#!/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: 05.00.01
 * 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).
 *
 * Usage:
 *   php updates_xml_sync.php --path /repo --branches main,dev --current dev
 *   php updates_xml_sync.php --path /repo --branches main --current dev --version 02.01.27
 *
 * Options:
 *   --path         Repository root containing updates.xml (default: .)
 *   --branches     Comma-separated target branches to sync to (default: main,dev)
 *   --current      Current branch to skip (required)
 *   --version      Version string for commit message (optional)
 *   --token        Gitea API token (default: env GA_TOKEN)
 *   --gitea-url    Gitea instance URL (default: env GITEA_URL or https://git.mokoconsulting.tech)
 *   --org          Organization (default: env GITEA_ORG)
 *   --repo         Repository name (default: env GITEA_REPO)
 */

declare(strict_types=1);

// ── Argument parsing ────────────────────────────────────────────────────
$path      = '.';
$branches  = 'main,dev';
$current   = '';
$version   = '';
$token     = getenv('GA_TOKEN') ?: '';
$giteaUrl  = getenv('GITEA_URL') ?: 'https://git.mokoconsulting.tech';
$org       = getenv('GITEA_ORG') ?: '';
$repo      = getenv('GITEA_REPO') ?: '';

foreach ($argv as $i => $arg) {
	if ($arg === '--path'      && isset($argv[$i + 1])) $path     = $argv[$i + 1];
	if ($arg === '--branches'  && isset($argv[$i + 1])) $branches = $argv[$i + 1];
	if ($arg === '--current'   && isset($argv[$i + 1])) $current  = $argv[$i + 1];
	if ($arg === '--version'   && isset($argv[$i + 1])) $version  = $argv[$i + 1];
	if ($arg === '--token'     && isset($argv[$i + 1])) $token    = $argv[$i + 1];
	if ($arg === '--gitea-url' && isset($argv[$i + 1])) $giteaUrl = $argv[$i + 1];
	if ($arg === '--org'       && isset($argv[$i + 1])) $org      = $argv[$i + 1];
	if ($arg === '--repo'      && isset($argv[$i + 1])) $repo     = $argv[$i + 1];
}

if ($current === '') {
	fwrite(STDERR, "Error: --current is required\n");
	exit(1);
}

if ($token === '') {
	fwrite(STDERR, "Error: --token or GA_TOKEN env is required\n");
	exit(1);
}

if ($org === '' || $repo === '') {
	fwrite(STDERR, "Error: --org and --repo (or GITEA_ORG/GITEA_REPO env) are required\n");
	exit(1);
}

$updatesFile = rtrim($path, '/') . '/updates.xml';
if (!file_exists($updatesFile)) {
	fwrite(STDERR, "No updates.xml found at {$updatesFile}\n");
	exit(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($targets)) {
	fwrite(STDERR, "No target branches to sync to (current: {$current})\n");
	exit(0);
}

$synced = 0;
$failed = 0;

foreach ($targets as $branch) {
	fwrite(STDERR, "Syncing updates.xml -> {$branch}...\n");

	$sha = getFileSha($apiBase, $token, $branch);

	if ($sha === null) {
		fwrite(STDERR, "  WARNING: could not get SHA from {$branch}\n");
		$failed++;
		continue;
	}

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

	if ($ok) {
		fwrite(STDERR, "  Synced to {$branch}\n");
		$synced++;
	} else {
		fwrite(STDERR, "  WARNING: push to {$branch} failed\n");
		$failed++;
	}
}

fwrite(STDERR, "Done: {$synced} synced, {$failed} failed\n");
exit($failed > 0 ? 1 : 0);

// ═══════════════════════════════════════════════════════════════════════

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

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

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;
}