#!/usr/bin/env php
<?php
/* Copyright (C) 2026 Moko Consulting <hello@mokoconsulting.tech>
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 *
 * FILE INFORMATION
 * DEFGROUP: moko-platform.CLI
 * INGROUP: moko-platform
 * REPO: https://git.mokoconsulting.tech/MokoConsulting/moko-platform
 * PATH: /cli/joomla_compat_check.php
 * BRIEF: Check if extension targetplatform regex matches the latest Joomla version
 *
 * Usage:
 *   php joomla_compat_check.php --path /repo
 *   php joomla_compat_check.php --path /repo --github-output
 *
 * Options:
 *   --path           Repository root (default: .)
 *   --github-output  Export results to $GITHUB_OUTPUT
 */

declare(strict_types=1);

$path = '.';
$ghOutput = false;

foreach ($argv as $i => $arg) {
	if ($arg === '--path' && isset($argv[$i + 1])) $path = $argv[$i + 1];
	if ($arg === '--github-output') $ghOutput = true;
}

$root = realpath($path) ?: $path;

// ── Find manifest and extract targetplatform ────────────────────────────
$manifest = null;
$searchDirs = ["{$root}/src", $root];
foreach ($searchDirs as $dir) {
	if (!is_dir($dir)) continue;
	foreach (glob("{$dir}/*.xml") ?: [] as $f) {
		$xml = file_get_contents($f);
		if (strpos($xml, '<extension') !== false && strpos($xml, 'targetplatform') !== false) {
			$manifest = $f;
			break 2;
		}
	}
}

if ($manifest === null) {
	fwrite(STDERR, "No manifest with targetplatform found\n");
	exit(1);
}

$xml = file_get_contents($manifest);
$relManifest = str_replace($root . '/', '', $manifest);

// Extract targetplatform version regex
$targetRegex = '';
if (preg_match('/targetplatform[^>]*version="([^"]+)"/', $xml, $m)) {
	$targetRegex = $m[1];
}

if (empty($targetRegex)) {
	echo "No targetplatform version found in {$relManifest}\n";
	exit(1);
}

echo "Manifest:        {$relManifest}\n";
echo "Target regex:    {$targetRegex}\n";

// ── Fetch latest Joomla version ─────────────────────────────────────────
$joomlaVersions = [];
$updateUrl = 'https://update.joomla.org/core/sts/list_sts.xml';
$updateXml = @file_get_contents($updateUrl);

if ($updateXml === false) {
	// Fallback: try the LTS feed
	$updateUrl = 'https://update.joomla.org/core/list.xml';
	$updateXml = @file_get_contents($updateUrl);
}

if ($updateXml !== false) {
	// Parse all version entries
	preg_match_all('/<version>([^<]+)<\/version>/', $updateXml, $matches);
	$joomlaVersions = $matches[1] ?? [];
}

if (empty($joomlaVersions)) {
	echo "WARNING: Could not fetch Joomla versions from update server\n";
	echo "Tested URL: {$updateUrl}\n";
	exit(0);
}

// Sort and get latest
usort($joomlaVersions, 'version_compare');
$latestJoomla = end($joomlaVersions);

echo "Latest Joomla:   {$latestJoomla}\n";

// ── Test compatibility ──────────────────────────────────────────────────
// The targetplatform regex uses Joomla's regex format
// Common patterns: "5\.[0-9]+" or "((5.[0-9])|(6.[0-9]))"
$compatible = @preg_match("/{$targetRegex}/", $latestJoomla);

if ($compatible === false) {
	echo "ERROR: Invalid regex in targetplatform: {$targetRegex}\n";
	$result = 'error';
} elseif ($compatible === 1) {
	echo "PASS: Joomla {$latestJoomla} matches targetplatform regex\n";
	$result = 'pass';
} else {
	// Check which major versions are supported
	$supported = [];
	foreach (['5.0', '5.1', '5.2', '5.3', '5.4', '6.0', '6.1', '6.2', '7.0'] as $v) {
		if (@preg_match("/{$targetRegex}/", $v)) {
			$supported[] = $v;
		}
	}

	echo "WARN: Joomla {$latestJoomla} does NOT match targetplatform regex\n";
	echo "Supported versions: " . implode(', ', $supported) . "\n";
	echo "Consider updating targetplatform to include Joomla {$latestJoomla}\n";
	$result = 'warn';
}

// ── Export ───────────────────────────────────────────────────────────────
if ($ghOutput) {
	$ghFile = getenv('GITHUB_OUTPUT');
	if ($ghFile) {
		file_put_contents($ghFile, "compat_result={$result}\n", FILE_APPEND);
		file_put_contents($ghFile, "compat_joomla={$latestJoomla}\n", FILE_APPEND);
		file_put_contents($ghFile, "compat_regex={$targetRegex}\n", FILE_APPEND);
	}
}

exit($result === 'error' ? 1 : 0);