Core - Added conditional data bindings

src/Artemis.Core/Models/Profile/DataBindings/DataBinding.cs

@@ -262,7 +262,7 @@ namespace Artemis.Core
     public enum DataBindingModeType
     {
         /// <summary>
-        /// Disables the data binding
+        ///     Disables the data binding
         /// </summary>
         None,
 
@@ -272,8 +272,8 @@ namespace Artemis.Core
         Direct,
 
         /// <summary>
-        ///      Replaces the layer property value with the data binding value
+        ///     Replaces the layer property value with the data binding value
         /// </summary>
-        Conditional,
+        Conditional
     }
 }

src/Artemis.Core/Models/Profile/DataBindings/Modes/ConditionalDataBinding.cs

@@ -1,4 +1,7 @@
-using Artemis.Storage.Entities.Profile.DataBindings;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using Artemis.Storage.Entities.Profile.DataBindings;
 
 namespace Artemis.Core
 {
@@ -7,42 +10,130 @@ namespace Artemis.Core
     /// </summary>
     public class ConditionalDataBinding<TLayerProperty, TProperty> : IDataBindingMode<TLayerProperty, TProperty>
     {
+        private readonly List<DataBindingCondition<TLayerProperty, TProperty>> _conditions = new List<DataBindingCondition<TLayerProperty, TProperty>>();
+        private bool _disposed;
+
         internal ConditionalDataBinding(DataBinding<TLayerProperty, TProperty> dataBinding, ConditionalDataBindingEntity entity)
         {
             DataBinding = dataBinding;
             Entity = entity;
         }
 
+        internal ConditionalDataBindingEntity Entity { get; }
+
+        /// <summary>
+        ///     Gets a list of conditions applied to this data binding
+        /// </summary>
+        public IReadOnlyList<DataBindingCondition<TLayerProperty, TProperty>> Conditions => _conditions.AsReadOnly();
+
         /// <inheritdoc />
         public DataBinding<TLayerProperty, TProperty> DataBinding { get; }
 
         /// <inheritdoc />
         public TProperty GetValue(TProperty baseValue)
         {
-            return default;
+            if (_disposed)
+                throw new ObjectDisposedException("ConditionalDataBinding");
+
+            var condition = Conditions.FirstOrDefault(c => c.Evaluate());
+            return condition == null ? baseValue : condition.Value;
         }
 
-        internal ConditionalDataBindingEntity Entity { get; }
-
-        #region Storage
-
-        /// <inheritdoc />
-        public void Load()
-        {
-        }
-
-        /// <inheritdoc />
-        public void Save()
-        {
-        }
-
-        #endregion
-
         #region IDisposable
 
         /// <inheritdoc />
         public void Dispose()
         {
+            _disposed = true;
+
+            foreach (var dataBindingCondition in Conditions)
+                dataBindingCondition.Dispose();
+        }
+
+        #endregion
+
+        #region Values
+
+        /// <summary>
+        ///     Adds a condition to the conditional data binding's <see cref="Conditions" /> collection
+        /// </summary>
+        /// <returns>The newly created <see cref="DataBindingCondition{TLayerProperty,TProperty}" /></returns>
+        public DataBindingCondition<TLayerProperty, TProperty> AddCondition()
+        {
+            if (_disposed)
+                throw new ObjectDisposedException("ConditionalDataBinding");
+
+            var condition = new DataBindingCondition<TLayerProperty, TProperty>(this);
+            _conditions.Add(condition);
+
+            ApplyOrder();
+            OnConditionsUpdated();
+
+            return condition;
+        }
+
+        /// <summary>
+        ///     Removes a condition from the conditional data binding's <see cref="Conditions" /> collection and disposes it
+        /// </summary>
+        /// <param name="condition"></param>
+        public void RemoveCondition(DataBindingCondition<TLayerProperty, TProperty> condition)
+        {
+            if (_disposed)
+                throw new ObjectDisposedException("ConditionalDataBinding");
+            if (!_conditions.Contains(condition))
+                return;
+
+            _conditions.Remove(condition);
+            condition.Dispose();
+
+            ApplyOrder();
+            OnConditionsUpdated();
+        }
+
+        internal void ApplyOrder()
+        {
+            _conditions.Sort((a, b) => a.Order.CompareTo(b.Order));
+            for (var index = 0; index < _conditions.Count; index++)
+            {
+                var condition = _conditions[index];
+                condition.Order = index + 1;
+            }
+        }
+
+        #endregion
+
+
+        #region Storage
+
+        /// <inheritdoc />
+        public void Load()
+        {
+            foreach (var dataBindingConditionEntity in Entity.Values)
+                _conditions.Add(new DataBindingCondition<TLayerProperty, TProperty>(this, dataBindingConditionEntity));
+
+            ApplyOrder();
+        }
+
+        /// <inheritdoc />
+        public void Save()
+        {
+            Entity.Values.Clear();
+            foreach (var dataBindingCondition in Conditions)
+                dataBindingCondition.Save();
+        }
+
+        #endregion
+
+        #region Events
+
+        /// <summary>
+        ///     Occurs when a condition is added or removed
+        /// </summary>
+        public event EventHandler ConditionsUpdated;
+
+        protected virtual void OnConditionsUpdated()
+        {
+            ConditionsUpdated?.Invoke(this, EventArgs.Empty);
         }
 
