dotfiles/php/includes/config.php

<?php

require_once __DIR__ . '/functions.php';

readonly class homeConfig extends config
{
    private const CONFIG_BASE_PATH = '.config';

    public function __construct(
        string $name
    )
    {
        parent::__construct(path(
            getenv('HOME'),
            self::CONFIG_BASE_PATH,
            $name
        ));
        $this->createConfig();
    }

    private function createConfig(): void
    {
        if (file_exists($this->getConfigFile())) {
            return;
        } else {
            if (!is_dir($this->getConfigPath())) {
                mkdir($this->getConfigPath(), 0755, true);
            }
            $this->writeConfig([]);
        }
    }
}

readonly class config
{
    public function __construct(
        private string $path,
        private string $fileName = 'config.php',
    ) {}

    public function get(string $key, mixed $default = null): mixed
    {
        if (!file_exists($this->getConfigFile())) {
            return $default;
        }
        $config = include $this->getConfigFile();
        return $config[$key] ?? $default;
    }

    public function set(string $key, mixed $value): void
    {
        $config = include $this->getConfigFile();
        $config[$key] = $value;
        $this->writeConfig($config);
    }

    protected function getConfigFile(): string
    {
        return path($this->getConfigPath(), $this->fileName);
    }

    protected function getConfigPath(): string
    {
        return $this->path;
    }

    protected function writeConfig(array $config): void
    {
        file_put_contents($this->getConfigFile(), '<?php return ' . var_export($config, true) . ';');
    }
}