#!/bin/bash
# Pi-hole: A black hole for Internet advertisements
# (c) 2015, 2016 by Jacob Salmela
# Network-wide ad blocking via your Raspberry Pi
# http://pi-hole.net
# Controller for all pihole scripts and functions.
#
# Pi-hole 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.

# Must be root to use this tool
if [[ ! $EUID -eq 0 ]];then
	#echo "::: You are root."
#else
	#echo "::: Sudo will be used for this tool."
  # Check if it is actually installed
  # If it isn't, exit because the pihole cannot be invoked without privileges.
  if [[ $(dpkg-query -s sudo) ]];then
		export SUDO="sudo"
  else
    echo "::: Please install sudo or run this as root."
    exit 1
  fi
fi

function whitelistFunc {
	shift
	$SUDO /opt/pihole/whitelist.sh "$@"
	exit 1
}

function blacklistFunc {
	shift
	$SUDO /opt/pihole/blacklist.sh "$@"
	exit 1
}

function debugFunc {
	$SUDO /opt/pihole/piholeDebug.sh
	exit 1
}

function flushFunc {
	$SUDO /opt/pihole/piholeLogFlush.sh
	exit 1
}

function updateDashboardFunc {
	$SUDO /opt/pihole/updateDashboard.sh
	exit 1
}

function updateGravityFunc {
	$SUDO /opt/pihole/gravity.sh
	exit 1
}

function updatePiholeFunc {
	$SUDO /opt/pihole/updatePihole.sh
	exit 1
}

function setupLCDFunction {
	$SUDO /opt/pihole/setupLCD.sh
	exit 1
}

function chronometerFunc {
	shift
	$SUDO /opt/pihole/chronometer.sh "$@"
	exit 1
}


function uninstallFunc {
	$SUDO /opt/pihole/uninstall.sh
	exit 1
}

function helpFunc {
    echo "::: Control all PiHole specific functions!"
    echo ":::"
    echo "::: Usage: pihole [options]"
    printf ":::\tAdd -h after -w (whitelist), -b (blacklist), or -c (chronometer)  for more information on usage\n"
    echo ":::"
    echo "::: Options:"
    echo ":::  -w, whitelist 			Whitelist domains"
    echo ":::  -b, blacklist 			Blacklist domains"
    echo ":::  -d, debug 				Start a debugging session if having trouble"
    echo ":::  -f, flush 				Flush the pihole.log file"
    echo ":::  -u, updateDashboard		Update the web dashboard manually"
    echo ":::  -up, updatePihole		Update the Pi-hole core files manually"
    echo ":::  -g, updateGravity		Update the list of ad-serving domains"
   	echo ":::  -s, setupLCD 			Automatically configures the Pi to use the 2.8 LCD screen to display stats on it"
	echo ":::  -c, chronometer 			Calculates stats and displays to an LCD"
	echo ":::  -h, help 				Show this help dialog"
	echo ":::  uninstall				Uninstall Pi-Hole from your system!"
	exit 1
}

if [[ $# = 0 ]]; then
	helpFunc
fi

# Handle redirecting to specific functions based on arguments
case "$1" in
"-w" | "whitelist"			) whitelistFunc "$@";;
"-b" | "blacklist"			) blacklistFunc "$@";;
"-d" | "debug"				) debugFunc;;
"-f" | "flush"				) flushFunc;;
"-u" | "updateDashboard"	) updateDashboardFunc;;
"-up" | "updatePihole"		) updatePiholeFunc;;
"-g" | "updateGravity"		) updateGravityFunc;;
"-s" | "setupLCD"			) setupLCDFunction;;
"-c" | "chronometer"		) chronometerFunc "$@";;
"-h" | "help"				) helpFunc;;
"uninstall"					) uninstallFunc;;
*                    		) helpFunc;;
esac