#!/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/manifest_read.php
 * VERSION: 04.09.00
 * BRIEF: Parse .manifest.xml and output requested field(s) for CI consumption
 *
 * Usage:
 *   php manifest_read.php --path /repo --field platform
 *   php manifest_read.php --path /repo --field entry-point
 *   php manifest_read.php --path /repo --all
 *   php manifest_read.php --path /repo --github-output
 *
 * Fields: name, org, description, license, license-spdx, platform,
 *         standards-version, standards-source, language, package-type, entry-point,
 *         source-dir, remote-subdir, excludes, dev-host, demo-host
 *
 * --all             Print all fields as KEY=VALUE lines
 * --github-output   Append all fields to $GITHUB_OUTPUT (for Gitea/GitHub Actions)
 * --json            Output all fields as JSON
 * --field <name>    Print a single field value (no key, just value)
 */

declare(strict_types=1);

// -- Argument parsing ---------------------------------------------------------
$path  = '.';
$field = null;
$mode  = 'field';  // field | all | github-output | json

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

// -- Locate manifest ----------------------------------------------------------
$root = realpath($path) ?: $path;
$manifestFile = null;

// Priority: manifest.xml (current standard)
$candidates = [
    "{$root}/.mokogitea/manifest.xml",
    "{$root}/.mokogitea/.manifest.xml",    // legacy (dot-prefixed)
    "{$root}/.mokogitea/.moko-platform",  // legacy v4
];

foreach ($candidates as $candidate) {
    if (file_exists($candidate)) {
        $manifestFile = $candidate;
        break;
    }
}

if ($manifestFile === null) {
    fwrite(STDERR, "No manifest found in {$root}
");
    exit(1);
}

// -- Parse XML ----------------------------------------------------------------
$xml = @simplexml_load_file($manifestFile);

if ($xml === false) {
    // Fallback: try YAML format (.mokostandards legacy)
    $content = file_get_contents($manifestFile);
    $fields = [];
    if (preg_match('/^platform:\s*(.+)/m', $content, $m)) {
        $fields['platform'] = trim($m[1], " 	

\"'");
    }
    if (preg_match('/^standards_version:\s*(.+)/m', $content, $m)) {
        $fields['standards-version'] = trim($m[1], " 	

\"'");
    }
    if (preg_match('/^governed_repo:\s*(.+)/m', $content, $m)) {
        $fields['name'] = trim($m[1], " 	

\"'");
    }
} else {
    // Register namespace for XPath (optional, simple path works without)
    $fields = [
        'name'              => (string)($xml->identity->name ?? ''),
        'org'               => (string)($xml->identity->org ?? ''),
        'description'       => (string)($xml->identity->description ?? ''),
        'license'           => (string)($xml->identity->license ?? ''),
        'license-spdx'      => (string)($xml->identity->license['spdx'] ?? ''),
        'platform'          => (string)($xml->governance->platform ?? ''),
        'standards-version' => (string)($xml->governance->{"standards-version"} ?? ''),
        'standards-source'  => (string)($xml->governance->{"standards-source"} ?? ''),
        'language'          => (string)($xml->build->language ?? ''),
        'package-type'      => (string)($xml->build->{"package-type"} ?? ''),
        'entry-point'       => (string)($xml->build->{"entry-point"} ?? ''),
        'version'           => (string)($xml->identity->version ?? ''),
        'source-dir'        => (string)($xml->deploy->{"source-dir"} ?? ''),
        'remote-subdir'     => (string)($xml->deploy->{"remote-subdir"} ?? ''),
        'excludes'          => (string)($xml->deploy->excludes ?? ''),
        'dev-host'          => (string)($xml->deploy->{"dev-host"} ?? ''),
        'demo-host'         => (string)($xml->deploy->{"demo-host"} ?? ''),
        'manifest-file'     => $manifestFile,
    ];
}

// Strip empty values for cleaner output
$fields = array_filter($fields, fn($v) => $v !== '');

// -- Output -------------------------------------------------------------------
switch ($mode) {
    case 'field':
        if ($field === null) {
            fwrite(STDERR, "Usage: manifest_read.php --path <dir> --field <name>
");
            fwrite(STDERR, "       manifest_read.php --path <dir> --all
");
            fwrite(STDERR, "       manifest_read.php --path <dir> --json
");
            fwrite(STDERR, "       manifest_read.php --path <dir> --github-output
");
            exit(2);
        }
        echo ($fields[$field] ?? '') . "
";
        break;

    case 'all':
        foreach ($fields as $k => $v) {
            echo "{$k}={$v}
";
        }
        break;

    case 'json':
        echo json_encode($fields, JSON_PRETTY_PRINT | JSON_UNESCAPED_SLASHES) . "
";
        break;

    case 'github-output':
        $outputFile = getenv('GITHUB_OUTPUT');
        if ($outputFile === false || $outputFile === '') {
            fwrite(STDERR, "GITHUB_OUTPUT not set — printing to stdout instead
");
            foreach ($fields as $k => $v) {
                // Convert field-name to FIELD_NAME for env var style
                $envKey = str_replace('-', '_', $k);
                echo "{$envKey}={$v}
";
            }
        } else {
            $fh = fopen($outputFile, 'a');
            foreach ($fields as $k => $v) {
                $envKey = str_replace('-', '_', $k);
                fwrite($fh, "{$envKey}={$v}
");
            }
            fclose($fh);
            fwrite(STDERR, "Wrote " . count($fields) . " fields to GITHUB_OUTPUT
");
        }
        break;
}

exit(0);