#!/bin/ksh

#--------------------------------------------------------------------------------#
# This file is part of PALM.
#
# PALM 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.
#
# PALM 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
# PALM. If not, see <http://www.gnu.org/licenses/>.
#
# Copyright 1997-2014  Leibniz Universitaet Hannover
#--------------------------------------------------------------------------------#
#
# Current revisions:
# -----------------
#
# Former revisions:
# -----------------
# $Id: compile_tutorial 1310 2014-03-14 08:01:56Z sward $
#
# 1046 2012-11-09 14:38:45Z maronga
# code put under GPL (PALM 3.9)
#
# Typo removed
# 981 2012-08-09 14:57:44Z maronga
#
# 915 2012-05-30 15:11:11Z maronga
# Initial revision
#
# Description:
# ------------
# This script compiles all LaTeX files that are located in TUTORIAL/SOURCE/.
# Three PDFs are generated for each source file: 
# the lecture version has a step-by-step layout, the handout version contains 
# lines for notes, the web version can contain additional comments by the 
# authors and has no step-by-step layout.
# If a file is given as input parameter, only this file will be compiled.
#
# Execution:
# ----------
# compile_tutorial                 --> compiles all *.tex files in directory.
# compile_tutorial -f filename.tex --> compiles filename.tex only.
#------------------------------------------------------------------------------!

    cycles=3
    debug=false
    file=""

    full_name=`readlink -f $0`
    directory="$(dirname $full_name)/../TUTORIAL/SOURCE"
    output_dir="$(dirname $full_name)/../TUTORIAL"
    cd $directory

    while  getopts  :df: option
    do
       case  $option  in
          (d)   debug=true;;
          (f)   file=$OPTARG;;
          (\?)  printf "\n  +++ unknown option $OPTARG \n"
                printf "\n  --> type \"$0 ?\" for available options \n"
                locat=parameter;exit;;
       esac
    done

    shift OPTIND-1


#   Print help
    if [[ "$1" = "?" ]]
    then
       (printf "\n  *** compile_tutorial can be called as follows:\n"
        printf "\n     compile_tutorial  -d  -f..\n"
        printf "\n     Description of available options:\n"
        printf "\n      Option      Description                                 Default-Value"
        printf "\n        -d        show all debug output                               false"
        printf "\n        -f        Filename (single file compilation mode)                \"\""
        printf "\n         ?        this outline \n\n") | more
        exit
    fi

    if [[ "$file" != "" ]] then
       file_list=`readlink -f $(basename $file)`
    else
       file_list="$directory/*.tex"
    fi


    if [[ ! -d $output_dir/LECTURE ]] then
       printf " $output_dir/LECTURE will be created.\n"
       mkdir -p $output_dir/LECTURE
    fi

    if [[ ! -d $output_dir/HANDOUT ]] then
       printf " $output_dir/HANDOUT will be created.\n"
       mkdir -p $output_dir/HANDOUT
    fi

    if [[ ! -d $output_dir/WEB ]] then
       printf " $output_dir/WEB will be created.\n"
       mkdir -p $output_dir/WEB
    fi

    for i in $file_list;
    do 
       if [[ "$(echo $(basename $i)|cut -c1-6)" != "header" ]] then
          printf "\n Compiling $i.\ Please wait..."

#         Check if file exists
          if [[ ! -f "$i" ]] then
             printf " error."
             printf "\n File $i does not exist. Skipping..."
             break
          fi

          compiling_type="LECTURE"
          for (( j=0; j<=2; j+=1 ))
          do
             rm -rf tmp_dir
             mkdir tmp_dir
             cp header_${compiling_type}.tex header_tmp.tex
             for (( k=1; k<=$cycles; k+=1 ))
             do
                if ( $debug ) then
                   printf "\n pdflatex output:\n\n\n"
                   pdflatex -halt-on-error -output-directory=tmp_dir $i
                   if [[ "$?" != "0" ]] 
                   then
                      printf "\n\n Compilation aborted. Please check your source code.\n"
                      rm -rf tmp_dir
                      exit
                    fi
                else
                   pdflatex -halt-on-error -output-directory=tmp_dir $i  2>&1 > error_file

                   if [[ "$?" != "0" ]] 
                   then
                      printf " error."
                      printf "\n The following error occured during the compilation:\n\n\n"
                      cat error_file |grep "Error"
                      printf "\n\n Compilation aborted. Please check your source code.\n"
                      rm -rf tmp_dir
                      rm error_file
                      exit
                   fi
                fi
                mv tmp_dir/*.pdf $output_dir/$compiling_type
             done
             if [[ "$compiling_type" = "LECTURE" ]]
             then
                compiling_type="WEB"
             elif [[ "$compiling_type" = "WEB" ]]
             then
                compiling_type="HANDOUT"
             fi
          done  
          printf " done."
       fi

#      Cleaning up
       if [[ -f header_tmp.tex ]] then
          rm header_tmp.tex
       fi
       if [[ -f error_file ]] then
          rm error_file
       fi
       if [[ -d tmp_dir ]] then
          rm -rf tmp_dir
       fi

    done

    printf "\n\n *** All actions finished.\n"

exit