         #endregion

src/Artemis.Core/Models/Profile/DataBindings/Modes/DataBindingCondition.cs

@@ -0,0 +1,107 @@
+using System;
+using Artemis.Storage.Entities.Profile.DataBindings;
+using Newtonsoft.Json;
+
+namespace Artemis.Core
+{
+    /// <inheritdoc />
+    public class DataBindingCondition<TLayerProperty, TProperty> : IDataBindingCondition
+    {
+        private bool _disposed;
+
+        /// <summary>
+        ///     Creates a new instance of the <see cref="DataBindingCondition{TLayerProperty,TProperty}" /> class
+        /// </summary>
+        /// <param name="conditionalDataBinding">The conditional data binding this condition is applied too</param>
+        public DataBindingCondition(ConditionalDataBinding<TLayerProperty, TProperty> conditionalDataBinding)
+        {
+            ConditionalDataBinding = conditionalDataBinding ?? throw new ArgumentNullException(nameof(conditionalDataBinding));
+            Order = conditionalDataBinding.Conditions.Count + 1;
+            Entity = new DataBindingConditionEntity();
+            Save();
+        }
+
+        internal DataBindingCondition(ConditionalDataBinding<TLayerProperty, TProperty> conditionalDataBinding, DataBindingConditionEntity entity)
+        {
+            ConditionalDataBinding = conditionalDataBinding ?? throw new ArgumentNullException(nameof(conditionalDataBinding));
+            Entity = entity;
+            Load();
+        }
+
+        /// <summary>
+        ///     Gets the conditional data binding this condition is applied to
+        /// </summary>
+        public ConditionalDataBinding<TLayerProperty, TProperty> ConditionalDataBinding { get; }
+
+        /// <summary>
+        ///     Gets the position at which the modifier appears on the data binding
+        /// </summary>
+        public int Order { get; internal set; }
+
+        /// <summary>
+        ///     Gets or sets the value to be applied when the condition is met
+        /// </summary>
+        public TProperty Value { get; set; }
+
+        /// <summary>
+        ///     Gets the root group of the condition that must be met
+        /// </summary>
+        public DataModelConditionGroup Condition { get; private set; }
+
+        internal DataBindingConditionEntity Entity { get; set; }
+
+        /// <inheritdoc />
+        public bool Evaluate()
+        {
+            return Condition.Evaluate();
+        }
+
+        /// <inheritdoc />
+        public void Save()
+        {
+            if (_disposed)
+                throw new ObjectDisposedException("DataBindingCondition");
+
+            if (!ConditionalDataBinding.Entity.Values.Contains(Entity))
+                ConditionalDataBinding.Entity.Values.Add(Entity);
+
+            Entity.Condition = Condition.Entity;
+            Condition.Save();
+
+            Entity.Value = JsonConvert.SerializeObject(Value);
+            Entity.Order = Order;
+        }
+
+        /// <inheritdoc />
+        public void Load()
+        {
+            if (_disposed)
+                throw new ObjectDisposedException("DataBindingCondition");
+
+            Condition = Entity.Condition != null
+                ? new DataModelConditionGroup(null, Entity.Condition)
+                : new DataModelConditionGroup(null);
+
+            Value = JsonConvert.DeserializeObject<TProperty>(Entity.Value);
+            Order = Entity.Order;
+        }
+
+        /// <inheritdoc />
+        public void Dispose()
+        {
+            _disposed = true;
+
+            Condition.Dispose();
+        }
+
+        /// <summary>
+        ///     Updates the order and resorts the Conditions list in the <see cref="ConditionalDataBinding" />
+        /// </summary>
+        /// <param name="order"></param>
+        public void UpdateOrder(int order)
+        {
+            Order = order;
+            ConditionalDataBinding.ApplyOrder();
+        }
+    }
+}

src/Artemis.Core/Models/Profile/DataBindings/Modes/DataBindingModifier.cs

@@ -12,14 +12,10 @@ namespace Artemis.Core
     {
         private bool _disposed;
 
