<?php

namespace Crater\Space;

use Exception;
use Illuminate\Http\Request;
use Crater\Http\Requests\DatabaseEnvironmentRequest;
use Crater\Http\Requests\MailEnvironmentRequest;
use Illuminate\Support\Facades\DB;
use Illuminate\Support\Facades\Artisan;

class EnvironmentManager
{
    /**
     * @var string
     */
    private $envPath;

    /**
     * Set the .env and .env.example paths.
     */
    public function __construct()
    {
        $this->envPath = base_path('.env');
    }

    /**
     * Save the form content to the .env file.
     *
     * @param DatabaseEnvironmentRequest $request
     * @return array
     */
    public function saveDatabaseVariables(DatabaseEnvironmentRequest $request)
    {
        $oldDatabaseData =
            'DB_CONNECTION='.config('database.default')."\n".
            'DB_HOST='.config('database.connections.'.config('database.default').'.host')."\n".
            'DB_PORT='.config('database.connections.'.config('database.default').'.port')."\n".
            'DB_DATABASE='.config('database.connections.'.config('database.default').'.database')."\n".
            'DB_USERNAME='.config('database.connections.'.config('database.default').'.username')."\n".
            'DB_PASSWORD='.config('database.connections.'.config('database.default').'.password')."\n\n";

        $newDatabaseData =
            'DB_CONNECTION='.$request->database_connection."\n".
            'DB_HOST='.$request->database_hostname."\n".
            'DB_PORT='.$request->database_port."\n".
            'DB_DATABASE='.$request->database_name."\n".
            'DB_USERNAME='.$request->database_username."\n".
            'DB_PASSWORD='.$request->database_password."\n\n";

        if (! $this->checkDatabaseConnection($request)) {

            return [
                'error' => 'connection_failed'
            ];
        } else {
            if(count(DB::connection()->select('SHOW TABLES'))) {
                return [
                    'error' => 'database_should_be_empty'
                ];
            }
        }

        try {

            file_put_contents($this->envPath, str_replace(
                $oldDatabaseData,
                $newDatabaseData,
                file_get_contents($this->envPath)
            ));

            file_put_contents($this->envPath, str_replace(
                'APP_URL='.config('app.url'),
                'APP_URL='.$request->app_url,
                file_get_contents($this->envPath)
            ));

        } catch (Exception $e) {
            return [
                'error' => 'database_variables_save_error'
            ];
        }

        return [
            'success' => 'database_variables_save_successfully'
        ];
    }

    /**
     * Save the form content to the .env file.
     *
     * @param Request $request
     * @return array
     */
    public function saveMailVariables(MailEnvironmentRequest $request)
    {

        $mailData = $this->getMailData($request);
        dd($mailData);
//         extra_mail_data
// extra_old_mail_data
        try {

            file_put_contents($this->envPath, str_replace(
                $mailData['old_mail_data'],
                $mailData['new_mail_data'],
                file_get_contents($this->envPath)
            ));

        } catch (Exception $e) {
            return [
                'error' => 'mail_variables_save_error'
            ];
        }

        return [
            'success' => 'mail_variables_save_successfully'
        ];
    }

    private function getMailData($request)
    {
        $mailFromCredential = "";
        $extraMailData = "";
        $extraOldMailData = "";
        $oldMailData = "";
        $newMailData = "";

        if(env('MAIL_FROM_ADDRESS') && env('MAIL_FROM_NAME')) {
            $mailFromCredential =
                'MAIL_FROM_ADDRESS='.config('mail.from.address')."\n".
                'MAIL_FROM_NAME='.config('mail.from.name')."\n\n";
        }

        switch ($request->mail_driver) {
            case 'smtp':

                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;
        
                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.$request->mail_host."\n".
                    'MAIL_PORT='.$request->mail_port."\n".
                    'MAIL_USERNAME='.$request->mail_username."\n".
                    'MAIL_PASSWORD='.$request->mail_password."\n";
                    'MAIL_ENCRYPTION='.$request->mail_encryption."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";
                break;

            case 'mailgun':
                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;
        
                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.$request->mail_host."\n".
                    'MAIL_PORT='.$request->mail_port."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.$request->mail_encryption."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";

