public async Task <IActionResult> AssignProject([FromRoute] int groupId, [FromQuery][Required] int?projectId)
        {
            if (!ModelState.IsValid)
            {
                return(BadRequest(ModelState));
            }
            Group group = await _groupService.GetByIdAsync(groupId);

            if (group == null)
            {
                return(BadRequest("Group not found"));
            }
            Project project = await _projectService.GetByIdAsync(projectId ?? 0);

            if (project == null)
            {
                return(BadRequest("Project not found"));
            }
            if (!project.Approved)
            {
                return(BadRequest("Approve the project first"));
            }
            if (project.AssignedGroup != null)
            {
                return(BadRequest("Project is already assigned to a group. Please unassign the project first."));
            }
            if (group.FinalProjectAssigned != null)
            {
                return(BadRequest("Group already has a project assigned. Please unassign the project first."));
            }
            await _groupService.AssignProjectAsync(project, group, Int32.Parse(User.Identity.Name));

            return(Ok());
        }