53 lines
1.5 KiB
PHP
53 lines
1.5 KiB
PHP
<?php
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class FormatFactory
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{
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private array $formatNames = [];
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public function __construct()
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{
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$iterator = new \FilesystemIterator(__DIR__ . '/../formats');
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foreach ($iterator as $file) {
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if (preg_match('/^([^.]+)Format\.php$/U', $file->getFilename(), $m)) {
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$this->formatNames[] = $m[1];
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}
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}
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sort($this->formatNames);
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}
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public function create(string $name): FormatAbstract
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{
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if (! preg_match('/^[a-zA-Z0-9-]*$/', $name)) {
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throw new \InvalidArgumentException('Format name invalid!');
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}
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$sanitizedName = $this->sanitizeName($name);
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if (!$sanitizedName) {
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throw new \InvalidArgumentException(sprintf('Unknown format given `%s`', $name));
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}
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$className = '\\' . $sanitizedName . 'Format';
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return new $className();
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}
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public function getFormatNames(): array
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{
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return $this->formatNames;
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}
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protected function sanitizeName(string $name): ?string
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{
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$name = ucfirst(strtolower($name));
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// Trim trailing '.php' if exists
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if (preg_match('/(.+)(?:\.php)/', $name, $matches)) {
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$name = $matches[1];
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}
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// Trim trailing 'Format' if exists
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if (preg_match('/(.+)(?:Format)/i', $name, $matches)) {
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$name = $matches[1];
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}
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if (in_array($name, $this->formatNames)) {
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return $name;
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}
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return null;
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}
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}
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