Handle read-only calendars

Wino.Calendar.ViewModels/CalendarPageViewModel.cs

@@ -86,6 +86,7 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
         get
         {
             if (SelectedQuickEventAccountCalendar == null ||
+                SelectedQuickEventAccountCalendar.IsReadOnly ||
                 SelectedQuickEventDate == null ||
                 string.IsNullOrWhiteSpace(EventName) ||
                 string.IsNullOrWhiteSpace(SelectedStartTimeString) ||
@@ -204,6 +205,12 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
         if (DisplayDetailsCalendarItemViewModel?.CalendarItem == null)
             return;
 
+        if (DisplayDetailsCalendarItemViewModel.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         if (DisplayDetailsCalendarItemViewModel.CalendarItem.IsRecurringParent)
         {
             var confirmed = await _dialogService.ShowConfirmationDialogAsync(
@@ -460,6 +467,12 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
     [RelayCommand(AllowConcurrentExecutions = false, CanExecute = nameof(CanSaveQuickEvent))]
     private async Task SaveQuickEventAsync()
     {
+        if (SelectedQuickEventAccountCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         var startDate = IsAllDay ? SelectedQuickEventDate.Value.Date : QuickEventStartTime;
         var endDate = IsAllDay ? SelectedQuickEventDate.Value.Date.AddDays(1) : QuickEventEndTime;
         var composeResult = new CalendarEventComposeResult
@@ -553,6 +566,12 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
             return;
         }
 
+        if (calendarItem.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         var normalizedTargetStart = calendarItem.IsAllDayEvent
             ? targetStart.Date
             : targetStart;
@@ -1195,6 +1214,12 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
         if (targetItem == null)
             return;
 
+        if (targetItem.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         if (targetItem.IsRecurringParent)
         {
             var confirmed = await _dialogService.ShowConfirmationDialogAsync(
@@ -1221,6 +1246,12 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
         if (targetItem == null || targetItem.ShowAs == showAs)
             return;
 
+        if (targetItem.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         var originalItem = await _calendarService.GetCalendarItemAsync(targetItem.Id).ConfigureAwait(false);
         var attendees = await _calendarService.GetAttendeesAsync(targetItem.Id).ConfigureAwait(false);
 
@@ -1245,6 +1276,12 @@ public partial class CalendarPageViewModel : CalendarBaseViewModel,
         if (targetItem == null)
             return;
 
+        if (targetItem.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         var operation = responseStatus switch
         {
             CalendarItemStatus.Accepted => CalendarSynchronizerOperation.AcceptEvent,

Wino.Calendar.ViewModels/Data/AccountCalendarViewModel.cs

@@ -55,6 +55,12 @@ public partial class AccountCalendarViewModel : ObservableObject, IAccountCalend
         set => SetProperty(AccountCalendar.IsPrimary, value, AccountCalendar, (u, i) => u.IsPrimary = i);
     }
 
+    public bool IsReadOnly
+    {
+        get => AccountCalendar.IsReadOnly;
+        set => SetProperty(AccountCalendar.IsReadOnly, value, AccountCalendar, (u, i) => u.IsReadOnly = i);
+    }
+
     public bool IsSynchronizationEnabled
     {
         get => AccountCalendar.IsSynchronizationEnabled;

Wino.Calendar.ViewModels/EventDetailsPageViewModel.cs

@@ -440,6 +440,11 @@ public partial class EventDetailsPageViewModel : CalendarBaseViewModel
     private async Task SaveAsync()
     {
         if (CurrentEvent == null) return;
+        if (CurrentEvent.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
 
         try
         {
@@ -506,6 +511,11 @@ public partial class EventDetailsPageViewModel : CalendarBaseViewModel
     private async Task DeleteAsync()
     {
         if (CurrentEvent == null) return;
+        if (CurrentEvent.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
 
