#!/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/version_read.php
 * BRIEF: Read version — manifest.xml is canonical, falls back to README.md and Joomla XML
 */

declare(strict_types=1);

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

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

// -- 1. Read from .mokogitea/manifest.xml (canonical source) --
$mokoVersion = null;
$mokoManifest = "{$root}/.mokogitea/manifest.xml";
if (file_exists($mokoManifest)) {
    $xml = @simplexml_load_file($mokoManifest);
    if ($xml !== false) {
        $v = (string)($xml->identity->version ?? '');
        if (preg_match('/^\d{2}\.\d{2}\.\d{2}$/', $v)) {
            $mokoVersion = $v;
        }
    }
}

// If manifest.xml has a version, that is authoritative
if ($mokoVersion !== null) {
    echo $mokoVersion . "\n";
    exit(0);
}

// -- 2. Fallback: README.md --
$readmeVersion = null;
$readme = "{$root}/README.md";
if (file_exists($readme)) {
    $content = file_get_contents($readme);
    if (preg_match('/VERSION:\s*(\d{2}\.\d{2}\.\d{2})/m', $content, $m)) {
        $readmeVersion = $m[1];
    }
}

// -- 3. Fallback: Joomla manifest XML --
$manifestVersion = null;
$manifestFiles = array_merge(
    glob("{$root}/src/pkg_*.xml") ?: [],
    glob("{$root}/src/*.xml") ?: [],
    glob("{$root}/src/packages/*/*.xml") ?: [],
    glob("{$root}/*.xml") ?: []
);

foreach ($manifestFiles as $xmlFile) {
    $xmlContent = file_get_contents($xmlFile);
    if (strpos($xmlContent, '<extension') === false && strpos($xmlContent, '<version>') === false) {
        continue;
    }
    if (preg_match('|<version>(\d{2}\.\d{2}\.\d{2})(?:-[a-z]+)?</version>|', $xmlContent, $xm)) {
        $candidate = $xm[1];
        if ($manifestVersion === null || version_compare($candidate, $manifestVersion, '>')) {
            $manifestVersion = $candidate;
        }
    }
}

// -- Output the higher version --
$version = null;
if ($readmeVersion !== null && $manifestVersion !== null) {
    $version = version_compare($manifestVersion, $readmeVersion, '>') ? $manifestVersion : $readmeVersion;
} elseif ($manifestVersion !== null) {
    $version = $manifestVersion;
} elseif ($readmeVersion !== null) {
    $version = $readmeVersion;
}

if ($version === null) {
    fwrite(STDERR, "No version found in manifest.xml, README.md, or Joomla XML\n");
    exit(1);
}

// -- Backfill: if manifest.xml exists but lacks <version>, insert it --
if ($mokoVersion === null && file_exists($mokoManifest)) {
    $content = file_get_contents($mokoManifest);
    if (!preg_match('|<version>\d{2}\.\d{2}\.\d{2}</version>|', $content)) {
        if (strpos($content, '<license') !== false) {
            $content = preg_replace(
                '|(\s*<license)|',
                "\n    <version>{$version}</version>\$1",
                $content,
                1
            );
        } elseif (strpos($content, '</identity>') !== false) {
            $content = preg_replace(
                '|(</identity>)|',
                "    <version>{$version}</version>\n  \$1",
                $content,
                1
            );
        }
        file_put_contents($mokoManifest, $content);
        fwrite(STDERR, "Backfilled manifest.xml with version {$version}\n");
    }
}

echo $version . "\n";
exit(0);