-        /// <summary>
+        internal DataBindingModifier(DirectDataBinding<TLayerProperty, TProperty> directDataBinding, ProfileRightSideType parameterType)
-        ///     Creates a new instance of the <see cref="DataBindingModifier{TLayerProperty,TProperty}" /> class
-        /// </summary>
-        /// <param name="directDataBinding">The direct data binding the modifier is to be applied to</param>
-        /// <param name="parameterType">The type of the parameter, can either be dynamic (based on a data model value) or static</param>
-        public DataBindingModifier(DirectDataBinding<TLayerProperty, TProperty> directDataBinding, ProfileRightSideType parameterType)
         {
             DirectDataBinding = directDataBinding ?? throw new ArgumentNullException(nameof(directDataBinding));
+            Order = directDataBinding.Modifiers.Count + 1;
             ParameterType = parameterType;
             Entity = new DataBindingModifierEntity();
             Initialize();
@@ -40,7 +36,7 @@ namespace Artemis.Core
         public DataBindingModifierType ModifierType { get; private set; }
 
         /// <summary>
-        /// Gets the direct data binding this modifier is applied to
+        ///     Gets the direct data binding this modifier is applied to
         /// </summary>
         public DirectDataBinding<TLayerProperty, TProperty> DirectDataBinding { get; }
 
@@ -123,6 +119,17 @@ namespace Artemis.Core
             // Parameter is done during initialize
         }
 
+        /// <inheritdoc />
+        public void Dispose()
+        {
+            _disposed = true;
+
+            DataBindingModifierTypeStore.DataBindingModifierAdded -= DataBindingModifierTypeStoreOnDataBindingModifierAdded;
+            DataBindingModifierTypeStore.DataBindingModifierRemoved -= DataBindingModifierTypeStoreOnDataBindingModifierRemoved;
+            DataModelStore.DataModelAdded -= DataModelStoreOnDataModelAdded;
+            DataModelStore.DataModelRemoved -= DataModelStoreOnDataModelRemoved;
+        }
+
         /// <summary>
         ///     Applies the modifier to the provided value
         /// </summary>
@@ -346,16 +353,5 @@ namespace Artemis.Core
         }
 
         #endregion
-
-        /// <inheritdoc />
-        public void Dispose()
-        {
-            _disposed = true;
-
-            DataBindingModifierTypeStore.DataBindingModifierAdded -= DataBindingModifierTypeStoreOnDataBindingModifierAdded;
-            DataBindingModifierTypeStore.DataBindingModifierRemoved -= DataBindingModifierTypeStoreOnDataBindingModifierRemoved;
-            DataModelStore.DataModelAdded -= DataModelStoreOnDataModelAdded;
-            DataModelStore.DataModelRemoved -= DataModelStoreOnDataModelRemoved;
-        }
     }
 }

src/Artemis.Core/Models/Profile/DataBindings/Modes/DirectDataBinding.cs

@@ -24,9 +24,6 @@ namespace Artemis.Core
             Load();
         }
 
-        /// <inheritdoc />
-        public DataBinding<TLayerProperty, TProperty> DataBinding { get; }
-
         internal DirectDataBindingEntity Entity { get; }
 
         /// <summary>
@@ -49,11 +46,14 @@ namespace Artemis.Core
         /// </summary>
         public Func<DataModel, object> CompiledTargetAccessor { get; private set; }
 
+        /// <inheritdoc />
+        public DataBinding<TLayerProperty, TProperty> DataBinding { get; }
+
         /// <inheritdoc />
         public TProperty GetValue(TProperty baseValue)
         {
             if (_disposed)
-                throw new ObjectDisposedException("DataBinding");
+                throw new ObjectDisposedException("DirectDataBinding");
 
             if (CompiledTargetAccessor == null)
                 return baseValue;
@@ -91,6 +91,8 @@ namespace Artemis.Core
             // Modifiers
             foreach (var dataBindingModifierEntity in Entity.Modifiers)
                 _modifiers.Add(new DataBindingModifier<TLayerProperty, TProperty>(this, dataBindingModifierEntity));
+
+            ApplyOrder();
         }
 
