SOS Update

App.xaml.cs

@@ -1,10 +1,27 @@
-namespace Justice
+using Justice.Helpers;
+using Justice.Models;
+
+namespace Justice
 {
     public partial class App : Application
     {
         public App()
         {
             InitializeComponent();
+            InitializeDatabaseAsync(); // Call the async method to initialize the database
+        }
+
+        private async void InitializeDatabaseAsync()
+        {
+            try
+            {
+                var dbHelper = new DatabaseHelper();
+                await dbHelper.InitializeAsync<EmergencyContact>(); // Asynchronously create the EmergencyContact table
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Database initialization failed: {ex.Message}");
+            }
         }
 
         protected override Window CreateWindow(IActivationState? activationState)

Helpers/DatabaseHelper.cs

@@ -1,42 +1,38 @@
-using System;
+using SQLite;
+using System;
 using System.Collections.Generic;
-using System.Linq;
+using System.IO;
 using System.Linq.Expressions;
-using System.Text;
 using System.Threading.Tasks;
-using SQLite;
 
 namespace Justice.Helpers
 {
     public class DatabaseHelper
     {
         private readonly SQLiteAsyncConnection _database;
-        public DatabaseHelper(string databaseName = "Appdatabase.db")
+
+        public DatabaseHelper(string databaseName = "JusticeAppDatabase.db")
         {
             var dbPath = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData), databaseName);
             _database = new SQLiteAsyncConnection(dbPath);
         }
-        public async Task InitializeAsync<T>() where T: new()
+
+        public async Task InitializeAsync<T>() where T : class, new()
         {
             await _database.CreateTableAsync<T>();
         }
-        public async Task<int> InsertAsync<T>(T item) where T : new()
+
+        public async Task<int> InsertAsync<T>(T item) where T : class, new()
         {
             return await _database.InsertAsync(item);
         }
-        public async Task<List<T>>GetAllAsync<T>()where T : new()
+
+        public async Task<List<T>> GetAllAsync<T>() where T : class, new()
         {
             return await _database.Table<T>().ToListAsync();
         }
-        public async Task<List<T>> GetAsync<T>(Expression<Func<T, bool>> predicate) where T : new()
+
-        {
+        public async Task<int> DeleteAsync<T>(T item) where T : class, new()
-            return await _database.Table<T>().Where(predicate).ToListAsync();
-        }
-        public async Task<int> UpdateAsync<T>(T item) where T : new()
-        {
-            return await _database.UpdateAsync(item);
-        }
-        public async Task<int> DeleteAsync<T>(T item) where T : new()
         {
             return await _database.DeleteAsync(item);
         }

Helpers/GeolocationHelper.cs

@@ -3,30 +3,59 @@ using System.Collections.Generic;
 using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
+using Microsoft.Maui.ApplicationModel;
 
 namespace Justice.Helpers
 {
     public class GeolocationHelper
     {
-        public static async Task<(double Latitude, double Longitude)> GetCurrentLocationAsync()
+        /// <summary>
+        /// Retrieves the user's current latitude, longitude, and a readable address.
+        /// </summary>
+        /// <returns>A tuple containing Latitude, Longitude, and Address.</returns>
+        public static async Task<(double Latitude, double Longitude, string Address)> GetCurrentLocationAsync()
         {
-            var location = await Geolocation.Default.GetLocationAsync();
+            try
+            {
+                var location = await Geolocation.Default.GetLocationAsync(new GeolocationRequest
+                {
+                    DesiredAccuracy = GeolocationAccuracy.High,
+                    Timeout = TimeSpan.FromSeconds(10)
+                });
+
                 if (location != null)
                 {
-                return (location.Latitude, location.Longitude);
+                    var placemarks = await Geocoding.Default.GetPlacemarksAsync(location);
+                    var placemark = placemarks.FirstOrDefault();
+                    string address = "Address not found";
+
+                    if (placemark != null)
+                    {
+                        address = $"{placemark.SubLocality}, {placemark.Thoroughfare}, " +
+                                  $"{placemark.Locality}, {placemark.AdminArea}, {placemark.CountryName}";
                     }
-            throw new Exception("Unable to fetch location");
+
+                    return (location.Latitude, location.Longitude, address);
                 }
 
