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<?php |
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namespace CConverter\Calculate; |
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use CConverter\Cache\CacheFile; |
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class Calculate implements CalculateInterface |
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{ |
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/** |
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* @var contains fixer.io api key string |
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*/ |
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protected $api_key; |
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/** |
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* @const contains fixer.io API URL |
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*/ |
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const API_URL = "http://data.fixer.io/api/latest"; |
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/** |
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* get api key |
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* |
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* @param string $key |
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* @return bool |
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*/ |
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public function __construct($key) |
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{ |
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$this->api_key = $key; |
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return true; |
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} |
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/** |
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* change or not float decimals |
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* |
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* @param float $calc |
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* @param int $short |
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* @return float |
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*/ |
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public static function roundValue($calc, $short) |
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{ |
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if($short){ $number = 2; }else{ $number = 5; } |
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$output = round($calc, $number); |
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return $output; |
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} |
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/** |
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* currency conversion, cache check and fixer.io api connection |
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* |
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* @param string|array $getFrom |
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* @param string|array $getTo |
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* @param float $amount |
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* @param bool|int $short |
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* @param bool $isCache |
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* @param int $cacheTime |
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* @return string|array |
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*/ |
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public function getValues($getFrom, $getTo, $amount, $short, $isCache, $cacheTime) |
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{ |
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if($isCache && CacheFile::isCacheDir()){ |
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if(CacheFile::isFile()){ |
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$file = CacheFile::getFileName(); |
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if(CacheFile::isCurrent($file)){ |
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$data = CacheFile::getCache($file); |
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}else{ |
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$data = file_get_contents(self::API_URL."?access_key=".$this->api_key); |
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CacheFile::setNewCacheFile($file, $data, $cacheTime); |
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} |
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}else{ |
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$data = file_get_contents(self::API_URL."?access_key=".$this->api_key); |
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CacheFile::setNewCacheFile(false, $data, $cacheTime); |
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} |
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}else{ |
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$data = file_get_contents(self::API_URL."?access_key=".$this->api_key); |
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} |
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$data = json_decode($data); |
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if($this->validateErrors($data)){ |
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if(is_array($getFrom) || is_array($getTo)){ |
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$newArray = array(); |
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if(is_array($getFrom)){ |
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if(is_array($getTo)){ |
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foreach($getFrom as $currency){ |
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$getA = $data->rates->$currency; |
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foreach($getTo as $currency2){ |
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$getB = $data->rates->$currency2; |
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$calc = Calculate::roundValue(($amount * $getB)/$getA, $short); |
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array_push($newArray, array($currency, array($currency2 => $calc))); |
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} |
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} |
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}else{ |
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foreach($getFrom as $currency){ |
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$getA = $data->rates->$currency; |
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$getB = $data->rates->$getTo; |
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$calc = Calculate::roundValue(($amount * $getB)/$getA, $short); |
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array_push($newArray, array($currency, array($getTo => $calc))); |
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} |
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} |
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}else{ |
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foreach($getTo as $currency){ |
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$getA = $data->rates->$getFrom; |
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$getB = $data->rates->$currency; |
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$calc = Calculate::roundValue(($amount * $getB)/$getA, $short); |
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array_push($newArray, array($getFrom, array($currency => $calc))); |
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} |
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} |
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$output = $newArray; |
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}else{ |
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$getA = $data->rates->$getFrom; |
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$getB = $data->rates->$getTo; |
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$output = Calculate::roundValue(($amount * $getB)/$getA, $short); |
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} |
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}else{ |
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$output = false; |
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} |
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return $output; |
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} |
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/** |
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* validate errors in conncection with fixer.io api |
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* |
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* @param string|array $data |
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* @return bool |
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* @throws \InvalidArgumentException |
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*/ |
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public function validateErrors($data) |
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{ |
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if(!$data->success){ |
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$getErrorCode = $data->error->code; |
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$getErrorInfo = $data->error->info; |
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throw new \InvalidArgumentException("[$getErrorCode] $getErrorInfo"); |
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} |
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return true; |
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} |
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} |
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PatrykKosiba /
currency-converter
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