public async Task <bool> SetModerator(string groupId, string userId, bool isModerator = true)
{
var currentUser = await profileService.GetCurrentUser();
var group = await database.GroupRepository.FindById(groupId) ??
throw new EntityNotFoundException("Group not found");
if (currentUser.Id != group.AdminId)
{
throw new NoPermissionsException("You are not allowed to manage this group");
}
var member = GetMember(userId, group);
if (!member.IsAccepted)
{
throw new NoPermissionsException("This user is not member of this group");
}
member.SetIsModerator(isModerator);
if (await database.Complete())
{
await notifier.Push(
isModerator
?NotificationMessages.GroupModeratorGrantedNotification(group.Name)
: NotificationMessages.GroupModeratorRevokedNotification(group.Name),
userId,
isModerator?NotificationType.GroupModeratorGranted : NotificationType.GroupModeratorRevoked);
return(true);
}
return(false);
}