#!/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_sync.php
 * VERSION: 09.21.07
 * BRIEF: Sync updates.xml to target branches via Gitea API
 * NOTE: Called by pre-release and auto-release workflows after updates.xml
 *       is modified on the current branch. Pushes the file to other branches
 *       without requiring a git checkout (avoids merge conflicts).
 */

declare(strict_types=1);

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

use MokoEnterprise\CliFramework;

class UpdatesXmlSyncCli extends CliFramework
{
    protected function configure(): void
    {
        $this->setDescription('Sync updates.xml to target branches via Gitea API');
        $this->addArgument('--path', 'Repository root containing updates.xml', '.');
        $this->addArgument('--branches', 'Comma-separated target branches to sync to', 'main,dev');
        $this->addArgument('--all', 'Auto-discover all branches via Gitea API', false);
        $this->addArgument('--current', 'Current branch to skip (required)', '');
        $this->addArgument('--version', 'Version string for commit message', '');
        $this->addArgument('--token', 'Gitea API token', '');
        $this->addArgument('--gitea-url', 'Gitea instance URL', '');
        $this->addArgument('--org', 'Organization', '');
        $this->addArgument('--repo', 'Repository name', '');
    }

    protected function run(): int
    {
        $path = $this->getArgument('--path');
        $branches = $this->getArgument('--branches');
        $discoverAll = $this->getArgument('--all');
        $current = $this->getArgument('--current');
        $version = $this->getArgument('--version');
        $token = $this->getArgument('--token');
        $giteaUrl = $this->getArgument('--gitea-url');
        $org = $this->getArgument('--org');
        $repo = $this->getArgument('--repo');

        // Fall back to environment variables
        if ($token === '') {
            $token = getenv('MOKOGITEA_TOKEN') ?: '';
        }
        if ($giteaUrl === '') {
            $giteaUrl = getenv('GITEA_URL') ?: 'https://git.mokoconsulting.tech';
        }
        if ($org === '') {
            $org = getenv('GITEA_ORG') ?: '';
        }
        if ($repo === '') {
            $repo = getenv('GITEA_REPO') ?: '';
        }

        if ($current === '') {
            $this->log('ERROR', '--current is required');
            return 1;
        }

        if ($token === '') {
            $this->log('ERROR', '--token or MOKOGITEA_TOKEN env is required');
            return 1;
        }

        if ($org === '' || $repo === '') {
            $this->log('ERROR', '--org and --repo (or GITEA_ORG/GITEA_REPO env) are required');
            return 1;
        }

        // Auto-discover branches if --all flag is set
        if ($discoverAll) {
            $apiUrl = "{$giteaUrl}/api/v1/repos/{$org}/{$repo}/branches?limit=50";
            $ch = curl_init($apiUrl);
            curl_setopt_array($ch, [
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_HTTPHEADER => ["Authorization: token {$token}", 'Accept: application/json'],
                CURLOPT_TIMEOUT => 15,
            ]);
            $response = curl_exec($ch);
            curl_close($ch);
            $branchList = json_decode($response ?: '[]', true) ?: [];
            $discovered = [];
            foreach ($branchList as $b) {
                $name = $b['name'] ?? '';
                if ($name !== '' && $name !== $current
                    && !str_starts_with($name, 'version/')
                    && !str_starts_with($name, 'feature/')
                    && !str_starts_with($name, 'patch/')
                ) {
                    $discovered[] = $name;
                }
            }
            if (!empty($discovered)) {
                $branches = implode(',', $discovered);
                echo "Discovered branches: {$branches}\n";
            }
        }

        $updatesFile = rtrim($path, '/') . '/updates.xml';
        if (!file_exists($updatesFile)) {
            $this->log('ERROR', "No updates.xml found at {$updatesFile}");
            return 0;
        }

        $content  = file_get_contents($updatesFile);
        $encoded  = base64_encode($content);
        $giteaUrl = rtrim($giteaUrl, '/');
        $apiBase  = "{$giteaUrl}/api/v1/repos/{$org}/{$repo}";
        $vLabel   = $version !== '' ? " {$version}" : '';

        $targets = array_filter(
            array_map('trim', explode(',', $branches)),
            fn($b) => $b !== '' && $b !== $current
        );

        if (empty($targets)) {
            $this->log('ERROR', "No target branches to sync to (current: {$current})");
            return 0;
        }

        $synced = 0;
        $failed = 0;

        foreach ($targets as $branch) {
            $this->log('INFO', "Syncing updates.xml -> {$branch}...");

            $sha = $this->getFileSha($apiBase, $token, $branch);

            if ($sha === null) {
                $this->warning("could not get SHA from {$branch}");
                $failed++;
                continue;
            }

            $ok = $this->putFile($apiBase, $token, $branch, $encoded, $sha,
                "chore: sync updates.xml{$vLabel} from {$current} [skip ci]");

            if ($ok) {
                $this->log('INFO', "Synced to {$branch}");
                $synced++;
            } else {
                $this->warning("push to {$branch} failed");
                $failed++;
            }
        }

        $this->log('INFO', "Done: {$synced} synced, {$failed} failed");
        return $failed > 0 ? 1 : 0;
    }

    private function getFileSha(string $apiBase, string $token, string $branch): ?string
    {
        $resp = $this->apiCall('GET', "{$apiBase}/contents/updates.xml?ref={$branch}", $token);
        return $resp['sha'] ?? null;
    }

    private function putFile(string $apiBase, string $token, string $branch,
        string $encoded, string $sha, string $msg): bool
    {
        $resp = $this->apiCall('PUT', "{$apiBase}/contents/updates.xml", $token, [
            'content' => $encoded,
            'sha'     => $sha,
            'message' => $msg,
            'branch'  => $branch,
        ]);
        return $resp !== null;
    }

    private function apiCall(string $method, string $url, string $token, ?array $data = null): ?array
    {
        $headers = [
            "Authorization: token {$token}",
            'Content-Type: application/json',
            'Accept: application/json',
        ];

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, $method);
        curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);
        curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);

        if ($data !== null) {
            curl_setopt($ch, CURLOPT_POSTFIELDS,
                json_encode($data, JSON_UNESCAPED_SLASHES));
        }

        $body = curl_exec($ch);
        $code = (int) curl_getinfo($ch, CURLINFO_HTTP_CODE);
        curl_close($ch);

        return ($code >= 200 && $code < 300)
            ? (json_decode($body, true) ?: [])
            : null;
    }
}

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