#!/usr/bin/env php
<?php
/* Copyright (C) 2026 Moko Consulting <hello@mokoconsulting.tech>
 *
 * This file is part of a Moko Consulting project.
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * FILE INFORMATION
 * DEFGROUP: MokoStandards.Scripts.Deploy
 * INGROUP: MokoStandards
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
 * PATH: /deploy/deploy-dolibarr.php
 * VERSION: 01.00.00
 * BRIEF: Deploy Dolibarr module files to a remote server via SFTP/rsync
 */

declare(strict_types=1);

class DeployDolibarr
{
	private bool $verbose = false;
	private bool $dryRun = false;
	private string $configPath = '';
	private string $source = '';

	private const MODULE_DIRS = [
		'core/modules',
		'class',
		'lib',
		'sql',
		'langs',
		'css',
		'js',
		'img',
	];

	private const EXCLUDES = [
		'.git/',
		'vendor/',
		'tests/',
		'node_modules/',
	];

	public function run(): int
	{
		$this->parseArgs();

		if ($this->configPath === '' || $this->source === '') {
			$this->log('Usage: deploy-dolibarr.php --source <local-path> --config <sftp-config.json> [--dry-run] [--verbose]');
			return 1;
		}

		if (!is_dir($this->source)) {
			$this->log("ERROR: Source directory does not exist: {$this->source}");
			return 1;
		}

		$moduleName = $this->detectModuleName();
		if ($moduleName === null) {
			$this->log('ERROR: Could not auto-detect module name. Expected core/modules/mod*.class.php');
			return 1;
		}

		$config = $this->loadConfig($this->configPath);
		if ($config === null) {
			return 1;
		}

		$host = $config['host'] ?? '';
		$user = $config['user'] ?? '';
		$port = (int) ($config['port'] ?? 22);
		$remotePath = rtrim($config['remote_path'] ?? '', '/');
		$sshKey = $config['ssh_key_file'] ?? '';

		if ($host === '' || $user === '' || $remotePath === '') {
			$this->log('ERROR: Config must contain host, user, and remote_path.');
			return 1;
		}

		$remoteBase = "{$remotePath}/htdocs/custom/{$moduleName}";

		$this->log("Deploying Dolibarr module: {$moduleName}");
		$this->log("Source:  {$this->source}");
		$this->log("Target:  {$user}@{$host}:{$remoteBase}");

		if ($this->dryRun) {
			$this->log('*** DRY RUN — no changes will be made ***');
		}

		$failed = 0;

		// Deploy subdirectories
		foreach (self::MODULE_DIRS as $dir) {
			$localDir = rtrim($this->source, '/\\') . '/' . $dir . '/';

			if (!is_dir($localDir)) {
				if ($this->verbose) {
					$this->log("SKIP: {$dir} (not present in source)");
				}
				continue;
			}

			$remoteTarget = "{$remoteBase}/{$dir}/";
			$result = $this->rsyncDir($localDir, $remoteTarget, $host, $user, $port, $sshKey);

			if (!$result) {
				$failed++;
			}
		}

		// Deploy root PHP files
		$rootPhpFiles = glob(rtrim($this->source, '/\\') . '/*.php');
		if (!empty($rootPhpFiles)) {
			$this->log('Syncing root PHP files...');
			$sourceRoot = rtrim($this->source, '/\\') . '/';
			$remoteTarget = "{$remoteBase}/";

			$sshCmd = "ssh -p {$port}";
			if ($sshKey !== '') {
				$sshCmd .= " -i " . escapeshellarg($sshKey);
			}

			$cmd = $this->buildRsyncCommand(
				$sshCmd,
				$sourceRoot,
				"{$user}@{$host}:{$remoteTarget}",
				['--include=*.php', '--exclude=*/', '--exclude=.*']
			);

			if ($this->verbose) {
				$this->log("CMD: {$cmd}");
			}

			$output = [];
			$exitCode = 0;
			exec($cmd, $output, $exitCode);

			if ($exitCode !== 0) {
				$this->log("ERROR: rsync failed for root PHP files (exit code {$exitCode})");
				foreach ($output as $line) {
					$this->log("  {$line}");
				}
				$failed++;
			} else {
				if ($this->verbose) {
					foreach ($output as $line) {
						$this->log("  {$line}");
					}
				}
			}
		}

		if ($failed > 0) {
			$this->log("Deployment completed with {$failed} error(s).");
			return 1;
		}