         /// <inheritdoc />
@@ -165,7 +167,7 @@ namespace Artemis.Core
         public void UpdateSource(DataModel dataModel, string path)
         {
             if (_disposed)
-                throw new ObjectDisposedException("DataBinding");
+                throw new ObjectDisposedException("DirectDataBinding");
 
             if (dataModel != null && path == null)
                 throw new ArtemisCoreException("If a data model is provided, a path is also required");
@@ -188,34 +190,47 @@ namespace Artemis.Core
         #region Modifiers
 
         /// <summary>
-        ///     Adds a modifier to the data binding's <see cref="Modifiers" /> collection
+        ///     Adds a modifier to the direct data binding's <see cref="Modifiers" /> collection
         /// </summary>
+        /// <param name="type">The type of the parameter, can either be dynamic (based on a data model value) or static</param>
         public DataBindingModifier<TLayerProperty, TProperty> AddModifier(ProfileRightSideType type)
         {
             if (_disposed)
-                throw new ObjectDisposedException("DataBinding");
+                throw new ObjectDisposedException("DirectDataBinding");
 
             var modifier = new DataBindingModifier<TLayerProperty, TProperty>(this, type);
             _modifiers.Add(modifier);
+
+            ApplyOrder();
             OnModifiersUpdated();
 
             return modifier;
         }
 
         /// <summary>
-        ///     Removes a modifier from the data binding's <see cref="Modifiers" /> collection and disposes it
+        ///     Removes a modifier from the direct data binding's <see cref="Modifiers" /> collection and disposes it
         /// </summary>
         public void RemoveModifier(DataBindingModifier<TLayerProperty, TProperty> modifier)
         {
             if (_disposed)
-                throw new ObjectDisposedException("DataBinding");
+                throw new ObjectDisposedException("DirectDataBinding");
+            if (!_modifiers.Contains(modifier))
+                return;
 
-            if (_modifiers.Contains(modifier))
+            _modifiers.Remove(modifier);
+            modifier.Dispose();
+
+            ApplyOrder();
+            OnModifiersUpdated();
+        }
+
+        internal void ApplyOrder()
+        {
+            _modifiers.Sort((a, b) => a.Order.CompareTo(b.Order));
+            for (var index = 0; index < _modifiers.Count; index++)
             {
-                _modifiers.Remove(modifier);
+                var modifier = _modifiers[index];
-                modifier.Dispose();
+                modifier.Order = index + 1;
-
-                OnModifiersUpdated();
             }
         }
 

src/Artemis.Core/Models/Profile/DataBindings/Modes/IDataBindingCondition.cs

@@ -0,0 +1,15 @@
+using System;
+
+namespace Artemis.Core
+{
+    /// <summary>
+    ///     Represents a condition and a value inside a <see cref="ConditionalDataBinding{TLayerProperty,TProperty}" />
+    /// </summary>
+    public interface IDataBindingCondition : IStorageModel, IDisposable
+    {
+        /// <summary>
+        ///     Evaluates the condition
+        /// </summary>
+        bool Evaluate();
+    }
+}

src/Artemis.Core/Models/Profile/DataBindings/Modes/IDataBindingMode.cs

@@ -3,7 +3,7 @@
 namespace Artemis.Core
 {
     /// <summary>
-    /// Represents a data binding mode
+    ///     Represents a data binding mode
     /// </summary>
     public interface IDataBindingMode<TLayerProperty, TProperty> : IStorageModel, IDisposable
     {

src/Artemis.Storage/Entities/Profile/DataBindings/ConditionalDataBindingEntity.cs

@@ -6,9 +6,9 @@ namespace Artemis.Storage.Entities.Profile.DataBindings
     {
         public ConditionalDataBindingEntity()
         {
-            Values = new List<DataBindingConditionValueEntity>();
+            Values = new List<DataBindingConditionEntity>();
         }
 
-        public List<DataBindingConditionValueEntity> Values { get; set; }
+        public List<DataBindingConditionEntity> Values { get; set; }
     }
 }

src/Artemis.Storage/Entities/Profile/DataBindings/DataBindingConditionEntity.cs

@@ -2,9 +2,10 @@
 
 namespace Artemis.Storage.Entities.Profile.DataBindings
 {
-    public class DataBindingConditionValueEntity
+    public class DataBindingConditionEntity
     {
         public string Value { get; set; }
-        public DataModelConditionGroupEntity RootGroup { get; set; }
+        public DataModelConditionGroupEntity Condition { get; set; }
+        public int Order { get; set; }
     }
 }