Implementata gestione allegati

salesbook.Maui/Core/Services/AttachedService.cs

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+using salesbook.Shared.Core.Dto;
+using salesbook.Shared.Core.Interface;
+
+namespace salesbook.Maui.Core.Services;
+
+public class AttachedService : IAttachedService
+{
+    public async Task<AttachedDTO?> SelectImage()
+    {
+        var perm = await Permissions.RequestAsync<Permissions.Photos>();
+        if (perm != PermissionStatus.Granted) return null;
+
+        var result = await FilePicker.PickAsync(new PickOptions
+        {
+            PickerTitle = "Scegli un'immagine",
+            FileTypes = FilePickerFileType.Images
+        });
+
+        return result is null ? null : await ConvertToDto(result, AttachedDTO.TypeAttached.Image);
+    }
+
+    public async Task<AttachedDTO?> SelectFile()
+    {
+        var perm = await Permissions.RequestAsync<Permissions.StorageRead>();
+        if (perm != PermissionStatus.Granted) return null;
+
+        var result = await FilePicker.PickAsync();
+
+        return result is null ? null : await ConvertToDto(result, AttachedDTO.TypeAttached.Document);
+    }
+
+    public async Task<AttachedDTO?> SelectPosition()
+    {
+        var perm = await Permissions.RequestAsync<Permissions.LocationWhenInUse>();
+        if (perm != PermissionStatus.Granted) return null;
+
+        var loc = await Geolocation.GetLastKnownLocationAsync();
+        if (loc is null) return null;
+
+        return new AttachedDTO
+        {
+            Name = "Posizione attuale",
+            Lat = loc.Latitude,
+            Lng = loc.Longitude,
+            Type = AttachedDTO.TypeAttached.Position
+        };
+    }
+
+    private static async Task<AttachedDTO> ConvertToDto(FileResult file, AttachedDTO.TypeAttached type)
+    {
+        var stream = await file.OpenReadAsync();
+        using var ms = new MemoryStream();
+        await stream.CopyToAsync(ms);
+
+        return new AttachedDTO
+        {
+            Name = file.FileName,
+            Path = file.FullPath,
+            MimeType = file.ContentType,
+            DimensionBytes= ms.Length,
+            FileContent = ms.ToArray(),
+            Type = type
+        };
+    }
+}