#!/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/updates_xml_build.php
 * BRIEF: Generate Joomla updates.xml from extension manifest metadata
 */

declare(strict_types=1);

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

use MokoEnterprise\CliFramework;

class UpdatesXmlBuildCli extends CliFramework
{
    protected function configure(): void
    {
        $this->setDescription('Generate Joomla updates.xml from extension manifest metadata');
        $this->addArgument('--path', 'Repository root (default: .)', '.');
        $this->addArgument('--version', 'Version string (required)', '');
        $this->addArgument('--stability', 'One of: stable, rc, beta, alpha, development (default: stable)', 'stable');
        $this->addArgument('--sha', 'SHA-256 hash of the ZIP package', '');
        $this->addArgument('--gitea-url', 'Gitea instance URL', '');
        $this->addArgument('--org', 'Organization', '');
        $this->addArgument('--repo', 'Repository name', '');
        $this->addArgument('--output', 'Output file path (default: updates.xml in --path)', '');
        $this->addArgument('--github-output', 'Export ext_element, ext_name, ext_type, ext_folder to $GITHUB_OUTPUT', false);
    }

    protected function run(): int
    {
        $path = $this->getArgument('--path');
        $version = $this->getArgument('--version');
        $stability = $this->getArgument('--stability');
        $sha = $this->getArgument('--sha') ?: null;
        $giteaUrl = $this->getArgument('--gitea-url') ?: (getenv('GITEA_URL') ?: 'https://git.mokoconsulting.tech');
        $org = $this->getArgument('--org') ?: (getenv('GITEA_ORG') ?: '');
        $repo = $this->getArgument('--repo') ?: (getenv('GITEA_REPO') ?: '');
        $outputFile = $this->getArgument('--output') ?: null;
        $githubOutput = $this->getArgument('--github-output');

        if ($version === '') {
            $this->log('ERROR', 'Usage: updates_xml_build.php --path . --version XX.YY.ZZ [--stability stable] [--sha SHA]');
            return 1;
        }

        // Strip suffix — stability is applied via --stability parameter
        $version = preg_replace('/-(dev|alpha|beta|rc)$/', '', $version);

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

        // -- Read platform from .mokogitea/manifest.xml --------------------------------
        $detectedPlatform = 'joomla';
        $detectedName = $repo;
        $detectedPackageType = '';
        $detectedDisplayName = '';
        $mokoManifest = "{$root}/.mokogitea/manifest.xml";
        if (file_exists($mokoManifest)) {
            $mokoXml = @simplexml_load_file($mokoManifest);
            if ($mokoXml !== false) {
                $rawPlatform = (string)($mokoXml->governance->platform ?? '');
                if ($rawPlatform !== '') {
                    $detectedPlatform = match ($rawPlatform) {
                        'waas-component' => 'joomla',
                        'crm-module' => 'dolibarr',
                        default => $rawPlatform,
                    };
                }
                $detectedName = (string)($mokoXml->identity->name ?? $repo);
                $detectedDisplayName = (string)($mokoXml->identity->{"display-name"} ?? '');
                $detectedPackageType = (string)($mokoXml->build->{"package-type"} ?? '');

                if (empty($org)) {
                    $manifestOrg = (string)($mokoXml->identity->org ?? '');
                    if ($manifestOrg !== '') {
                        $org = $manifestOrg;
                    }
                }
                if (empty($repo)) {
                    $manifestName = (string)($mokoXml->identity->name ?? '');
                    if ($manifestName !== '') {
                        $repo = $manifestName;
                    }
                }
            }
        }

        // -- Fallback: detect org/repo from git remote --------------------------------
        if (empty($org) || empty($repo)) {
            $remoteUrl = trim(shell_exec("git -C " . escapeshellarg($root) . " remote get-url origin 2>/dev/null") ?? '');
            if (preg_match('#[/:]([^/:]+)/([^/]+?)(?:\.git)?$#', $remoteUrl, $m)) {
                if (empty($org)) {
                    $org = $m[1];
                }
                if (empty($repo)) {
                    $repo = $m[2];
                }
            }
        }