         // If the event is a master recurring event, ask for confirmation
         if (CurrentEvent.IsRecurringParent)
@@ -610,6 +620,11 @@ public partial class EventDetailsPageViewModel : CalendarBaseViewModel
     private async Task SendRsvpResponse(AttendeeStatus status)
     {
         if (CurrentEvent == null) return;
+        if (CurrentEvent.AssignedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
 
         try
         {

Wino.Core.Domain/Entities/Calendar/AccountCalendar.cs

@@ -16,6 +16,7 @@ public class AccountCalendar : IAccountCalendar
     public string SynchronizationDeltaToken { get; set; }
     public string Name { get; set; }
     public bool IsPrimary { get; set; }
+    public bool IsReadOnly { get; set; }
     public bool IsSynchronizationEnabled { get; set; } = true;
     public bool IsExtended { get; set; } = true;
     public CalendarItemShowAs DefaultShowAs { get; set; } = CalendarItemShowAs.Busy;

Wino.Core.Domain/Interfaces/IAccountCalendar.cs

@@ -10,6 +10,7 @@ public interface IAccountCalendar
     string TextColorHex { get; set; }
     string BackgroundColorHex { get; set; }
     bool IsPrimary { get; set; }
+    bool IsReadOnly { get; set; }
     bool IsSynchronizationEnabled { get; set; }
     Guid AccountId { get; set; }
     string RemoteCalendarId { get; set; }

Wino.Core.Domain/Interfaces/IMailDialogService.cs

@@ -16,6 +16,7 @@ namespace Wino.Core.Domain.Interfaces;
 
 public interface IMailDialogService : IDialogServiceBase
 {
+    void ShowReadOnlyCalendarMessage();
     Task<bool> ShowHardDeleteConfirmationAsync();
     Task HandleSystemFolderConfigurationDialogAsync(Guid accountId, IFolderService folderService);
 

Wino.Core.Domain/Translations/en_US/resources.json

@@ -213,6 +213,8 @@
     "CalendarEventDetails_Organizer": "Organizer",
     "CalendarEventDetails_People": "People",
     "CalendarEventDetails_ReadOnlyEvent": "Read-only event",
+    "CalendarReadOnly_Title": "Read-only calendar",
+    "CalendarReadOnly_Message": "You can't update this calendar or its events. This calendar is read-only.",
     "CalendarContextMenu_Respond": "Respond",
     "CalendarEventDetails_Reminder": "Reminder",
     "CalendarReminder_StartedHoursAgo": "Started {0} hours ago",

Wino.Core/Extensions/GoogleIntegratorExtensions.cs

@@ -145,6 +145,8 @@ public static class GoogleIntegratorExtensions
             Id = Guid.NewGuid(),
             TimeZone = calendarListEntry.TimeZone,
             IsPrimary = calendarListEntry.Primary.GetValueOrDefault(),
+            IsReadOnly = !string.Equals(calendarListEntry.AccessRole, "owner", StringComparison.OrdinalIgnoreCase)
+                         && !string.Equals(calendarListEntry.AccessRole, "writer", StringComparison.OrdinalIgnoreCase),
             IsSynchronizationEnabled = true,
         };
 

Wino.Core/Extensions/OutlookIntegratorExtensions.cs

@@ -190,6 +190,7 @@ public static class OutlookIntegratorExtensions
             Id = Guid.NewGuid(),
             RemoteCalendarId = outlookCalendar.Id,
             IsPrimary = outlookCalendar.IsDefaultCalendar.GetValueOrDefault(),
+            IsReadOnly = !outlookCalendar.CanEdit.GetValueOrDefault(true),
             Name = outlookCalendar.Name,
             IsSynchronizationEnabled = true,
             IsExtended = true,

Wino.Core/Services/WinoRequestDelegator.cs

@@ -165,6 +165,13 @@ public class WinoRequestDelegator : IWinoRequestDelegator
         if (calendarPreparationRequest == null)
             return;
 
+        var resolvedCalendar = await ResolveCalendarAsync(calendarPreparationRequest).ConfigureAwait(false);
+        if (resolvedCalendar?.IsReadOnly == true)
+        {
+            _dialogService.ShowReadOnlyCalendarMessage();
+            return;
+        }
+
         IRequestBase request = calendarPreparationRequest.Operation switch
         {
             CalendarSynchronizerOperation.CreateEvent => await CreateCalendarEventRequestAsync(calendarPreparationRequest).ConfigureAwait(false),
@@ -212,6 +219,25 @@ public class WinoRequestDelegator : IWinoRequestDelegator
         return new CreateCalendarEventRequest(composeResult, assignedCalendar);
     }
 
