupon'=>$request->coupon,
                                ]);
                $notifyUrl  = route('plan.get.ozow.status', [
                                    Crypt::encrypt($plan->id),
                                    'amount' => $price,
                                    'user' => $authuser,
                                    'coupon'=>$request->coupon,
                                ]);

                // Calculate the hash with the exact same data being sent
                $inputString    = $siteCode . $countryCode . $currencyCode . $price . $transactionReference . $bankReference . $cancelUrl . $errorUrl . $successUrl . $notifyUrl . $isTest . $privateKey;
                $hashCheck      = $this->generate_request_hash_check($inputString);

                $data = [
                    "countryCode"           => $countryCode,
                    "amount"                => $price,
                    "transactionReference"  => $transactionReference,
                    "bankReference"         => $bankReference,
                    "cancelUrl"             => $cancelUrl,
                    "currencyCode"          => $currencyCode,
                    "errorUrl"              => $errorUrl,
                    "isTest"                => $isTest, // boolean value here is okay
                    "notifyUrl"             => $notifyUrl,
                    "siteCode"              => $siteCode,
                    "successUrl"            => $successUrl,
                    "hashCheck"             => $hashCheck,
                ];

                $curl = curl_init();
                curl_setopt_array($curl, array(
                    CURLOPT_URL             => 'https://api.ozow.com/postpaymentrequest',
                    CURLOPT_RETURNTRANSFER  => true,
                    CURLOPT_ENCODING        => '',
                    CURLOPT_MAXREDIRS       => 10,
                    CURLOPT_TIMEOUT         => 0,
                    CURLOPT_FOLLOWLOCATION  => true,
                    CURLOPT_HTTP_VERSION    => CURL_HTTP_VERSION_1_1,
                    CURLOPT_CUSTOMREQUEST   => 'POST',
                    CURLOPT_POSTFIELDS      => json_encode($data),
                    CURLOPT_HTTPHEADER      => array(
                        'Accept: application/json',
                        'ApiKey: '.$apiKey,
                        'Content-Type: application/json'
                    ),
                ));

                $response = curl_exec($curl);
                curl_close($curl);
                $json_attendance = json_decode($response, true);

                if (isset($json_attendance['url']) && $json_attendance['url'] != null) {
                    return redirect()->away($json_attendance['url']);

                } else {
                    return redirect()->route('plans.index')->with('error', $response['message'] ?? 'Something went wrong.');
                }

            } catch (\Exception $e) {
                return redirect()->back()->with('error', $e);
            }
        } else{
            return redirect()->route('plans.index')->with('error', __('Plan is deleted.'));
        }
    }


    public function planGetOzowStatus(Request $request, $plan_id)
    {
        $payment_setting = Utility::getAdminPaymentSetting();
        $planId = Crypt::decrypt($plan_id);
        $plan = Plan::find($planId);

        if($plan){
            $user = Auth::user();
            $couponCode = $request->coupon;
            $getAmount = $request->amount;
            $orderID = strtoupper(str_replace('.', '', uniqid('', true)));
            if ($couponCode != 0) {
                $coupons = Coupon::where('code', strtoupper($couponCode))->where('is_active', '1')->first();
                $request['coupon_id'] = $coupons->id;
            } else {
                $coupons = null;
            }

            if (isset($request['Status']) && $request['Status'] == 'Complete') {
                $order = new Order();
                $order->order_id = $orderID;
                $order->name = $user->name;
                $order->card_number = '';
                $order->card_exp_month = '';
                $order->card_exp_year = '';
                $order->plan_name = $plan->name;
                $order->plan_id = $plan->id;
                $order->price = $getAmount;
                $order->price_currency = isset($payment_setting['currency']) && !empty($payment_setting['currency']) ? $payment_setting['currency'] : 'USD';
                $order->payment_type = 'Ozow';
                $order->payment_status = 'success';
                $order->txn_id = '';
                $order->receipt = '';
                $order->user_id = $user->id;
                $order->save();

                $assignPlan = $user->assignPlan($plan->id);
                $coupons = Coupon::find($request->coupon_id);
                if (!empty($request->coupon_id)) {
                    if (!empty($coupons)) {
                        $userCoupon = new UserCoupon();
                        $userCoupon->user = $user->id;
                        $userCoupon->coupon = $coupons->id;
                        $userCoupon->order = $orderID;
                        $userCoupon->save();
                        $usedCoupun = $coupons->used_coupon();
                        if ($coupons->limit <= $usedCoupun) {
                            $coupons->is_active = 0;
                            $coupons->save();
                        }
                    }
                }

                Utility::referralTransaction($plan);
                if ($assignPlan['is_success']) {
                    return redirect()->route('plans.index')->with('success', __('Plan activated Successfully.'));
                } else {
                    return redirect()->route('plans.index')->with('error', __($assignPlan['error']));
                }
            }else{
                return redirect()->route('plans.index')->with('error', __('Transaction has been failed.'));
            }
        }else{
            return redirect()->route('plans.index')->with('error', __('Plan is deleted.'));
        }
    }