Update app.py

app.py

@@ -1,124 +1,58 @@
-import os
 import streamlit as st
+import os
 from google import genai
 from io import StringIO
-import prompts # Assuming prompts.py is in the same directory
-
-api_key = os.environ.get("GOOGLE_API_KEY")
-
-if not api_key:
-    # Fallback for local testing (if you have a local secrets.toml)
-    try:
-        api_key = st.secrets["GOOGLE_API_KEY"]
-    except:
-        st.error("Missing GOOGLE_API_KEY. Please add it to your Space Secrets.")
-        st.stop()
-
-client = genai.Client(api_key=api_key)
+import prompts # Your refactored prompts.py
 
-st.set_page_config(page_title="SQL AI Assistant", layout="wide")
+st.set_page_config(page_title="Gemini SQL Pro", layout="wide")
 
-# --- 1. Sidebar: Configuration & Context ---
-st.sidebar.title("🛠️ Database Context")
+# 1. Sidebar Context
+st.sidebar.title("🛠️ Settings")
+dialect = st.sidebar.selectbox("Dialect", ["PostgreSQL", "MySQL", "SQLite", "Snowflake"])
+db_name = st.sidebar.text_input("DB Name", "prod_database")
 
-# Dialect and DB Name
-dialect = st.sidebar.selectbox("SQL Dialect", ["PostgreSQL", "MySQL", "SQLite", "BigQuery", "Snowflake"])
-db_name = st.sidebar.text_input("Database Name", placeholder="e.g. production_db")
+# Schema Upload Logic
+st.sidebar.subheader("📄 Schema")
+uploaded_file = st.sidebar.file_uploader("Upload DDL (.sql)", type=["sql", "txt"])
+default_schema = uploaded_file.getvalue().decode("utf-8") if uploaded_file else ""
 
-# File Uploader for Schema
-st.sidebar.subheader("📄 Upload Schema")
-uploaded_file = st.sidebar.file_uploader("Upload .sql or .txt file", type=["sql", "txt"])
+schema = st.sidebar.text_area("Schema Context", value=default_schema, height=250)
+show_explain = st.sidebar.checkbox("Explain Logic", value=False)
 
-# Logic to handle schema input (Manual or Uploaded)
-initial_schema = ""
-if uploaded_file is not None:
-    initial_schema = uploaded_file.getvalue().decode("utf-8")
-
-schema = st.sidebar.text_area(
-    "Table Schemas (DDL)", 
-    value=initial_schema, 
-    placeholder="CREATE TABLE users (id INT, name TEXT...)", 
-    height=300
-)
-
-# Option to toggle explanations
-show_explanation = st.sidebar.checkbox("Show Logic Explanation", value=False)
-
-if st.sidebar.button("🗑️ Clear Chat History"):
-    st.session_state.messages = []
-    st.rerun()
-
-# --- 2. Initialize Gemini Client ---
-# Correcting the secret key name based on your error report
-try:
-    api_key = st.secrets["GOOGLE_API_KEY"]
-    client = genai.Client(api_key=api_key)
-except Exception as e:
-    st.error("API Key not found. Please ensure GOOGLE_API_KEY is set in Hugging Face Secrets.")
+# 2. Secret Handling (The Fix)
+api_key = os.environ.get("GOOGLE_API_KEY") or st.secrets.get("GOOGLE_API_KEY")
+if not api_key:
+    st.error("API Key missing!")
     st.stop()
 
-# --- 3. Main UI ---
-st.title("🤖 Gemini SQL Generator")
-st.caption("Generate, inspect, and download optimized SQL queries.")
+client = genai.Client(api_key=api_key)
 
-# Initialize session state for messages and the last generated query
-if "messages" not in st.session_state:
-    st.session_state.messages = []
-if "last_query" not in st.session_state:
-    st.session_state.last_query = ""
+# 3. Chat & Generation
+if "messages" not in st.session_state: st.session_state.messages = []
+if "last_sql" not in st.session_state: st.session_state.last_sql = ""
 
-# Display chat history
 for msg in st.session_state.messages:
-    with st.chat_message(msg["role"]):
-        if msg["role"] == "assistant":
-            st.code(msg["content"], language="sql")
-        else:
-            st.write(msg["content"])
+    st.chat_message(msg["role"]).write(msg["content"])
 
-# --- 4. Chat Input & Generation ---
-if prompt := st.chat_input("Show me all orders from the last 30 days..."):
-    # Add user message to state
+if prompt := st.chat_input("Ask for a query..."):
+    st.chat_message("user").write(prompt)
     st.session_state.messages.append({"role": "user", "content": prompt})
-    with st.chat_message("user"):
-        st.write(prompt)
 
-    # Format instructions from prompts.py
-    # Note: Ensure your SYSTEM_INSTRUCTION in prompts.py has {dialect}, {db_name}, {schema}, and {explain}
-    explain_text = "Provide a brief explanation after the code." if show_explanation else "Provide ONLY the code."
-    
-    full_system_msg = prompts.SYSTEM_INSTRUCTION.format(
-        dialect=dialect, 
-        db_name=db_name if db_name else "unspecified", 
-        schema=schema if schema else "No specific schema provided.",
-        explain=explain_text
+    explain_req = "Explain your steps." if show_explain else "Code only."
+    sys_msg = prompts.SYSTEM_INSTRUCTION.format(
+        dialect=dialect, db_name=db_name, schema=schema, explain=explain_req
     )
 
-    with st.spinner("Generating SQL..."):
-        try:
-            response = client.models.generate_content(
-                model="gemini-2.0-flash", # Using the latest flash model
-                config={'system_instruction': full_system_msg},
-                contents=prompts.USER_PROMPT_TEMPLATE.format(user_input=prompt)
-            )
-            
-            sql_output = response.text
-            st.session_state.last_query = sql_output
-            
-            # Add assistant response to state
-            st.session_state.messages.append({"role": "assistant", "content": sql_output})
-            with st.chat_message("assistant"):
-                st.code(sql_output, language="sql")
-        
-        except Exception as e:
-            st.error(f"Generation failed: {e}")
-
-# --- 5. Download Action ---
-if st.session_state.last_query:
-    st.divider()
-    st.download_button(
-        label="💾 Download Latest Query",
-        data=st.session_state.last_query,
-        file_name="generated_query.sql",
-        mime="text/x-sql",
-        use_container_width=True
-    )
+    with st.spinner("Gemini is thinking..."):
+        response = client.models.generate_content(
+            model="gemini-2.0-flash",
+            config={'system_instruction': sys_msg},
+            contents=prompt
+        )
+        st.session_state.last_sql = response.text
+        st.chat_message("assistant").code(response.text, language="sql")
+        st.session_state.messages.append({"role": "assistant", "content": response.text})
+
+# 4. Download
+if st.session_state.last_sql:
+    st.download_button("💾 Download SQL", st.session_state.last_sql, "query.sql")