#!/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 [[ ! $EUID -eq 0 ]];then
    if [ -x "$(command -v sudo)" ];then
        exec sudo bash "$0" "$@"
        exit $?
    else
        echo "::: sudo is needed to run pihole commands.  Please run this script as root or install sudo."
        exit 1
    fi
fi

whitelistFunc() {
    shift
    /opt/pihole/whitelist.sh "$@"
    exit 0
}

blacklistFunc() {
    shift
    /opt/pihole/blacklist.sh "$@"
    exit 0
}

debugFunc() {
    /opt/pihole/piholeDebug.sh
    exit 0
}

flushFunc() {
    /opt/pihole/piholeLogFlush.sh
    exit 0
}


updatePiholeFunc() {
    /opt/pihole/update.sh
    exit 0
}

reconfigurePiholeFunc() {
    /etc/.pihole/automated\ install/basic-install.sh --reconfigure
    exit 0;
}

updateGravityFunc() {
    /opt/pihole/gravity.sh "$@"
    exit 0
}

setupLCDFunction() {
    /opt/pihole/setupLCD.sh
    exit 0
}

queryFunc() {
    domain=$2
    for list in /etc/pihole/list.*
    do
        count=$(grep ${domain} $list | wc -l)
        echo "::: ${list} (${count} results)"
        if [[ ${count} > 0 ]]; then
            grep ${domain} ${list}
        fi
        echo ""
    done
    exit 0
}

chronometerFunc() {
    shift
    /opt/pihole/chronometer.sh "$@"
    exit 0
}


uninstallFunc() {
    /opt/pihole/uninstall.sh
    exit 0
}

versionFunc() {
    shift
    /opt/pihole/version.sh "$@"
    exit 0
}

helpFunc() {
	cat << EOM
::: Control all PiHole specific functions!
:::
::: Usage: pihole [options]
:::		Add -h after -w (whitelist), -b (blacklist), or -c (chronometer)  for more information on usage
:::
::: Options:
:::  -w, whitelist            Whitelist domains
:::  -b, blacklist            Blacklist domains
:::  -d, debug                Start a debugging session if having trouble
:::  -f, flush                Flush the pihole.log file
:::  -up, updatePihole        Update Pi-hole
:::  -g, updateGravity        Update the list of ad-serving domains
:::  -s, setupLCD             Automatically configures the Pi to use the 2.8 LCD screen to display stats on it
:::  -c, chronometer          Calculates stats and displays to an LCD
:::  -h, help                 Show this help dialog
:::  -v, version              Show current versions
:::  -q, query                Query the adlists for a specific domain
:::  uninstall                Uninstall Pi-Hole from your system :(!
EOM
    exit 1
}

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

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