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UserManager.cs
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UserManager.cs
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using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
namespace TheGoodRecipe
{
class UserManager : UserStorageManager
{
private static UserManager instance;
public static UserManager getInstance()
{
if (instance == null)
instance = new UserManager();
return instance;
}
private static string USER_FILENAME = "users.txt";
private List<User> allUsers;
private UserState currentState;
private User currentUser;
private UserState loggedIn;
private UserState loggedOut;
private UserManager()
{
loggedIn = new LoggedInState(this);
loggedOut = new LoggedOutState(this);
currentState = loggedOut;
allUsers = new List<User>();
}
public User getCurrentUser() { return currentUser; }
public void setCurrentUser(string username)
{
for(int i=0; i<allUsers.Count; i++)
{
if (allUsers[i].getUserName().Equals(username))
{
currentUser = allUsers[i];
return;
}
}
}
public void clearCurrentUser()
{
currentUser = null;
}
public void addUser(User u)
{
allUsers.Add(u);
}
public User getUser(string username)
{
foreach (User u in allUsers)
{
if (u.getUserName().Equals(username))
{
return u;
}
}
return null;
}
public void setState(UserState us) { currentState = us; }
public UserState getState() { return currentState; }
public bool IsLoogedin()
{
return (currentState == loggedIn);
}
public UserState getLoggedInState() { return loggedIn; }
public UserState getLoggedOutState() { return loggedOut; }
public void login(string username, string pass)
{
currentState.login( username, pass);
}
public void logout()
{
currentState.logout();
}
public void postReview(RecipeReviewStorageManager rm, RecipeReview rv)
{
currentState.postReview(rm,rv);
}
public void signUp(string username, string name, string pass)
{
currentState.signUp(username, name, pass);
}
public void readUsers()
{
allUsers = new List<User>();
FileStream f = new FileStream(USER_FILENAME, FileMode.OpenOrCreate);
StreamReader sr = new StreamReader(f);
while (sr.Peek() >-1)
{
string l = sr.ReadLine();
string[] vals = l.Split(',');
allUsers.Add(new User(vals[0], vals[1], vals[2]));
}
sr.Close();
f.Close();
}
public void saveUsers()
{
FileStream f = new FileStream(USER_FILENAME, FileMode.Truncate);
StreamWriter sw = new StreamWriter(f);
foreach(User u in allUsers)
{
sw.WriteLine(u.getUserName() + "," + u.getName() + "," + u.getPassword());
}
sw.Close();
f.Close();
}
}
}