#!/bin/bash

# Definitions
threshold_config=/sys/class/power_supply/BAT1/charge_control_end_threshold
print_help() {
    echo "Usage: ${0} (get|set) [level]"
    echo
    echo "  get  Gets the current battery charging limit"
    echo "  set  Sets the current battery charging limit to the provided level (set to 0 to disable battery charging limit)"
    echo
    echo "Please note that this script is made for Samsung Galaxy Book Computers and only works with Galaxy Book Extras module loaded and enabled."
    exit 1
}

# Check if file is present
if ! ([ -e $threshold_config ]); then
    echo "Couldn't find '${threshold_config}': No such file or directory"
    echo "Please ensure the concerned module is loaded correctly"
    exit 1
fi

# Check parameters
# get
if [ $# -eq 1 ] && [[ $1 == "get" ]]; then
    cat $threshold_config

# set (check level option)
elif [ $# -eq 2 ] && [[ $1 == "set" ]] && [ $2 -le 99 ] && [ $2 -ge 0 ]; then
    echo $2 | sudo tee $threshold_config
    if [ $? == 0 ]; then
        echo "Done"
        exit 0
    else
        exit 1
    fi

else
    print_help
fi