		$this->log('Deployment completed successfully.');
		return 0;
	}

	private function parseArgs(): void
	{
		$args = $_SERVER['argv'] ?? [];
		$count = count($args);

		for ($i = 1; $i < $count; $i++) {
			switch ($args[$i]) {
				case '--source':
					$this->source = $args[++$i] ?? '';
					break;
				case '--config':
					$this->configPath = $args[++$i] ?? '';
					break;
				case '--dry-run':
					$this->dryRun = true;
					break;
				case '--verbose':
					$this->verbose = true;
					break;
			}
		}
	}

	private function detectModuleName(): ?string
	{
		$pattern = rtrim($this->source, '/\\') . '/core/modules/mod*.class.php';
		$matches = glob($pattern);

		if (empty($matches)) {
			return null;
		}

		$filename = basename($matches[0]);
		// mod{ModuleName}.class.php → extract ModuleName, lowercase it
		if (preg_match('/^mod(.+)\.class\.php$/', $filename, $m)) {
			return strtolower($m[1]);
		}

		return null;
	}

	private function loadConfig(string $path): ?array
	{
		if (!is_file($path)) {
			$this->log("ERROR: Config file not found: {$path}");
			return null;
		}

		$raw = file_get_contents($path);
		if ($raw === false) {
			$this->log("ERROR: Could not read config file: {$path}");
			return null;
		}

		// Strip // comments (sftp-config.json style)
		$cleaned = preg_replace('#^\s*//.*$#m', '', $raw);
		$config = json_decode($cleaned, true);

		if (!is_array($config)) {
			$this->log('ERROR: Invalid JSON in config file.');
			return null;
		}

		return $config;
	}

	private function rsyncDir(string $localDir, string $remoteTarget, string $host, string $user, int $port, string $sshKey): bool
	{
		$dirName = basename(rtrim($localDir, '/'));
		$sshCmd = "ssh -p {$port}";
		if ($sshKey !== '') {
			$sshCmd .= " -i " . escapeshellarg($sshKey);
		}

		$cmd = $this->buildRsyncCommand($sshCmd, $localDir, "{$user}@{$host}:{$remoteTarget}");

		$this->log("Syncing: {$dirName}");
		if ($this->verbose) {
			$this->log("CMD: {$cmd}");
		}

		$output = [];
		$exitCode = 0;
		exec($cmd, $output, $exitCode);

		if ($exitCode !== 0) {
			$this->log("ERROR: rsync failed for {$dirName} (exit code {$exitCode})");
			foreach ($output as $line) {
				$this->log("  {$line}");
			}
			return false;
		}

		if ($this->verbose) {
			foreach ($output as $line) {
				$this->log("  {$line}");
			}
		}

		return true;
	}

	private function buildRsyncCommand(string $sshCmd, string $source, string $dest, array $extraArgs = []): string
	{
		$parts = ['rsync', '-rlptz', '--delete'];

		foreach (self::EXCLUDES as $exclude) {
			$parts[] = '--exclude=' . $exclude;
		}

		foreach ($extraArgs as $arg) {
			$parts[] = $arg;
		}

		if ($this->dryRun) {
			$parts[] = '--dry-run';
		}

		if ($this->verbose) {
			$parts[] = '-v';
		}

		$parts[] = '-e';
		$parts[] = escapeshellarg($sshCmd);
		$parts[] = escapeshellarg($source);
		$parts[] = escapeshellarg($dest);

		return implode(' ', $parts);
	}

	private function log(string $message): void
	{
		$timestamp = date('Y-m-d H:i:s');
		fwrite(STDERR, "[{$timestamp}] {$message}" . PHP_EOL);
	}
}

$app = new DeployDolibarr();
exit($app->run());