<?php

namespace App\Http\Controllers;

use App\Models\Setting;
use Illuminate\Http\JsonResponse;
use Illuminate\Support\Facades\Http;

class VersionCheckController extends Controller
{
    public function __invoke(): JsonResponse
    {
        $current = Setting::query()->where('key', 'version')->value('value');
        $build = Setting::query()->where('key', 'build')->value('value');

        $owner = env('GITEA_OWNER');
        $repo = env('GITEA_REPO');
        $apiBase = rtrim((string) env('GITEA_API_BASE', 'https://git.24unix.net/api/v1'), '/');
        $token = env('GITEA_TOKEN');

        if (!$owner || !$repo) {
            return response()->json([
                'current_version' => $current,
                'current_build' => $build !== null ? (int) $build : null,
                'latest_tag' => null,
                'latest_version' => null,
                'is_latest' => null,
                'error' => 'Missing GITEA_OWNER/GITEA_REPO configuration.',
            ]);
        }

        try {
            $client = Http::acceptJson();
            if ($token) {
                $client = $client->withHeaders(['Authorization' => "token {$token}"]);
            }

            $response = $client->get("{$apiBase}/repos/{$owner}/{$repo}/releases/latest");
            if (!$response->successful()) {
                return response()->json([
                    'current_version' => $current,
                    'current_build' => $build !== null ? (int) $build : null,
                    'latest_tag' => null,
                    'latest_version' => null,
                    'is_latest' => null,
                    'error' => "Release check failed: {$response->status()}",
                ]);
            }

            $tag = (string) ($response->json('tag_name') ?? '');
            $latestVersion = ltrim($tag, 'v');
            $isLatest = $current && $latestVersion ? $current === $latestVersion : null;

            return response()->json([
                'current_version' => $current,
                'current_build' => $build !== null ? (int) $build : null,
                'latest_tag' => $tag ?: null,
                'latest_version' => $latestVersion ?: null,
                'is_latest' => $isLatest,
            ]);
        } catch (\Throwable $e) {
            return response()->json([
                'current_version' => $current,
                'current_build' => $build !== null ? (int) $build : null,
                'latest_tag' => null,
                'latest_version' => null,
                'is_latest' => null,
                'error' => 'Version check failed.',
            ]);
        }
    }
}