        // -- Locate Joomla manifest ---------------------------------------------------
        $manifest = null;

        $candidates = glob("{$root}/src/pkg_*.xml") ?: [];
        foreach ($candidates as $f) {
            if (strpos(file_get_contents($f), '<extension') !== false) {
                $manifest = $f;
                break;
            }
        }

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

        if ($manifest === null && $detectedPlatform === 'joomla') {
            $this->log('ERROR', "No Joomla XML manifest found in {$root}");
            return 1;
        }

        // -- Parse extension metadata -------------------------------------------------
        $extName = '';
        $extType = '';
        $extElement = '';
        $extClient = '';
        $extFolder = '';
        $targetPlatform = '';
        $phpMinimum = '';

        if ($manifest !== null) {
            $xml = file_get_contents($manifest);

            if (preg_match('/<name>([^<]+)<\/name>/', $xml, $m)) {
                $extName = $m[1];
            }
            if (preg_match('/<extension[^>]*type="([^"]+)"/', $xml, $m)) {
                $extType = $m[1];
            }
            if (preg_match('/<element>([^<]+)<\/element>/', $xml, $m)) {
                $extElement = $m[1];
            }
            if (empty($extElement) && preg_match('/<packagename>([^<]+)<\/packagename>/', $xml, $m)) {
                $extElement = $m[1];
            }
            if (empty($extElement) && preg_match('/plugin="([^"]+)"/', $xml, $m)) {
                $extElement = $m[1];
            }
            if (empty($extElement) && preg_match('/module="([^"]+)"/', $xml, $m)) {
                $extElement = $m[1];
            }
            if (empty($extElement)) {
                $fname = strtolower(pathinfo($manifest, PATHINFO_FILENAME));
                if (in_array($fname, ['templatedetails', 'manifest'])) {
                    $extElement = strtolower(str_replace([' ', '-'], '', $repo ?: basename($root)));
                } else {
                    $extElement = $fname;
                }
            }
            $extElement = preg_replace('/^(pkg_|com_|mod_|plg_\w+_|tpl_|lib_)/', '', $extElement);

            if (preg_match('/<extension[^>]*client="([^"]+)"/', $xml, $m)) {
                $extClient = $m[1];
            }
            if (preg_match('/<extension[^>]*group="([^"]+)"/', $xml, $m)) {
                $extFolder = $m[1];
            }
            if (preg_match('/(<targetplatform[^\/]*\/>)/', $xml, $m)) {
                $targetPlatform = $m[1];
            }
            if (empty($targetPlatform)) {
                $targetPlatform = '<targetplatform name="joomla" version="(5|6)\..*" />';
            }
            if (preg_match('/<php_minimum>([^<]+)<\/php_minimum>/', $xml, $m)) {
                $phpMinimum = $m[1];
            }
        } else {
            $extName = $detectedName ?: ($repo ?: basename($root));
            $extElement = strtolower(str_replace([' ', '-'], '', $extName));
            $extType = $detectedPackageType ?: 'generic';
            $targetPlatform = "<targetplatform name=\"{$detectedPlatform}\" version=\".*\" />";
        }

        if (empty($extName)) {
            $extName = $repo ?: basename($root);
        }
        if (empty($extType)) {
            $extType = 'component';
        }

        if (!empty($detectedDisplayName)) {
            $displayName = $detectedDisplayName;
        } elseif (!empty($detectedName)) {
            $displayName = $detectedName;
        } else {
            $displayName = $extName;
        }

        // -- Build type prefix --------------------------------------------------------
        $typePrefix = '';
        switch ($extType) {
            case 'plugin':
                $typePrefix = "plg_{$extFolder}_";
                break;
            case 'module':
                $typePrefix = 'mod_';
                break;
            case 'component':
                $typePrefix = 'com_';
                break;
            case 'template':
                $typePrefix = 'tpl_';
                break;
            case 'library':
                $typePrefix = 'lib_';
                break;
            case 'package':
                $typePrefix = 'pkg_';
                break;
        }