-        public static async Task<string> GetReadableAddressAsync(double latitude, double longitude)
+                // Return a default value if location is null
+                return (0, 0, "Unable to fetch location.");
+            }
+            catch (FeatureNotSupportedException)
             {
-            var placemarks = await Geocoding.Default.GetPlacemarksAsync(latitude, longitude);
+                // Return a default value if location services are not supported
-            var placemark = placemarks.FirstOrDefault();
+                return (0, 0, "Location services are not supported on this device.");
-            if ( placemark !=null)
+            }
+            catch (PermissionException)
+            {
+                // Return a default value if permissions are not granted
+                return (0, 0, "Location permissions are not granted.");
+            }
+            catch (Exception ex)
             {
-                return $"{placemark.SubLocality}, {placemark.Thoroughfare}, {placemark.Locality}, {placemark.CountryName}";
+                // Return a default value for other errors
+                return (0, 0, $"An error occurred: {ex.Message}");
             }
-            return "Address Not Found";
         }
     }
 }

Helpers/SmsHelper.cs

@@ -0,0 +1,23 @@
+using Microsoft.Maui.ApplicationModel.Communication;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Justice.Helpers
+{
+    public static class SmsHelper
+    {
+        public static async Task SendSmsAsync(string message, List<string> recipients)
+        {
+            try
+            {
+                var smsMessage = new SmsMessage(message, recipients);
+                await Sms.ComposeAsync(smsMessage);
+            }
+            catch (Exception ex)
+            {
+                throw new Exception($"Unable to send SMS: {ex.Message}");
+            }
+        }
+    }
+}

Helpers/SosService.cs

@@ -0,0 +1,32 @@
+using Justice.Helpers;
+using System;
+using System.Collections.Generic;
+using System.Threading.Tasks;
+
+namespace Justice.Services
+{
+    public class SosService
+    {
+        public async Task SendSosAlertAsync(List<string> recipients)
+        {
+            try
+            {
+                // Fetch location and address
+                (double latitude, double longitude, string address) = await GeolocationHelper.GetCurrentLocationAsync();
+
+
+                // Prepare the SOS message
+                string message = $"SOS Alert! I need help. My location:\n" +
+                                 $"Latitude: {latitude}, Longitude: {longitude}\n" +
+                                 $"Address: {address}\n\n";
+
+                // Send the SMS
+                await SmsHelper.SendSmsAsync(message, recipients);
+            }
+            catch (Exception ex)
+            {
+                throw new Exception($"SOS Alert failed: {ex.Message}");
+            }
+        }
+    }
+}

Justice.csproj

@@ -71,9 +71,18 @@
 	</ItemGroup>
 
 	<ItemGroup>
+	  <MauiXaml Update="Views\AddContactPage.xaml">
+	    <Generator>MSBuild:Compile</Generator>
+	  </MauiXaml>
 	  <MauiXaml Update="Views\DashboardPage.xaml">
 	    <Generator>MSBuild:Compile</Generator>
 	  </MauiXaml>
+	  <MauiXaml Update="Views\EmergencyContactsPage.xaml">
+	    <Generator>MSBuild:Compile</Generator>
+	  </MauiXaml>
+	  <MauiXaml Update="Views\SosPage.xaml">
+	    <Generator>MSBuild:Compile</Generator>
+	  </MauiXaml>
 	</ItemGroup>
 
 </Project>

Justice.csproj.user

@@ -3,17 +3,26 @@
   <PropertyGroup>
     <IsFirstTimeProjectOpen>False</IsFirstTimeProjectOpen>
     <ActiveDebugFramework>net9.0-android</ActiveDebugFramework>
-    <ActiveDebugProfile>Medium Phone API 35 (Android 15.0 - API 35)</ActiveDebugProfile>
+    <ActiveDebugProfile>Samsung SM-M325F (Android 13.0 - API 33)</ActiveDebugProfile>
-    <SelectedPlatformGroup>Emulator</SelectedPlatformGroup>
+    <SelectedPlatformGroup>PhysicalDevice</SelectedPlatformGroup>
     <DefaultDevice>Medium_Phone_API_35</DefaultDevice>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(TargetFramework)|$(Platform)'=='Debug|net9.0-android|AnyCPU'">
     <DebuggerFlavor>ProjectDebugger</DebuggerFlavor>
   </PropertyGroup>
   <ItemGroup>
+    <MauiXaml Update="Views\AddContactPage.xaml">
+      <SubType>Designer</SubType>
+    </MauiXaml>
     <MauiXaml Update="Views\DashboardPage.xaml">
       <SubType>Designer</SubType>
     </MauiXaml>
+    <MauiXaml Update="Views\EmergencyContactsPage.xaml">
+      <SubType>Designer</SubType>
+    </MauiXaml>
+    <MauiXaml Update="Views\SosPage.xaml">
+      <SubType>Designer</SubType>
+    </MauiXaml>
   </ItemGroup>
   <ItemGroup>
     <None Update="App.xaml">

