Update app.py

app.py

@@ -1,43 +1,45 @@
 import gradio as gr
-from huggingface_hub import InferenceClient
 
-"""
-For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference
-"""
-client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
+from db import get_db
+from chain import get_chain
 
 
+vectordb = get_db(
+    chunk_size=1000,
+    chunk_overlap=200,
+    model_path = 'intfloat/multilingual-e5-large-instruct',
+)
+
+chain = get_chain(
+    vectordb,
+    repo_id="HuggingFaceH4/zephyr-7b-beta",
+    task="text-generation",
+    max_new_tokens=512,
+    top_k=30,
+    temperature=0.1,
+    repetition_penalty=1.03,
+    search_type="mmr",
+    k=3,
+    fetch_k=5,
+    template="""Use the following sentences of context to answer the question at the end.
+If you don't know the answer, that is if the answer is not in the context, then just say that you don't know, don't try to make up an answer.
+Always say "Thanks for asking!" at the end of the answer.
+
+{context}
+
+Question: {question}
+Helpful Answer:"""
+)
+
 def respond(
-    message,
-    history: list[tuple[str, str]],
+    question,
+    _, # Ignore the message history parameter since we are doing one-off invocations
     system_message,
     max_tokens,
     temperature,
     top_p,
 ):
-    messages = [{"role": "system", "content": system_message}]
-
-    for val in history:
-        if val[0]:
-            messages.append({"role": "user", "content": val[0]})
-        if val[1]:
-            messages.append({"role": "assistant", "content": val[1]})
-
-    messages.append({"role": "user", "content": message})
-
-    response = ""
-
-    for message in client.chat_completion(
-        messages,
-        max_tokens=max_tokens,
-        stream=True,
-        temperature=temperature,
-        top_p=top_p,
-    ):
-        token = message.choices[0].delta.content
-
-        response += token
-        yield response
+    return rag_chain.invoke({'question': question})
 
 
 """