<?php

declare(strict_types=1);
/**
 * @copyright Copyright (c) 2020, Joas Schilling <coding@schilljs.com>
 *
 * @author Joas Schilling <coding@schilljs.com>
 *
 * @license GNU AGPL version 3 or any later version
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

namespace OCA\TalkMatterbridge\Migration;

use OCP\IConfig;
use OCP\Migration\IOutput;
use OCP\Migration\IRepairStep;

class RegisterBinary implements IRepairStep {

	public const VERSION = '1.26.0';

	/** @var IConfig */
	protected $config;

	public function __construct(IConfig $config) {
		$this->config = $config;
	}

	public function getName(): string {
		return 'Register the Matterbridge binary';
	}

	public function run(IOutput $output): void {
		$binaryDir = dirname(__DIR__, 2) . '/bin/';

		if (PHP_INT_SIZE === 8) {
			$binaryPath = $binaryDir . 'matterbridge-' . self::VERSION . '-linux-arm64';
			$version = $this->testBinary($binaryPath);
			if ($version === null) {
				$binaryPath = $binaryDir . 'matterbridge-' . self::VERSION . '-linux-64bit';
				$version = $this->testBinary($binaryPath);
				if ($version === null) {
					$output->warning('Failed to read version from matterbridge binary');
				}
			}
		} else {
			$binaryPath = $binaryDir . 'matterbridge-' . self::VERSION . '-linux-32bit';
			$version = $this->testBinary($binaryPath);
			if ($version === null) {
				$output->warning('Failed to read version from matterbridge binary');
			} else {
				$output->info('Found matterbridge binary version: ' . $version);
			}
		}

		// Write the app config
		$this->config->setAppValue('spreed', 'matterbridge_binary', $binaryPath);
	}

	protected function testBinary(string $binaryPath): ?string {
		// Make binary executable
		chmod($binaryPath, 0755);

		$cmd = escapeshellcmd($binaryPath) . ' ' . escapeshellarg('-version');
		try {
			@exec($cmd, $output, $returnCode);
		} catch (\Throwable $e) {
		}

		if ($returnCode !== 0) {
			return null;
		}

		return trim(implode("\n", $output));
	}
}