feat: poe bot (#492)

Co-authored-by: Taranjeet Singh <reachtotj@gmail.com>

embedchain/bots/poe.py

@@ -0,0 +1,79 @@
+import argparse
+import logging
+import os
+from typing import List, Optional
+
+from fastapi_poe import PoeBot, run
+
+from embedchain.config import QueryConfig
+
+from .base import BaseBot
+
+
+class EcPoeBot(BaseBot, PoeBot):
+    def __init__(self):
+        self.history_length = 5
+        super().__init__()
+
+    async def get_response(self, query):
+        last_message = query.query[-1].content
+        try:
+            history = (
+                [f"{m.role}: {m.content}" for m in query.query[-(self.history_length + 1) : -1]]
+                if len(query.query) > 0
+                else None
+            )
+        except Exception as e:
+            logging.error(f"Error when processing the chat history. Message is being sent without history. Error: {e}")
+        logging.warning(history)
+        answer = self.handle_message(last_message, history)
+        yield self.text_event(answer)
+
+    def handle_message(self, message, history: Optional[List[str]] = None):
+        if message.startswith("/add "):
+            response = self.add_data(message)
+        else:
+            response = self.ask_bot(message, history)
+        return response
+
+    def add_data(self, message):
+        data = message.split(" ")[-1]
+        try:
+            self.add(data)
+            response = f"Added data from: {data}"
+        except Exception:
+            logging.exception(f"Failed to add data {data}.")
+            response = "Some error occurred while adding data."
+        return response
+
+    def ask_bot(self, message, history: List[str]):
+        try:
+            config = QueryConfig(history=history)
+            response = self.query(message, config)
+        except Exception:
+            logging.exception(f"Failed to query {message}.")
+            response = "An error occurred. Please try again!"
+        return response
+
+
+def start_command():
+    parser = argparse.ArgumentParser(description="EmbedChain PoeBot command line interface")
+    # parser.add_argument("--host", default="0.0.0.0", help="Host IP to bind")
+    parser.add_argument("--port", default=8080, type=int, help="Port to bind")
+    parser.add_argument("--api-key", type=str, help="Poe API key")
+    # parser.add_argument(
+    #     "--history-length",
+    #     default=5,
+    #     type=int,
+    #     help="Set the max size of the chat history. Multiplies cost, but improves conversation awareness.",
+    # )
+    args = parser.parse_args()
+
+    # FIXME: Arguments are automatically loaded by Poebot's ArgumentParser which causes it to fail.
+    # the port argument here is also just for show, it actually works because poe has the same argument.
+
+    run(EcPoeBot(), api_key=args.api_key or os.environ.get("POE_API_KEY"))
+
+
+if __name__ == "__main__":
+    start_command()