public async Task <string> DeleteConversation(string id)
{
Conversation exist = await conversationRepository.GetByIdAsync(ObjectId.Parse(id));
if (exist != null)
{
//delete conversation
await conversationRepository.DeleteAsync(ObjectId.Parse(id));
//Delete notification group
FilterDefinition <ClientGroup> finder = Builders <ClientGroup> .Filter.Eq("name", id);
ClientGroup clientGroup = await clientGroupRepository.FindAsync(finder);
if (clientGroup != null)
{
await clientGroupRepository.DeleteAsync(clientGroup.Id);
}
return("Xóa cuộc trò chuyện thành công");
}
else
{
throw new Exception("Đã có lỗi xảy ra");
}
}
/// <summary>
/// Should not be used frequently as it's quiet expensive.
/// </summary>
/// <param name="userId"></param>
/// <param name="whoRemovedId"></param>
/// <param name="chatId"></param>
/// <param name="IsSelf"></param>
/// <returns></returns>
public async Task RemoveUserFromConversation(string userId, string whoRemovedId, int chatId, bool IsSelf)
{
var conversation = await conversationRepository.GetByIdAsync(chatId);
if (conversation == null)
{
throw new InvalidDataException("Wrong conversation.");
}
var userConversation = await usersConversationsRepository.GetByIdAsync(userId, chatId);
if (userConversation == null)
{
throw new InvalidDataException("User is not a part of this conversation.");
}
var userRole = await rolesRepository.GetByIdAsync(chatId, whoRemovedId);
if (!IsSelf)
{
if (userRole.RoleId != ChatRole.Moderator && userRole.RoleId != ChatRole.Creator)
{
throw new InvalidDataException("Only creator / moderator can remove users in group.");
}
}
await usersConversationsRepository.DeleteAsync(userConversation);
if ((await usersConversationsRepository.CountAsync(new GetParticipantsSpec(conversation.Id)))
.Equals(0))
{
await conversationRepository.DeleteAsync(conversation);
}
await rolesRepository.DeleteAsync(await rolesRepository.GetByIdAsync(chatId, userId));
await unitOfWork.Commit();
}