#!/usr/bin/env python3
"""
Visualization script using PandasAI.

This script creates a sample dataframe and uses PandasAI to generate
and save visualizations based on user queries.

Usage:
    python visualize.py "Create a bar chart of sales by region"

Requirements:
    - pandas
    - pandasai
    - matplotlib
"""

import os
import sys
import pandas as pd
import matplotlib.pyplot as plt
import pandasai as pai
from dotenv import load_dotenv


def create_sample_dataframe():
    """Create a sample dataframe with sales data."""
        # 'Region': ['North', 'South', 'East', 'West', 'North', 'South', 'East', 'West'],
        # 'Product': ['Widget', 'Widget', 'Widget', 'Widget', 'Gadget', 'Gadget', 'Gadget', 'Gadget'],
        # 'Sales': [150, 200, 120, 180, 90, 110, 95, 130],
        # 'Quarter': ['Q1', 'Q1', 'Q1', 'Q1', 'Q2', 'Q2', 'Q2', 'Q2'],
    data = {
        'Year': [2023, 2023, 2023, 2023, 2023, 2023, 2023, 2023]
    }
    return pai.DataFrame(data)


def visualize_data(df, query):
    """
    Generate visualization based on user query using PandasAI.

    Args:
        df: Pandas DataFrame containing the data
        query: User query string describing the desired visualization

    Returns:
        Path to the saved visualization file
    """
    # Initialize PandasAI with an LLM
    # Note: In a real application, you would need to set up your OpenAI API key
    # Either set OPENAI_API_KEY environment variable or pass it directly
    try:

        # llm = OpenAI(api_token=api_key)
        # pandas_ai = PandasAI(llm)

        load_dotenv()
        pai.api_key.set(os.environ["PANDAS_KEY"])

        df.chat(query)

        # Generate the visualization
        print(f"Generating visualization for query: '{query}'")

        # Save the current figure
        output_file = "visualization_output.png"
        plt.savefig(output_file)
        plt.close()

        print(f"Visualization saved to {output_file}")
        return output_file

    except Exception as e:
        print(f"Error generating visualization: {str(e)}")
        return None


def main():
    """Main function to run the visualization script."""
    # Get query from command line argument
    # if len(sys.argv) < 2:
    #     print("Usage: python visualize.py \"Your visualization query here\"")
    #     print("Example: python visualize.py \"Create a bar chart of sales by region\"")
    #     return

    # query = sys.argv[1]
    query = "Plot a bar chart of sales by region"

    # Create sample dataframe
    df = create_sample_dataframe()
    print("Sample DataFrame created:")
    print(df.head())

    # Generate and save visualization
    output_file = visualize_data(df, query)

    if output_file:
        print(f"Visualization process completed. Output saved to: {output_file}")
    else:
        print("Visualization process failed.")


if __name__ == "__main__":
    main()