/// <summary>
/// Add a user to contacts list
/// </summary>
/// <param name="_contactsUsername">requested username</param>
/// <param name="_loggedInUser">logged in username</param>
/// <returns></returns>
public string AddNewContact(string _contactsUsername, string _loggedInUser)
{
try
{
// Check if the given username exists
var check1 = context.Users.FirstOrDefault(user => user.Username.Equals(_contactsUsername));
if (check1 == null)
{
return("User Does Not Exist");
}
var check2 = context.Contacts.FirstOrDefault(user => user.Username.Equals(_loggedInUser) && user.Contact.Equals(_contactsUsername));
if (check2 != null)
{
return("Already in contact list");
}
var loggedInUser = context.Users.FirstOrDefault(user => user.Username.Equals(_loggedInUser));
context.Contacts.Add(new Contacts(_loggedInUser, check1.Username));
context.Contacts.Add(new Contacts(check1.Username, _loggedInUser));
context.SaveChanges();
return(String.Format("{0} added to contacts", _contactsUsername));
}
catch (Exception ex)
{
return(ex.Message);
}
}
/// <summary>
/// Removes all the messages between two users
/// </summary>
/// <param name="firstUser"></param>
/// <param name="secondUser"></param>
public string RemoveAllMessage(string firstUser, string secondUser)
{
try
{
var messages = context.Messages.Where(message => (message.Sender.Equals(firstUser) && message.Reciever.Equals(secondUser)) ||
(message.Sender.Equals(secondUser) && message.Reciever.Equals(firstUser)));
if (messages == null)
{
return("User and messages removed");
}
foreach (Message m in messages)
{
context.Messages.Remove(m);
}
context.SaveChanges();
return("User and messages removed");
}
catch (Exception e)
{
return(e.Message);
}
}