private async Task <Shared.DTO.Conversations.Chat> CreateGroup(
AppUser creator,
string chatImageUrl,
string chatName,
bool isPublic)
{
if (chatName.Length > MaxNameLength)
{
throw new InvalidDataException("Chat name was too long.");
}
try
{
var imageUrl = chatImageUrl ?? chatDataProvider.GetGroupPictureUrl();
var newChat = new ConversationDataModel
{
IsGroup = true,
Name = chatName,
FullImageUrl = imageUrl,
ThumbnailUrl = imageUrl,
IsPublic = isPublic
};
await conversationRepository.AddAsync(newChat);
await usersConversationsRepository.AddAsync(UsersConversationDataModel.Create(
creator.Id,
newChat));
var role = await rolesRepository.AddAsync(
ChatRoleDataModel.Create(newChat, creator.Id, ChatRole.Creator));
newChat.Roles = new List <ChatRoleDataModel>()
{
role
};
newChat.participants = new List <AppUser> {
creator
};
await unitOfWork.Commit();
return(newChat.ToChatDto(creator.Id));
}
catch (Exception e)
{
throw new InvalidDataException("Couldn't create group because of unexpected error.", e);
}
}
private async Task <Shared.DTO.Conversations.Chat> CreateDialog(
AppUser creator,
string dialogUserId,
bool isSecure,
string deviceId)
{
var user = await usersRepository.GetByIdAsync(creator.Id);
if (user == null)
{
throw new KeyNotFoundException("Wrong creatorId.");
}
try
{
//if this is a dialogue , find a user with whom to create chat
var secondDialogueUser = await usersRepository.GetByIdAsync(dialogUserId);
if (secondDialogueUser == null)
{
throw new InvalidDataException("Wrong dialog user Id.");
}
DhPublicKeyDataModel dhPublicKey = null;
if (isSecure)
{
dhPublicKey = await publicKeys.GetRandomKey();
}
var newChat = new ConversationDataModel
{
IsGroup = false,
IsSecure = isSecure,
PublicKeyId = dhPublicKey?.Id,
PublicKey = dhPublicKey,
DeviceId = deviceId
};
await conversationRepository.AddAsync(newChat);
await usersConversationsRepository.AddAsync(
UsersConversationDataModel.Create(dialogUserId, newChat)
);
await usersConversationsRepository.AddAsync(UsersConversationDataModel.Create(
creator.Id,
newChat,
deviceId));
newChat.participants = new List <AppUser> {
user, secondDialogueUser
};
await unitOfWork.Commit();
return(newChat.ToChatDto(creator.Id));
}
catch (Exception e)
{
throw new InvalidDataException("Couldn't create dialog. Probably there exists one already.", e);
}
}