From d09ea20422561e2942e2eb0f7e1ffeceb8858e0e Mon Sep 17 00:00:00 2001
From: "T. Thiery" <thomas.thiery+git@gmail.com>
Date: Thu, 20 Aug 2020 23:37:53 +0200
Subject: [PATCH] Add gesture sensor w/ incomplete gesture list

#18 non-breaking (new api)
---
 README.md                                     |  2 +-
 .../ExampleTechnicMediumHubGestSensor.cs      | 28 +++++++++++++++++++
 .../SharpBrick.PoweredUp.Examples/Program.cs  |  3 +-
 .../Devices/TechnicMediumHubGestSensor.cs     | 13 ++++++++-
 src/SharpBrick.PoweredUp/Enums/Gesture.cs     | 12 ++++++++
 5 files changed, 55 insertions(+), 3 deletions(-)
 create mode 100644 examples/SharpBrick.PoweredUp.Examples/ExampleTechnicMediumHubGestSensor.cs
 create mode 100644 src/SharpBrick.PoweredUp/Enums/Gesture.cs

diff --git a/README.md b/README.md
index d8b93dc..bc3d4c0 100644
--- a/README.md
+++ b/README.md
@@ -265,7 +265,7 @@ DI Container Elements
     - [X] Technic Medium Hub - Accelerometer
     - [X] Technic Medium Hub - Gyro Sensor
     - [X] Technic Medium Hub - Tilt Sensor
-    - [ ] Technic Medium Hub - Gesture Sensor
+    - [X] Technic Medium Hub - Gesture Sensor
     - [X] Technic XLarge Motor
     - [X] Technic Large Motor
     - [ ] Technic Angular Motor (depend on availability of hardware / contributions)
diff --git a/examples/SharpBrick.PoweredUp.Examples/ExampleTechnicMediumHubGestSensor.cs b/examples/SharpBrick.PoweredUp.Examples/ExampleTechnicMediumHubGestSensor.cs
new file mode 100644
index 0000000..9654aa4
--- /dev/null
+++ b/examples/SharpBrick.PoweredUp.Examples/ExampleTechnicMediumHubGestSensor.cs
@@ -0,0 +1,28 @@
+using System;
+using System.Threading.Tasks;
+using System.Reactive.Linq;
+using Microsoft.Extensions.Logging;
+using Microsoft.Extensions.DependencyInjection;
+using SharpBrick.PoweredUp;
+
+namespace Example
+{
+    public class ExampleTechnicMediumHubGestSensor : BaseExample
+    {
+        public override async Task ExecuteAsync()
+        {
+            using (var technicMediumHub = Host.FindByType<TechnicMediumHub>())
+            {
+                var device = technicMediumHub.GestureSensor;
+
+                await device.SetupNotificationAsync(0, true, deltaInterval: 0);
+
+                using var _ = device.GestureObservable.Subscribe(x => Log.LogInformation($"Gesture {x}"));
+
+                await Task.Delay(30_000);
+
+                await technicMediumHub.SwitchOffAsync();
+            }
+        }
+    }
+}
\ No newline at end of file
diff --git a/examples/SharpBrick.PoweredUp.Examples/Program.cs b/examples/SharpBrick.PoweredUp.Examples/Program.cs
index 5b7fd17..4bc6a21 100644
--- a/examples/SharpBrick.PoweredUp.Examples/Program.cs
+++ b/examples/SharpBrick.PoweredUp.Examples/Program.cs
@@ -32,7 +32,8 @@ static async Task Main(string[] args)
             //example = new Example.ExampleSetHubProperty();
             //example = new Example.ExampleHubPropertyObserving();
             //example = new Example.ExampleDiscoverByType();
-            example = new Example.ExampleCalibrationSteering();
+            //example = new Example.ExampleCalibrationSteering();
+            example = new Example.ExampleTechnicMediumHubGestSensor();
 
             // NOTE: Examples are programmed object oriented style. Base class implements methods Configure, DiscoverAsync and ExecuteAsync to be overwriten on demand.
             await example.InitHostAndDiscoverAsync(enableTrace);
diff --git a/src/SharpBrick.PoweredUp/Devices/TechnicMediumHubGestSensor.cs b/src/SharpBrick.PoweredUp/Devices/TechnicMediumHubGestSensor.cs
index b3f9fca..15df270 100644
--- a/src/SharpBrick.PoweredUp/Devices/TechnicMediumHubGestSensor.cs
+++ b/src/SharpBrick.PoweredUp/Devices/TechnicMediumHubGestSensor.cs
@@ -3,6 +3,7 @@
 using System;
 using System.Collections.Generic;
 using System.Linq;
+using System.Reactive.Linq;
 using SharpBrick.PoweredUp.Protocol;
 using SharpBrick.PoweredUp.Utils;
 
@@ -10,12 +11,22 @@ namespace SharpBrick.PoweredUp
 {
     public class TechnicMediumHubGestSensor : Device, IPoweredUpDevice
     {
+        protected SingleValueMode<sbyte> _gestureMode;
+        public byte ModeIndexGesture { get; protected set; } = 0;
+
+        public Gesture Gesture => (Gesture)_gestureMode.SI;
+        public IObservable<Gesture> GestureObservable => _gestureMode.Observable.Select(x => (Gesture)x.SI);
+
         public TechnicMediumHubGestSensor()
         { }
 
         public TechnicMediumHubGestSensor(IPoweredUpProtocol protocol, byte hubId, byte portId)
             : base(protocol, hubId, portId)
-        { }
+        {
+            _gestureMode = SingleValueMode<sbyte>(ModeIndexGesture);
+            
+            ObserveForPropertyChanged(_gestureMode.Observable, nameof(Gesture));
+        }
 
         public IEnumerable<byte[]> GetStaticPortInfoMessages(Version softwareVersion, Version hardwareVersion)
             => @"
diff --git a/src/SharpBrick.PoweredUp/Enums/Gesture.cs b/src/SharpBrick.PoweredUp/Enums/Gesture.cs
new file mode 100644
index 0000000..3171aeb
--- /dev/null
+++ b/src/SharpBrick.PoweredUp/Enums/Gesture.cs
@@ -0,0 +1,12 @@
+namespace SharpBrick.PoweredUp
+{
+    // some are free fall, tap, shake, ??
+    public enum Gesture : int
+    {
+        None = 0, // UNSPECED
+        Tap = 1, // UNSPECED
+        Gesture_2 = 2,
+        Shake = 3, // UNSPECED
+        FreeFall = 4, // UNSPECED
+    }
+}
\ No newline at end of file