<?php
declare(strict_types=1);

namespace MailAccountAdmin\Config;

class AppConfig
{
    // App settings
    protected string $appTitle = 'MailAccountAdmin';
    protected string $environment = 'production';
    protected bool $debug = false;
    protected string $timezone;
    protected string $dateTimeFormat = 'r';

    // Twig settings
    protected ?string $twigCacheDir = null;

    // Database settings
    protected string $databaseHost = 'localhost';
    protected int $databasePort = 3306;
    protected string $databaseName = '';
    protected string $databaseUsername = '';
    protected string $databasePassword = '';

    protected function __construct()
    {
        // Set default timezone from php.ini
        $this->timezone = ini_get('date.timezone') ?: 'UTC';
    }

    public static function createFromArray(array $configArray): self
    {
        $config = new self();

        foreach ($configArray as $key => $value) {
            assert(property_exists($config, $key));

            if ($value !== null) {
                $config->$key = $value;
            }
        }

        return $config;
    }

    public function getAppTitle(): string
    {
        return $this->appTitle;
    }

    public function getAppEnvironment(): string
    {
        return $this->environment;
    }

    public function isDebugMode(): bool
    {
        return $this->debug;
    }

    public function getTimezone(): string
    {
        return $this->timezone;
    }

    public function getDateTimeFormat(): string
    {
        // Specify datetime format (https://www.php.net/manual/en/datetime.format.php)
        // Default value "r": RFC 2822 formatted date (Thu, 21 Dec 2000 16:01:07 +0200)
        return $this->dateTimeFormat;
    }

    public function getTwigCacheDir(): ?string
    {
        if (empty($this->twigCacheDir)) {
            return null;
        } elseif (substr($this->twigCacheDir, 0, 1) === '/') {
            // Absolute path
            return $this->twigCacheDir;
        } else {
            // Relative path
            return ROOT_DIR . '/' . $this->twigCacheDir;
        }
    }

    public function getTwigSettings(): array
    {
        return [
            'cache' => $this->getTwigCacheDir() ?: false,
            'debug' => $this->isDebugMode(),
            'strict_variables' => $this->isDebugMode(),
        ];
    }

    public function getDatabaseSettings(): array
    {
        return [
            'host' => $this->databaseHost,
            'port' => $this->databasePort,
            'dbname' => $this->databaseName,
            'username' => $this->databaseUsername,
            'password' => $this->databasePassword,
        ];
    }
}