private void btnUndo_Click(object sender, RoutedEventArgs e)
{
if (AllData.ChangeLog.Count == 0)
return;
ItineraryChange lastChange = AllData.ChangeLog.Pop();
ChangeUndoer.Undo(AllData.ItineraryBuilder, lastChange);
this.UpdateAllLists();
}
public void Run()
{
CsvReader reader = new CsvReader(@".\Resources\PopByLargest.csv");
this.AllCountries = reader.ReadAllCountries().OrderBy(x => x.Name).ToList();
var dict = AllCountries.ToDictionary(x => x.Code);
this.AllCountriesByKey = dict;
Console.WriteLine("-----------------ADD-------------------------");
Country selectedCountry = AllCountries[4];
Country selectedCountry1 = AllCountries[14];
Country selectedCountry2 = AllCountries[24];
Country selectedCountry3 = AllCountries[34];
//Add at the end of LL
this.ItineraryBuilder.AddLast(selectedCountry);
var change = new ItineraryChange(ChangeType.Append, this.ItineraryBuilder.Count, selectedCountry);
this.ChangeLog.Push(change);
this.ItineraryBuilder.AddLast(selectedCountry1);
var change1 = new ItineraryChange(ChangeType.Append, this.ItineraryBuilder.Count, selectedCountry1);
this.ChangeLog.Push(change1);
this.ItineraryBuilder.AddLast(selectedCountry2);
var change2 = new ItineraryChange(ChangeType.Append, this.ItineraryBuilder.Count, selectedCountry2);
this.ChangeLog.Push(change2);
this.ItineraryBuilder.AddLast(selectedCountry3);
var change3 = new ItineraryChange(ChangeType.Append, this.ItineraryBuilder.Count, selectedCountry3);
this.ChangeLog.Push(change3);
foreach (var item in this.ItineraryBuilder)
{
Console.WriteLine($"{item.Code}:{item.Name}");
}
Console.WriteLine("---stack----");
foreach (var item in ChangeLog)
{
Console.WriteLine(item);
}
Console.WriteLine("-----------------REMOVE-------------------------");
int selectedIndex = 1;
var nodeToRemove = this.ItineraryBuilder.GetNthNode(selectedIndex);
this.ItineraryBuilder.Remove(nodeToRemove);
var change4 = new ItineraryChange(ChangeType.Remove, selectedIndex, nodeToRemove.Value);
this.ChangeLog.Push(change4);
foreach (var item in this.ItineraryBuilder)
{
Console.WriteLine($"{item.Code}:{item.Name}");
}
Console.WriteLine("---stack----");
foreach (var item in ChangeLog)
{
Console.WriteLine(item);
}
Console.WriteLine("----------------------INSERT------------------------------");
int selectedIndex1 = 1;
this.AllCountriesByKey.TryGetValue(new CountryCode("USA"), out Country result);
var insertBeforeNode = this.ItineraryBuilder.GetNthNode(selectedIndex1);
this.ItineraryBuilder.AddBefore(insertBeforeNode, result);
var change5 = new ItineraryChange(ChangeType.Insert, selectedIndex1, insertBeforeNode.Value);
this.ChangeLog.Push(change5);
foreach (var item in this.ItineraryBuilder)
{
Console.WriteLine($"{item.Code}:{item.Name}");
}
Console.WriteLine("---stack----");
foreach (var item in ChangeLog)
{
Console.WriteLine(item);
}
Console.WriteLine("---------------------UNDO-------------------------------");
ItineraryChange lastChange = this.ChangeLog.Pop();
ChangeUndoer.Undo(this.ItineraryBuilder, lastChange);
ItineraryChange lastChange2 = this.ChangeLog.Pop();
ChangeUndoer.Undo(this.ItineraryBuilder, lastChange2);
ItineraryChange lastChange3 = this.ChangeLog.Pop();
ChangeUndoer.Undo(this.ItineraryBuilder, lastChange3);
ChangeUndoer.Undo(this.ItineraryBuilder, this.ChangeLog.Pop());
foreach (var item in this.ItineraryBuilder)
{
Console.WriteLine($"{item.Code}:{item.Name}");
}
Console.WriteLine("---stack----");
foreach (var item in ChangeLog)
{
Console.WriteLine(item);
}
}