import streamlit as st
from azure.cosmos import CosmosClient, PartitionKey
import os
import pandas as pd

st.set_page_config(layout="wide")

# Cosmos DB configuration
ENDPOINT = "https://acae-afd.documents.azure.com:443/"
SUBSCRIPTION_ID = "003fba60-5b3f-48f4-ab36-3ed11bc40816"
# You'll need to set these environment variables or use Azure Key Vault
DATABASE_NAME = os.environ.get("COSMOS_DATABASE_NAME")
CONTAINER_NAME = os.environ.get("COSMOS_CONTAINER_NAME")
Key = os.environ.get("Key")

def insert_record(record):
    try:
        response = container.create_item(body=record)
        return True, response
    except Exception as e:
        return False, str(e)

def call_stored_procedure(record):
    try:
        response = container.scripts.execute_stored_procedure(
            sproc="processPrompt",
            params=[record],
            partition_key=record['id']
        )
        return True, response
    except Exception as e:
        error_message = f"Error type: {type(e).__name__}\nError message: {str(e)}"
        if hasattr(e, 'sub_status'):
            error_message += f"\nSub-status: {e.sub_status}"
        if hasattr(e, 'response'):
            error_message += f"\nResponse: {e.response}"
        return False, error_message

def fetch_all_records():
    query = "SELECT * FROM c"
    items = list(container.query_items(query=query, enable_cross_partition_query=True))
    return pd.DataFrame(items)

def delete_records(ids):
    try:
        for id in ids:
            container.delete_item(item=id, partition_key=id)
        return True, f"Successfully deleted {len(ids)} records"
    except Exception as e:
        return False, f"Error deleting records: {str(e)}"

# Streamlit app
st.title("🌟 Cosmos DB Record Management")

# Initialize session state for selected IDs
if 'selected_ids' not in st.session_state:
    st.session_state.selected_ids = set()

# Login section
if 'logged_in' not in st.session_state:
    st.session_state.logged_in = False

if not st.session_state.logged_in:
    st.subheader("🔐 Login")
    input_key = Key  # Use the predefined Key instead of asking for user input
    if st.button("🚀 Login"):
        if input_key:
            st.session_state.primary_key = input_key
            st.session_state.logged_in = True
            st.rerun()
        else:
            st.error("Invalid key. Please check your environment variables.")
else:
    # Initialize Cosmos DB client
    client = CosmosClient(ENDPOINT, credential=st.session_state.primary_key)
    database = client.get_database_client(DATABASE_NAME)
    container = database.get_container_client(CONTAINER_NAME)

    # Fetch and display all records
    st.subheader("📊 All Records")
    df = fetch_all_records()
    
    # Add a checkbox column to the dataframe
    df['select'] = df['id'].isin(st.session_state.selected_ids)
    
    # Use Streamlit's data editor
    edited_df = st.data_editor(df, key="data_editor", disabled=["id", "name", "document", "evaluationText", "evaluationScore"])

    # Update selected_ids based on the edited dataframe
    selected_rows = edited_df[edited_df['select']]
    st.session_state.selected_ids = set(selected_rows['id'])

    # Display selected IDs with emoji checkboxes
    if st.session_state.selected_ids:
        st.markdown("### Selected Records:")
        for id in st.session_state.selected_ids:
            st.markdown(f"✅ {id}")
    else:
        st.markdown("### No Records Selected")

    # Add delete and download buttons
    col1, col2 = st.columns(2)
    with col1:
        if st.button("🗑️ Delete Selected"):
            if st.session_state.selected_ids:
                success, message = delete_records(list(st.session_state.selected_ids))
                if success:
                    st.success(message)
                    st.session_state.selected_ids.clear()  # Clear the selection after successful deletion
                else:
                    st.error(message)
                st.rerun()
            else:
                st.warning("No records selected for deletion.")

    with col2:
        if st.download_button("📥 Download Data", df.to_csv(index=False), "cosmos_db_data.csv", "text/csv"):
            st.success("Data downloaded successfully!")

    # Input fields for new record
    st.subheader("📝 Enter New Record Details")
    new_id = st.text_input("ID")
    new_name = st.text_input("Name")
    new_document = st.text_area("Document")
    new_evaluation_text = st.text_area("Evaluation Text")
    new_evaluation_score = st.number_input("Evaluation Score", min_value=0, max_value=100, step=1)

    col1, col2 = st.columns(2)
    
    # Insert Record button
    with col1:
        if st.button("💾 Insert Record"):
            record = {
                "id": new_id,
                "name": new_name,
                "document": new_document,
                "evaluationText": new_evaluation_text,
                "evaluationScore": new_evaluation_score
            }
            
            success, response = insert_record(record)
            if success:
                st.success("✅ Record inserted successfully!")
                st.json(response)
            else:
                st.error(f"❌ Failed to insert record: {response}")
            st.rerun()

    # Call Procedure button
    with col2:
        if st.button("🔧 Call Procedure"):
            record = {
                "id": new_id,
                "name": new_name,
                "document": new_document,
                "evaluationText": new_evaluation_text,
                "evaluationScore": new_evaluation_score
            }
            
            success, response = call_stored_procedure(record)
            if success:
                st.success("✅ Stored procedure executed successfully!")
                st.json(response)
            else:
                st.error(f"❌ Failed to execute stored procedure: {response}")

    # Logout button
    if st.button("🚪 Logout"):
        st.session_state.logged_in = False
        st.session_state.selected_ids.clear()  # Clear selected IDs on logout
        st.rerun()

    # Display connection info
    st.sidebar.subheader("🔗 Connection Information")
    st.sidebar.text(f"Endpoint: {ENDPOINT}")
    st.sidebar.text(f"Subscription ID: {SUBSCRIPTION_ID}")
    st.sidebar.text(f"Database: {DATABASE_NAME}")
    st.sidebar.text(f"Container: {CONTAINER_NAME}")