<?php

namespace App\Service;

use App\Message\MeilisearchMessage;
use Symfony\Component\DependencyInjection\Attribute\Autowire;
use Symfony\Component\Messenger\MessageBusInterface;
use Symfony\Contracts\HttpClient\HttpClientInterface;

class MeilisearchService
{
    public function __construct(
        private HttpClientInterface $httpClient,
        private MessageBusInterface $bus,
        #[Autowire(env: 'MEILISEARCH_URL')] private string $url,
        #[Autowire(env: 'MEILISEARCH_API_KEY')] private string $apiKey,
    ) {}

    public function indexExists(string $index): bool
    {
        try {
            $response = $this->httpClient->request('GET', $this->url . "/indexes/{$index}", [
                'headers' => ['Authorization' => "Bearer {$this->apiKey}"],
            ]);
            return $response->getStatusCode() === 200;
        } catch (\Throwable) {
            return false;
        }
    }

    public function createIndexIfNotExists(string $index, string $primaryKey = 'id'): void
    {
        if (!$this->indexExists($index)) {
            $this->createIndex($index, $primaryKey);
        }
    }

    public function createIndex(string $index, string $primaryKey = 'id'): void
    {
        $this->bus->dispatch(new MeilisearchMessage('createIndex', $index, ['primaryKey' => $primaryKey]));
    }

    public function deleteIndex(string $index): void
    {
        $this->bus->dispatch(new MeilisearchMessage('deleteIndex', $index));
    }

    public function addDocuments(string $index, array $documents): void
    {
        $this->bus->dispatch(new MeilisearchMessage('addDocuments', $index, ['documents' => $documents]));
    }

    public function updateDocuments(string $index, array $documents): void
    {
        $this->bus->dispatch(new MeilisearchMessage('updateDocuments', $index, ['documents' => $documents]));
    }

    public function deleteDocument(string $index, string|int $documentId): void
    {
        $this->bus->dispatch(new MeilisearchMessage('deleteDocument', $index, ['documentId' => $documentId]));
    }

    public function deleteDocuments(string $index, array $ids): void
    {
        $this->bus->dispatch(new MeilisearchMessage('deleteDocuments', $index, ['ids' => $ids]));
    }

    public function updateSettings(string $index, array $settings): void
    {
        $this->bus->dispatch(new MeilisearchMessage('updateSettings', $index, ['settings' => $settings]));
    }

    public function search(string $index, string $query, array $options = []): array
    {
        return $this->request('POST', "/indexes/{$index}/search", array_merge([
            'q' => $query,
        ], $options));
    }

    public function getDocument(string $index, string|int $documentId): array
    {
        return $this->request('GET', "/indexes/{$index}/documents/{$documentId}");
    }

    public function request(string $method, string $path, ?array $body = null): array
    {
        $options = [
            'headers' => [
                'Authorization' => "Bearer {$this->apiKey}",
                'Content-Type' => 'application/json',
            ],
        ];

        if ($body !== null && $method !== 'GET' && $method !== 'DELETE') {
            $options['json'] = $body;
        }

        $response = $this->httpClient->request($method, $this->url . $path, $options);

        if ($response->getStatusCode() === 204) {
            return [];
        }

        return $response->toArray(false);
    }
}