Log errors when a plugin's control throws exceptions instead of just letting WPF die.

Also add some new types for Essentials

Torch.Server/Initializer.cs

@@ -55,6 +55,15 @@ quit";
             AppDomain.CurrentDomain.UnhandledException += HandleException;
 #endif
 
+#if DEBUG
+            //enables logging debug messages when built in debug mode. Amazing.
+            LogManager.Configuration.AddRule(LogLevel.Debug, LogLevel.Debug, "main");
+            LogManager.Configuration.AddRule(LogLevel.Debug, LogLevel.Debug, "console");
+            LogManager.Configuration.AddRule(LogLevel.Debug, LogLevel.Debug, "wpf");
+            LogManager.ReconfigExistingLoggers();
+            Log.Debug("Debug logging enabled.");
+#endif
+
             // This is what happens when Keen is bad and puts extensions into the System namespace.
             if (!Enumerable.Contains(args, "-noupdate"))
                 RunSteamCmd();

Torch.Server/ViewModels/PluginViewModel.cs

@@ -5,6 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using System.Windows;
 using System.Windows.Controls;
+using NLog;
 using Torch.API;
 using Torch.API.Plugins;
 using Torch.Server.Views;
@@ -17,13 +18,25 @@ namespace Torch.Server.ViewModels
         public string Name { get; }
         public ITorchPlugin Plugin { get; }
 
+        private static Logger _log = LogManager.GetCurrentClassLogger();
+
         public PluginViewModel(ITorchPlugin plugin)
         {
             Plugin = plugin;
 
             if (Plugin is IWpfPlugin p)
-                Control = p.GetControl();
-
+            {
+                try
+                {
+                    Control = p.GetControl();
+                }
+                catch (Exception ex)
+                {
+                    _log.Error(ex, $"Exception loading interface for plugin {Plugin.Name}! Plugin interface will not be available!");
+                    Control = null;
+                }
+            }
+            
             Name = $"{plugin.Name} ({plugin.Version})";
 
             ThemeControl.UpdateDynamicControls += UpdateResourceDict;

