public async Task <string> LogIn(string username, string password)
{
DataUser u = await usersDAL.GetDataUser(username);
if (u != null)
{
if (u.password.Equals(EncryptString(key, password)))
{
if (u.IsLoggedin)
{
return("user is already logged in");
}
else
{
u.IsLoggedin = true;
await ProxyMarketContext.Instance.saveChanges();
return("success");
}
}
else
{
return("the password doesn't match username: "******"username: "******" doesn't exist in the system");
}
public async Task <bool> isLoggedIn(string username)
{
DataUser u = await usersDAL.GetDataUser(username);
if (u != null)
{
return(false);
}
return(u.IsLoggedin);
}
private async Task <Result <String> > getUserPhone(string username)
{
DataUser u = await usersDAL.GetDataUser(username);
if (u != null)
{
return(new Result <string>(u.phone, false, ""));
}
return(new Result <string>(null, true, "username doesn't exist"));
}
public async Task <bool> Logout(string username)
{
if (username == null)
{
return(false);
}
DataUser u = await usersDAL.GetDataUser(username);
if (u != null)
{
if (u.IsLoggedin == false)
{
return(false);
}
u.IsLoggedin = false;
await ProxyMarketContext.Instance.saveChanges();
return(true);
}
return(false);
}
//for unit test
public async Task <bool> DeleteUser(string username)
{
DataUser u = null;
return(await usersDAL.RemoveDataUser(username));
}