public async Task <Conversation> Create(CreateConversationModel model)
{
var response = await _restService.PostAsync("/api/conversations", JsonConvert.SerializeObject(model));
var data = await response.Content.ReadAsStringAsync();
return(JsonConvert.DeserializeObject <Conversation>(data));
}
public async Task <IActionResult> CreatedConversation([FromBody] CreateConversationModel model)
{
User sender = await FindByEmailAsync(model.SenderEmail);
User receiver = await FindByEmailAsync(model.ReceiverEmail);
var succeeded = _messageService.CreateNewConversation(sender, receiver);
if (succeeded)
{
_logger.LogInformation($"CreatedConversation - Conversation started between {model.SenderEmail} and {model.ReceiverEmail}");
return(Ok());
}
_logger.LogError($"CreatedConversation - Conversation failed to start between {model.SenderEmail} and {model.ReceiverEmail}");
return(BadRequest());
}
public async Task <IActionResult> CreateConversationAsync( )
{
User loggedInUser = await this.userManager.GetUserAsync(base.User);
IList <User> users = await this.context.Users.Where(user => user.Id != loggedInUser.Id).ToListAsync();
UserSelection[] userSelections = users.Select(
user => new UserSelection( )
{
label = user.UserName + ", " + user.firstName + ", " + user.lastName,
id = user.Id,
selected = false
}
).ToArray( );
CreateConversationModel model = new CreateConversationModel()
{
userSelectionsList = userSelections
};
return(View(model));
}
public async Task <IActionResult> CreateConversation(CreateConversationModel model)
{
if (!ModelState.IsValid)
{
return(View(model));
}
String name = model.name;
// Proveramo ima li i jednog selectovanog usera
bool userSelected = model.userSelectionsList.Select(item => item.selected).Aggregate(
(result, item) => result | item
);
if (!userSelected)
{
ModelState.AddModelError("", "No user selected!");
return(View(model));
}
/* Provera da li vec postoji cet sa selectovanim korisnicima */
// Dohvatam ulogovanog korisnika
User loggedInUser = await this.userManager.GetUserAsync(base.User);
// Dojvatam selectovane usere i appendujem id ulogovanog usera
string[] selectedIds = model.userSelectionsList.Where(item => item.selected == true)
.Select(item => item.id)
.Append(loggedInUser.Id)
.ToArray( );
bool conversationExists = this.context.userConversations
// da li se item.userId nalazi u kolekciji selektovanih korisnika
.Where(item => selectedIds.Contains(item.userId))
// grupisem userConversations tabelu po razgovorima
.GroupBy(item => item.conversationId)
// iz rezultata izvlacim za svaku grupu broj redova sa datom grupom
.Select(group => new { group.Key, count = group.Count() })
// trebaju mi samo razgovori sa onoliko korisnika koliko je selectovano idjeva
.Where(item => item.count == selectedIds.Count( ))
// postoji li koji takav
.Any( );
if (conversationExists)
{
ModelState.AddModelError("", "Selected users are already in conversations");
return(View(model));
}
/* Kraj provere da li vec postoji cet sa selectovanim korisnicima */
// pravim novu konverzaciju i inicijalizujem je potrebnim podacima
Conversation conversation = new Conversation( )
{
name = model.name,
creationDate = DateTime.Now,
userConversationList = new List <UserConversation> ( )
};
// dodajem idjeve u conversation.UserConversationList
foreach (string id in selectedIds)
{
conversation.userConversationList.Add(
new UserConversation( )
{
userId = id
}
);
}
await this.context.conversations.AddAsync(conversation);
await this.context.SaveChangesAsync( );
return(RedirectToAction(nameof(ChatController.Index)));
}
