<?php

namespace Modules\RegistrationFormSteps\Services;
use Modules\Subscription\Entities\SubscriptionPlan;
use Modules\Subscription\Entities\SubscriptionPlanPricePaypal;
use Modules\Subscription\Repositories\SubscriptionCouponsRepository;
use Illuminate\Support\Facades\Cache;
use Illuminate\Support\Str;
use Carbon\Carbon;

class PaypalPaymentService
{
    protected $apiBaseUrl;
    protected $accessToken;
    protected $subscriptionCouponsRepository;

    public function __construct()
    {   
        $this->apiBaseUrl = 'https://api-m.paypal.com'; // live
        //$this->apiBaseUrl = 'https://api-m.sandbox.paypal.com'; // sandbox
        $this->subscriptionCouponsRepository = new SubscriptionCouponsRepository();
    }

    private function makeAccessToken() {

        $credential = getPaymentInfoViaSellerId(1, 3);

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->apiBaseUrl.'/v1/oauth2/token');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, "grant_type=client_credentials");
        curl_setopt($ch, CURLOPT_USERPWD, $credential->perameter_2 . ':' . $credential->perameter_3);

        $headers = array();
        $headers[] = 'Content-Type: application/x-www-form-urlencoded';
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        $result = curl_exec($ch);
        curl_close($ch);

        $result = json_decode($result);
        if (!empty($result->access_token)) {
            $this->accessToken = $result->access_token;
            return true;
        }

        return false;
    }


    public function payment($data, $planPrice)
    {   
        if(!$this->makeAccessToken()){
            return false;
        }

        $cache_key = Str::uuid();
        Cache::put($cache_key,$data);

        $subscription_data = [
            'quantity' => 1,
            'subscriber' => [
                'email_address' => $data['email'],
                'name' => [
                    'given_name' => $data['first_name'],
                    'surname' => $data['last_name']
                ]

            ],
            'application_context' => [
                'brand_name' => 'WTI',
                'shipping_preference' => 'NO_SHIPPING',
                'user_action' => 'CONTINUE',
                'payment_method' => [
                    'payer_selected' => 'PAYPAL',
                    'payee_preferred' => 'IMMEDIATE_PAYMENT_REQUIRED'
                ],
                'return_url' => url('/register/paypal'),
                'cancel_url' => url('/register')
            ]
        ];

        $promoCode = $this->subscriptionCouponsRepository->validate($data['promo_code'], $data['storefront']);
        if(isset($promoCode->stripe_coupon_id) && in_array($planPrice->id, $promoCode->subscription_plan_price_id)){
            $payment_details = $planPrice->plan->title;
            $price_monthly = $planPrice->price / $planPrice->custom_interval;
            if ($promoCode->type == 'Amount') {
                $discounted_price_monthly = number_format($price_monthly - $promoCode->discount,2);
                $discounted_price_all = number_format($planPrice->price - $promoCode->discount,2);

            } else {
                $discounted_price_monthly =  number_format($price_monthly - (($promoCode->discount / 100) * $price_monthly),2);
                $discounted_price_all = number_format($planPrice->price - (($promoCode->discount / 100) * $planPrice->price),2);
            }


            if($planPrice->payment == 'monthly'){
                $payment_details .= $promoCode->duration == 'Once' ? ' - $'.number_format($planPrice->price / $planPrice->custom_interval,2).' for '.$planPrice->custom_interval.' Months ($'.$discounted_price_monthly.' 1st month only)' : ' - '.$planPrice->custom_interval.' Months ($'.$discounted_price_monthly.' per month)';
            } else {
                $payment_details .=  '($'.$discounted_price_all.' for '.$planPrice->custom_interval.' Months)';
            }

            //lets create new plan price with discount
            $response = $this->createProductPriceWithDiscount($planPrice,$promoCode->duration,$discounted_price_monthly,$discounted_price_all,$payment_details);
            if(isset($response->id)){

                $subscription_data['plan_id'] = $response->id;
                $subscription_data['custom_id'] = json_encode([
                    'cache_key' => $cache_key,
                    'coupon_id' => $promoCode->stripe_coupon_id
                ]);

                $paypalPlanPrice = new SubscriptionPlanPricePaypal;
                $paypalPlanPrice->subscription_plan_price_id = $planPrice->id;
                $paypalPlanPrice->paypal_price_id = $response->id;
                $paypalPlanPrice->save();

