<?php

namespace InnStudio\Prober\Compiler;

class ConfigGeneration
{
    private $phpConfigPath = '';

    private $configPath = '';

    private $configPathDev = '';

    public function __construct(array $args)
    {
        [
            'phpConfigPath' => $this->phpConfigPath,
            'configPath'    => $this->configPath,
            'configPathDev' => $this->configPathDev,
        ] = $args;

        if ( ! \is_file($this->configPath)) {
            $this->die("File invalid: {$this->configPath}");
        }

        if ( ! $this->genPhpConfig()) {
            $this->die('Error: can not generate content to dist.');
        }

        $this->copyConfigToTmp();

        $this->die('PHP config file generated successful.', false);
    }

    private function copyConfigToTmp(): bool
    {
        return \copy($this->configPath, $this->configPathDev);
    }

    private function genPhpConfig(): bool
    {
        $config = \file_get_contents($this->configPath) ?: '';

        if ( ! $config) {
            return false;
        }

        $config = \json_decode($config, true);

        if ( ! $config) {
            return false;
        }

        [
            'APP_VERSION'                  => $appVersion,
            'APP_NAME'                     => $appName,
            'APP_URL'                      => $appUrl,
            'APP_CONFIG_URLS'              => $appConfigUrls,
            'APP_CONFIG_URL_DEV'           => $appConfigUrlDev,
            'APP_TEMPERATURE_SENSOR_URL'   => $appTemperatureSensorUrl,
            'APP_TEMPERATURE_SENSOR_PORTS' => $appTemperatureSensorPorts,
            'AUTHOR_URL'                   => $authorUrl,
            'UPDATE_PHP_URLS'              => $updatePhpUrls,
            'AUTHOR_NAME'                  => $authorName,
            'LATEST_PHP_STABLE_VERSION'    => $latestPhpStableVersion,
            'LATEST_NGINX_STABLE_VERSION'  => $latestNginxStableVersion,
        ] = $config;

        $updatePhpUrls             = \implode("', '", $updatePhpUrls);
        $appConfigUrls             = \implode("', '", $appConfigUrls);
        $appTemperatureSensorPorts = \implode(', ', $appTemperatureSensorPorts);

        $configContent = <<<PHP
<?php
/**
 * The file is automatically generated.
 */

namespace InnStudio\Prober\Components\Config;

class ConfigApi
{
    public static \$APP_VERSION                  = '{$appVersion}';
    public static \$APP_NAME                     = '{$appName}';
    public static \$APP_URL                      = '{$appUrl}';
    public static \$APP_CONFIG_URLS              = array('{$appConfigUrls}');
    public static \$APP_CONFIG_URL_DEV           = '{$appConfigUrlDev}';
    public static \$APP_TEMPERATURE_SENSOR_URL   = '{$appTemperatureSensorUrl}';
    public static \$APP_TEMPERATURE_SENSOR_PORTS = array({$appTemperatureSensorPorts});
    public static \$AUTHOR_URL                   = '{$authorUrl}';
    public static \$UPDATE_PHP_URLS              = array('{$updatePhpUrls}');
    public static \$AUTHOR_NAME                  = '{$authorName}';
    public static \$LATEST_PHP_STABLE_VERSION    = '{$latestPhpStableVersion}';
    public static \$LATEST_NGINX_STABLE_VERSION  = '{$latestNginxStableVersion}';
}

PHP;

        return (bool) \file_put_contents($this->phpConfigPath, $configContent);
    }

    private function die(string $msg, bool $die = true): void
    {
        $msg = "[StyleGeneration] {$msg}\n";

        if ($die) {
            die($msg);
        }

        echo $msg;
    }
}