#!/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="1.0"

DEFAULT_CONFIG_DIR="/usr/share/dwmbar"
export DEFAULT_CONFIG_DIR
DEFAULT_MODULES_DIR="$DEFAULT_CONFIG_DIR/modules/"
export DEFAULT_MODULES_DIR
DEFAULT_BAR_LOCATION="$DEFAULT_CONFIG_DIR/bar.sh"
export DEFAULT_BAR_LOCATION
DEFAULT_CONFIG_LOCATION="$DEFAULT_CONFIG_DIR/config"
export DEFAULT_CONFIG_LOCATION

CONFIG_DIR="/home/$USER/.config/dwmbar/"
export CONFIG_DIR

CUSTOM_DIR="$CONFIG_DIR/custom/"
export CUSTOM_DIR

CONFIG_FILE="$CONFIG_DIR/config"
if [[ ! -f "$CONFIG_FILE" ]]; then
	CONFIG_FILE=$DEFAULT_CONFIG_LOCATION
fi
export CONFIG_FILE

CACHE_DIR="$HOME/.cache/dwmbar/"
export CACHE_DIR

INTERNET=1 # No internet
export INTERNET

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

copy_usr_to_home(){
	mkdir -p "$CUSTOM_DIR"
	cp -r "$DEFAULT_CONFIG_LOCATION" "$CONFIG_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 [[ ! -d "$CACHE_DIR" ]]; then
		mkdir -p "$CACHE_DIR"
    fi

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

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

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

check_internet() {
		wget --spider -q --timeout=2 www.google.com
		if [[ $? -eq 0 ]]; then
			echo 0
		else
			echo 1
		fi
}

check_files

while :; do
	date=$(date +'%S')
	if [ $(( 10#$date % 5 )) -eq 0 ]; then
		INTERNET=$(check_internet)
	fi
	xsetroot -name "$(exec $DEFAULT_BAR_LOCATION)"
done