Initial commit

PcgsInvUi/ViewModels/CoinListViewModel.cs

@@ -0,0 +1,24 @@
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using PcgsInvUi.Models;
+using ReactiveUI;
+
+namespace PcgsInvUi.ViewModels;
+
+public class CoinListViewModel : ViewModelBase
+{
+    public ObservableCollection<Coin> CoinCollection { get; set; }
+    private float _totalValue;
+    public float TotalValue
+    {
+        get => _totalValue;
+        set => this.RaiseAndSetIfChanged(ref _totalValue, value);
+    }
+    public Coin? SelectedCoin { get; set; }
+    
+    public CoinListViewModel(IEnumerable<Coin> items)
+    {
+        CoinCollection = new ObservableCollection<Coin>(items);
+        TotalValue = 0;
+    }
+}

PcgsInvUi/ViewModels/MainWindowViewModel.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Reactive.Linq;
+using PcgsInvUi.Models;
+using PcgsInvUi.Services;
+using ReactiveUI;
+
+namespace PcgsInvUi.ViewModels;
+
+public class MainWindowViewModel : ViewModelBase
+{
+    public CoinListViewModel List { get; }
+    private ViewModelBase _content;
+    
+    public MainWindowViewModel(CoinCollection coins)
+    {
+        List = new CoinListViewModel(coins.GetItems());
+        Content = List;
+    }
+    
+    public ViewModelBase Content
+    {
+        get => _content;
+        private set => this.RaiseAndSetIfChanged(ref _content, value);
+    }
+
+    public void AddItem()
+    {
+        Console.WriteLine("You hit the button!");
+        var newViewModel = new NewViewModel();
+
+        Observable.Merge(
+                newViewModel.OkCommand,
+                newViewModel.CancelCommand.Select(_ => (Coin?)null))
+            .Take(1)
+            .Subscribe(model =>
+            {
+                if (model != null)
+                    List.CoinCollection.Add(model);
+
+                Content = List;
+            });
+        
+        Content = newViewModel;
+    }
+}

PcgsInvUi/ViewModels/NewViewModel.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Reactive;
+using PcgsInvUi.Models;
+using ReactiveUI;
+
+namespace PcgsInvUi.ViewModels;
+
+public class NewViewModel : ViewModelBase
+{
+    private string _pcgsNumber;
+    private string _grade;
+    private string _quantity;
+    
+    public string PcgsNumber
+    {
+        get => _pcgsNumber;
+        set => this.RaiseAndSetIfChanged(ref _pcgsNumber, value);
+    }
+    public string Grade
+    {
+        get => _grade;
+        set => this.RaiseAndSetIfChanged(ref _grade, value);
+    }
+    public string Quantity
+    {
+        get => _quantity;
+        set => this.RaiseAndSetIfChanged(ref _quantity, value);
+    }
+    
+    public NewViewModel()
+    {
+        var okEnabled = this.WhenAnyValue(
+            x => x.PcgsNumber,
+            x => !string.IsNullOrWhiteSpace(x));
+
+        OkCommand = ReactiveCommand.Create(
+            () => new Coin { PcgsNumber = Int32.Parse(PcgsNumber) },
+            okEnabled);
+        CancelCommand = ReactiveCommand.Create(() => { });
+    }
+
+    public ReactiveCommand<Unit, Coin> OkCommand { get; }
+    public ReactiveCommand<Unit, Unit> CancelCommand { get; }
+
+}

PcgsInvUi/ViewModels/ViewModelBase.cs

@@ -0,0 +1,7 @@
+using ReactiveUI;
+
+namespace PcgsInvUi.ViewModels;
+
+public class ViewModelBase : ReactiveObject
+{
+}