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<?php |
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namespace Jellyfish\Config; |
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use ArrayObject; |
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use Exception; |
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use Jellyfish\Config\Exception\ConfigKeyNotFoundException; |
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use Jellyfish\Config\Exception\NotSupportedConfigValueTypeException; |
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class Config implements ConfigInterface |
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{ |
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protected const CONFIG_FILE_PREFIX = 'config-'; |
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protected const CONFIG_FILE = 'default'; |
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protected const CONFIG_FILE_SUFFIX = '.php'; |
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/** |
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* @var \ArrayObject|null |
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*/ |
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protected $config; |
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/** |
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* @var string |
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*/ |
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protected $appDir; |
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/** |
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* @var string |
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*/ |
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protected $environment; |
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/** |
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* @param string $appDir |
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* @param string $environment |
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* |
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* @throws Exception |
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*/ |
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public function __construct( |
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string $appDir, |
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string $environment |
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) { |
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$this->appDir = $appDir; |
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$this->environment = $environment; |
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$this->initialize(); |
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} |
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/** |
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* @param string $key |
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* @param string|null $default |
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* |
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* @return string |
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* |
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* @throws \Jellyfish\Config\Exception\ConfigKeyNotFoundException |
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* @throws \Jellyfish\Config\Exception\NotSupportedConfigValueTypeException |
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*/ |
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public function get(string $key, ?string $default = null): string |
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{ |
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if ($default !== null && !$this->hasValue($key)) { |
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return $default; |
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} |
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if (!$this->hasValue($key)) { |
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throw new ConfigKeyNotFoundException(sprintf('Could not find key "%s" in "%s"', $key, __CLASS__)); |
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} |
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return $this->getValue($key); |
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} |
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/** |
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* @param string $key |
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* |
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* @return string |
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* |
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* @throws \Jellyfish\Config\Exception\NotSupportedConfigValueTypeException |
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*/ |
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protected function getValue(string $key): string |
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{ |
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$value = $this->config[$key]; |
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if (\is_string($value)) { |
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return $value; |
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} |
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if (\is_int($value) || \is_float($value) || \is_bool($value)) { |
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return (string) $value; |
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} |
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throw new NotSupportedConfigValueTypeException(sprintf('Value type for key "%s" is not supported.', $key)); |
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} |
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/** |
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* @param string $key |
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* |
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* @return bool |
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*/ |
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protected function hasValue(string $key): bool |
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{ |
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return isset($this->config[$key]); |
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} |
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/** |
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* @return void |
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* |
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* @throws Exception |
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*/ |
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protected function initialize(): void |
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{ |
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$config = new ArrayObject(); |
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$this->buildConfig($config); |
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$this->buildConfig($config, $this->environment); |
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$this->config = $config; |
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} |
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/** |
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* @param \ArrayObject $config |
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* @param string $environment |
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* |
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* @return \ArrayObject |
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*/ |
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protected function buildConfig(ArrayObject $config, string $environment = null): ArrayObject |
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{ |
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$configFile = $environment ?? self::CONFIG_FILE; |
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$fileName = self::CONFIG_FILE_PREFIX . $configFile . self::CONFIG_FILE_SUFFIX; |
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$pathToConfigFile = $this->appDir . $fileName; |
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if (file_exists($pathToConfigFile)) { |
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include $pathToConfigFile; |
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} |
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return $config; |
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} |
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} |
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jellyfishphp /
jellyfish