+    private async Task<AccountCalendar> ResolveCalendarAsync(CalendarOperationPreparationRequest calendarPreparationRequest)
+    {
+        if (calendarPreparationRequest.Operation == CalendarSynchronizerOperation.CreateEvent)
+        {
+            var calendarId = calendarPreparationRequest.ComposeResult?.CalendarId ?? Guid.Empty;
+            return calendarId == Guid.Empty
+                ? null
+                : await _calendarService.GetAccountCalendarAsync(calendarId).ConfigureAwait(false);
+        }
+
+        if (calendarPreparationRequest.CalendarItem?.AssignedCalendar is AccountCalendar assignedCalendar)
+            return assignedCalendar;
+
+        var fallbackCalendarId = calendarPreparationRequest.CalendarItem?.CalendarId ?? Guid.Empty;
+        return fallbackCalendarId == Guid.Empty
+            ? null
+            : await _calendarService.GetAccountCalendarAsync(fallbackCalendarId).ConfigureAwait(false);
+    }
+
     private IRequestBase CreateDeclineRequest(CalendarItem calendarItem, string responseMessage)
     {
         // For Outlook accounts, declined events are deleted by the server after synchronization.

Wino.Core/Synchronizers/GmailSynchronizer.cs

@@ -759,6 +759,8 @@ public class GmailSynchronizer : WinoSynchronizer<IClientServiceRequest, Message
                     existingLocalCalendar.BackgroundColorHex = resolvedColor;
                     existingLocalCalendar.TextColorHex = ColorHelpers.GetReadableTextColorHex(existingLocalCalendar.BackgroundColorHex);
                     existingLocalCalendar.IsPrimary = string.Equals(existingLocalCalendar.RemoteCalendarId, remotePrimaryCalendarId, StringComparison.OrdinalIgnoreCase);
+                    existingLocalCalendar.IsReadOnly = !string.Equals(calendar.AccessRole, "owner", StringComparison.OrdinalIgnoreCase)
+                                                      && !string.Equals(calendar.AccessRole, "writer", StringComparison.OrdinalIgnoreCase);
 
                     updatedCalendars.Add(existingLocalCalendar);
                 }
@@ -940,14 +942,17 @@ public class GmailSynchronizer : WinoSynchronizer<IClientServiceRequest, Message
         var remoteBackgroundColor = ResolveSynchronizedCalendarBackgroundColor(GetRemoteGmailCalendarBackgroundColor(calendarListEntry), accountCalendar);
         var remoteTextColor = ColorHelpers.GetReadableTextColorHex(remoteBackgroundColor);
         var remoteIsPrimary = string.Equals(calendarListEntry.Id, remotePrimaryCalendarId, StringComparison.OrdinalIgnoreCase);
+        var remoteIsReadOnly = !string.Equals(calendarListEntry.AccessRole, "owner", StringComparison.OrdinalIgnoreCase)
+                               && !string.Equals(calendarListEntry.AccessRole, "writer", StringComparison.OrdinalIgnoreCase);
 
         bool isNameChanged = !string.Equals(accountCalendar.Name, remoteCalendarName, StringComparison.OrdinalIgnoreCase);
         bool isTimeZoneChanged = !string.Equals(accountCalendar.TimeZone, remoteTimeZone, StringComparison.OrdinalIgnoreCase);
         bool isBackgroundColorChanged = !string.Equals(accountCalendar.BackgroundColorHex, remoteBackgroundColor, StringComparison.OrdinalIgnoreCase);
         bool isTextColorChanged = !string.Equals(accountCalendar.TextColorHex, remoteTextColor, StringComparison.OrdinalIgnoreCase);
         bool isPrimaryChanged = accountCalendar.IsPrimary != remoteIsPrimary;
+        bool isReadOnlyChanged = accountCalendar.IsReadOnly != remoteIsReadOnly;
 
