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

# Initialize Azure Clients
COSMOS_CONNECTION_STRING = os.getenv('COSMOS_CONNECTION_STRING')
BLOB_STORAGE_CONNECTION_STRING = os.getenv('BLOB_STORAGE_CONNECTION_STRING')
cosmos_client = CosmosClient.from_connection_string(COSMOS_CONNECTION_STRING)
blob_service = BlobServiceClient.from_connection_string(BLOB_STORAGE_CONNECTION_STRING)

# Function to Delete All Items in a Container
def delete_all_items_in_container(db_name, container_name):
    database_client = cosmos_client.get_database_client(db_name)
    container_client = database_client.get_container_client(container_name)
    
    for item in container_client.read_all_items():
        try:
            partition_key = '/id'
            container_client.delete_item(item=item['id'], partition_key=partition_key)
            st.write(f"Deleted Item: {item['id']}")
        except CosmosResourceNotFoundError:
            st.error(f"Item not found: {item['id']}")


# Display and Manage Cosmos DB Structure
def display_and_manage_cosmos_db():
    st.subheader('Azure Cosmos DB Structure')
    for db_properties in cosmos_client.list_databases():
        db_name = db_properties['id']
        st.markdown(f"#### Database: {db_name}")
        database_client = cosmos_client.get_database_client(db_name)

        for container_properties in database_client.list_containers():
            container_name = container_properties['id']
            st.markdown(f"- **Container**: {container_name}")
            container_client = database_client.get_container_client(container_name)

            for item in container_client.read_all_items():
                item_desc = f"  - Item: `{item['id']}`"
                st.markdown(item_desc)
                if 'file_name' in item:
                    st.image(item['file_name'])
                
                # Update and Delete buttons for each item
                if st.button(f"🗑️ Delete {item['id']}", key=f"delete_{item['id']}"):
                    partition_key = '/id'
                    container_client.delete_item(item=item['id'], partition_key=partition_key)
                    st.success(f"Deleted Item: {item['id']}")

# Insert PNG Images with Unique Identifiers
def insert_png_images_with_unique_ids():
    db_name = st.selectbox("Select Database", [db['id'] for db in cosmos_client.list_databases()])
    container_name = st.selectbox("Select Container", [container['id'] for container in cosmos_client.get_database_client(db_name).list_containers()])
    container_client = cosmos_client.get_database_client(db_name).get_container_client(container_name)

    png_files = glob.glob('*.png')
    for file_name in png_files:
        unique_id = f"{os.path.splitext(file_name)[0]}_{datetime.now().strftime('%Y%m%d%H%M%S')}"
        item_data = {"id": unique_id, "file_name": file_name}
        container_client.create_item(body=item_data)
        st.write(f"Inserted Item: {unique_id}")

# 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())
    st.success('File uploaded successfully.')

# 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)


# Display Cosmos DB Structure and Manage Items
display_and_manage_cosmos_db()

# Button to Insert PNG Images with Unique Identifiers
if st.button('Insert PNG Images with Unique IDs'):
    insert_png_images_with_unique_ids()

# Button to Delete All Items in a Container
db_name_to_delete = st.selectbox("Select Database to Delete From", [db['id'] for db in cosmos_client.list_databases()])
container_name_to_delete = st.selectbox("Select Container to Delete From", [container['id'] for container in cosmos_client.get_database_client(db_name_to_delete).list_containers()])

if st.button('Delete All Items in Container'):
    delete_all_items_in_container(db_name_to_delete, container_name_to_delete)
    st.success("All items deleted successfully.")