#!/bin/bash
#
# Description : Synergy client allow you to share one keyboard and mouse with computers on LAN
# Author      : Jose Cerrejon Gonzalez (ulysess@gmail_dot._com)
# Version     : 1.0 (17/Sep/14)
# TODO: Refactor code, add Barrier https://github.com/debauchee/barrier
#
clear
IP_RANGE=$(/sbin/ip route | awk '/default/ { print $3 }' | sed 's/\.[0-9]*$//')
SERVER_IP='SERVER_IP'
tempfile=$(tempfile 2>/dev/null) || tempfile=/tmp/mnuopt$$

trap "rm -f $tempfile" 0 1 2 5 15

CHOOSE_IP() {
    echo -e "\nScanning LAN, please wait..."
    OPTION=$(echo $IP_RANGE.{1..254} | xargs -n1 -P0 ping -c1 | grep "bytes from" | tr -d ':' | awk '{print $4" IP"}')
    # for i in {1..254} ;do (ping 192.168.1.$i -c 1 -w 5  >/dev/null && echo "192.168.1.$i" &) ;done
    #| cut -d ":" -f 1

    dialog --title '[ Synergy Server ]' --clear \
        --menu "Choose Synaptic Server IP from your LAN:" 10 55 10 $OPTION 2>"${tempfile}"

    SERVER_IP=$(<"${tempfile}")
}

RUN_ON_BOOT() {
    dialog --title '[ Synergy Server ]' \
        --yes-label "Yes" \
        --no-label "No" \
        --yesno "Do you want to run Synergy Client on boot?" 5 46

    response=$?
    case $response in
    0) sudo sed -i '$i synergyc --daemon '"${SERVER_IP}" /etc/rc.local ;;
    1)
        clear
        echo "You choose NOT to run on boot..."
        ;;
    255) echo "[ESC] key pressed." ;;
    esac
}

echo -e "Installing Synergy...\n=====================\n · Synergy allow you to share one keyboard and mouse to computers on LAN.\n · You need PC with a Synergy Server."

whereis -B "/usr/sbin" "/usr/local/sbin" "/sbin" "/usr/bin" "/usr/local/bin" "/bin" -b synergyc | grep -i "/synergyc" >/dev/null 2>&1
is_installed=$?
if [ $is_installed -eq 1 ]; then
    sudo apt-get install -y synergy
else
    read -p " · Synergy already installed!. Continue? [y/n] " optionhgh
    case "$option" in
    n*)
        read -p "Press [ENTER] To Continue..."
        exit
        ;;
    esac
fi

CHOOSE_IP
RUN_ON_BOOT

echo -e "\nDone! Type: synergyc --daemon $SERVER_IP to run manually on Desktop."
read -p "Press [ENTER] To Continue..."