From 7faebc507cb9a561f12d9884d79c3d6939a812d6 Mon Sep 17 00:00:00 2001
From: Vinnicyus Gracindo <vini.gracindo@gmail.com>
Date: Sat, 17 May 2025 12:13:04 -0300
Subject: [PATCH] Day 1 activity: pull request reviewer

---
 .../day-1-pull-request-review.ipynb           | 143 ++++++++++++++++++
 1 file changed, 143 insertions(+)
 create mode 100644 week1/community-contributions/day-1-pull-request-review.ipynb

diff --git a/week1/community-contributions/day-1-pull-request-review.ipynb b/week1/community-contributions/day-1-pull-request-review.ipynb
new file mode 100644
index 0000000..88c0136
--- /dev/null
+++ b/week1/community-contributions/day-1-pull-request-review.ipynb
@@ -0,0 +1,143 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "6af348cb",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# imports\n",
+    "import os\n",
+    "import requests\n",
+    "from dotenv import load_dotenv\n",
+    "from IPython.display import Markdown, display\n",
+    "from openai import OpenAI"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "8254a11a",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "# Load environment variables in a file called .env and load openai\n",
+    "load_dotenv(override=True)\n",
+    "api_key = os.getenv('OPENAI_API_KEY')\n",
+    "# Use a personal access token (PAT) for authentication. This allows access to private repositories and avoids low request limits.\n",
+    "# You can generate a token at: https://github.com/settings/tokens\n",
+    "github_token = os.getenv('GITHUB_TOKEN')\n",
+    "openai = OpenAI()"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "ac552db9",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def extract_diff_from_pr(pr_url: str) -> str:\n",
+    "    parts = pr_url.rstrip(\"/\").split(\"/\")\n",
+    "    owner, repo, pr_number = parts[3], parts[4], parts[6]\n",
+    "    \n",
+    "    api_url = f\"https://github.com/{owner}/{repo}/pull/{pr_number}.diff\"\n",
+    "    headers = {\n",
+    "        \"Accept\": \"application/vnd.github.v3.diff\",\n",
+    "        \"Authorization\": f\"token {github_token}\"\n",
+    "    }\n",
+    "\n",
+    "    response = requests.get(api_url, headers=headers)\n",
+    "    response.raise_for_status()\n",
+    "    \n",
+    "    return response.text\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "45d4012b",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "system_prompt = \"\"\"You are an assistant that reviews code and provides concise, constructive feedback based on best practices. \n",
+    "Focus on readability, architecture, performance, security, testability, and adherence to style guides.\n",
+    "Highlight issues and suggest improvements clearly. Respond in English and in markdown.\"\"\"\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5ed584ec",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def user_prompt_for(code_diffs):\n",
+    "    user_prompt = \"You are reviewing the following code diffs\"\n",
+    "    user_prompt += \". Please provide a concise code review focused on best practices: readability, architecture, performance, security, testability, and style guide adherence.\\n\"\n",
+    "    user_prompt += \"Use a numbered list and be constructive. Suggest improvements where necessary, and highlight what was done well.\\n\\n\"\n",
+    "    user_prompt += code_diffs\n",
+    "    return user_prompt\n"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "dc403124",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def code_review_for(code_diffs):\n",
+    "    return [\n",
+    "        {\"role\": \"system\", \"content\": system_prompt},\n",
+    "        {\"role\": \"user\", \"content\": user_prompt_for(code_diffs)}\n",
+    "    ]"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "5208abd3",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def reviewer(pr_link):\n",
+    "    response = openai.chat.completions.create(\n",
+    "        model = \"gpt-4o-mini\",\n",
+    "        messages = code_review_for(extract_diff_from_pr(pr_link))\n",
+    "    )\n",
+    "    return response.choices[0].message.content"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "525d92bf",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "def display_code_review(pr_link):\n",
+    "    code_review = reviewer(pr_link)\n",
+    "    display(Markdown(code_review))"
+   ]
+  },
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "03517335",
+   "metadata": {},
+   "outputs": [],
+   "source": [
+    "display_code_review(\"GITHUB PR LINK HERE\")"
+   ]
+  }
+ ],
+ "metadata": {
+  "language_info": {
+   "name": "python"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}