/// <summary>
/// Accept a specific friend request
/// </summary>
/// <param name="id">The specific friend Id</param>
public async Task <User> AcceptAddFriendRequestAsync(string requestId)
{
var request = await RemoveFriendRequestByIdAsync(requestId);
var user = request?.ToUserId == CurrentUser.Id ? request.FromUser:null;
if (user == null)
{
return(null);
}
var chat = new Chat()
{
CreatedByUser = CurrentUser,
ChatType = ChatType.Personal
};
var uc = new List <UsersChats>()
{
new UsersChats {
Chat = chat, User = CurrentUser, Rools = UserChatRools.Admin
},
new UsersChats {
Chat = chat, User = user, Rools = UserChatRools.Admin
}
};
chat.UsersChats = uc;
(await Chats.AddAsync(chat)).State = EntityState.Added;
await UsersChats.AddRangeAsync(uc);
var friends = new Friends()
{
FromUser = user, ToUser = CurrentUser, Chat = chat
};
(await Friends.AddAsync(friends)).State = EntityState.Added;
await Db.SaveChangesAsync();
return(user);
}
private async Task <Chat> CreateChatAsync(ChatType type, User[] withUsers = null, Chat chat = null)
{
if (withUsers?.Length == 1 && type == ChatType.Personal)
{
var existChat = await GetChatWithAsync(withUsers.First().Id);
if (existChat != null)
{
return(existChat);
}
}
chat = new Chat()
{
Name = chat?.Name,
CreatedByUser = CurrentUser,
ChatType = chat?.ChatType ?? type
};
bool isCurrentUserAdded = false;
if (withUsers != null)
{
foreach (var user in withUsers)
{
if (withUsers.Length == 1)
{
chat.UsersChats.Add(new UsersChats()
{
Chat = chat, User = user, Rools = UserChatRools.Admin
});
break;
}
isCurrentUserAdded = (user.Id == CurrentUser.Id);
if (isCurrentUserAdded)
{
chat.UsersChats.Add(new UsersChats()
{
Chat = chat, User = user, Rools = UserChatRools.Admin
});
}
chat.UsersChats.Add(new UsersChats()
{
Chat = chat, User = user, Rools = UserChatRools.User
});
}
}
if (!isCurrentUserAdded)
{
chat.UsersChats.Add(new UsersChats()
{
Chat = chat, User = CurrentUser, Rools = UserChatRools.Admin
});
}
var entityEntryChat = await Chats.AddAsync(chat);
entityEntryChat.State = EntityState.Added;
UsersChats.AddRange(chat.UsersChats);
//if the problem not solved must separate the UsersChats collection and add it later after saveChages for adding the chat
// be cause the UsersChats elements has a references to the chat
await Db.SaveChangesAsync();
return(entityEntryChat.Entity);
}