public async Task <IActionResult> CreateGroupConversation(CreateGroupConversationAddressModel model)
{
var user = await GetKahlaUser();
model.GroupName = model.GroupName.Trim();
var exists = _dbContext.GroupConversations.Any(t => t.GroupName.ToLower() == model.GroupName.ToLower());
if (exists)
{
return(this.Protocol(ErrorType.NotEnoughResources, $"A group with name: {model.GroupName} was already exists!"));
}
var limitedDate = DateTime.UtcNow - new TimeSpan(1, 0, 0, 0);
var todayCreated = await _dbContext
.GroupConversations
.Where(t => t.OwnerId == user.Id)
.Where(t => t.ConversationCreateTime > limitedDate)
.CountAsync();
if (todayCreated > 4)
{
return(this.Protocol(ErrorType.NotEnoughResources, "You have created too many groups today. Try it tomorrow!"));
}
var createdGroup = await _dbContext.CreateGroup(model.GroupName, _configuration["GroupImagePath"], user.Id, model.JoinPassword);
var newRelationship = new UserGroupRelation
{
UserId = user.Id,
GroupId = createdGroup.Id,
ReadTimeStamp = DateTime.MinValue
};
await _dbContext.UserGroupRelations.AddAsync(newRelationship);
await _dbContext.SaveChangesAsync();
await _pusher.GroupJoinedEvent(user, createdGroup, null, 0);
return(Json(new AiurValue <int>(createdGroup.Id)
{
Code = ErrorType.Success,
Message = "You have successfully created a new group and joined it!"
}));
}
public async Task <IActionResult> JoinGroup([Required] string groupName, string joinPassword)
{
var user = await GetKahlaUser();
if (!user.EmailConfirmed)
{
return(this.Protocol(ErrorType.Unauthorized, "You are not allowed to join groups without confirming your email!"));
}
GroupConversation group;
lock (Obj)
{
group = _dbContext
.GroupConversations
.Include(t => t.Users)
.ThenInclude(t => t.User)
.SingleOrDefault(t => t.GroupName == groupName);
if (group == null)
{
return(this.Protocol(ErrorType.NotFound, $"We can not find a group with name: {groupName}!"));
}
if (group.HasPassword && group.JoinPassword != joinPassword?.Trim())
{
return(this.Protocol(ErrorType.WrongKey, "The group requires password and your password was not correct!"));
}
var joined = group.Users.Any(t => t.UserId == user.Id);
if (joined)
{
return(this.Protocol(ErrorType.HasDoneAlready, $"You have already joined the group: {groupName}!"));
}
// All checked and able to join him.
// Warning: Currently we do not have invitation system for invitation control is too complicated.
var newRelationship = new UserGroupRelation
{
UserId = user.Id,
GroupId = group.Id
};
_dbContext.UserGroupRelations.Add(newRelationship);
_dbContext.SaveChanges();
}
await _dbContext.Entry(user)
.Collection(t => t.HisDevices)
.LoadAsync();
var messagesCount = await _dbContext.Entry(group)
.Collection(t => t.Messages)
.Query()
.CountAsync();
var latestMessage = await _dbContext
.Messages
.Include(t => t.Sender)
.OrderByDescending(t => t.SendTime)
.FirstOrDefaultAsync();
await Task.WhenAll(
_pusher.GroupJoinedEvent(user, group, latestMessage, messagesCount),
group.ForEachUserAsync((eachUser, relation) => _pusher.NewMemberEvent(eachUser, user, group.Id))
);
return(Json(new AiurValue <int>(group.Id)
{
Code = ErrorType.Success,
Message = $"You have successfully joint the group: {groupName}!"
}));
}