<?php

namespace App\Http\Controllers\Api\V1;

use App\Http\Controllers\Api\Concerns\RespondsWithJson;
use App\Http\Controllers\Controller;
use App\Services\AuditLogService;
use App\Services\ProjectSearchService;
use App\Support\ApiActor;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use InvalidArgumentException;
use RuntimeException;
use Throwable;

class ProjectSearchController extends Controller
{
    use RespondsWithJson;

    public function __construct(
        private readonly ProjectSearchService $projectSearch,
        private readonly AuditLogService $auditLog
    ) {
    }

    public function sources(): JsonResponse
    {
        return $this->ok($this->projectSearch->listSources());
    }

    public function indexStatus(): JsonResponse
    {
        if (! $this->projectSearch->isAvailable()) {
            return $this->fail('Indeks project_search belum tersedia.', 'service_unavailable', 503);
        }

        return $this->ok($this->projectSearch->indexStatus());
    }

    public function ask(Request $request): JsonResponse
    {
        $validated = $request->validate([
            'query' => ['required', 'string', 'min:3', 'max:500'],
            'sources' => ['sometimes', 'array'],
            'sources.*' => ['string', 'max:64'],
            'limit' => ['sometimes', 'integer', 'min:1', 'max:50'],
        ]);

        try {
            $result = $this->projectSearch->ask(
                $validated['query'],
                $validated['sources'] ?? [],
                (int) ($validated['limit'] ?? config('project_search.default_limit', 20))
            );

            $actor = $request->attributes->get('api_actor');
            $username = $actor instanceof ApiActor ? $actor->identifier : null;
            $client = $actor instanceof ApiActor ? $actor->type : null;

            $this->auditLog->log(
                'project_search.ask',
                'api',
                $username,
                $client,
                'project_search',
                $request,
                200,
                [
                    'query' => $validated['query'],
                    'result_count' => $result['meta']['result_count'] ?? 0,
                    'sources' => $result['meta']['sources'] ?? [],
                ]
            );

            return $this->ok([
                'answer' => $result['answer'],
                'results' => $result['results'],
            ], $result['meta']);
        } catch (InvalidArgumentException|RuntimeException $e) {
            return $this->fail($e->getMessage(), 'validation_error', 422);
        } catch (Throwable) {
            return $this->fail('Gagal memproses pencarian proyek.', 'server_error', 500);
        }
    }
}