            } else {

                return response()->json([
                    'message' => 'Something went wrong, please try again later.'
                ], 404);
            }

        } else {

            $subscription_data['plan_id'] = $planPrice->paypal_price_id;
            $subscription_data['custom_id'] = json_encode([
                'cache_key' => $cache_key
            ]);
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->apiBaseUrl.'/v1/billing/subscriptions');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($subscription_data,true));

        $headers = array();
        $headers[] = 'Content-Type: application/json';
        $headers[] = 'Authorization: Bearer '.$this->accessToken;
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        $result = json_decode(curl_exec($ch));
        if (curl_errno($ch)) {
            $response->msg = curl_error($ch);
            curl_close($ch);
            return $response;
        }
        curl_close($ch);

        return $result;
    }

    public function showSubscription($subscription_id)
    {   
        if(!$this->makeAccessToken()){
            return false;
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->apiBaseUrl.'/v1/billing/subscriptions/'.$subscription_id);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);

        $headers = array();
        $headers[] = 'Content-Type: application/json';
        $headers[] = 'Authorization: Bearer '.$this->accessToken;
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        $result = json_decode(curl_exec($ch));
        if (curl_errno($ch)) {
            $response->msg = curl_error($ch);
            curl_close($ch);
            return $response;
        }
        curl_close($ch);

        return $result;
    }

    public function createProductPriceWithDiscount($planPrice, $duration, $discounted_price_monthly, $discounted_price_all, $payment_details)
    {   
        if(!$this->makeAccessToken()){
            return false;
        }

        $custom_intervals = [
            'Months' => 'Month',
            'Years' => 'Year'
        ];

        $post_data = [
            'product_id' => $planPrice->plan->paypal_product_id,
            'name' => $payment_details,
            'status' => 'ACTIVE',
            'payment_preferences' => [
                'setup_fee_failure_action' => 'CONTINUE'
            ]
        ];

        if($duration == 'Once' && $planPrice->payment == 'monthly'){

            $post_data['billing_cycles'] = [
                [   
                    'frequency' => [
                        'interval_unit' => $custom_intervals[$planPrice->custom_interval_type],
                        'interval_count' => ($planPrice->payment != 'upfront' ? 1 : $planPrice->custom_interval)
                    ],
                    'tenure_type' => 'TRIAL',
                    'sequence' => 1,
                    'total_cycles' => 1,
                    'pricing_scheme' => [
                        'fixed_price' => [
                            'currency_code' => getCurrencyCode(),
                            'value' => (float)($planPrice->payment == 'monthly' ? $discounted_price_monthly : $discounted_price_all)
                        ]
                    ],
                ],
                [   
                    'frequency' => [
                        'interval_unit' => $custom_intervals[$planPrice->custom_interval_type],
                        'interval_count' => ($planPrice->payment != 'upfront' ? 1 : $planPrice->custom_interval)
                    ],
                    'tenure_type' => 'REGULAR',
                    'sequence' => 2,
                    'total_cycles' => ($planPrice->custom_interval - 1),
                    'pricing_scheme' => [
                        'fixed_price' => [
                            'currency_code' => getCurrencyCode(),
                            'value' => (float)($planPrice->price / $planPrice->custom_interval)
                        ]
                    ],
                ]
            ];

        } else {

            $post_data['billing_cycles'] = [
                [   
                    'frequency' => [
                        'interval_unit' => $planPrice->payment == 'monthly' ? 'MONTH' : 'YEAR',
                        'interval_count' => 1
                    ],
                    'tenure_type' => 'REGULAR',
                    'sequence' => 1,
                    'total_cycles' => ($planPrice->payment == 'upfront' ? 0 : $planPrice->custom_interval),
                    'pricing_scheme' => [
                        'fixed_price' => [
                            'currency_code' => getCurrencyCode(),
                            'value' => (float)($planPrice->payment == 'monthly' ? $discounted_price_monthly : $discounted_price_all)
                        ]
                    ],
                ]
            
            ];
        }

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->apiBaseUrl.'/v1/billing/plans');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($post_data,true));

        $headers = array();
        $headers[] = 'Content-Type: application/json';
        $headers[] = 'Authorization: Bearer '.$this->accessToken;
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);

        $result = json_decode(curl_exec($ch));
        if (curl_errno($ch)) {
            $response->msg = curl_error($ch);
            curl_close($ch);
            return $response;
        }
        curl_close($ch);

        return $result;
    }
}