import requests
import logging

# Configure logging
logging.basicConfig(
    level=logging.INFO,
    format="%(asctime)s [%(levelname)s] %(name)s - %(message)s",
)
logger = logging.getLogger(__name__)

def fetch_data(url, record_id):
    """Fetches data for a given record_id from the API."""
    try:
        response = requests.get(f"{url}/{record_id}", headers={"Content-Type": "application/json"})
        if response.status_code == 200:
            output= response.json()  
            return output  
        else:
            logger.error(f"Failed to fetch {record_id}: {response.status_code}")
            return None
    except requests.RequestException as e:
        logger.error(f"Error fetching {record_id}: {e}")
        return None
    
def fetch_all_nodes_data(url, cluster_id):
    try:
        response = requests.get(f"{url}/{cluster_id}", headers={"Content-Type": "application/json"})
        if response.status_code == 200:
            output= response.json()  
            return output  
        else:
            logger.error(f"Failed to fetch {cluster_id}: {response.status_code}")
            return None
    except requests.RequestException as e:
        logger.error(f"Error fetching {cluster_id}: {e}")
        return None

def post_processing(data, url, url_get_for_graph):
    """Main function to fetch and extract required fields."""
    record_id = data.get('hd_key')
    # connected_records = data.get('matches', []) + [record_id]  # Matches + hd_key
    cluster_id = data.get('cluster_id')

    # Fetch main record data
    application_key = None
    hd_score_m1 = None
    if record_id:
        record_data = fetch_data(url, record_id)
        if record_data and 'data' in record_data:
            application_key = record_data['data'].get('application_key')
            hd_score_m1 = record_data['data'].get('hd_score_m1')

    # Fetch application_key for connected records
    connected_keys = []
    if cluster_id:
        response_obj = fetch_all_nodes_data(url_get_for_graph, cluster_id)
        if response_obj and "nodes" in response_obj:
            # Extract and filter application_keys
            all_keys = [
                node.get('data', {}).get('application_key')
                for node in response_obj['nodes']
                if node.get('data') and node['data'].get('application_key') is not None
            ]
            # Exclude the current application_key and limit to 500 entries
            connected_keys = [
                key for key in all_keys if key != application_key
            ][:500]
            
    if application_key is not None and application_key not in connected_keys:
        connected_keys.append(application_key)

    return {
        "application_key": application_key,
        "hd_score_m1": hd_score_m1,
        "connected_application_keys": connected_keys
    }