<?php

declare(strict_types=1);

namespace App\Http\Controllers;

use Illuminate\Http\JsonResponse;

final class BuildInfoController extends Controller
{
    public function __invoke(): JsonResponse
    {
        $path = base_path('build-info.json');

        if (! is_file($path) || ! is_readable($path)) {
            return response()->json(['error' => 'Build info unavailable'], 404)
                ->header('Cache-Control', 'no-store, max-age=0');
        }

        $decoded = json_decode((string) file_get_contents($path), true);

        if (! is_array($decoded)) {
            return response()->json(['error' => 'Build info unavailable'], 404)
                ->header('Cache-Control', 'no-store, max-age=0');
        }

        $commit = trim((string) ($decoded['git_sha'] ?? ''));
        $release = trim((string) ($decoded['release_id'] ?? ''));
        $builtAt = trim((string) ($decoded['deployed_at_utc'] ?? ''));

        if ($commit === '' || $release === '' || $builtAt === '') {
            return response()->json(['error' => 'Build info unavailable'], 404)
                ->header('Cache-Control', 'no-store, max-age=0');
        }

        return response()->json([
            'environment' => app()->environment(),
            'commit' => $commit,
            'built_at' => $builtAt,
            'release' => $release,
        ])->header('Cache-Control', 'no-store, max-age=0');
    }
}