wticreatorstudio/Modules/WTIALaCarte/Services/PaypalService.php

<?php

namespace Modules\WTIALaCarte\Services;
use Illuminate\Support\Str;
use Carbon\Carbon;

class PaypalService
{
    protected $apiBaseUrl;
    protected $accessToken;

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

    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 order($items,$coupon_data)
    {   
        if(!$this->makeAccessToken()){
            return false;
        }

        $purchase_units = [];
        foreach ($items as $key => $item) {

            if($coupon_data != null && in_array($item['id'], $coupon_data->alacarte_id)){

                $discount = 0;
                if($coupon_data->type == 'Amount'){
                    $discount = $coupon_data->discount;
                } else {
                    $discount = ($coupon_data->discount / 100 * $item['final_price']);
                }

                array_push($purchase_units,[
                    'reference_id' => $item['id'],
                    'custom_id' => json_encode([
                        'user_id' => auth()->user()->id,
                        'alacarte_id' => $item['id'],
                        'quantity' => $item['qty'],
                        'discount' => $discount,
                        'coupon_id' => $coupon_data->id
                    ]),
                    'items' => [
                        [
                            'name' => $item['name'],
                            'quantity' => $item['qty'],
                            'unit_amount' => [
                                'currency_code' => 'USD',
                                'value' => $item['final_price'],
                            ]
                        ]
                        
                    ],
                    'amount' => [
                        'currency_code' => 'USD',
                        'value' => ($item['final_price'] * $item['qty']) - ($discount * $item['qty']),
                        'breakdown' => [
                            'item_total' => [
                                'currency_code' => 'USD',
                                'value' => $item['final_price'] * $item['qty']
                            ],
                            'discount' => [
                                'currency_code' => 'USD',
                                'value' => $discount * $item['qty']
                            ]
                        ]
                    ]
                    
                ]);

            } else {

                array_push($purchase_units,[
                    'reference_id' => $item['id'],
                    'custom_id' => json_encode([
                        'user_id' => auth()->user()->id,
                        'alacarte_id' => $item['id'],
                        'quantity' => $item['qty'],
                        'discount' => 0,
                    ]),
                    'items' => [
                        [
                            'name' => $item['name'],
                            'quantity' => $item['qty'],
                            'unit_amount' => [
                                'currency_code' => 'USD',
                                'value' => $item['final_price'],
                            ]
                        ]
                        
                    ],
                    'amount' => [
                        'currency_code' => 'USD',
                        'value' => $item['final_price'] * $item['qty'],
                        'breakdown' => [
                            'item_total' => [
                                'currency_code' => 'USD',
                                'value' => $item['final_price'] * $item['qty']
                            ]
                        ]
                    ]
                    
                ]);
            }
        }

        $post_data = [
            'intent' => 'CAPTURE',
            'purchase_units' => $purchase_units,
            'payment_source' => [
                'paypal' => [
                    'email' => auth()->user()->email,
                    'experience_context' => [
                        'payment_method_preference' => 'IMMEDIATE_PAYMENT_REQUIRED',
                        'brand_name' => 'WTI',
                        'locale' => 'en-US',
                        'landing_page' => 'LOGIN',
                        'shipping_preference' => 'NO_SHIPPING',
                        'user_action' => 'PAY_NOW',
                        'return_url' => url('/a-la-carte'),
                        'cancel_url' => url('/a-la-carte')
                    ],
                ]
            ]
        ];


        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->apiBaseUrl.'/v2/checkout/orders');
        curl_setopt($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;
    }

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

        $ch = curl_init();
        curl_setopt($ch, CURLOPT_URL, $this->apiBaseUrl.'/v2/checkout/orders/'.$order_id.'/capture');
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_POST, 1);
        //curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode(['reason' => 'Approve Subscription']));

        $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;
    }
}