Torch/Collections/BinaryMinHeap.cs

@@ -0,0 +1,272 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+
+namespace Torch.Collections
+{
+    public class BinaryMinHeap<TKey, TValue> where TKey : IComparable
+    {
+        private struct HeapItem
+        {
+            public TKey Key { get; }
+            public TValue Value { get; }
+
+            public HeapItem(TKey key, TValue value)
+            {
+                Key = key;
+                Value = value;
+            }
+        }
+
+        private HeapItem[] _store;
+        private readonly IComparer<TKey> _comparer;
+
+        public int Capacity { get; private set; }
+        public int Count { get; private set; }
+
+        public bool Full => Count == Capacity;
+
+        public BinaryMinHeap(int initialCapacity = 32, IComparer<TKey> comparer = null)
+        {
+            _store = new HeapItem[initialCapacity];
+            Count = 0;
+            Capacity = initialCapacity;
+            _comparer = comparer ?? Comparer<TKey>.Default;
+        }
+
+        public void Insert(TValue value, TKey key)
+        {
+            EnsureCapacity(Capacity + 1);
+
+            var item = new HeapItem(key, value);
+
+            _store[Count] = item;
+
+            Up(Count);
+            Count++;
+        }
+
+        public TValue Min()
+        {
+            return _store[0].Value;
+        }
+
+        public TKey MinKey()
+        {
+            return _store[0].Key;
+        }
+
+        public TValue RemoveMin()
+        {
+            TValue toReturn = _store[0].Value;
+
+            if (Count != 1)
+            {
+                SwapIndices(Count - 1, 0);
+                _store[Count - 1] = default(HeapItem);
+                Count--;
+                Down(0);
+            }
+            else
+            {
+                Count--;
+                _store[0] = default(HeapItem);
+            }
+
+            return toReturn;
+        }
+
+        public TValue RemoveMax()
+        {
+            Debug.Assert(Count > 0);
+
+            var maxIndex = 0;
+
+            var maxItem = _store[0];
+
+            for (var i = 1; i < Count; ++i)
+            {
+                var c = _store[i];
+                if (_comparer.Compare(maxItem.Key, c.Key) < 0)
+                {
+                    maxIndex = i;
+                    maxItem = c;
+                }
+            }
+            
+            if (maxIndex != Count)
+            {
+                SwapIndices(Count - 1, maxIndex);
+                Up(maxIndex);
+            }
+            Count--;
+
+            return maxItem.Value;
+        }
+
+        public TValue Remove(TValue value, IEqualityComparer<TValue> comparer = null)
+        {
+            if (Count == 0)
+                return default(TValue);
+
+            if (comparer == null)
+                comparer = EqualityComparer<TValue>.Default;
+
+            var itemIndex = -1;
+
+            for (var i = 0; i < Count; ++i)
+            {
+                if (comparer.Equals(value, _store[i].Value))
+                {
+                    itemIndex = i;
+                    break;
+                }
+            }
+
+            if (itemIndex != Count && itemIndex != -1)
+            {
+                TValue removed = _store[itemIndex].Value;
+
+                SwapIndices(Count - 1, itemIndex);
+                Up(itemIndex);
+                Down(itemIndex);
+
+                Count--;
+                return removed;
+            }
+            else
+                return default(TValue);
+        }
+
+        public TValue Remove(TKey key)
+        {
+            Debug.Assert(Count > 0);
+
+            var itemIndex = 0;
+
+            for (var i = 1; i < Count; ++i)
+            {
+                if (_comparer.Compare(key, _store[i].Key) == 0)
+                    itemIndex = i;
+            }
+
+            TValue removed;
+
+            if (itemIndex != Count)
+            {
+                removed = _store[itemIndex].Value;
+
+                SwapIndices(Count - 1, itemIndex);
+                Up(itemIndex);
+                Down(itemIndex);
+            }
+            else
+                removed = default(TValue);
+
+            Count--;
+
+            return removed;
+        }
+
+        public void Clear()
+        {
+            Array.Clear(_store, 0, Capacity);
+            Count = 0;
+        }
+
+        private void Up(int index)
+        {
+            if (index == 0)
+                return;
+            int parentIndex = (index - 1) / 2;
+            HeapItem swap = _store[index];
+            if (_comparer.Compare(_store[parentIndex].Key, swap.Key) <= 0)
+                return;
+
+            while (true)
+            {
+                SwapIndices(parentIndex, index);
+                index = parentIndex;
+
+                if (index == 0)
+                    break;
+                parentIndex = (index - 1) / 2;
+                if (_comparer.Compare(_store[parentIndex].Key, swap.Key) <= 0)
+                    break;
+            }
+
+            InsertItem(ref swap, index);
+        }
+
+        private void Down(int index)
+        {
+            if (Count == index + 1)
+                return;
+
+            int left = index * 2 + 1;
+            int right = left + 1;
+
+            HeapItem swap = _store[index];
+
+            while (right <= Count) // While the current node has children
+            {
+                var nLeft = _store[left];
+                var nRight = _store[right];
+
+                if (right == Count || _comparer.Compare(nLeft.Key, nRight.Key) < 0) // Only the left child exists or the left child is smaller
+                {
+                    if (_comparer.Compare(swap.Key, nLeft.Key) <= 0)
+                        break;
+
+                    SwapIndices(left, index);
+
+                    index = left;
+                    left = index * 2 + 1;
+                    right = left + 1;
+                }
+                else // Right child exists and is smaller
+                {
+                    if (_comparer.Compare(swap.Key, nRight.Key) <= 0)
+                        break;
+
+                    SwapIndices(right, index);
+
+                    index = right;
+                    left = index * 2 + 1;
+                    right = left + 1;
+                }
+            }
+
+            InsertItem(ref swap, index);
+        }
+
+        private void SwapIndices(int fromIndex, int toIndex)
+        {
+            _store[toIndex] = _store[fromIndex];
+        }
+
+        private void InsertItem(ref HeapItem fromItem, int toIndex)
+        {
+            _store[toIndex] = fromItem;
+        }
+
+        public void EnsureCapacity(int capacity)
+        {
+            if (_store.Length >= capacity)
+                return;
+
+            //double capacity until we reach the minimum requested capacity (or greater)
+            int newcap = Capacity * 2;
+            while (newcap < capacity)
+                newcap *= 2;
+
+            var newArray = new HeapItem[newcap];
+            Array.Copy(_store, newArray, Capacity);
+
+            _store = newArray;
+            Capacity = newcap;
+        }
+    }
+}

Torch/Collections/SortedView.cs

@@ -2,13 +2,16 @@
 using System.Collections;
 using System.Collections.Generic;
 using System.Collections.Specialized;
+using System.ComponentModel;
 using System.Linq;
+using System.Runtime.CompilerServices;
 using System.Text;
 using System.Threading.Tasks;
+using Torch.Annotations;
 
 namespace Torch.Collections
 {
-    public class SortedView<T>: IReadOnlyCollection<T>, INotifyCollectionChanged
+    public class SortedView<T>: IReadOnlyCollection<T>, INotifyCollectionChanged, INotifyPropertyChanged
     {
         private readonly MtObservableCollectionBase<T> _backing;
         private IComparer<T> _comparer;
@@ -21,9 +24,15 @@ namespace Torch.Collections
             _store = new List<T>(_backing.Count);
             _store.AddRange(_backing);
             _backing.CollectionChanged += backing_CollectionChanged;
+            _backing.PropertyChanged += backing_PropertyChanged;
         }
 
-        private void backing_CollectionChanged(object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e)
+        private void backing_PropertyChanged(object sender, PropertyChangedEventArgs e)
+        {
+            OnPropertyChanged(e.PropertyName);
+        }
+
+        private void backing_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
         {
             switch (e.Action)
             {
@@ -122,5 +131,12 @@ namespace Torch.Collections
         }
 
         public event NotifyCollectionChangedEventHandler CollectionChanged;
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        [NotifyPropertyChangedInvocator]
+        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
     }
 }

