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<?php |
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namespace ntentan\config; |
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class Config implements \ArrayAccess |
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{ |
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private $config; |
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private $context = 'default'; |
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/** |
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* Reads the configurations stored at a given path. |
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* |
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* Path could either point to a directory or a specific file. In the case of |
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* a file, the contents of the file are read into the config object. However, |
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* in the case of a directory, the contents of all the files in the directory |
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* are read into the config file with configurations from each file prefixed with |
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* the file name. |
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* |
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* @param string $path |
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* @return Config |
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*/ |
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public function readPath($path) |
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{ |
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if (is_dir($path)) { |
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$dir = new Directory($path); |
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$this->config = ['default' => $this->expand($dir->parse())]; |
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foreach ($dir->getContexts() as $context) { |
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$this->config[$context] = array_merge( |
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$this->config['default'], $this->expand($dir->parse($context)) |
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); |
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} |
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} else if (is_file($path)) { |
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$this->config[$this->context] = $this->expand(File::read($path)); |
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} else { |
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throw new \ntentan\utils\exceptions\FileNotFoundException($path); |
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} |
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return $this; |
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} |
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public function isKeySet($key) |
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{ |
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return isset($this->config[$this->context][$key]); |
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} |
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public function get($key, $default = null) |
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{ |
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return isset($this->config[$this->context][$key]) ? $this->config[$this->context][$key] : $default; |
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} |
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public function setContext($context) |
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{ |
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$this->context = $context; |
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} |
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public function set($key, $value) |
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{ |
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$keys = explode('.', $key); |
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$this->config[$this->context] = $this->setValue($keys, $value, $this->config[$this->context]); |
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$this->config[$this->context][$key] = $value; |
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} |
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private function setValue($keys, $value, $config, $nested = [], &$merge = []) |
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{ |
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if (!empty($keys)) { |
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$key = array_shift($keys); |
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$nested[] = $key; |
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$config[$key] = $this->setValue($keys, $value, isset($config[$key]) ? $config[$key] : [], $nested, $merge); |
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if(count($nested) > 1) { |
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$merge[implode('.', $nested)] = $config[$key]; |
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} |
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else if(count($nested) == 1) { |
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$config = array_merge($config, $merge); |
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} |
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return $config; |
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} else { |
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return $value; |
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} |
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} |
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private function expand($array, $prefix = null) |
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{ |
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$config = []; |
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if (!is_array($array)) |
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return $config; |
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$dottedPrefix = $prefix ? "$prefix." : ""; |
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foreach ($array as $key => $value) { |
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$newPrefix = $dottedPrefix . $key; |
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$config[$newPrefix] = $value; |
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$config += $this->expand($value, $newPrefix); |
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} |
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if ($prefix) |
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$config[$prefix] = $array; |
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return $config; |
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} |
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public function offsetExists($offset): bool |
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{ |
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return isset($this->config[$this->context][$offset]); |
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} |
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public function offsetGet($offset) |
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{ |
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return $this->config[$this->context][$offset]; |
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} |
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public function offsetSet($offset, $value): void |
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{ |
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$this->set($offset, $value); |
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} |
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public function offsetUnset($offset): void |
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{ |
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// Do nothing for now ... |
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} |
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} |
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ntentan /
config
