<?php

declare(strict_types=1);

namespace Openstatus\Sdk;

use GuzzleHttp\Client as GuzzleClient;
use GuzzleHttp\Psr7\HttpFactory;
use Openstatus\Sdk\Namespaces\Health;
use Openstatus\Sdk\Namespaces\HealthV1;
use Openstatus\Sdk\Namespaces\Maintenance;
use Openstatus\Sdk\Namespaces\MaintenanceV1;
use Openstatus\Sdk\Namespaces\Monitor;
use Openstatus\Sdk\Namespaces\MonitorV1;
use Openstatus\Sdk\Namespaces\Notification;
use Openstatus\Sdk\Namespaces\NotificationV1;
use Openstatus\Sdk\Namespaces\StatusPage;
use Openstatus\Sdk\Namespaces\StatusPageV1;
use Openstatus\Sdk\Namespaces\StatusReport;
use Openstatus\Sdk\Namespaces\StatusReportV1;
use Openstatus\Sdk\Services\HealthServiceClient;
use Openstatus\Sdk\Services\MaintenanceServiceClient;
use Openstatus\Sdk\Services\MonitorServiceClient;
use Openstatus\Sdk\Services\NotificationServiceClient;
use Openstatus\Sdk\Services\StatusPageServiceClient;
use Openstatus\Sdk\Services\StatusReportServiceClient;
use Openstatus\Sdk\Transport\JsonTransport;

final class OpenstatusClient
{
    public const VERSION = '0.1.0';

    public const DEFAULT_BASE_URL = 'https://api.openstatus.dev';

    public readonly Health $health;
    public readonly Monitor $monitor;
    public readonly StatusReport $statusReport;
    public readonly StatusPage $statusPage;
    public readonly Maintenance $maintenance;
    public readonly Notification $notification;

    public function __construct(ClientOptions $options = new ClientOptions())
    {
        $apiKey = $options->apiKey ?? self::envOrNull('OPENSTATUS_API_KEY');
        $baseUrl = $options->baseUrl ?? self::envOrNull('OPENSTATUS_API_URL') ?? self::DEFAULT_BASE_URL;

        $defaultFactory = new HttpFactory();
        $requestFactory = $options->requestFactory ?? $defaultFactory;
        $streamFactory = $options->streamFactory ?? $defaultFactory;
        $http = $options->httpClient ?? new GuzzleClient(['timeout' => $options->timeout]);

        $defaultHeaders = [
            'Content-Type' => 'application/json',
            'Accept' => 'application/json',
            'User-Agent' => sprintf('openstatus-php/%s php/%s', self::VERSION, PHP_VERSION),
        ];
        if ($apiKey !== null) {
            $defaultHeaders['x-openstatus-key'] = $apiKey;
        }

        $transport = new JsonTransport(
            http: $http,
            requestFactory: $requestFactory,
            streamFactory: $streamFactory,
            baseUrl: $baseUrl,
            defaultHeaders: $defaultHeaders,
            logger: $options->logger,
        );

        $this->health = new Health(new HealthV1(new HealthServiceClient($transport)));
        $this->monitor = new Monitor(new MonitorV1(new MonitorServiceClient($transport)));
        $this->statusReport = new StatusReport(new StatusReportV1(new StatusReportServiceClient($transport)));
        $this->statusPage = new StatusPage(new StatusPageV1(new StatusPageServiceClient($transport)));
        $this->maintenance = new Maintenance(new MaintenanceV1(new MaintenanceServiceClient($transport)));
        $this->notification = new Notification(new NotificationV1(new NotificationServiceClient($transport)));
    }

    private static function envOrNull(string $name): ?string
    {
        $value = getenv($name);
        return $value === false || $value === '' ? null : $value;
    }
}