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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /** Namespace */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace MatheusBastos\CafeApi;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                /**  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * Api abstract class  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                 * @package MatheusBastos\CafeApi  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                 */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                abstract class CafeApi  | 
            
            
                                                                        
                            
            
                                    
            
            
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                { | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /** @var string */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $api_url;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /** @var array */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $headers;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /** @var array */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $fields;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /** @var string */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $endpoint;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /** @var string */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private $method;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /** @var object */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected $response;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Api constructor  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $apiUrl  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $email  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $password  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    public function __construct(string $api_url, string $email, string $password)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->api_url = $api_url;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->headers([  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            'email' => $email,  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                            'password' => $password,  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        ]);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Api request  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $method  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param string $endpoint  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param array|null $fields  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param array|null $headers  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return void  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    protected function request(string $method, string $endpoint, array $fields = null, array $headers = null): void  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->method = $method;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->endpoint = $endpoint;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->fields = $fields;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->headers($headers);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        $this->dispatch();  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Api response  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return object|null  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function response()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $this->response;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Api error  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return object|null  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    public function error()  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!empty($this->response->errors)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            return $this->response->errors;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return null;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Api headers  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @param array|null $headers  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return void  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    private function headers(?array $headers): void  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    { | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if (!$headers) { | 
            
                            
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                            return;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        foreach ($headers as $key => $header) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                            $this->headers[] = "{$key}: {$header}"; | 
            
            
                                                                        
                            
            
                                    
            
            
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                        }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    /**  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * Api dispatch  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     * @return void  | 
            
            
                                                                        
                            
            
                                    
            
            
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                     */  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    private function dispatch(): void  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $curl = curl_init();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        if (empty($this->fields['files'])) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            $this->fields = !empty($this->fields) ? http_build_query($this->fields) : null;  | 
            
                            
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                        }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        curl_setopt_array($curl, [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_URL => "{$this->api_url}/{$this->endpoint}", | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_RETURNTRANSFER => true,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_MAXREDIRS => 10,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_TIMEOUT => 30,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_CUSTOMREQUEST => $this->method,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_POSTFIELDS => $this->fields,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            CURLOPT_HTTPHEADER => $this->headers,  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        ]);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                        $this->response = json_decode(curl_exec($curl));  | 
            
                            
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                        curl_close($curl);  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                    }  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                                        
                                                                
            
                                    
            
            
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This check marks implicit conversions of arrays to boolean values in a comparison. While in PHP an empty array is considered to be equal (but not identical) to false, this is not always apparent.
Consider making the comparison explicit by using
empty(..)or! empty(...)instead.