#!/usr/bin/env python3

import argparse
import configparser
import os

LOW = 0
MEDIUM = 1
HIGH = 2

LOW_THRESHOLD = 20
HIGH_THRESHOLD = 80

def generate_output(percentage: float, charging: bool, remaining: str):
    if percentage >= 0:
        status = LOW if percentage < LOW_THRESHOLD else MEDIUM if percentage < HIGH_THRESHOLD else HIGH
        color = "green" if charging == True else "blue" if status == HIGH else "orange" if status == MEDIUM else "red"
        icon = "battery-" + ("low" if status == LOW else "good" if status == MEDIUM else "full") + ("-charging" if charging else "")

        print(f"{percentage:.0f}% | color={color} iconName={icon}")
        print("---")
        print("Time to %s: %s" % ("full" if charging else "empty", remaining))
    else:
        print("Error! | color=red iconName=battery-missing")
        print("---")
        print("Data file corrupted or not found")

def read_values(datafile: os.PathLike):
    config = configparser.ConfigParser()
    config.read(datafile)
    return config.getfloat("BATTERY", "percentage"), config.getboolean("BATTERY", "charging"), config["BATTERY"]["remaining"]

if __name__ == "__main__":
    parser = argparse.ArgumentParser()
    parser.add_argument("datafile")
    args = parser.parse_args()
    try:
        generate_output(*read_values(args.datafile))
    except:
        generate_output(-1, False, "")