102 lines
3.4 KiB
Dart
102 lines
3.4 KiB
Dart
import 'dart:io';
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import 'package:flutter/material.dart';
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import 'package:permission_handler/permission_handler.dart';
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import 'package:send_message/send_message.dart' show sendSMS;
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import 'package:simcards/sim_card.dart';
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import 'package:simcards/simcards.dart';
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// This enum provides detailed status back to the UI layer.
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enum PermissionStatusResult { granted, denied, permanentlyDenied, restricted }
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class SmsService {
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final Simcards _simcards = Simcards();
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/// Handles the requesting of SMS and Phone permissions.
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/// Returns a detailed status: granted, denied, or permanentlyDenied.
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Future<PermissionStatusResult> handleSmsPermission() async {
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var smsStatus = await Permission.sms.status;
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var phoneStatus = await Permission.phone.status;
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// Check initial status
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if (smsStatus.isGranted && phoneStatus.isGranted) {
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return PermissionStatusResult.granted;
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}
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if (smsStatus.isPermanentlyDenied || phoneStatus.isPermanentlyDenied) {
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return PermissionStatusResult.permanentlyDenied;
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}
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if (smsStatus.isRestricted || phoneStatus.isRestricted) {
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return PermissionStatusResult.restricted;
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}
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// Request permissions if not granted
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print("Requesting SMS and Phone permissions...");
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await [Permission.phone, Permission.sms].request();
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// Re-check status after request
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smsStatus = await Permission.sms.status;
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phoneStatus = await Permission.phone.status;
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if (smsStatus.isGranted && phoneStatus.isGranted) {
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return PermissionStatusResult.granted;
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}
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if (smsStatus.isPermanentlyDenied || phoneStatus.isPermanentlyDenied) {
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return PermissionStatusResult.permanentlyDenied;
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}
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if (smsStatus.isRestricted || phoneStatus.isRestricted) {
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return PermissionStatusResult.restricted;
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}
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// If none of the above, it's denied
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return PermissionStatusResult.denied;
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}
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/// Tries to send a single verification SMS.
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/// This should only be called AFTER permissions have been granted.
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Future<bool> sendVerificationSms({
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required BuildContext context,
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required String destinationNumber,
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required String message,
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}) async {
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try {
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List<SimCard> simCardList = await _simcards.getSimCards();
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if (simCardList.isEmpty) {
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print("No SIM card detected.");
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return false;
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}
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return await _sendSms(destinationNumber, message, simCardList.first);
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} catch (e) {
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print("An error occurred in the SMS process: $e");
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return false;
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}
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}
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/// Private function to perform the SMS sending action.
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Future<bool> _sendSms(
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String destinationNumber, String message, SimCard selectedSim) async {
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if (Platform.isAndroid) {
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try {
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String smsMessage = message;
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String result = await sendSMS(
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message: smsMessage,
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recipients: [destinationNumber],
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sendDirect: true,
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);
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print("Background SMS send attempt result: $result");
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if (result.toLowerCase().contains('sent')) {
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print("Success: SMS appears to have been sent.");
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return true;
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} else {
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print("Failure: SMS was not sent. Result: $result");
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return false;
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}
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} catch (e) {
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print("Error attempting to send SMS directly: $e");
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return false;
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}
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} else {
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print("SMS sending is only supported on Android.");
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return false;
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}
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}
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} |