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235 lines
8.3 KiB
PHP
235 lines
8.3 KiB
PHP
<?php
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namespace jrosset\EnvReader;
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use DateTime;
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use DateTimeInterface;
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use Exception;
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use jrosset\Singleton\TSingleton;
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use RangeException;
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use UnexpectedValueException;
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/**
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* Utility class to get informations from ENV file
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*
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* You should overwrite {@see BaseEnv::PATH_ENV} to set ENV file path<br>
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* Overwrite {@see BaseEnv::initProperties()} to set initial properties
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*/
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abstract class BaseEnv {
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use TSingleton;
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/**
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* ENV file path
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*/
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protected const PATH_ENV = '.env';
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/**
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* @var string[] Current properties, read from ENV file (<property name> => <property value>)<br>
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* <b>NOTE:</b> All properties' name are stored in upper-case
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*/
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private array $properties;
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/**
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* Initialize initial properties then read ENV file
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*
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* @throws Exception If ENV can't be read
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*/
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protected function __construct () {
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$this->properties = array_change_key_case($this->initProperties(), CASE_UPPER);
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$this->readEnv();
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}
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/**
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* Get all properties
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*
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* @return string[] Get all properties (properties' name are in upper case)
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*/
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public function getProperties (): array {
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return $this->properties;
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}
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/**
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* Check if a property id defined
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*
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* @param string $name The property name
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*
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* @return bool Is the property defined ?
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*/
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public function hasProperty (string $name): bool {
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return array_key_exists(mb_strtoupper($name), $this->getProperties());
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}
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/**
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* Get a property value
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*
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* @param string $name The property name
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* @param string|null $default The default value if property is not set
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* Raise an exception if property is not set AND $default is Null
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*
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* @return string The property value
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*
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* @throws UnexpectedValueException If property is not set AND $default is Null
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*/
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public function getProperty (string $name, ?string $default = null): string {
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$name = mb_strtoupper($name);
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if (!$this->hasProperty($name)) {
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if ($default === null) {
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throw new UnexpectedValueException('The "' . $name . '" property is not set');
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}
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return $default;
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}
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return $this->properties[$name];
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}
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/**
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* Get a property value as a boolean
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*
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* @param string $name The property name
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* @param bool|null $default The default value if property is not set
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* Raise an exception if property is not set AND $default is Null
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*
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* @return bool The property value
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*
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* @throws UnexpectedValueException If property is not set AND $default is Null
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* @throws RangeException If the property can't be cast to a boolean
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*
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* @noinspection PhpUnused
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*/
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public function getPropertyAsBool (string $name, ?bool $default = null): bool {
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switch ($value = $this->getProperty($name, $default === null ? null : ($default === true ? '1' : '0'))) {
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case '1':
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case 'true':
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return true;
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case '0':
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case 'false':
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return false;
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default:
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throw new RangeException('The "' . $name . '" property is not a valid boolean : ' . $value);
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}
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}
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/**
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* Get a property value as an integer
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*
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* @param string $name The property name
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* @param int|null $default The default value if property is not set
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* Raise an exception if property is not set AND $default is Null
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*
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* @return int The property value
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*
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* @throws UnexpectedValueException If property is not set AND $default is Null
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* @throws RangeException If the property can't be cast to an integer
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*
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* @noinspection PhpUnused
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*/
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public function getPropertyAsInt (string $name, ?int $default = null): int {
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$value = $this->getProperty($name, $default === null ? null : (string)$default);
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if (preg_match('#^\s*(?<value>[0-9]+)\s*$#', $value, $match) !== 1) {
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throw new RangeException('The "' . $name . '" property is not a valid integer : ' . $value);
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}
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return (int)$match['value'];
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}
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/**
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* Get a property value as a float value (the decimal separator is dot)
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*
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* @param string $name The property name
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* @param float|null $default The default value if property is not set
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* Raise an exception if property is not set AND $default is Null
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*
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* @return float The property value
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*
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* @throws UnexpectedValueException If property is not set AND $default is Null
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* @throws RangeException If the property can't be cast to a float value
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*
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* @noinspection PhpUnused
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*/
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public function getPropertyAsReal (string $name, ?float $default = null): float {
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$value = $this->getProperty($name, $default === null ? null : (string)$default);
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if (preg_match('#^\s*(?<value>[0-9]+(?:\.[0-9]+)?)\s*$#', $value, $match) !== 1) {
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throw new RangeException('The "' . $name . '" property is not a valid float value : ' . $value);
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}
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return (float)$match['value'];
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}
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/**
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* Get a property value as a date and time ({@link https://www.php.net/manual/book.datetime.php DateTime})
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*
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* The date <b>must</b> respect {@link https://datatracker.ietf.org/doc/html/rfc3339 RFC339} norm
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*
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* @param string $name The property name
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* @param DateTime|null $default The default value if property is not set
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* Raise an exception if property is not set AND $default is Null
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*
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* @return DateTime The property value
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*
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* @throws UnexpectedValueException If property is not set AND $default is Null
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* @throws RangeException If the property can't be cast to a date and time
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*
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* @noinspection PhpUnused
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*/
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public function getPropertyAsDateTime (string $name, ?DateTime $default = null): DateTime {
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$value = DateTime::createFromFormat(
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DateTimeInterface::RFC3339,
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$this->getProperty($name, $default === null ? null : $default->format(DateTimeInterface::RFC3339))
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);
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$errors = DateTime::getLastErrors();
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if ($errors !== false) {
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$messages = [];
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if (($nb_error = $errors['error_count']) > 0) {
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foreach ($errors['errors'] as $idx => $error) {
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$messages[] = 'ERREUR #' . $idx . ' : ' . $error;
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}
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}
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if (($nb_warning = $errors['warning_count']) > 0) {
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foreach ($errors['warnings'] as $idx => $warning) {
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$messages[] = 'ALERTE #' . $idx . ' : ' . $warning;
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}
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}
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if ($nb_error + $nb_warning > 0) {
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throw new RangeException('The "' . $name . '" property is not a valid date and time : ' . $value . "\n\n" . implode("\n", $messages));
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}
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}
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if ($value === false) {
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throw new RangeException('The "' . $name . '" property is not a valid date and time : ' . $value);
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}
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return $value;
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}
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/**
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* Initialize initial properties
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*
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* @return string[] Properties initial values (<property name> => <property value>)
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*/
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protected function initProperties (): array {
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return [
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'APP_DEV' => 0,
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];
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}
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/**
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* Read the ENV file
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*
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* @throws Exception If ENV can't be read
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*/
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private function readEnv (): void {
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if (!file_exists(static::PATH_ENV)) {
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return;
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}
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$lines = file(static::PATH_ENV, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
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if ($lines === false) {
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throw new Exception('Unable to read environment file "' . static::PATH_ENV . '"');
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}
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foreach ($lines as $line) {
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if (preg_match('/^\s*(?:(?<comment>#).+|(?<key>[a-zA-Z0-9_-]+)=(?<value>.+))$/i', $line, $match) !== 1) {
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continue; // Ligne invalide
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}
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if (isset($match['comment']) && trim($match['comment']) !== '') {
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continue; // Commentaire
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}
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$this->properties[mb_strtoupper($match['key'])] = $match['value'];
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}
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}
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} |