Models/EmergencyContact.cs

@@ -4,11 +4,13 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using Justice.Models;
+using SQLite;
 
 namespace Justice.Models
 {
     public class EmergencyContact
     {
+        [PrimaryKey,AutoIncrement]
         public int Id { get; set; }
         public string Name { get; set; }
         public string MobileNumber { get; set; }

Views/AddContactPage.xaml

@@ -1,9 +1,10 @@
 <ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
              xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
              x:Class="Justice.Views.AddContactPage"
-             Title="Add Emergency Contact">
+             Title="Emergency Contacts">
 
     <StackLayout Padding="20">
+        <!-- Input Fields -->
         <Label Text="Name" FontSize="Medium" />
         <Entry x:Name="NameEntry" Placeholder="Enter name" />
 
@@ -16,32 +17,55 @@
                 <x:Array Type="{x:Type x:String}">
                     <x:String>Parents</x:String>
                     <x:String>Friends</x:String>
-                    <x:String>Colleagues</x:String>
+                    <x:String>Authority</x:String>
-                    <x:String>Others</x:String>
                 </x:Array>
             </Picker.ItemsSource>
         </Picker>
+
+        <!-- Save Button -->
         <Button Text="Save Contact" Clicked="OnSaveContactClicked" />
-        <ScrollView>
+
-            <StackLayout>
+        <!-- List of Saved Contacts -->
-                <Grid RowSpacing="10" ColumnSpacing="10">
+        <Label Text="Saved Contacts" FontSize="Medium" Margin="0,20,0,10" />
+        <Grid>
             <Grid.ColumnDefinitions>
                 <ColumnDefinition Width="*"/>
                 <ColumnDefinition Width="*"/>
                 <ColumnDefinition Width="*"/>
+                <ColumnDefinition Width="*"/>
             </Grid.ColumnDefinitions>
-                    <Border Grid.Column="0" HeightRequest="100" Margin="1">
+                <Label Text="Name" FontSize="Medium" Grid.Column="0"/>
-                        
+                <Label Text="Number" FontSize="Medium" Grid.Column="1"/>
-                    </Border>
+                <Label Text="Group" FontSize="Medium"  Grid.Column="2"/>
-                    <Border Grid.Column="1" HeightRequest="100">
+                 <Label  FontSize="Medium"  Grid.Column="3"/>
-
+        </Grid>
-                    </Border>
+        <ListView x:Name="ContactsListView"
-                    <Border Grid.Column="2" HeightRequest="100">
+                  VerticalOptions="FillAndExpand"
-
+                  HasUnevenRows="True">
-                    </Border>
+            <ListView.ItemTemplate>
-
+                <DataTemplate>
+                    <ViewCell>
+                        <StackLayout Orientation="Vertical" Padding="10">
+                            <Grid>
+                                <Grid.ColumnDefinitions>
+                                    <ColumnDefinition Width="*"/>
+                                    <ColumnDefinition Width="*"/>
+                                    <ColumnDefinition Width="*"/>
+                                    <ColumnDefinition Width="*"/>
+                                </Grid.ColumnDefinitions>
+                                <Label Text="{Binding Name}" FontSize="Medium" Grid.Column="0"/>
+                                <Label Text="{Binding MobileNumber}" FontSize="Small" Grid.Column="1"/>
+                                <Label Text="{Binding Group}" FontSize="Small" Grid.Column="2"/>
+                                <Button Text="Delete" 
+                                Grid.Column="3" 
+                                TextColor="LightGray" 
+                                Clicked="OnDeleteContactClicked" 
+                                CommandParameter="{Binding .}" />
                             </Grid>
                         </StackLayout>
-        </ScrollView>
+                    </ViewCell>
+                </DataTemplate>
+            </ListView.ItemTemplate>
+        </ListView>
     </StackLayout>
 </ContentPage>

Views/AddContactPage.xaml.cs

@@ -1,39 +1,113 @@
-using Justice.Models;
-using Justice.Views;
 using Justice.Helpers;
+using Justice.Models;
+using System.Collections.ObjectModel;
+using System.Threading.Tasks;
 