                $extraMailData=
                    'MAILGUN_DOMAIN='.$request->mail_mailgun_domain."\n".
                    'MAILGUN_SECRET='.$request->mail_mailgun_secret."\n".
                    'MAILGUN_ENDPOINT='.$request->mail_mailgun_endpoint."\n\n";

                if(env('MAILGUN_DOMAIN') && env('MAILGUN_SECRET') && env('MAILGUN_ENDPOINT')) {
                    $extraOldMailData =
                        'MAILGUN_DOMAIN='.config('services.mailgun.domain')."\n".
                        'MAILGUN_SECRET='.config('services.mailgun.secret')."\n".
                        'MAILGUN_ENDPOINT='.config('services.mailgun.endpoint')."\n\n";
                }

                break;

            case 'sparkpost':
                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;

                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.$request->mail_host."\n".
                    'MAIL_PORT='.$request->mail_port."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.$request->mail_encryption."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";

                $extraMailData=
                    'SPARKPOST_SECRET='.$request->mail_sparkpost_secret."\n\n";

                    if(env('SPARKPOST_SECRET')) {
                        $extraOldMailData =
                            'SPARKPOST_SECRET='.config('services.sparkpost.secret')."\n\n";
                    }
                break;

            case 'ses':
                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;

                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.$request->mail_host."\n".
                    'MAIL_PORT='.$request->mail_port."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.$request->mail_encryption."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";

                $extraMailData=
                    'SES_KEY='.$request->mail_ses_key."\n".
                    'SES_SECRET='.$request->mail_ses_secret."\n\n";

                if(env('SES_KEY') && env('SES_SECRET')) {
                    $extraOldMailData =
                        'SES_KEY='.config('services.ses.key')."\n".
                        'SES_SECRET='.config('services.ses.secret')."\n\n";
                }
                break;

            case 'mail':
                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;

                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";
                break;

            case 'sendmail':
                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;

                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";
                break;

            case 'mandrill':
                $oldMailData =
                    'MAIL_DRIVER='.config('mail.driver')."\n".
                    'MAIL_HOST='.config('mail.host')."\n".
                    'MAIL_PORT='.config('mail.port')."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.config('mail.encryption')."\n\n".
                    $mailFromCredential;

                $newMailData =
                    'MAIL_DRIVER='.$request->mail_driver."\n".
                    'MAIL_HOST='.$request->mail_host."\n".
                    'MAIL_PORT='.$request->mail_port."\n".
                    'MAIL_USERNAME='.config('mail.username')."\n".
                    'MAIL_PASSWORD='.config('mail.password')."\n";
                    'MAIL_ENCRYPTION='.$request->mail_encryption."\n\n".
                    'MAIL_FROM_ADDRESS='.$request->from_mail."\n".
                    'MAIL_FROM_NAME='.$request->from_name."\n\n";

                $extraMailData=
                    'MANDRILL_API_KEY='.$request->mail_mandrill_secret."\n\n";

                if(env('MANDRILL_API_KEY')) {
                    $extraOldMailData =
                        'MANDRILL_API_KEY='.config('services.mandrill.secret')."\n\n";
                }
                break;
        }

        return [
            'old_mail_data' => $oldMailData,
            'new_mail_data' => $newMailData,
            'extra_mail_data' => $extraMailData,
            'extra_old_mail_data' => $extraOldMailData
        ];
    }

    /**
     *
     * @param DatabaseEnvironmentRequest $request
     * @return bool
     */
    private function checkDatabaseConnection(DatabaseEnvironmentRequest $request)
    {
        $connection = $request->database_connection;

        $settings = config("database.connections.$connection");

        config([
            'database' => [
                'migrations' => 'migrations',
                'default' => $connection,
                'connections' => [
                    $connection => array_merge($settings, [
                        'driver'   => $connection,
                        'host'     => $request->database_hostname,
                        'port'     => $request->database_port,
                        'database' => $request->database_name,
                        'username' => $request->database_username,
                        'password' => $request->database_password,
                    ]),
                ],
            ],
        ]);

        try {
            DB::connection()->getPdo();

            return true;
        } catch (Exception $e) {
            return false;
        }
    }
}