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| 1 | <?php |
| 2 | |
| 3 | namespace Dynart\Micro; |
| 4 | |
| 5 | class Config implements ConfigInterface { |
| 6 | |
| 7 | private array $config = []; |
| 8 | private array $cached = []; |
| 9 | |
| 10 | public function __construct() {} |
| 11 | |
| 12 | public function load(string $path): void { |
| 13 | $this->config = array_merge($this->config, parse_ini_file($path, false, INI_SCANNER_TYPED)); |
| 14 | } |
| 15 | |
| 16 | public function clearCache(): void { |
| 17 | $this->cached = []; |
| 18 | } |
| 19 | |
| 20 | public function get(string $name, mixed $default = null, bool $useCache = true): mixed { |
| 21 | if ($useCache && array_key_exists($name, $this->cached)) { |
| 22 | return $this->cached[$name]; |
| 23 | } |
| 24 | if (getenv($name) !== false) { |
| 25 | return $this->cacheAndReturn($name, getenv($name), $useCache); |
| 26 | } |
| 27 | $value = array_key_exists($name, $this->config) ? $this->config[$name] : $default; |
| 28 | return $this->cacheAndReturn($name, $this->replaceEnvValue($value), $useCache); |
| 29 | } |
| 30 | |
| 31 | public function getCommaSeparatedValues(string $name, bool $useCache = true): array { |
| 32 | $values = explode(',', $this->get($name)); |
| 33 | $result = array_map([$this, 'getArrayItemValue'], $values); |
| 34 | return $this->cacheAndReturn($name, $result, $useCache); |
| 35 | } |
| 36 | |
| 37 | public function getArray(string $prefix, array $default = [], bool $useCache = true): array { |
| 38 | global $_ENV; |
| 39 | if ($useCache && array_key_exists($prefix, $this->cached)) { |
| 40 | return $this->cached[$prefix]; |
| 41 | } |
| 42 | $result = $default; |
| 43 | $len = strlen($prefix); |
| 44 | $keys = array_merge(array_keys($this->config), array_keys($_ENV)); |
| 45 | foreach ($keys as $key) { |
| 46 | if (substr($key, 0, $len) != $prefix) { |
| 47 | continue; |
| 48 | } |
| 49 | $configKey = substr($key, $len + 1, strlen($key)); |
| 50 | $parts = explode('.', $configKey); |
| 51 | $current = &$result; |
| 52 | foreach ($parts as $part) { |
| 53 | if (ctype_digit($part)) { |
| 54 | $part = (int)$part; |
| 55 | } |
| 56 | if (!array_key_exists($part, $current)) { |
| 57 | $current[$part] = []; |
| 58 | } |
| 59 | $current = &$current[$part]; |
| 60 | } |
| 61 | $current = $this->get($key, null, false); |
| 62 | } |
| 63 | return $this->cacheAndReturn($prefix, $result, $useCache); |
| 64 | } |
| 65 | |
| 66 | public function isCached(string $name): bool { |
| 67 | return array_key_exists($name, $this->cached); |
| 68 | } |
| 69 | |
| 70 | public function getFullPath(string $path): string { |
| 71 | if (str_starts_with($path, '~')) { |
| 72 | return $this->get(AbstractApp::CONFIG_ROOT_PATH) . substr($path, 1); |
| 73 | } |
| 74 | return $path; |
| 75 | } |
| 76 | |
| 77 | public function rootPath(): string { |
| 78 | return $this->get(AbstractApp::CONFIG_ROOT_PATH, ''); |
| 79 | } |
| 80 | |
| 81 | /** |
| 82 | * Trims and replaces variables to environment variable values in a string |
| 83 | * |
| 84 | * @param string $value The value for trim and replace |
| 85 | * @return string The trimmed and replaced value |
| 86 | */ |
| 87 | protected function getArrayItemValue(string $value): string { |
| 88 | $result = trim($value); |
| 89 | $this->replaceEnvValue($result); |
| 90 | return $result; |
| 91 | } |
| 92 | |
| 93 | /** |
| 94 | * Caches a value if the `$useCache` is true and returns with it |
| 95 | * |
| 96 | * @param string|null $name The config name |
| 97 | * @param mixed $value The value |
| 98 | * @param bool $useCache Use the cache? |
| 99 | * @return mixed |
| 100 | */ |
| 101 | protected function cacheAndReturn(?string $name, mixed $value, bool $useCache = true): mixed { |
| 102 | if ($useCache) { |
| 103 | $this->cached[$name] = $value; |
| 104 | } |
| 105 | return $value; |
| 106 | } |
| 107 | |
| 108 | /** |
| 109 | * Replaces the {{name}} formatted variables in a string with environment variable values |
| 110 | * |
| 111 | * @param mixed $value The value |
| 112 | * @return mixed The value or the replaced string |
| 113 | */ |
| 114 | protected function replaceEnvValue(mixed $value): mixed { |
| 115 | if (!is_string($value)) { |
| 116 | return $value; // don't touch non-strings |
| 117 | } |
| 118 | $matches = []; |
| 119 | if (!preg_match_all('/{{\s*(\w+)\s*}}/', $value, $matches)) { |
| 120 | return $value; |
| 121 | } |
| 122 | $vars = array_unique($matches[1]); |
| 123 | foreach ($vars as $var) { |
| 124 | $value = str_replace('{{' . $var . '}}', getenv($var), $value); |
| 125 | } |
| 126 | return $value; |
| 127 | } |
| 128 | |
| 129 | } |