-
+namespace Justice.Views
-namespace Justice.Views;
+{
-
     public partial class AddContactPage : ContentPage
     {
         private readonly DatabaseHelper _databaseHelper;
+        public ObservableCollection<EmergencyContact> Contacts { get; set; }
+
         public AddContactPage()
         {
             InitializeComponent();
             _databaseHelper = new DatabaseHelper();
+            Contacts = new ObservableCollection<EmergencyContact>();
+            ContactsListView.ItemsSource = Contacts;
         }
-	private async void OnSaveContactClicked(object sender, EventArgs e)
+
+        protected override async void OnAppearing()
+        {
+            base.OnAppearing();
+            await LoadContactsAsync();
+        }
+
+        private async Task LoadContactsAsync()
         {
             try
             {
-			if (string.IsNullOrWhiteSpace(NameEntry.Text) || string.IsNullOrWhiteSpace(MobileNumberEntry.Text) || GroupPicker.SelectedItem == null)
+                Contacts.Clear();
+                var contactsFromDb = await _databaseHelper.GetAllAsync<EmergencyContact>();
+                foreach (var contact in contactsFromDb)
+                {
+                    Contacts.Add(contact);
+                }
+            }
+            catch (Exception ex)
+            {
+                await DisplayAlert("Error", $"Failed to load contacts: {ex.Message}", "OK");
+            }
+        }
+
+        private async void OnSaveContactClicked(object sender, EventArgs e)
+        {
+            if (string.IsNullOrWhiteSpace(NameEntry.Text) ||
+                string.IsNullOrWhiteSpace(MobileNumberEntry.Text) ||
+                GroupPicker.SelectedItem == null)
             {
-				await DisplayAlert("Error", "All Fields Required", "OK");				
+                await DisplayAlert("Error", "All fields are required.", "OK");
+                return;
             }
+
             var contact = new EmergencyContact
             {
-				Name = NameEntry.Text,
+                Name = NameEntry.Text.Trim(),
-				MobileNumber = MobileNumberEntry.Text,
+                MobileNumber = MobileNumberEntry.Text.Trim(),
                 Group = GroupPicker.SelectedItem.ToString()
             };
+
+            try
+            {
                 await _databaseHelper.InsertAsync(contact);
-			await DisplayAlert("Success", "Contact Saved Successfully", "OK");
+                await LoadContactsAsync();
-			await Navigation.PushAsync(new EmergencyContactsPage());
+
+                NameEntry.Text = string.Empty;
+                MobileNumberEntry.Text = string.Empty;
+                GroupPicker.SelectedItem = null;
+
+                await DisplayAlert("Success", "Contact saved successfully!", "OK");
             }
             catch (Exception ex)
             {
-            await DisplayAlert("Success", $"{ex}", "OK");
+                await DisplayAlert("Error", $"Failed to save contact: {ex.Message}", "OK");
             }
         }
+
+        private async void OnDeleteContactClicked(object sender, EventArgs e)
+        {
+            try
+            {
+                Console.WriteLine("Delete button clicked."); // Debug log
+
+                var button = sender as Button;
+                if (button?.CommandParameter is EmergencyContact contactToDelete)
+                {
+                    Console.WriteLine($"Attempting to delete contact: {contactToDelete.Name}"); // Debug log
+
+                    bool confirm = await DisplayAlert("Delete Contact",
+                        $"Are you sure you want to delete {contactToDelete.Name}?", "Yes", "No");
+
+                    if (!confirm)
+                        return;
+
+                    await _databaseHelper.DeleteAsync(contactToDelete);
+                    Contacts.Remove(contactToDelete);
+
+                    await DisplayAlert("Success", "Contact deleted successfully!", "OK");
+                }
+                else
+                {
+                    Console.WriteLine("CommandParameter is null or invalid."); // Debug log
+                }
+            }
+            catch (Exception ex)
+            {
+                Console.WriteLine($"Error in OnDeleteContactClicked: {ex.Message}"); // Debug log
+                await DisplayAlert("Error", $"Failed to delete contact: {ex.Message}", "OK");
+            }
+        }
+
+    }
 }

Views/DashboardPage.xaml

@@ -5,7 +5,7 @@
              Title="DashboardPage" BackgroundColor="WhiteSmoke">
     <ScrollView>
         <VerticalStackLayout>
-            <Button Text="Get Current Location" Clicked="OnGetLocationClicked" 
+            <Button Text="Get Current Location" 
             HorizontalOptions="Fill" 
             BackgroundColor="White"
             
