#!/bin/bash

#Created by Kris Occhipinti
#Aug 13th 2018
#http://filmsbykris.com

#Licensed under the GPLv3
#This 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 code 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 <http://www.gnu.org/licenses/>.
#
#Description:
#grabs text/url from last highlighted mouse selection
#and gets a tinyurl link and puts it into clipboard

function main(){
  #check for needed files/program
  check_depend

  #get last mouse selection
  URL="$(xclip -o)"

  echo "Starting URL $URL"

  #get tinyurl
  tinyURL="$(curl -s "http://tinyurl.com/create.php?url=$URL"|grep "The following URL" -A3|tail -1|awk -F\> '{print $3}'|sed 's,</b,,')"

  #check if a url is returned
  if [ "$tinyURL" = "" ];then echo "Error getting URL";exit 1;fi

  #put the tiny url in the clipboards for pasting
  echo "$tinyURL"|xclip
  echo "$tinyURL"|xclip -selection clipboard

  #output short link to shell
  echo "URL in Clipboard: $tinyURL"

  #give qrcode output to shell for scanning
  echo "$tinyURL"|qrencode -t UTF8

  #Display notification - Time out after 5 seconds
  notify-send -t 5000 "URL Shortened in Clipboard" "$tinyURL"
}

function check_depend(){
  #list for dependencies
  deps=( "/usr/bin/qrencode" "/usr/bin/xclip")
  packages=( qrencode xclip );

  #check for needed dependencies
  for i in "${deps[@]}"
  do
    if [ ! -f "$i" ];
    then
      echo "Attempting to install dependencies..."
      echo "Needed dependencies: ${packages[@]}"
      sudo apt-get install ${packages[@]} && break || (echo "Install of dependencies failed";exit 1) 
    fi
  done
}

main