replace python django backend with nodejs backend

backend_old/ai/services/AiInstance.py

@@ -0,0 +1,83 @@
+import threading
+from typing import AnyStr
+
+from .DcClient import DcClient
+from ..ais.AiBase import AiBase
+from ..ais.QwenAi import QwenAi
+from ..events import chat_text_signal, discord_online_signal, discord_react_to_chat_signal
+from ..models import AiConfig
+
+
+class DiscordStatus:
+    def __init__(self, instance):
+        self._instance = instance
+        self._client = DcClient(instance)
+        self.online = False
+        self.react_to_chat = False
+
+    def set_online(self, online: bool):
+        if online and not self.online:
+            self._client.connect()
+        elif not online and self.online:
+            self._client.disconnect()
+        else:
+            return
+        self.online = online
+        discord_online_signal.send(sender=self.__class__, ai_name=self._instance.configuration.name, status=self.online)
+
+    def set_react_to_chat(self, react_to_chat: bool):
+        self.react_to_chat = react_to_chat
+        discord_react_to_chat_signal.send(sender=self.__class__, ai_name=self._instance.configuration.name,
+                                          status=self.react_to_chat)
+
+    def __del__(self):
+        self.set_online(False)
+
+
+class AiInstance:
+    def __init__(self, configuration: AiConfig):
+        print('Initializing AiInstance ' + configuration.name)
+        self._bot: AiBase | None = None
+        self._botLock = threading.Lock()
+        self.configuration = configuration
+        self.discord = DiscordStatus(self)
+        self.messages = []
+        self._messagesLock = threading.Lock()
+
+    def endure_loaded(self):
+        self._botLock.acquire()
+        try:
+            if self._bot is None:
+                self._bot = QwenAi(self.configuration.model_id_or_path)
+        finally:
+            self._botLock.release()
+
+    def endure_unloaded(self):
+        self._botLock.acquire()
+        try:
+            if self._bot is not None:
+                del self._bot
+                self._bot = None
+        finally:
+            self._botLock.release()
+
+    def chat_text(self, user: AnyStr, text: AnyStr):
+        self.endure_loaded()
+        self._messagesLock.acquire()
+        try:
+            self.messages.append({'role': 'user', 'name': user, 'content': text})
+            chat_text_signal.send(sender=self.__class__, ai_name=self.configuration.name, message=self.messages[-1])
+            self.messages = self._bot.generate(self.messages)
+            chat_text_signal.send(sender=self.__class__, ai_name=self.configuration.name, message=self.messages[-1])
+            return self.messages[-1]
+        finally:
+            self._messagesLock.release()
+
+    def chat_conversation(self, conversation):
+        self.endure_loaded()
+        return self._bot.generate(conversation)
+
+    def __del__(self):
+        print('Destructing AiInstance ' + self.configuration.name)
+        del self._bot
+        del self.discord