-        return isNameChanged || isTimeZoneChanged || isBackgroundColorChanged || isTextColorChanged || isPrimaryChanged;
+        return isNameChanged || isTimeZoneChanged || isBackgroundColorChanged || isTextColorChanged || isPrimaryChanged || isReadOnlyChanged;
     }
 
     private static string GetRemoteGmailCalendarBackgroundColor(CalendarListEntry calendarListEntry)

Wino.Core/Synchronizers/OutlookSynchronizer.cs

@@ -2674,6 +2674,7 @@ public class OutlookSynchronizer : WinoSynchronizer<RequestInformation, Message,
                 {
                     existingLocalCalendar.Name = calendar.Name;
                     existingLocalCalendar.IsPrimary = string.Equals(existingLocalCalendar.RemoteCalendarId, remotePrimaryCalendarId, StringComparison.OrdinalIgnoreCase);
+                    existingLocalCalendar.IsReadOnly = !calendar.CanEdit.GetValueOrDefault(true);
                     existingLocalCalendar.BackgroundColorHex = resolvedColor;
                     existingLocalCalendar.TextColorHex = ColorHelpers.GetReadableTextColorHex(existingLocalCalendar.BackgroundColorHex);
 
@@ -2712,12 +2713,14 @@ public class OutlookSynchronizer : WinoSynchronizer<RequestInformation, Message,
         var remoteCalendarName = calendar.Name;
         var remoteBackgroundColor = ResolveSynchronizedCalendarBackgroundColor(GetRemoteOutlookCalendarBackgroundColor(calendar), accountCalendar);
         var remoteIsPrimary = string.Equals(calendar.Id, remotePrimaryCalendarId, StringComparison.OrdinalIgnoreCase);
+        var remoteIsReadOnly = !calendar.CanEdit.GetValueOrDefault(true);
 
         bool isNameChanged = !string.Equals(accountCalendar.Name, remoteCalendarName, StringComparison.OrdinalIgnoreCase);
         bool isBackgroundColorChanged = !string.Equals(accountCalendar.BackgroundColorHex, remoteBackgroundColor, StringComparison.OrdinalIgnoreCase);
         bool isPrimaryChanged = accountCalendar.IsPrimary != remoteIsPrimary;
+        bool isReadOnlyChanged = accountCalendar.IsReadOnly != remoteIsReadOnly;
 
-        return isNameChanged || isBackgroundColorChanged || isPrimaryChanged;
+        return isNameChanged || isBackgroundColorChanged || isPrimaryChanged || isReadOnlyChanged;
     }
 
     private static string GetRemoteOutlookCalendarBackgroundColor(Calendar calendar)

Wino.Mail.WinUI/Services/DialogService.cs

@@ -40,6 +40,12 @@ public class DialogService : DialogServiceBase, IMailDialogService
         _winoAccountDataSyncService = winoAccountDataSyncService;
     }
 
+    public void ShowReadOnlyCalendarMessage()
+        => InfoBarMessage(
+            Translator.CalendarReadOnly_Title,
+            Translator.CalendarReadOnly_Message,
+            InfoBarMessageType.Warning);
+
     public async Task<ICreateAccountAliasDialog> ShowCreateAccountAliasDialogAsync()
     {
         var createAccountAliasDialog = new CreateAccountAliasDialog()

Wino.Services/DatabaseService.cs

@@ -168,6 +168,13 @@ public class DatabaseService : IDatabaseService
                 .ConfigureAwait(false);
         }
 
+        if (!accountCalendarColumns.Any(c => c.Name == nameof(AccountCalendar.IsReadOnly)))
+        {
+            await Connection
+                .ExecuteAsync($"ALTER TABLE {nameof(AccountCalendar)} ADD COLUMN {nameof(AccountCalendar.IsReadOnly)} INTEGER NOT NULL DEFAULT 0")
+                .ConfigureAwait(false);
+        }
+
         await Connection.ExecuteAsync("DROP TABLE IF EXISTS WinoAccountAddOnCache").ConfigureAwait(false);
     }