#!/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/client_health_check.php
 * BRIEF: Verify a client site's update server, installed version, and release availability
 */

declare(strict_types=1);

require_once __DIR__ . '/../lib/Enterprise/CliFramework.php';

use MokoEnterprise\CliFramework;

class ClientHealthCheckCli extends CliFramework
{
    protected function configure(): void
    {
        $this->setDescription('Verify a client site\'s update server, installed version, and release availability');
        $this->addArgument('--path', 'Repository root (reads update server URL from manifest)', '.');
        $this->addArgument('--update-url', 'Update server XML URL (overrides manifest)', '');
        $this->addArgument('--site-url', 'Live site URL for version checking via Joomla API', '');
        $this->addArgument('--api-token', 'Joomla API token for site-url', '');
        $this->addArgument('--github-output', 'Export results to $GITHUB_OUTPUT', false);
    }

    protected function run(): int
    {
        $path = $this->getArgument('--path');
        $updateUrl = $this->getArgument('--update-url');
        $siteUrl = $this->getArgument('--site-url');
        $apiToken = $this->getArgument('--api-token');
        $ghOutput = $this->getArgument('--github-output');

        $root = realpath($path) ?: $path;
        $checks = [];

        // -- Resolve update server URL from manifest --
        if ($updateUrl === '') {
            $updateUrl = 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 (preg_match('/<server[^>]*>([^<]+)<\/server>/', $xml, $m)) {
                        $updateUrl = trim($m[1]);
                        break 2;
                    }
                }
            }
        }

        if ($updateUrl === null || $updateUrl === '') {
            $this->log('ERROR', 'No update server URL found. Use --update-url or provide a manifest with <updateservers>.');
            return 1;
        }

        echo "Update server: {$updateUrl}\n\n";

        // -- Check 1: Update server accessible --
        echo "--- Update Server ---\n";
        $ch = curl_init($updateUrl);
        curl_setopt_array($ch, [
            CURLOPT_RETURNTRANSFER => true,
            CURLOPT_TIMEOUT => 15,
            CURLOPT_FOLLOWLOCATION => true,
            CURLOPT_HTTPHEADER => ['User-Agent: MokoHealthCheck/1.0'],
        ]);
        $response = curl_exec($ch);
        $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);

        if ($httpCode === 200 && !empty($response)) {
            echo "  PASS: HTTP {$httpCode}, " . strlen($response) . " bytes\n";
            $checks['update_server'] = 'pass';
        } else {
            echo "  FAIL: HTTP {$httpCode}\n";
            $checks['update_server'] = 'fail';
        }

        // -- Check 2: Parse updates.xml for stable version --
        $stableVersion = null;
        $downloadUrl = null;

        if (!empty($response)) {
            $sections = preg_split('/<update>/', $response);
            foreach ($sections as $section) {
                if (strpos($section, '<tag>stable</tag>') !== false) {
                    if (preg_match('/<version>([^<]+)<\/version>/', $section, $m)) {
                        $stableVersion = $m[1];
                    }
                    if (preg_match('/<downloadurl[^>]*>([^<]+)<\/downloadurl>/', $section, $m)) {
                        $downloadUrl = trim($m[1]);
                    }
                    break;
                }
            }

            if ($stableVersion === null && preg_match('/<version>([^<]+)<\/version>/', $response, $m)) {
                $stableVersion = $m[1];
            }
        }

        echo "\n--- Stable Release ---\n";
        if ($stableVersion !== null) {
            echo "  Version: {$stableVersion}\n";
            $checks['stable_version'] = $stableVersion;
        } else {
            echo "  FAIL: Could not parse stable version\n";
            $checks['stable_version'] = 'fail';
        }

        // -- Check 3: Download URL accessible --
        if ($downloadUrl !== null) {
            echo "\n--- Download URL ---\n";
            $ch = curl_init($downloadUrl);
            curl_setopt_array($ch, [
                CURLOPT_NOBODY => true,
                CURLOPT_TIMEOUT => 15,
                CURLOPT_FOLLOWLOCATION => true,
            ]);
            curl_exec($ch);
            $dlCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            $dlSize = curl_getinfo($ch, CURLINFO_CONTENT_LENGTH_DOWNLOAD);
            curl_close($ch);

            if ($dlCode === 200) {
                $sizeKb = $dlSize > 0 ? round($dlSize / 1024) . 'KB' : 'unknown size';
                echo "  PASS: HTTP {$dlCode}, {$sizeKb}\n";
                $checks['download'] = 'pass';
            } else {
                echo "  FAIL: HTTP {$dlCode}\n";
                $checks['download'] = 'fail';
            }
        }

        // -- Check 4: Site version (optional) --
        if ($siteUrl !== '' && $apiToken !== '') {
            echo "\n--- Site Version ---\n";
            $apiUrl = rtrim($siteUrl, '/') . '/api/index.php/v1/extensions?filter[type]=file';
            $ch = curl_init($apiUrl);
            curl_setopt_array($ch, [
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_TIMEOUT => 15,
                CURLOPT_HTTPHEADER => [
                    "X-Joomla-Token: {$apiToken}",
                    'Accept: application/json',
                ],
            ]);
            $siteResponse = curl_exec($ch);
            $siteCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
            curl_close($ch);

            if ($siteCode === 200) {
                echo "  API accessible (HTTP {$siteCode})\n";
                $checks['site_api'] = 'pass';
            } else {
                echo "  WARN: Site API returned HTTP {$siteCode}\n";
                $checks['site_api'] = 'warn';
            }
        }

        // -- Summary --
        echo "\n=== Health Check Summary ===\n";
        $failed = 0;
        foreach ($checks as $name => $result) {
            $icon = ($result === 'fail') ? 'FAIL' : (($result === 'warn') ? 'WARN' : 'OK');
            if ($result === 'fail') {
                $failed++;
            }
            echo "  {$icon}: {$name} = {$result}\n";
        }

        if ($ghOutput) {
            $ghFile = getenv('GITHUB_OUTPUT');
            if ($ghFile) {
                file_put_contents($ghFile, "health_status=" . ($failed > 0 ? 'fail' : 'pass') . "\n", FILE_APPEND);
                file_put_contents($ghFile, "health_version=" . ($stableVersion ?? 'unknown') . "\n", FILE_APPEND);
                file_put_contents($ghFile, "health_failures={$failed}\n", FILE_APPEND);
            }
        }

        return $failed > 0 ? 1 : 0;
    }
}

$app = new ClientHealthCheckCli();
exit($app->execute());