#!/bin/bash
PATH=/usr/local/bin:/usr/bin:/usr/local/sbin:/usr/sbin:/bin:/sbin
chkans=0
SERVERIP=$(ip a s eth0 | awk '/inet / {print$2}' | cut -d/ -f1)
RTFILE=/usr/local/bin/rt
home="/home/$SUDO_USER"

installed() {
hash $1 2>/dev/null
}

get_scripts() {
local script_name=$1
local script_dest=$2
local no_err=1
local attempts=0
until [ $no_err = 0 ]
  do
    rm -f $script_name
    wget --no-check-certificate https://raw.githubusercontent.com/arakasi72/rtinst/master/$script_name
    no_err=$?
    attempts=$(( $attempts + 1 ))
    if [ $attempts = 20 ]
      then
        echo "There is a problem downloading the scripts. Please check your network or there may be an issue with the github website"
        echo "If the Github website is down, you can try again later"
        exit 1
    fi
  done

if ! [ -z "$script_dest" ]
  then
    mv -f $script_name $script_dest
fi
}

ask_version() {
    while true
      do
      echo "Select version to upgrade/downgrade to"
      echo "1. libtorrent 0.13.2/rtorrent 0.9.2"
      echo "2. libtorrent 0.13.3/rtorrent 0.9.3"
      echo "3. libtorrent 0.13.4/rtorrent 0.9.4"
      echo "4. Quit"
      read -p "Select an option " answer
      case $answer in [1] ) libvers="libtorrent-0.13.2" && rtvers="rtorrent-0.9.2" && return 0 ;;
                      [2] ) libvers="libtorrent-0.13.3" && rtvers="rtorrent-0.9.3" && return 0 ;;
                      [3] ) libvers="libtorrent-0.13.4" && rtvers="rtorrent-0.9.4" && return 0 ;;
                      [4] ) exit ;;
                          * ) echo "Enter 1-4";;
      esac
    done
}

confirm_answer() {
while true
      do
      read -p "Sure you wish to install $libvers/$rtvers? " answer
      case $answer in [Yy]* ) chkans=1 && return 0 ;;
                      [Nn]* ) return 0 ;;
                          * ) echo "Enter y or n";;
      esac
    done

}

if ( installed rtorrent )
  then
    sudo echo "rtorrent detected"
    echo
  else
    echo "rtorrent NOT installed"
    echo "This script is for upgrading/downgrading only, not for initial install"
    exit 1
fi

while [ $chkans = 0 ]
do
ask_version
confirm_answer
done
echo
echo "Installing $libvers/$rtvers"

if ! [ -x $RTFILE ]
then
sudo wget --no-check-certificate https://raw.githubusercontent.com/arakasi72/rtinst/master/rt -O /usr/local/bin/rt && sudo chmod 755 /usr/local/bin/rt
fi


crontab -l | perl -nle 's/^([^#@])/# $1/;print' | crontab
rt stop
cd source
#svn co https://svn.code.sf.net/p/xmlrpc-c/code/stable xmlrpc
curl http://libtorrent.rakshasa.no/downloads/$libvers.tar.gz | tar xz
curl http://libtorrent.rakshasa.no/downloads/$rtvers.tar.gz | tar xz

#cd xmlrpc
#./configure --prefix=/usr --enable-libxml2-backend --disable-libwww-client --disable-wininet-client --disable-abyss-server --disable-cgi-server
#make
#sudo make install

cd ~/source/$libvers
./autogen.sh
./configure --prefix=/usr
make -j2
sudo make install

cd ~/source/$rtvers
./autogen.sh
./configure --prefix=/usr --with-xmlrpc-c
make -j2
sudo make install
sudo ldconfig

rt start
crontab -l | perl -nle 's/^#\s*([0-9*])/$1/;print' | crontab
echo
echo "$libvers/$rtvers installed"
echo
echo "Confirm at https://$SERVERIP/rutorrent"
echo
echo "Your .rtorrent.rc file, and download, watch, and .session directories have not been altered in any way"