import json
import os
import pandas as pd

def load_mock_data(filepath):
    """
    Loads mock vulnerability dataset from a JSON file.
    """
    if not os.path.exists(filepath):
        raise FileNotFoundError(f"File not found: {filepath}")
    
    with open(filepath, 'r') as f:
        data = json.load(f)
    
    return data

def load_enriched_data(filepath):
    """
    Loads the enriched dataset from a JSON file.
    """
    if not os.path.exists(filepath):
        # Default fallback to current dir
        filepath = os.path.join(os.path.dirname(__file__), "enriched_data.json")
    
    with open(filepath, 'r') as f:
        data = json.load(f)
    
    return data

def to_dataframe(data):
    """
    Converts list of dicts to pandas DataFrame.
    """
    return pd.DataFrame(data)