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<?php |
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/** |
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* Copyright 2016 François Kooman <[email protected]>. |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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namespace fkooman\RemoteStorage\Config; |
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use InvalidArgumentException; |
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use RuntimeException; |
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class Reader |
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{ |
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/** @var array */ |
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private $config; |
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public function __construct(ReaderInterface $reader) |
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{ |
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$this->config = $reader->readConfig(); |
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} |
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public static function isRequired(array $argv) |
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{ |
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foreach ($argv as $arg) { |
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if (is_string($arg)) { |
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continue; |
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} elseif (is_bool($arg)) { |
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return $arg; |
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} else { |
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throw new InvalidArgumentException('invalid argument type'); |
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} |
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} |
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return true; |
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} |
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public static function defaultValue(array $argv) |
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{ |
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$argc = count($argv); |
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for ($i = 1; $i < $argc; ++$i) { |
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if (false === $argv[$i]) { |
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// return next as default value |
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if (array_key_exists($i + 1, $argv)) { |
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return $argv[$i + 1]; |
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} |
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return; |
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} |
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} |
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} |
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public static function configValues(array $argv) |
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{ |
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$configValues = []; |
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foreach ($argv as $arg) { |
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if (!is_string($arg)) { |
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break; |
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} |
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$configValues[] = $arg; |
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} |
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return $configValues; |
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} |
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/** |
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* Get the configuration as a nested array. |
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* |
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* @return array the configuration as a nested array |
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*/ |
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public function getConfig() |
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{ |
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return $this->config; |
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} |
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public function v() |
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{ |
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$argv = func_get_args(); |
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$argc = count($argv); |
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// need at least one parameter |
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if (0 === $argc) { |
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throw new InvalidArgumentException('no configuration field requested'); |
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} |
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// first parameter must be string |
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if (!is_string($argv[0])) { |
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throw new InvalidArgumentException('first argument must be string'); |
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} |
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// if config key exists, return its value |
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$configValues = self::configValues($argv); |
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if (self::configExists($this->config, $configValues)) { |
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return self::getValue($this->config, $configValues); |
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} |
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// if it is required and not available throw error |
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if (self::isRequired($argv)) { |
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throw new RuntimeException( |
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sprintf('configuration value "%s" not found', implode(':', $configValues)) |
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); |
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} |
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// return the default value |
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return self::defaultValue($argv); |
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} |
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private static function configExists(array $configPointer, array $argv) |
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{ |
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foreach ($argv as $arg) { |
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if (!is_array($configPointer)) { |
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return false; |
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} |
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if (!array_key_exists($arg, $configPointer)) { |
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return false; |
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} |
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$configPointer = $configPointer[$arg]; |
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} |
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return true; |
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} |
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private static function getValue(array $configPointer, array $argv) |
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{ |
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foreach ($argv as $arg) { |
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$configPointer = $configPointer[$arg]; |
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} |
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return $configPointer; |
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} |
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} |
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fkooman /
php-remote-storage
