Update app.py

app.py

@@ -2,34 +2,37 @@ import streamlit as st
 from code_reviewer import review_code
 from pr_fetcher import fetch_pr_diff
 
-st.set_page_config(page_title="Code Review Agent", layout="centered")
+st.set_page_config(page_title="Code Review Agent", layout="wide")
 st.title("🤖 Code Review Agent (Hugging Face Edition)")
+st.caption("Fetch a Pull Request from GitHub and get AI-powered review + improved code")
 
-st.subheader("1️⃣ Paste code or diff manually:")
-code = st.text_area("Paste your code diff or snippet here 👇", height=300)
+# Sidebar for inputs
+st.sidebar.header("🔗 GitHub PR Details")
+repo_owner = st.sidebar.text_input("GitHub Repo Owner", placeholder="e.g. openai")
+repo_name = st.sidebar.text_input("GitHub Repo Name", placeholder="e.g. gpt-code-review")
+pr_number = st.sidebar.number_input("PR Number", min_value=1, step=1)
+github_token = st.sidebar.text_input("GitHub Token (optional if public repo)", type="password")
 
-st.subheader("2️⃣ Or fetch from a GitHub Pull Request:")
-repo_owner = st.text_input("GitHub Repo Owner", placeholder="e.g. openai")
-repo_name = st.text_input("GitHub Repo Name", placeholder="e.g. gpt-code-review")
-pr_number = st.number_input("PR Number", min_value=1, step=1)
-github_token = st.text_input("GitHub Token (optional if public repo)", type="password")
-
-if st.button("Fetch from GitHub PR"):
+if st.sidebar.button("🚀 Fetch & Review PR"):
     with st.spinner("Fetching PR diff..."):
         diff_text = fetch_pr_diff(repo_owner, repo_name, pr_number, github_token)
 
     if diff_text.startswith("Error"):
         st.error(diff_text)
     else:
-        st.success("Fetched PR diff successfully!")
-        code = diff_text  # Fill into the text area
-        st.code(diff_text, language="diff")
+        st.success("✅ PR diff fetched successfully!")
+        
+        # Display the diff for reference
+        with st.expander("🔍 View Raw PR Diff"):
+            st.code(diff_text, language="diff")
 
-if st.button("Review Code"):
-    if code.strip():
-        with st.spinner("Analyzing with Hugging Face model..."):
-            feedback = review_code(code)
-            st.success("Code Review:")
-            st.markdown(feedback)
-    else:
-        st.warning("Please enter or fetch some code first.")
+        # Review with LLM
+        with st.spinner("Analyzing code with Hugging Face model..."):
+            feedback, improved_code = review_code(diff_text)
+
+        # Show results
+        st.subheader("💡 Review Feedback")
+        st.markdown(feedback)
+
+        st.subheader("✨ Suggested Improved Code")
+        st.code(improved_code, language="python")