Torch/Collections/SystemSortedView.cs

@@ -0,0 +1,134 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Collections.ObjectModel;
+using System.Collections.Specialized;
+using System.ComponentModel;
+using System.Linq;
+using System.Runtime.CompilerServices;
+using System.Text;
+using System.Threading.Tasks;
+using Torch.Annotations;
+
+namespace Torch.Collections
+{
+    public class SystemSortedView<T> : IReadOnlyCollection<T>, INotifyCollectionChanged, INotifyPropertyChanged
+    {
+        private readonly ObservableCollection<T> _backing;
+        private IComparer<T> _comparer;
+        private readonly List<T> _store;
+
+        public SystemSortedView(ObservableCollection<T> backing, IComparer<T> comparer)
+        {
+            _comparer = comparer;
+            _backing = backing;
+            _store = new List<T>(_backing.Count);
+            _store.AddRange(_backing);
+            _backing.CollectionChanged += backing_CollectionChanged;
+        }
+
+        private void backing_CollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
+        {
+            switch (e.Action)
+            {
+                case NotifyCollectionChangedAction.Add:
+                    InsertSorted(e.NewItems);
+                    CollectionChanged?.Invoke(this, e);
+                    break;
+                case NotifyCollectionChangedAction.Remove:
+                    _store.RemoveAll(r => e.OldItems.Contains(r));
+                    CollectionChanged?.Invoke(this, e);
+                    break;
+                case NotifyCollectionChangedAction.Move:
+                case NotifyCollectionChangedAction.Replace:
+                case NotifyCollectionChangedAction.Reset:
+                    Refresh();
+                    break;
+                default:
+                    throw new ArgumentOutOfRangeException();
+            }
+
+        }
+
+        public IEnumerator<T> GetEnumerator()
+        {
+            return _store.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        public int Count => _backing.Count;
+
+        private void InsertSorted(IEnumerable items)
+        {
+            foreach (var t in items)
+                InsertSorted((T)t);
+        }
+
+        private int InsertSorted(T item, IComparer<T> comparer = null)
+        {
+            if (comparer == null)
+                comparer = _comparer;
+
+            if (_store.Count == 0 || comparer == null)
+            {
+                _store.Add(item);
+                return 0;
+            }
+            if (comparer.Compare(_store[_store.Count - 1], item) <= 0)
+            {
+                _store.Add(item);
+                return _store.Count - 1;
+            }
+            if (comparer.Compare(_store[0], item) >= 0)
+            {
+                _store.Insert(0, item);
+                return 0;
+            }
+            int index = _store.BinarySearch(item);
+            if (index < 0)
+                index = ~index;
+            _store.Insert(index, item);
+            return index;
+        }
+
+        public void Sort(IComparer<T> comparer = null)
+        {
+            if (comparer == null)
+                comparer = _comparer;
+
+            if (comparer == null)
+                return;
+
+            _store.Sort(comparer);
+
+            CollectionChanged?.Invoke(this, new NotifyCollectionChangedEventArgs(NotifyCollectionChangedAction.Reset));
+        }
+
+        public void Refresh()
+        {
+            _store.Clear();
+            _store.AddRange(_backing);
+            Sort();
+        }
+
+        public void SetComparer(IComparer<T> comparer, bool resort = true)
+        {
+            _comparer = comparer;
+            if (resort)
+                Sort();
+        }
+
+        public event NotifyCollectionChangedEventHandler CollectionChanged;
+        public event PropertyChangedEventHandler PropertyChanged;
+
+        [NotifyPropertyChangedInvocator]
+        protected virtual void OnPropertyChanged([CallerMemberName] string propertyName = null)
+        {
+            PropertyChanged?.Invoke(this, new PropertyChangedEventArgs(propertyName));
+        }
+    }
+}

Torch/Torch.csproj

@@ -193,12 +193,14 @@
     <Compile Include="..\Versioning\AssemblyVersion.cs">
       <Link>Properties\AssemblyVersion.cs</Link>
     </Compile>
+    <Compile Include="Collections\BinaryMinHeap.cs" />
     <Compile Include="Collections\MtObservableCollection.cs" />
     <Compile Include="Collections\MtObservableCollectionBase.cs" />
     <Compile Include="Collections\MtObservableSortedDictionary.cs" />
     <Compile Include="Collections\MtObservableEvent.cs" />
     <Compile Include="Collections\MtObservableList.cs" />
     <Compile Include="Collections\SortedView.cs" />
+    <Compile Include="Collections\SystemSortedView.cs" />
     <Compile Include="Collections\TransformComparer.cs" />
     <Compile Include="Collections\TransformEnumerator.cs" />
     <Compile Include="Commands\ConsoleCommandContext.cs" />