#!/bin/bash

# Copyright 2019 Archie Hilton <archie.hilton1@gmail.com>

# 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 3 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 <https://www.gnu.org/licenses/>.

VERSION="0.1"

DEFAULT_CONFIG_DIR="/usr/share/dwmbar"
DEFAULT_MODULES_DIR="$DEFAULT_CONFIG_DIR/modules"
DEFAULT_RC_LOCATION="$DEFAULT_CONFIG_DIR/dwmbarrc"

RC_LOCATION="/home/$USER/.config/dwmbar/dwmbarrc"
CONFIG_DIR="/home/$USER/.config/dwmbar"
MODULES_DIR="$CONFIG_DIR/modules"
CUSTOM_DIR="$MODULES_DIR/custom"
DWMBARRC="$CONFIG_DIR/dwmbarrc"
CACHE_DIR="$CONFIG_DIR/.cache"

print_help(){
	echo "dwmbar $VERSION
-v	Display this help message.
-c	Copy default files to /home/$USER/.config/dwmbar
"
}

copy_usr_to_home(){
	[[ ! -d $CONFIG_DIR ]] && cp -r /usr/share/dwmbar $CONFIG_DIR
	[[ ! -f $DWMBARRC ]] && cp /usr/share/dwmbar/dwmbarrc $DWMBARRC
	[[ ! -d $MODULES_DIR ]] && cp /usr/share/dwmbar/modules $MODULES_DIR
	[[ ! -d $CUSTOM_DIR ]] && mkdir $CUSTOM_DIR
	[[ ! -d $CACHE_DIR ]] && mkdir $CACHE_DIR
}

check_files(){
	if [[ ! -d $DEFAULT_CONFIG_DIR ]]; then
		echo "$DEFAULT_CONFIG_DIR does not exist." > /dev/stderr
		exit 1
	fi

	if [[ ! -d $DEFAULT_MODULES_DIR ]]; then
		echo "$DEFAULT_MODULES_DIR does not exist." > /dev/stderr
		exit 1
	fi

	if [[ ! -f $DEFAULT_RC_LOCATION ]]; then
		echo "$DEFAULT_RC_LOCATION does not exist." > /dev/stderr
		exit 1
	fi
}

while getopts 'v' flag; do
	case "${flag}" in
		v) 	print_help
			exit 0				;;
		c)	copy_usr_to_home
			exit 0				;;
	esac
done

check_files

while :; do
	xsetroot -name "$(exec $RC_LOCATION)"
done