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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Nikandlv\LaravelCafebazaar;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Exception;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use GuzzleHttp\Exception\RequestException;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Support\Facades\Cache;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Illuminate\Http\Request;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class LaravelCafebazaar { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    function __construct() { | 
            
                            
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                        if(empty($this->code)) {   | 
            
                            
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                            throw new Exception("Code not found. run php artisan Cafebazaar code"); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->guzzle = new \GuzzleHttp\Client(["base_uri" => "https://pardakht.cafebazaar.ir/devapi/v2/"]);  | 
            
                            
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                        $this->data = $this->getCache();  | 
            
                            
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                        $this->code = $this->getCode();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if(empty($this->data)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->updateToken();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->refreshToken();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    protected function updateToken() { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if(empty($this->data)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            try { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $response = $this->guzzle->post("auth/token/", [ | 
            
            
                                                                        
                            
            
                                    
            
            
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                                    'form_params' => [  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        "grant_type" => 'authorization_code',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        'code' => $this->code,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        "client_id" => config('laravel-cafebazaar.client_id'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        "client_secret" => config('laravel-cafebazaar.client_secret'), | 
            
            
                                                                        
                            
            
                                    
            
            
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                                        "redirect_uri" => config('laravel-cafebazaar.redirect_uri'),     | 
            
            
                                                                        
                            
            
                                    
            
            
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                                   ],  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                ]);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $this->data = json_decode($response->getBody()->getContents());  | 
            
            
                                                                        
                            
            
                                    
            
            
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                                $this->setCache($this->data);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            } catch (RequestException $exception) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                                throw $exception;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function refreshToken() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        try { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            if(!isset($this->data->refresh_token)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $refresh_token = $this->data->refresh_token;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $response = $this->guzzle->post("auth/token/", [ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                'form_params' => [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    "grant_type" => 'refresh_token',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    "client_id" => config('laravel-cafebazaar.client_id'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    "client_secret" => config('laravel-cafebazaar.client_secret'), | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                                    "refresh_token" => $refresh_token  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                               ],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->data = json_decode($response->getBody()->getContents());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->data->refresh_token = $refresh_token;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->setCache($this->data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        } catch (RequestException $exception) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            throw $exception;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }      | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function getCache() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return Cache::get('laravel-cafebazaar'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function setCache($cache) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        Cache::forever('laravel-cafebazaar', $cache); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    protected function getCode() { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return Cache::get('laravel-cafebazaar-code'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function verifyPurchase($package_id, $product_id, $purchase_token) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->updateToken();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $response = $this->guzzle->get("api/validate/$package_id/inapp/$product_id/purchases/$purchase_token?access_token=".$this->data->access_token); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $data = json_decode($response->getBody()->getContents());  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        return new CafebazaarPurchase($data);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public static function handleRedirect(Request $request) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $code = $request->input('code'); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if(!empty($code)) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            Cache::forever('laravel-cafebazaar-code', $code); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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Adding explicit visibility (
private,protected, orpublic) is generally recommend to communicate to other developers how, and from where this method is intended to be used.