import 'package:url_launcher/url_launcher.dart';
import 'dart:io';
import 'package:siro_service/main.dart';

String _formatPhoneNumberForCommunication(String rawPhone, String country) {
  String digits = rawPhone.replaceAll(RegExp(r'[^0-9]'), '');
  if (digits.startsWith('00')) {
    digits = digits.substring(2);
  }
  if (country == 'Jordan') {
    if (digits.startsWith('962') && digits.length >= 12) {
      return digits;
    }
    if (digits.startsWith('0')) {
      digits = digits.substring(1);
    }
    if (!digits.startsWith('962')) {
      digits = '962$digits';
    }
  } else if (country == 'Egypt') {
    if (digits.startsWith('20') && digits.length >= 11) {
      return digits;
    }
    if (digits.startsWith('0')) {
      digits = digits.substring(1);
    }
    if (!digits.startsWith('20')) {
      digits = '20$digits';
    }
  } else if (country == 'Syria') {
    if (digits.startsWith('963') && digits.length >= 11) {
      return digits;
    }
    if (digits.startsWith('0')) {
      digits = digits.substring(1);
    }
    if (!digits.startsWith('963')) {
      digits = '963$digits';
    }
  } else {
    if (digits.startsWith('0') && digits.length > 5) {
      digits = digits.substring(1);
    }
  }
  return digits;
}

void showInBrowser(String url) async {
  if (await canLaunchUrl(Uri.parse(url))) {
    launchUrl(Uri.parse(url));
  } else {}
}

Future<void> makePhoneCall(String phoneNumber) async {
  final cleanPhone = phoneNumber.replaceAll(RegExp(r'[^0-9+]'), '');
  final Uri launchUri = Uri(
    scheme: 'tel',
    path: cleanPhone,
  );
  if (await canLaunchUrl(launchUri)) {
    await launchUrl(launchUri);
  } else {
    final String telUrl = 'tel:$cleanPhone';
    if (await canLaunchUrl(Uri.parse(telUrl))) {
      await launchUrl(Uri.parse(telUrl));
    }
  }
}

void launchCommunication(
    String method, String contactInfo, String message) async {
  String url;
  final cleanPhone = contactInfo.replaceAll(RegExp(r'[^0-9+]'), '');
  final country = box.read('countryCode')?.toString() ?? 'Jordan';
  final phone = _formatPhoneNumberForCommunication(contactInfo, country);

  if (Platform.isIOS) {
    switch (method) {
      case 'phone':
        url = 'tel:$cleanPhone';
        break;
      case 'sms':
        url = 'sms:$cleanPhone?body=${Uri.encodeComponent(message)}';
        break;
      case 'whatsapp':
        url =
            'https://api.whatsapp.com/send?phone=$phone&text=${Uri.encodeComponent(message)}';
        break;
      case 'email':
        url =
            'mailto:$contactInfo?subject=Subject&body=${Uri.encodeComponent(message)}';
        break;
      default:
        return;
    }
  } else if (Platform.isAndroid) {
    switch (method) {
      case 'phone':
        url = 'tel:$cleanPhone';
        break;
      case 'sms':
        url = 'sms:$cleanPhone?body=${Uri.encodeComponent(message)}';
        break;
      case 'whatsapp':
        // Check if WhatsApp is installed
        final bool whatsappInstalled =
            await canLaunchUrl(Uri.parse('whatsapp://'));
        if (whatsappInstalled) {
          url =
              'whatsapp://send?phone=$phone&text=${Uri.encodeComponent(message)}';
        } else {
          // Provide an alternative action, such as opening the WhatsApp Web API
          url =
              'https://api.whatsapp.com/send?phone=$phone&text=${Uri.encodeComponent(message)}';
        }
        break;
      case 'email':
        url =
            'mailto:$contactInfo?subject=Subject&body=${Uri.encodeComponent(message)}';
        break;
      default:
        return;
    }
  } else {
    return;
  }

  if (await canLaunchUrl(Uri.parse(url))) {
    await launchUrl(Uri.parse(url));
  } else {}
}