Handle read-only calendars

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)