{
 "cells": [
  {
   "cell_type": "code",
   "execution_count": 4,
   "id": "eadb5daf-6ee9-44a3-ac98-f53642c233e8",
   "metadata": {},
   "outputs": [],
   "source": [
    "from langchain.prompts import (\n",
    "    ChatPromptTemplate,\n",
    "    SystemMessagePromptTemplate,\n",
    "    HumanMessagePromptTemplate,\n",
    ")\n",
    "from langchain.chat_models import ChatOpenAI\n",
    "from langchain.document_loaders import WikipediaLoader\n",
    "\n",
    "def answer_question_about(person_name, question):\n",
    "\n",
    "    \"\"\"\n",
    "    Use the Wikipedia Document Loader to help answer questions about someone, insert it as additional helpful context.\n",
    "    \"\"\"\n",
    "\n",
    "    # Load document\n",
    "    loader = WikipediaLoader(query=person_name, load_max_docs=1)\n",
    "    context_text = loader.load()[0].page_content\n",
    "\n",
    "    # connect to openai model\n",
    "    model = ChatOpenAI()\n",
    "\n",
    "    # send prompt --> format question\n",
    "    template = \"Answer this question:\\n{question}\\n Here is some extra context\\n{document}\"\n",
    "    human_prompt = HumanMessagePromptTemplate.from_template(template)\n",
    "\n",
    "    # chat prompt --> result content\n",
    "    chat_prompt = ChatPromptTemplate.from_messages([human_prompt])\n",
    "\n",
    "    result = model(chat_prompt.format_prompt(question=question, document=context_text).to_messages())\n",
    "\n",
    "    return result.content"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 5,
   "id": "ca5cc218-6160-4392-a02b-08cd7259d521",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Julius Robert Oppenheimer was born on April 22, 1904.'"
      ]
     },
     "execution_count": 5,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "answer_question_about(\"Robert Oppenheimer\", \"When was he born?\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": 6,
   "id": "cac420e2-7747-4b81-a54b-cb00aa971b8e",
   "metadata": {},
   "outputs": [
    {
     "data": {
      "text/plain": [
       "'Clint Eastwood was born on May 31, 1930.'"
      ]
     },
     "execution_count": 6,
     "metadata": {},
     "output_type": "execute_result"
    }
   ],
   "source": [
    "answer_question_about(\"Clint Eastwood\", \"When was he born?\")"
   ]
  },
  {
   "cell_type": "code",
   "execution_count": null,
   "id": "05e764cc-13b0-4a70-b124-f89e14533d12",
   "metadata": {},
   "outputs": [],
   "source": []
  }
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