private void btnLogin_Click(object sender, RoutedEventArgs e)
{
//Check if the input from the user is correct
//if not - show message and clear the input fields
if (!MainWindow.mainLibrary.LibraryUsers.CheckUser(txtUserName.Text, pswPassword.Password))
{
GuiMsgs.LoginFailed();
//Cleaning the Input fields after for fresh input from the User
txtUserName.Text = pswPassword.Password = string.Empty;
//Focusing the keyboard into username field
txtUserName.Focus();
}
//if the input is correct - insert the user data
//to the current user variable and show the main window
else
{
MainWindow.mainLibrary.LibraryUsers.CurrentUser =
MainWindow.mainLibrary.LibraryUsers.GetCurrentUser(txtUserName.Text, pswPassword.Password);
ShowMain = true;
this.Close();
}
}
private void btnSaveEdit_Click(object sender, RoutedEventArgs e)
{
///////////////////////// VALIDATION OF THE USER INPUT //////////////////
if (!Validity.StringOK(txtName.Text))
{
GuiMsgs.Warning("Please Enter User Name");
}
else if (!Validity.StringOK(txtPassword.Text))
{
GuiMsgs.Warning("Please Enter Password");
}
else if (cmbType.SelectedIndex < 0)
{
GuiMsgs.Warning("Please select the User Type");
}
///////////////////////// VALIDATION OF THE USER INPUT //////////////////
else //if all fields are OK
{
switch (EditMode)
{
case true: //updating existing user
UserToAddOrEdit.Name = txtName.Text;
UserToAddOrEdit.Password = txtPassword.Text;
UserToAddOrEdit.Type = (User.eUserType)cmbType.SelectedItem;
this.Close();
break;
case false: //adding new user
UserToAddOrEdit = new User(txtName.Text, txtPassword.Text, (User.eUserType)cmbType.SelectedItem);
MainWindow.mainLibrary.LibraryUsers.Users.Add(UserToAddOrEdit);
this.Close();
break;
}
}
}
//Ctor of Login Dialog
public LoginWindow()
{
InitializeComponent();
//Try open the Data File and read the Info from it.
try
{
//if there's file at all
if (File.Exists(DBData.FilePath))
{
MainWindow.mainLibrary = MainWindow.mainLibrary.GetBLData();
}
//if it's the first initiation of the program - because there's no data file
else
{
GuiMsgs.FirstLogin();
}
}
//catching the possible Exception and showing to the user with warning sign
catch (Exception ex)
{
GuiMsgs.Warning(ex.Message);
}
//Disable the login button until the user enters some characters
//in both fields
GuiChanges.Disable(btnLogin);
txtUserName.HorizontalContentAlignment =
pswPassword.HorizontalContentAlignment = HorizontalAlignment.Center;
pswPassword.PasswordChar = '*';
//Focusing the keyboard into username field
txtUserName.Focus();
}
//Search for Copies of the Item by relevant parameters
//Excluding the ISBN, which is unique for each Item
private void btnQuantity_Click(object sender, RoutedEventArgs e)
{
//Get the Item to search for from the DataGrid
AbstractItem item = (AbstractItem)dataLib.SelectedItem;
//Show the result of the Message Box
GuiMsgs.Info($"The quantity of this {item.ItemType} is {mainLibrary.ItemQuantity(item)}");
}
private void btnAdd_Click(object sender, RoutedEventArgs e)
{
///////////////////////// VALIDATION OF THE USER INPUT //////////////////
if (CurrentItem == ItemType.Default)
{
GuiMsgs.Warning
("Please Choose the Item Type:" +
"\nBook or Journal!");
}
//if Base category is choosen
else if (cmbBaseCat.SelectedIndex < 0)
{
GuiMsgs.Warning("Please choose the Base Category!");
}
else if (!Validity.StringOK(txtName.Text))
{
GuiMsgs.Warning("Please Enter The Name of The Item!");
}
else if (dtPick.SelectedDate == null)
{
GuiMsgs.Warning("Please Select a Publishing Date!");
}
else
{
switch (CurrentItem)
{
case ItemType.Book:
if (!Validity.StringOK(txtAuthor.Text))
{
GuiMsgs.Warning("Please Enter The Author Name!");
}
else
{
CreateItem();
this.Close();
}
break;
case ItemType.Journal:
if (!Validity.StringOK(txtIssue.Text))
{
GuiMsgs.Warning("Please Enter The Issue Number!");
}
else if (!Validity.PositiveInteger(txtIssue.Text))
{
GuiMsgs.Warning("Please Enter the valid Issue Number!");
}
else //If All the fields are OK - create new Item and add him into the Library
{
CreateItem();
this.Close();
}
break;
}
}
///////////////////////// VALIDATION OF THE USER INPUT //////////////////
}
//Deleting user
private void btnDelete_Click(object sender, RoutedEventArgs e)
{
if (!IsCurrentUser()) // So current user ca't be deleted
{
//Warning dialog - last chance to regret and if user approves -
//deleting the Item form the Library
if (GuiMsgs.AreYouSure($"Are You Sure that\nYou want to delete the\n'{((User)dataUsers.SelectedItem).Name}'\nUser?"))
