configure

#!/bin/sh

# Copyright 24.03.2022 - 31.03.2022 Nicolai Brand
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License as
# published by the Free Software Foundation; either version 2 of the
# License, or (at your option) any later version.
#
# This program is distributed in the hope that it will be useful, but
# WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
# General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, see <http://www.gnu.org/licenses/>.

name="tomatoshell"
name_log="tomatoshell_log.csv"
bin_dir="/usr/local/bin"
data_dir="$HOME/.local/share/$name"


install() {
    clean 2> /dev/null
    sudo cp $name $bin_dir &&
    mkdir -p "$data_dir" &&
    touch "$data_dir/$name_log" &&
    cp etc/alarm.wav $data_dir &&
    exit 0
}


uninstall() {
    sudo rm "$bin_dir/$name" 2> /dev/null &&
    rm -rf "$data_dir" 2> /dev/null &&
    exit 0
}


clean() {
    rm "$data_dir/$name_log" &&
    touch "$data_dir/$name_log" &&
    cp etc/alarm.wav "$data_dir/"
}


print_help() {
    echo "usage: 'install', 'uninstall', 'clean'." &&
    echo "example: '$ ./configure install' to install the program." &&
    exit 1
}


[ "$#" -eq 0 ] && print_help

if [ "$1" = "install" ]
then
    install || exit 1
fi

if [ "$1" = "uninstall" ]
then 
    uninstall || exit 1
fi

[ "$1" = "clean" ] && clean && exit 0 || exit 1

# if program executions ends here it means the user typed an invalid argument
# i use printf here because echo -e is undefined in POSIX sh
printf "%s\n\n" "invalid argument '$1'." && print_help