        // -- Export to GITHUB_OUTPUT if requested -------------------------------------
        if ($githubOutput) {
            $ghOutput = getenv('GITHUB_OUTPUT');
            $lines = [
                "ext_element={$extElement}",
                "ext_name={$extName}",
                "ext_type={$extType}",
                "ext_folder={$extFolder}",
                "type_prefix={$typePrefix}",
            ];
            if ($ghOutput) {
                file_put_contents($ghOutput, implode("\n", $lines) . "\n", FILE_APPEND);
                $this->log('INFO', "Exported " . count($lines) . " fields to GITHUB_OUTPUT");
            } else {
                foreach ($lines as $line) {
                    echo "{$line}\n";
                }
            }
        }

        // -- Stability suffix map -----------------------------------------------------
        $stabilitySuffixMap = [
            'stable'      => '',
            'rc'          => '-rc',
            'beta'        => '-beta',
            'alpha'       => '-alpha',
            'development' => '-dev',
            'dev'         => '-dev',
        ];

        $stabilityTagMap = [
            'stable'      => 'stable',
            'rc'          => 'rc',
            'beta'        => 'beta',
            'alpha'       => 'alpha',
            'development' => 'dev',
            'dev'         => 'dev',
        ];

        $releaseTagMap = [
            'stable'      => 'stable',
            'rc'          => 'release-candidate',
            'beta'        => 'beta',
            'alpha'       => 'alpha',
            'development' => 'development',
            'dev'         => 'development',
        ];

        $primarySuffix = $stabilitySuffixMap[$stability] ?? '';
        $primaryVersion = $version . $primarySuffix;

        $clientTag = '';
        if (!empty($extClient)) {
            $clientTag = "    <client>{$extClient}</client>";
        } else {
            $clientTag = '    <client>site</client>';
        }

        $folderTag = '';
        if (!empty($extFolder) && $extType === 'plugin') {
            $folderTag = "    <folder>{$extFolder}</folder>";
        }

        $phpTag = '';
        if (!empty($phpMinimum)) {
            $phpTag = "    <php_minimum>{$phpMinimum}</php_minimum>";
        }

        $shaTag = '';
        if (!empty($sha)) {
            $shaTag = "    <sha256>{$sha}</sha256>";
        }

        // -- Write ONLY the single channel being released --------------------------------
        $entries = [];
        $giteaTag = $releaseTagMap[$stability] ?? $stability;
        $channelVersion = $version . ($stabilitySuffixMap[$stability] ?? '');
        $channelDownloadUrl = "{$giteaUrl}/{$org}/{$repo}/releases/download/{$giteaTag}/{$typePrefix}{$extElement}-{$channelVersion}.zip";
        $channelInfoUrl = "{$giteaUrl}/{$org}/{$repo}/releases/tag/{$giteaTag}";
        $joomlaTag = $stabilityTagMap[$stability] ?? $stability;
        $changelogUrl = "{$giteaUrl}/{$org}/{$repo}/raw/branch/main/CHANGELOG.md";

        $entries[] = $this->buildEntry(
            $joomlaTag,
            $channelVersion,
            $channelDownloadUrl,
            $displayName,
            $stability,
            $extElement,
            $extType,
            $clientTag,
            $folderTag,
            $channelInfoUrl,
            $targetPlatform,
            $phpTag,
            $shaTag,
            $changelogUrl
        );

        // -- Preserve existing entries for channels not being updated -----------------
        $dest = $outputFile ?? "{$root}/updates.xml";
        $preservedEntries = [];

        if (file_exists($dest)) {
            $existingXml = @simplexml_load_file($dest);
            if ($existingXml) {
                $writtenTag = $joomlaTag;
                $writtenAliases = [$writtenTag];
                if ($writtenTag === 'dev') {
                    $writtenAliases[] = 'development';
                }
                if ($writtenTag === 'development') {
                    $writtenAliases[] = 'dev';
                }

                foreach ($existingXml->update as $existingUpdate) {
                    $existingTag = '';
                    if (isset($existingUpdate->tags->tag)) {
                        $existingTag = (string) $existingUpdate->tags->tag;
                    }
                    if (!empty($existingTag) && !in_array($existingTag, $writtenAliases, true)) {
                        $preservedEntries[] = '  ' . trim($existingUpdate->asXML());
                    }
                }
            }
        }

