Add calendar integrations and collaboration updates

backend/src/Socialize.Api/Modules/CalendarIntegrations/Services/CalendarSourceRules.cs

@@ -0,0 +1,51 @@
+using Socialize.Api.Modules.CalendarIntegrations.Data;
+
+namespace Socialize.Api.Modules.CalendarIntegrations.Services;
+
+public static class CalendarSourceRules
+{
+    public static readonly string[] SupportedScopes =
+    [
+        CalendarSourceScopes.Organization,
+        CalendarSourceScopes.Workspace,
+        CalendarSourceScopes.User,
+    ];
+
+    public static readonly string[] SupportedInheritanceModes =
+    [
+        CalendarSourceInheritanceModes.Required,
+        CalendarSourceInheritanceModes.Optional,
+    ];
+
+    public static bool IsSupportedScope(string? scope)
+    {
+        return SupportedScopes.Contains(scope?.Trim(), StringComparer.Ordinal);
+    }
+
+    public static bool IsSupportedInheritanceMode(string? inheritanceMode)
+    {
+        return SupportedInheritanceModes.Contains(inheritanceMode?.Trim(), StringComparer.Ordinal);
+    }
+
+    public static bool IsInheritedOrganizationSource(CalendarSource source, Guid workspaceOrganizationId)
+    {
+        return source.Scope == CalendarSourceScopes.Organization &&
+               source.OrganizationId == workspaceOrganizationId;
+    }
+
+    public static bool CanManageScope(
+        string scope,
+        bool canManageOrganizationCalendars,
+        bool canManageWorkspaceCalendars,
+        Guid currentUserId,
+        Guid? sourceUserId)
+    {
+        return scope switch
+        {
+            CalendarSourceScopes.Organization => canManageOrganizationCalendars,
+            CalendarSourceScopes.Workspace => canManageWorkspaceCalendars,
+            CalendarSourceScopes.User => sourceUserId == currentUserId,
+            _ => false,
+        };
+    }
+}