<?php

namespace App\Services;

use Illuminate\Support\Facades\Http;
use Illuminate\Support\Facades\Log;

class WebsocketBroadcastService
{
    private const DEFAULT_TRIGGER_PATH = '/prc/api/trigger-update';

    public function triggerBaseUrl(): ?string
    {
        $fromEnv = trim((string) (env('WSS_LINK') ?: env('wssLink', '')));
        if ($fromEnv !== '') {
            return rtrim($fromEnv, '/');
        }

        $fromSetting = trim((string) app(ConfigService::class)->getString('wss_link', ''));
        if ($fromSetting !== '') {
            return rtrim($fromSetting, '/');
        }

        return null;
    }

    public function triggerPath(): string
    {
        $path = trim((string) app(ConfigService::class)->getString('wss_trigger_path', ''));

        return $path !== '' ? $path : self::DEFAULT_TRIGGER_PATH;
    }

    public function isEnabled(): bool
    {
        if (! app(ConfigService::class)->getBool('wss_enabled', true)) {
            return false;
        }

        return $this->triggerBaseUrl() !== null;
    }

    /**
     * @param array<string, mixed> $payload
     */
    public function sendEvent(string $trigger, array $payload = []): void
    {
        if (! $this->isEnabled()) {
            return;
        }

        $baseUrl = $this->triggerBaseUrl();
        if ($baseUrl === null) {
            return;
        }

        $body = array_merge($payload, ['trigger' => $trigger]);
        $host = $this->resolveHost();
        if ($host !== '') {
            $body['host'] = $host;
        }

        $url = $baseUrl.$this->triggerPath();

        try {
            Http::timeout(3)
                ->withHeaders(['Content-Type' => 'application/json'])
                ->withOptions([
                    'curl' => [
                        CURLOPT_IPRESOLVE => CURL_IPRESOLVE_V4,
                    ],
                ])
                ->post($url, $body);
        } catch (\Throwable $e) {
            Log::warning('Websocket broadcast failed', [
                'trigger' => $trigger,
                'url' => $url,
                'message' => $e->getMessage(),
            ]);
        }
    }

    private function resolveHost(): string
    {
        $config = app(ConfigService::class);
        $nameEn = trim((string) $config->getString('name_en', ''));
        if ($nameEn !== '') {
            return $nameEn;
        }

        if (! app()->runningInConsole() && request()) {
            return trim((string) request()->getHost());
        }

        return '';
    }
}