#!/bin/sh
#
# Installs Opentox Webservices.
# Author: Christoph Helma, Andreas Maunz.

SELF=$(basename $0 -install)
OT_PREFIX="$HOME/opentox-ruby"
OT_CONFIG="$HOME/.opentox"
RUBY_VER="1.9.3-p125"
RUBY_DWL="http://ftp.ruby-lang.org/pub/ruby/1.9"
RUBY_DIR="$HOME/.rbenv/versions/$RUBY_VER"
FMINER_BRANCH="development"

[ "`id -u`" = "0" ] && echo "This script must be run as non-root." 1>&2 && exit 1

# check wd is root of service
DIR=`pwd`
if echo $DIR | grep "algorithm/bin" >/dev/null 2>&1 ; then cd ..; fi

# check main directories present
([ -d $OT_PREFIX ] && [ -d $OT_CONFIG ]) || (echo "Main directories missing." 1>&2 && exit 1)
[ -d $OT_PREFIX/opentox-server ] || (echo "Warning: opentox-server missing." 1>&2)

# load main config
! [ -f $OT_CONFIG/opentox-ui.sh ] && echo "Main config file missing." 1>&2 && exit 1 || . $OT_CONFIG/opentox-ui.sh 

# check utils
utils="git rbenv curl gem make"
for u in $utils; do
  eval `echo $u | tr "[:lower:]" "[:upper:]"`=`which $u` || (echo "'$u' missing. Install '$u' first." 1>&2 && exit 1)
done

# util functions
run_cmd ()
{
  local cmd="$1"; local title="$2"
  printf "%50s" "'$title'"
  if ! eval $cmd >>$LOG 2>&1 ; then  
    printf "%30s\n" "FAIL"
    echo "Last 10 lines of log:"
    tail -10 "$LOG"
    exit 1
  fi
  printf "%30s\n" "DONE"
}
install_ruby() {
  printf "\n%50s\n" "RUBY"
  local DIR=`pwd`
  if ! $RBENV versions $RUBY_VER | grep $RUBY_VER>/dev/null 2>&1; then
    [ -d $DIR/tmp ] || mkdir -p $DIR/tmp && cd $DIR/tmp
    ([ -d $DIR/tmp/ruby-$RUBY_VER ] || $CURL $RUBY_DWL/ruby-$RUBY_VER.tar.gz 2>/dev/null | tar xz) && cd ruby-$RUBY_VER
    cmd="./configure --prefix=$RUBY_DIR" && run_cmd "$cmd" "Configure"
    cmd="make -j2" && run_cmd "$cmd" "Make"
    [ -d $RUBY_DIR ] && rm -rf $RUBY_DIR
    cmd="make install" && run_cmd "$cmd" "Install"
  fi
  cd $DIR
  cmd="$RBENV rehash" && run_cmd "$cmd" "rbenv rehash"
  cmd="$RBENV local $RUBY_VER" && run_cmd "$cmd" "rbenv set ruby"
}
install_ob_ruby() {
  printf "\n%50s\n" "OB RUBY BINDINGS"
  local DIR=`pwd`
  SRC_DIR=$(dirname $(find $OT_PREFIX -name openbabel-ruby.cpp))
  [ -d "$SRC_DIR" ] || (echo "Sources not found." 1>&2 && exit 1)
  cd $SRC_DIR
  sed -i 's/Init_OpenBabel/Init_openbabel/g' openbabel-ruby.cpp # apply fix
  RUBY=`which ruby`
  cmd="$RUBY extconf.rb --with-openbabel-include=../../include --with-openbabel-lib=../../src/.libs" && run_cmd "$cmd" "Extconf ruby bindings"
  cmd="$MAKE" && run_cmd "$cmd" "Make OB ruby bindings"
  cmd="$MAKE install" && run_cmd "$cmd" "Install OB ruby bindings"
  cd $DIR
  cmd="$RBENV rehash" && run_cmd "$cmd" "rbenv rehash"
}
install_fminer() {
  printf "\n%50s\n" "FMINER"
  local DIR=`pwd`
  eval RUBY_INC="-I`dirname $RUBY_DIR/include/ruby*/*linux/ruby`\ -I`dirname $RUBY_DIR/include/ruby*/ruby`"
  eval OPBB_INC="-I`dirname $OT_PREFIX/openbabel*/include/openbabel*/openbabel`"
  cmd="$GIT submodule init" && run_cmd "$cmd" "Fminer Init"
  cmd="$GIT submodule update" && run_cmd "$cmd" "Fminer Update"
  cd "libfminer/libbbrc">>$LOG 2>&1
  $GIT checkout $FMINER_BRANCH>>$LOG 2>&1
  $GIT pull >>$LOG 2>&1
  cd - >>$LOG 2>&1
  cd "libfminer/liblast">>$LOG 2>&1
  $GIT checkout $FMINER_BRANCH>>$LOG 2>&1
  $GIT pull >>$LOG 2>&1
  cd - >>$LOG 2>&1
  for mylib in bbrc last; do
    cmd="sed -i 's,^INCLUDE_OB.*,INCLUDE_OB\ =\ $OPBB_INC,g' `pwd`/libfminer/lib$mylib/Makefile" && run_cmd "$cmd" "Makefile $mylib (OB)"
    cmd="sed -i 's,^INCLUDE_RB.*,INCLUDE_RB\ =\ $RUBY_INC,g' `pwd`/libfminer/lib$mylib/Makefile" && run_cmd "$cmd" "Makefile $mylib (RB)"
  done
  cd "libfminer/libbbrc">>$LOG 2>&1
  cmd="make ruby" && run_cmd "$cmd" "Make BBRC"
  cd - >>$LOG 2>&1
  cd "libfminer/liblast">>$LOG 2>&1
  cmd="make ruby" && run_cmd "$cmd" "Make LAST"
  cd - >>$LOG 2>&1
  cd "last-utils">>$LOG 2>&1
  $GIT checkout $FMINER_BRANCH>>$LOG 2>&1
  $GIT pull >>$LOG 2>&1
  cd $DIR
}
install_bundler() {
  $GEM list | grep bundler >/dev/null 2>&1 || (cmd="$GEM install bundler" && run_cmd "$cmd" "Install bundler")
  cmd="$RBENV rehash" && run_cmd "$cmd" "rbenv rehash"
  BUNDLER=`which bundle`
  cmd="$BUNDLER install" && run_cmd "$cmd" "Bundle install"
}


# # # Install

LOG="$OT_PREFIX/tmp/`basename $0`.log"
echo
echo "Installation ('$LOG'):"
echo

[ -d $OT_CONFIG/log ] || cmd="mkdir -p $OT_CONFIG/log" && run_cmd "$cmd" "Main log directory"
[ -d $OT_CONFIG/config/$SELF ] || cmd="mkdir -p $OT_CONFIG/config/$SELF" && run_cmd "$cmd" "$SELF config directory"

[ "`$RBENV local 2>/dev/null`" = "$RUBY_VER" ] || install_ruby
[ -n "`find $RUBY_DIR -name openbabel.so 2>/dev/null`" ] || install_ob_ruby
( [ -n "`find libfminer/ -name bbrc.so 2>/dev/null`" ] && [ -n "`find libfminer/ -name last.so 2>/dev/null`" ] ) || install_fminer

echo
install_bundler

# return to wd
cd "$DIR"