@@ -97,7 +97,7 @@
                     <VerticalStackLayout Spacing="10" HorizontalOptions="FillAndExpand" VerticalOptions="Start">
                         <Label Text="View Report" FontSize="17" FontAttributes="Bold" HorizontalOptions="Start"/>
                         <Label Text="Check your incident report" FontSize="12" FontAttributes="Bold" HorizontalOptions="Start" TextColor="Gray"/>
-                        <Button Text="SEND SOS" TextColor="White" FontAttributes="Bold" CornerRadius="5" BackgroundColor="#8BC34A" Clicked="OnViewReportClicked"/>
+                        <Button Text="View Reports" TextColor="White" FontAttributes="Bold" CornerRadius="5" BackgroundColor="#8BC34A" Clicked="OnViewReportClicked"/>
                     </VerticalStackLayout>
                 </Border>
             </Grid>

Views/DashboardPage.xaml.cs

@@ -12,20 +12,6 @@ public partial class DashboardPage : ContentPage
 
     }
  
-    public async void OnGetLocationClicked(object sender, EventArgs e)
-	{
-		try 
-		{
-			var (latitude, longitude) = await GeolocationHelper.GetCurrentLocationAsync();
-			string address = await GeolocationHelper.GetReadableAddressAsync(latitude, longitude);
-			LocationLabel.Text = $"{address}";
-		}
-		catch (Exception ex)
-		{
-			await DisplayAlert("Error", ex.Message,"OK");
-		}
-	}
-
 	private void OnInformationCenterClicked(object sender, EventArgs e)
 	{
 		DisplayAlert("Information button clicked","Information","OK");
@@ -46,7 +32,7 @@ public partial class DashboardPage : ContentPage
 
     private void OnSOSButtonClicked(object sender, EventArgs e)
     {
-        DisplayAlert("SOS button clicked", "Send SOS", "OK");
+        Navigation.PushAsync(new SosPage());
     }
 
 	private void OnAddContactClicked(object sender, EventArgs e)

Views/SosPage.xaml

@@ -0,0 +1,25 @@
+<ContentPage xmlns="http://schemas.microsoft.com/dotnet/2021/maui"
+             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
+             x:Class="Justice.Views.SosPage"
+             Title="SOS Alert">
+
+    <StackLayout Padding="20" VerticalOptions="CenterAndExpand">
+        <Label Text="Select Group for SOS Alert" FontSize="Medium" />
+        <Picker x:Name="GroupPicker">
+            <Picker.ItemsSource>
+                <x:Array Type="{x:Type x:String}">
+                    <x:String>Parents</x:String>
+                    <x:String>Friends</x:String>
+                    <x:String>Authority</x:String>
+                </x:Array>
+            </Picker.ItemsSource>
+        </Picker>
+
+        <Button Text="Send SOS Alert" 
+                Clicked="OnSendSosClicked" 
+                BackgroundColor="Red" 
+                TextColor="White" 
+                FontSize="Large"
+                HorizontalOptions="Center" />
+    </StackLayout>
+</ContentPage>

Views/SosPage.xaml.cs

@@ -0,0 +1,60 @@
+using Justice.Helpers;
+using Justice.Models;
+using Justice.Services;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+
+namespace Justice.Views
+{
+    public partial class SosPage : ContentPage
+    {
+        private readonly DatabaseHelper _databaseHelper;
+        private readonly SosService _sosService;
+
+        public SosPage()
+        {
+            InitializeComponent();
+            _databaseHelper = new DatabaseHelper();
+            _sosService = new SosService();
+        }
+
+        private async void OnSendSosClicked(object sender, EventArgs e)
+        {
+            try
+            {
+                // Get the selected group
+                var selectedGroup = GroupPicker.SelectedItem as string;
+
+                if (string.IsNullOrEmpty(selectedGroup))
+                {
+                    await DisplayAlert("Error", "Please select a group.", "OK");
+                    return;
+                }
+
+                // Fetch emergency contacts from the selected group
+                var contacts = await _databaseHelper.GetAllAsync<EmergencyContact>();
+                var groupContacts = contacts
+                    .Where(contact => contact.Group.Equals(selectedGroup, StringComparison.OrdinalIgnoreCase))
+                    .ToList();
+
+                if (!groupContacts.Any())
+                {
+                    await DisplayAlert("Error", $"No contacts found in the group '{selectedGroup}'.", "OK");
+                    return;
+                }
+
+                // Extract mobile numbers for the SOS alert
+                var emergencyNumbers = groupContacts.Select(contact => contact.MobileNumber).ToList();
+
+                // Send the SOS alert
+                await _sosService.SendSosAlertAsync(emergencyNumbers);
+            }
+            catch (Exception ex)
+            {
+                await DisplayAlert("Error", $"Failed to send SOS Alert: {ex.Message}", "OK");
+            }
+        }
+    }
+}