import os
import streamlit as st
from azure.cosmos import CosmosClient, PartitionKey
from azure.storage.blob import BlobServiceClient
import requests

# Environment Variables
COSMOS_CONNECTION_STRING = os.getenv('COSMOS_CONNECTION_STRING')
BLOB_STORAGE_CONNECTION_STRING = os.getenv('BLOB_STORAGE_CONNECTION_STRING')

# Initialize Azure Cosmos DB Client
cosmos_client = CosmosClient.from_connection_string(COSMOS_CONNECTION_STRING)

# Initialize Azure Blob Storage Client
blob_service = BlobServiceClient.from_connection_string(BLOB_STORAGE_CONNECTION_STRING)


# Function to Get Containers and Items
def get_containers_and_items(database_name):
    database_client = cosmos_client.get_database_client(database_name)
    containers_info = []
    for container_properties in database_client.list_containers():
        container_name = container_properties['id']
        container_client = database_client.get_container_client(container_name)
        items = list(container_client.read_all_items())
        containers_info.append((container_name, items))
    return containers_info

# UI to List Containers and Items in Predefined Databases
st.subheader('List Containers and Items in Databases')

databases_to_list = ["ToDoList", "CopilotSampleDb"]
for db_name in databases_to_list:
    st.markdown(f"### Database: {db_name}")
    containers_info = get_containers_and_items(db_name)
    for container_name, items in containers_info:
        st.subheader(f'Container: {container_name}')
        for item in items:
            st.json(item)

selected_db_for_listing = st.text_input('Enter Database Name to List Containers and Items')
emoji_button = st.button('🔍 Retrieve Data')

if emoji_button:
    if selected_db_for_listing:
        containers_info = get_containers_and_items(selected_db_for_listing)
        for container_name, items in containers_info:
            st.subheader(f'Container: {container_name}')
            for item in items:
                st.json(item)
    else:
        st.error('Please enter a database name.')


        
# Streamlit UI
st.title('Azure Services Integration with Streamlit')

# Azure Cosmos DB - CRUD Operations
st.subheader('Azure Cosmos DB - CRUD Operations')
cosmos_db = st.text_input('Database Name')
cosmos_container = st.text_input('Container Name')
item_id = st.text_input("Item ID (for Read, Update, Delete)")
item_data = st.text_area("Item Data (JSON format, for Create and Update)")

if st.button('Create Item in Cosmos DB'):
    container = cosmos_client.get_database_client(cosmos_db).get_container_client(cosmos_container)
    container.create_item(item_data)

if st.button('Read Item from Cosmos DB'):
    container = cosmos_client.get_database_client(cosmos_db).get_container_client(cosmos_container)
    item = container.read_item(item_id, partition_key=PartitionKey(item_id))
    st.json(item)

# Azure Blob Storage - Upload/Download
st.subheader('Azure Blob Storage - Upload/Download')
blob_container = st.text_input('Blob Container')
blob_file = st.file_uploader('Upload file to Blob')

if blob_file is not None and st.button('Upload to Blob'):
    blob_client = blob_service.get_blob_client(container=blob_container, blob=blob_file.name)
    blob_client.upload_blob(blob_file.getvalue())

# Azure Functions - Trigger
st.subheader('Azure Functions - Trigger')
function_url = st.text_input('Function URL')

if st.button('Call Azure Function'):
    response = requests.get(function_url)
    st.write('Function Response:', response.text)