<?php

declare(strict_types=1);

namespace App\Services\Notifications;

use App\Models\NotificationSetting;
use Illuminate\Support\Facades\Http;

/**
 * WAHA (WhatsApp HTTP API) — self-hosted WhatsApp bridge.
 * Docs: https://waha.devlike.pro/docs/how-to/send-messages/
 */
class WahaNotifier
{
    public function sendBatch(NotificationSetting $setting, array $messages): void
    {
        foreach ($messages as $message) {
            $this->send($setting, $message);
        }
    }

    public function sendTest(NotificationSetting $setting): void
    {
        $this->send(
            $setting,
            "🐱 *KOL Manager — Test Notification*\n\nYour WhatsApp channel is configured correctly! 🎉"
        );
    }

    private function send(NotificationSetting $setting, string $text): void
    {
        $config  = $setting->config ?? [];
        $url     = rtrim($config['waha_url'] ?? '', '/');
        $session = $config['waha_session'] ?? 'default';
        $phone   = $config['phone'] ?? null;

        if (! $url || ! $phone) {
            throw new \RuntimeException('WAHA waha_url and phone are required.');
        }

        // Normalise phone: strip non-digits, ensure no leading +
        $chatId = preg_replace('/[^0-9]/', '', $phone) . '@c.us';

        $response = Http::timeout(15)->post("{$url}/api/sendText", [
            'session' => $session,
            'chatId'  => $chatId,
            'text'    => $text,
        ]);

        if (! $response->successful()) {
            throw new \RuntimeException('WAHA API error: ' . $response->body());
        }
    }
}