        // -- Write updates.xml --------------------------------------------------------
        $year = date('Y');
        $output = <<<XML
<?xml version='1.0' encoding='UTF-8'?>
<!-- Copyright (C) {$year} Moko Consulting <hello@mokoconsulting.tech>
 SPDX-License-Identifier: GPL-3.0-or-later
 VERSION: {$primaryVersion}
 -->

<updates>
XML;
        $allEntries = array_merge($preservedEntries, $entries);

        $stabilityOrder = ['dev' => 0, 'development' => 0, 'alpha' => 1, 'beta' => 2, 'rc' => 3, 'stable' => 4];
        usort($allEntries, function ($a, $b) use ($stabilityOrder) {
            preg_match('/<tag>([^<]+)<\/tag>/', $a, $ma);
            preg_match('/<tag>([^<]+)<\/tag>/', $b, $mb);
            return ($stabilityOrder[$ma[1] ?? ''] ?? 99) - ($stabilityOrder[$mb[1] ?? ''] ?? 99);
        });

        $output .= "\n" . implode("\n", $allEntries) . "\n</updates>\n";

        $dest = $outputFile ?? "{$root}/updates.xml";
        file_put_contents($dest, $output);

        $channelCount = count($entries);
        echo "updates.xml: {$primaryVersion} ({$channelCount} channel(s), stability={$stability})\n";
        echo "Output: {$dest}\n";
        return 0;
    }

    private function buildEntry(
        string $tagName,
        string $entryVersion,
        string $entryDownloadUrl,
        string $displayName,
        string $stabilityLabel,
        string $extElement,
        string $extType,
        string $clientTag,
        string $folderTag,
        string $infoUrl,
        string $targetPlatform,
        string $phpTag,
        string $shaTag,
        string $changelogUrl = ''
    ): string {
        $lines = [];
        $lines[] = '  <update>';
        $lines[] = "    <name>{$displayName}</name>";
        $lines[] = "    <description>{$displayName} {$stabilityLabel} build.</description>";
        $prefixMap = [
            'package'   => 'pkg_',
            'module'    => 'mod_',
            'component' => 'com_',
            'library'   => 'lib_',
        ];
        $dbElement = isset($prefixMap[$extType]) ? $prefixMap[$extType] . $extElement : $extElement;
        $lines[] = "    <element>{$dbElement}</element>";
        $lines[] = "    <type>{$extType}</type>";
        $lines[] = $clientTag;
        $lines[] = "    <version>{$entryVersion}</version>";
        $lines[] = "    <creationDate>" . date('Y-m-d') . "</creationDate>";
        if (!empty($folderTag)) {
            $lines[] = $folderTag;
        }
        $lines[] = "    <infourl title='{$displayName}'>{$infoUrl}</infourl>";
        $lines[] = '    <downloads>';
        $lines[] = "      <downloadurl type='full' format='zip'>{$entryDownloadUrl}</downloadurl>";
        $lines[] = '    </downloads>';
        if (!empty($shaTag)) {
            $lines[] = $shaTag;
        }
        $lines[] = "    <tags><tag>{$tagName}</tag></tags>";
        if (!empty($changelogUrl)) {
            $lines[] = "    <changelogurl>{$changelogUrl}</changelogurl>";
        }
        $lines[] = '    <maintainer>Moko Consulting</maintainer>';
        $lines[] = '    <maintainerurl>https://mokoconsulting.tech</maintainerurl>';
        $lines[] = "    {$targetPlatform}";
        if (!empty($phpTag)) {
            $lines[] = $phpTag;
        }
        $lines[] = '  </update>';
        return implode("\n", $lines);
    }
}

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