{
//Deletion
MainWindow.mainLibrary.LibraryUsers.Users.Remove((User)dataUsers.SelectedItem);
//Refresh the Grid after the change was made to the Item collection
Refresh();
}
}
}
/// <summary>
/// Validation method that checks if all the fields are valid
/// before Update the Current Item
/// </summary>
/// <returns>true if the fields are OK and false if opposite</returns>
private bool FieldsValidForUpdate()
{
if (!Validity.StringOK(txtName.Text))
{
GuiMsgs.Warning("Please enter the Item Name!");
return(false);
}
else if (dtPick.SelectedDate == null)
{
GuiMsgs.Warning("Please Select the Publishing Date!");
return(false);
}
else
{
switch (CurrentItem.ItemType)
{
case "Book":
if (!Validity.StringOK(txtAuthor.Text))
{
GuiMsgs.Warning("Please Enter the Author Name!");
return(false);
}
break;
case "Journal":
if (!Validity.StringOK(txtIssue.Text))
{
GuiMsgs.Warning("Please Enter The Issue Number!");
return(false);
}
else if (!Validity.PositiveInteger(txtIssue.Text))
{
GuiMsgs.Warning("Please Enter the valid Issue Number!");
return(false);
}
break;
}
}
return(true);
}
//Delete Button Clicked Event-
//Ask the User for approval and if granted,
//delete the current item from the Library
private void btnDelete_Click(object sender, RoutedEventArgs e)
{
//Temporary variable for the Selected Item
var currentItem = (AbstractItem)dataLib.SelectedItem;
//Last chance to regret before deleting the choosed Item
if (GuiMsgs.AreYouSure(
$"Are You Positive that You want to delete this {currentItem.ItemType}?" +
"\n(There's no way You can undo this action!)"))
{
//If Uses Approves the deletion - remove the Item from the Library
mainLibrary.Items.Remove(currentItem);
//Refresh DataGrid because changes was made
RefreshDataGrid();
//Cancel the search because changes was made
UntickSearchOptions();
}
}
/// <summary>
/// Check if User from DataGrid is the current User
/// </summary>
/// <returns>If the User is current - true, opposite - false</returns>
private bool IsCurrentUser()
{
//if the user is current - prevent deletion or editing
if (MainWindow.mainLibrary.LibraryUsers.CurrentUser.Name == ((User)dataUsers.SelectedItem).Name)
{
GuiMsgs.Info("Deletion or Editing of Current user is\nFORBIDDEN!");
return(true);
}
//if the user is main user - also prevent deletion or editing
if (((User)dataUsers.SelectedItem).Name == "BigBoss")
{
GuiMsgs.Info("Deletion or Editing of the 'Big Boss' is\nFORBIDDEN!\nThis is the Main User,\nSo It's Impossible to Delete him");
return(true);
}
else
{
return(false);
}
}
