backend/csv_processor.py

    # backend/csv_processor.py
    
import pandas as pd
    
def process_csv_for_dashboard(filepath: str) -> pd.DataFrame:
    """
    Reads a CSV file and returns its content as a pandas DataFrame.

    Args:
        filepath (str): The path to the CSV file.

    Returns:
        pd.DataFrame: A DataFrame containing the CSV data.
                        Returns an empty DataFrame if the file cannot be read.
    """
    try:
        df = pd.read_csv(filepath)
        # You might want to add more processing here, e.g.,
        # df.dropna(inplace=True)
        # df.columns = [col.lower().replace(' ', '_') for col in df.columns]
        return df
    except FileNotFoundError:
        print(f"Error: CSV file not found at {filepath}")
        return pd.DataFrame()
    except Exception as e:
        print(f"Error processing CSV file: {e}")
        return pd.DataFrame()

# Example Usage (for testing this module independently)
if __name__ == "__main__":
    print("\n--- Testing CSV Processing ---")
    # Create a dummy CSV file for testing
    dummy_csv_content = """Name,Age,City,Review
John Doe,30,New York,This movie was amazing!
Jane Smith,24,Los Angeles,It was okay, nothing special.
Peter Jones,45,Chicago,Absolutely dreadful, what a waste of time.
Alice Brown,22,Houston,I'm so glad I spent my money on this. (sarcastic)
"""
    with open("dummy_reviews.csv", "w") as f:
        f.write(dummy_csv_content)

    df = process_csv_for_dashboard("dummy_reviews.csv")
    print("Dummy CSV DataFrame:")
    print(df.head())

    # Clean up dummy file
import os
if os.path.exists("dummy_reviews.csv"):
    os.remove("dummy_reviews.csv")