first commit

Interfaces/IGymRoleRepository.cs

@@ -0,0 +1,20 @@
+using Fitness_core_BE.Models;
+
+namespace Fitness_core_BE.Interfaces
+{
+    public interface IGymRoleRepository
+    {
+        Task<List<GymRole>> GetRolesByClientId(Guid clientId);
+        Task<GymRole?> GetRoleById(Guid gymRoleId);
+        Task<GymRole> CreateRole(GymRole role);
+        Task<GymRole> UpdateRole(GymRole role);
+        Task DeleteRole(GymRole role);
+        Task ReplacePermissions(Guid gymRoleId, IEnumerable<string> navKeys);
+        Task<List<string>> GetPermissionKeys(Guid gymRoleId);
+
+        // Returns false if the staff member doesn't exist or doesn't belong to clientId (tenant isolation),
+        // or if gymRoleId is supplied but doesn't belong to clientId either.
+        Task<bool> AssignStaffRole(Guid staffId, Guid clientId, Guid? gymRoleId);
+
+    }
+}