import json
import argparse
from datetime import datetime, timezone


def process_json_file(filename):
    # Read JSON data from file
    with open(filename, "r") as file:
        data = json.load(file)

    # Process each game
    for game in data["response"]["games"]:
        # Convert playtime from minutes to hours
        game["playtime_forever"] /= 60

        # Convert Unix timestamp to readable date and time in UTC
        if game["rtime_last_played"] != 0:
            game["rtime_last_played"] = datetime.fromtimestamp(
                game["rtime_last_played"], timezone.utc
            ).strftime("%Y-%m-%d %H:%M:%S")
        else:
            game["rtime_last_played"] = "Not Played"

    # Return the modified data
    return data


def main():
    parser = argparse.ArgumentParser(
        description="Process a JSON file containing game data."
    )
    parser.add_argument("filename", help="JSON file to be processed")
    args = parser.parse_args()

    # Process the JSON file
    modified_data = process_json_file(args.filename)

    # Print the modified data
    print(json.dumps(modified_data, indent=4))


if __name__ == "__main__":
    main()