#!/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.CLI
 * INGROUP: MokoStandards
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
 * PATH: /cli/sync_rulesets.php
 * BRIEF: Apply branch protection rules to all repos via platform adapter
 *
 * USAGE
 *   php cli/sync_rulesets.php                         # Apply to all repos
 *   php cli/sync_rulesets.php --repo MokoCRM          # Single repo
 *   php cli/sync_rulesets.php --dry-run               # Preview only
 *   php cli/sync_rulesets.php --delete                # Remove then re-apply
 *
 * NOTE: On GitHub, this creates rulesets via the rulesets API.
 *       On Gitea, this creates branch_protections via the branch protection API.
 */

declare(strict_types=1);

require_once __DIR__ . '/../vendor/autoload.php';

use MokoEnterprise\Config;
use MokoEnterprise\PlatformAdapterFactory;

$dryRun    = in_array('--dry-run', $argv);
$deleteOld = in_array('--delete', $argv);

$repoName = null;

foreach ($argv as $i => $arg) {
	if ($arg === '--repo' && isset($argv[$i + 1])) { $repoName = $argv[$i + 1]; }
}

$config  = Config::load();
$adapter = PlatformAdapterFactory::create($config);
$org     = $config->getString(
	$adapter->getPlatformName() . '.organization',
	'mokoconsulting-tech'
);

$platformName  = $adapter->getPlatformName();
$ALWAYS_EXCLUDE = ['MokoStandards', '.github-private'];

// ── Protection rules (platform-agnostic format) ─────────────────────────
// On GitHub → rulesets API. On Gitea → branch_protections API.
$PROTECTIONS = [
	[
		'name'   => 'MAIN — protect default branch',
		'branch' => 'main',
		'rules'  => [
			'required_reviews'  => 1,
			'dismiss_stale'     => true,
			'enforce_admins'    => true,
			'block_on_rejected' => true,
		],
	],
	[
		'name'   => 'VERSION — immutable snapshots',
		'branch' => 'version/*',
		'rules'  => [
			'required_reviews' => 0,
			'enforce_admins'   => true,
		],
	],
	[
		'name'   => 'DEV — prevent branch deletion',
		'branch' => 'dev/*',
		'rules'  => [
			'required_reviews' => 0,
			'enforce_admins'   => true,
		],
	],
	[
		'name'   => 'RC — prevent branch deletion',
		'branch' => 'rc/*',
		'rules'  => [
			'required_reviews' => 0,
			'enforce_admins'   => true,
		],
	],
];

// ── Build repo list ─────────────────────────────────────────────────────
$repos = [];
if ($repoName) {
	$repos = [$repoName];
} else {
	echo "Fetching repositories from {$org} ({$platformName})...\n";
	$allRepos = $adapter->listOrgRepos($org, true); // skip archived
	foreach ($allRepos as $r) {
		if (!in_array($r['name'], $ALWAYS_EXCLUDE, true)) {
			$repos[] = $r['name'];
		}
	}
	sort($repos);
	echo "Found " . count($repos) . " repositories\n\n";
}

$created = 0;
$skipped = 0;
$failed  = 0;

foreach ($repos as $repo) {
	echo "Processing {$repo}...\n";

	// Check existing protections
	$existing = $adapter->listBranchProtections($org, $repo);
	$existingNames = [];
	if (is_array($existing)) {
		foreach ($existing as $bp) {
			$bpName = $bp['name'] ?? $bp['branch_name'] ?? $bp['rule_name'] ?? '';
			$bpId   = $bp['id'] ?? null;
			if ($bpName !== '') {
				$existingNames[$bpName] = $bpId;
			}
		}
	}

	foreach ($PROTECTIONS as $protection) {
		$pName = $protection['name'];

		if ($deleteOld && isset($existingNames[$pName])) {
			if (!$dryRun) {
				try {
					// Platform-specific deletion via raw API
					$adapter->getApiClient()->delete(
						"/repos/{$org}/{$repo}/" .
						($platformName === 'github' ? 'rulesets' : 'branch_protections') .
						"/{$existingNames[$pName]}"
					);
				} catch (\Exception $e) { /* ignore delete errors */ }
			}
			echo "  Deleted: {$pName}\n";
			unset($existingNames[$pName]);
		}

		if (isset($existingNames[$pName])) {
			echo "  Exists: {$pName}\n";
			$skipped++;
			continue;
		}

		if ($dryRun) {
			echo "  (dry-run) would create: {$pName}\n";
			$created++;
			continue;
		}

		try {
			$adapter->setBranchProtection($org, $repo, $protection['branch'], $protection['rules']);
			echo "  Created: {$pName}\n";
			$created++;
		} catch (\Exception $e) {
			$msg = $e->getMessage();
			if (str_contains($msg, '403')) {
				echo "  Skipped (needs Pro/paid plan): {$pName}\n";
				$skipped++;
			} else {
				echo "  Failed: {$pName} — {$msg}\n";
				$failed++;
			}
		}
	}
	echo "\n";
}

echo str_repeat('-', 50) . "\n";
echo "Done: {$created} created, {$skipped} skipped, {$failed} failed\n";
exit($failed > 0 ? 1 : 0);