Stub in framework for new .net Open Jibo cloud

OpenJibo/src/Jibo.Cloud/dotnet/src/Jibo.Cloud.Application/Services/DemoConversationBroker.cs

@@ -0,0 +1,62 @@
+using Jibo.Runtime.Abstractions;
+
+namespace Jibo.Cloud.Application.Services;
+
+public sealed class DemoConversationBroker : IConversationBroker
+{
+    public Task<ResponsePlan> HandleTurnAsync(TurnContext turn, CancellationToken cancellationToken = default)
+    {
+        var transcript = (turn.NormalizedTranscript ?? turn.RawTranscript ?? string.Empty).Trim();
+        var lowered = transcript.ToLowerInvariant();
+
+        var reply = transcript.Length == 0
+            ? "I am listening."
+            : lowered.Contains("time")
+                ? $"It is {DateTime.Now:hh:mm tt}."
+                : lowered.Contains("hello") || lowered.Contains("hi")
+                    ? "Hello from the OpenJibo cloud."
+                    : lowered.Contains("joke")
+                        ? "Why did the robot bring a ladder? Because it wanted to reach the cloud."
+                        : $"I heard: {transcript}";
+
+        var plan = new ResponsePlan
+        {
+            SessionId = turn.SessionId,
+            Status = ResponseStatus.Succeeded,
+            IntentName = lowered.Contains("joke") ? "joke" : lowered.Contains("time") ? "time" : "chat",
+            Topic = "conversation",
+            DeviceId = turn.DeviceId,
+            TargetHost = turn.HostName,
+            DebugRoute = "demo-broker",
+            Actions =
+            {
+                new SpeakAction
+                {
+                    Sequence = 0,
+                    Text = reply,
+                    Voice = "griffin"
+                },
+                new ListenAction
+                {
+                    Sequence = 1,
+                    Timeout = TimeSpan.FromSeconds(12),
+                    Mode = "follow-up"
+                }
+            },
+            FollowUp = new FollowUpPolicy
+            {
+                KeepMicOpen = true,
+                Timeout = TimeSpan.FromSeconds(12),
+                ExpectedTopic = "conversation"
+            },
+            ProtocolMetadata = new Dictionary<string, object?>
+            {
+                ["host"] = turn.HostName,
+                ["service"] = turn.ProtocolService,
+                ["operation"] = turn.ProtocolOperation
+            }
+        };
+
+        return Task.FromResult(plan);
+    }
+}