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                <?php  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                declare(strict_types=1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                namespace Elvendor\Tcmb;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Elvendor\Tcmb\Models\ExchangeRate;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use DateTime;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                use Exception;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                class Tcmb  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    const currencies = [  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    	'USD' => ['index' => 0, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'AUD' => ['index' => 1, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'DKK' => ['index' => 2, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'EUR' => ['index' => 3, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'GBP' => ['index' => 4, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'CHF' => ['index' => 5, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'SEK' => ['index' => 6, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'CAD' => ['index' => 7, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'KWD' => ['index' => 8, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'NOK' => ['index' => 9, 'unit'  => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'SAR' => ['index' => 10, 'unit' => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'JPY' => ['index' => 11, 'unit' => 100],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'BGN' => ['index' => 12, 'unit' => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'RON' => ['index' => 13, 'unit' => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'RUB' => ['index' => 14, 'unit' => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'IRR' => ['index' => 15, 'unit' => 100],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'CNY' => ['index' => 16, 'unit' => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'PKR' => ['index' => 17, 'unit' => 1],  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		'QAR' => ['index' => 18, 'unit' => 1]  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	];  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	public static function fetchRates(DateTime $date) : array  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	{ | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$rates = [];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$response = null;  | 
            
                            
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                        $response = @simplexml_load_file('https://www.tcmb.gov.tr/kurlar/' . $date->format('Ym') . '/' . $date->format('dmY') . '.xml'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                        if ($response) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$currencies = config('tcmb.currencies'); | 
            
            
                                                                        
                            
            
                                    
            
            
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                			foreach ($currencies as $currency) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                				if (array_key_exists($currency, self::currencies)) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                					$index = self::currencies[$currency]['index'];  | 
            
            
                                                                        
                            
            
                                    
            
            
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                					data_set($rates, "{$currency}.buy", (float)$response->Currency[$index]->ForexBuying); | 
            
            
                                                                        
                            
            
                                    
            
            
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                					data_set($rates, "{$currency}.sell", (float)$response->Currency[$index]->ForexSelling); | 
            
            
                                                                        
                            
            
                                    
            
            
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                				}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	        $response = null;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	    }  | 
            
            
                                                                        
                            
            
                                    
            
            
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                        return $rates;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public static function convert(float $amount, $from, $to, $date = false, int $decimals = 4) : float  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    	if ($from !== $to && $amount > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	        $date = new DateTime($date ?: date('Y-m-d')); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	        $rates = ExchangeRate::actualForDate($date)->orderByDesc('date')->first(); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	        $rates = data_get($rates, 'rates');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	       	if (!$rates) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	       		$rates = self::fetchRates($date);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	       	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	       	if ($rates && array_key_exists($to, $rates) && array_key_exists($from, $rates) && $rates[$to]['buy'] > 0 && $rates[$from]['sell'] > 0) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		        $base = 'TRY';  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	            if ($from === $base) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	                $amount = $amount / (float)$rates[$to]['buy'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	            } elseif ($to === $base) { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	                $amount = $amount * (float)$rates[$from]['sell'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	            } else { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	                $amount = $amount * (float)$rates[$from]['sell'] / (float)$rates[$to]['buy'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	            }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		    }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return (float)number_format($amount, $decimals, '.', '');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    }  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                }  | 
            
            
                                                        
            
                                    
            
            
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