added DST, DP and NLG classes

DialoguePolicy.py

@@ -0,0 +1,8 @@
+class DialoguePolicy:
+
+    def policy(self, state):
+        system_act = None
+        name = "James"
+        if state == "what name":
+            system_act = f"inform(name={name})"
+        return system_act

DialogueStateTracker.py

@@ -0,0 +1,7 @@
+class DialogueStateTracker:
+
+    def dst(self, user_act):
+        state = None
+        if user_act == "request(firstname)":
+            state = "what name"
+        return state

Main.py

@@ -1,7 +1,24 @@
 from NaturalLanguageAnalyzer import NaturalLanguageAnalyzer
+from DialogueStateTracker import DialogueStateTracker
+from DialoguePolicy import DialoguePolicy
+from NaturalLanguageGeneration import NaturalLanguageGeneration
 
 if __name__ == "__main__":
     text = "Cześć, jak masz na imię?"
     nla = NaturalLanguageAnalyzer()
     user_act = nla.process(text)
     print(user_act)
+
+    dst = DialogueStateTracker()
+    state = dst.dst(user_act)
+    print(state)
+
+    dp = DialoguePolicy()
+    system_act = dp.policy(state)
+    print(system_act)
+
+    nlg = NaturalLanguageGeneration()
+    response = nlg.nlg(system_act)
+    print(response)
+
+

NaturalLanguageGeneration.py

@@ -0,0 +1,8 @@
+class NaturalLanguageGeneration:
+
+    def nlg(self, system_act):
+        response = None
+        name = "James"
+        if system_act == f"inform(name={name})":
+            response = f"Witaj, nazywam się {name}"
+        return response