#!/usr/bin/env bash
#
# Generate the source directory for claws-mail-themes package
# from the theme tarballs in http://www.claws-mail.org/themes.php
#
# Copyright (c) 2006-2010 Ricardo Mones <ricardo@mones.org>
#                         Paul Mangan <paul@claws-mail.org>
#
# This program 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 program 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, write to the Free Software
# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
# 

test x$1 = x && echo "Error: version number not given" && exit 1;

VERS=$1
shift;
SITE=http://www.claws-mail.org
NAME=claws-mail-themes
DDIR=$NAME-$VERS
PAGE=themes.php
LIST=themes.list
WLOG=themes.wget.log

function getListFromPage()
{
  test -f ${PAGE} && rm -f ${PAGE};
  wget -q -a ${WLOG} ${SITE}/${PAGE}
  test ! -f ${PAGE} && echo "Error: couldn't get ${PAGE}." && exit 1;

  grep 'download.php?file=' ${PAGE} \
       | cut -f2 -d\" \
       > ${LIST}
}

function makeRoomForThemes()
{
  test -d ${DDIR} \
    && rm -rf ${DDIR} \
    && echo "Removing previous destination";
  mkdir ${DDIR};
}

function downloadThemes()
{
  for theme in `cat ${LIST} `;
  do tarf=`echo $theme | cut -f2 -d/ `;
     test $tarf = "png" \
         && tarf=`echo $theme | cut -f3 -d/ `;
     echo -n "Downloading... ";
     wget -q -a ${WLOG} -O ${DDIR}/$tarf ${SITE}/$theme
     test ! -f ${DDIR}/$tarf && echo "Error: couldn't get $tarf" && exit 1;
     pushd ${DDIR} > /dev/null
     tarops="";
     test ${tarf} = ${tarf/.tar.bz2/} && tarops="xzf" || tarops="xjf";
     echo -n "unpacking... " \
          && tar $tarops $tarf \
	  && echo -n "deleting tarball... " \
          && rm -f $tarf \
	  && echo "Ok ($tarf)";
     popd > /dev/null
  done;
}

function removeWhitespaces()
{
  cd ${DDIR};
  for dir in *;
  do test -d "$dir" \
       && test ! "${dir}" = "${dir/ /_}" \
       && mv "${dir}" "${dir// /_}"; 
  done;
  cd "..";
}

function fixPermissions()
{
  find ${DDIR} -type d -exec chmod 755 '{}' +
  find ${DDIR} -type f -exec chmod 644 '{}' +
}

function createProject()
{
  touch ${DDIR}/${NAME}
}

function createThemeMakefileAm()
{
  echo "Making $1";
  MA="/tmp/tmp.makefile.am";
  cd "$1"
  dir="$1";
  echo 'themedir = $(prefix)/share/claws-mail/themes/'${dir} > $MA
  echo "" >> $MA
  echo -n 'dist_theme_DATA =' >> $MA  
  count_png=`ls -1 *.png 2> /dev/null | wc -l `
  count_xpm=`ls -1 *.xpm 2> /dev/null | wc -l `
  ext="xpm"
  count=$count_xpm
  if [ $count_png -gt $count_xpm ];
  then ext="png";
       count=$count_png; 
  fi
  i=1;
  for px in `ls -1 *.${ext} `; 
  do if [ $i -lt $count ]; 
     then echo " $px \\" >> $MA; 
     else echo " $px" >> $MA; 
     fi; 
     i=$((1 + $i)); 
  done;
  echo "" >> $MA;
  count=`ls * | grep -v "\.${ext}$" | wc -l `;
  if [ $count -gt 0 ];
  then echo -n 'EXTRA_DIST =' >> $MA;
       i=1;
       for npx in `ls -1 * | grep -v "\.${ext}$" `;
       do if [ $i -lt $count ];
          then echo " $npx \\" >> $MA;
          else echo " $npx" >> $MA;
          fi;
          i=$((1 + $i));
       done;
       echo "" >> $MA;
  fi;
  mv $MA Makefile.am
  cd ".."
}

function createAutogenSh()
{
  cat<<EOA > ${DDIR}/autogen.sh
#!/bin/sh

aclocal \
  && automake --add-missing --foreign --copy \
  && autoconf \
  && ./configure --enable-maintainer-mode $@
EOA
  chmod +x ${DDIR}/autogen.sh
  echo "Created autogen.sh"
}

function createMakefileAm()
{
  cd ${DDIR}
  MA=Makefile.am
  if [ -f INSTALL ]
  then echo "EXTRA_DIST = INSTALL "${NAME} > $MA
  else echo "EXTRA_DIST = "${NAME} > $MA
  fi
  echo "" >> $MA
  echo -n "SUBDIRS =" >> $MA
  for dir in *;
  do test -d "$dir" && echo -n " ${dir}" >> $MA;
  done;
  cd ".."
  echo "Created Makefile.am"
}

function createConfigureAc()
{
  cd ${DDIR}
  CA=configure.ac
  echo 'AC_PREREQ(2.59d)' > $CA
  echo 'AC_INIT('${NAME}')' >> $CA
  echo 'AM_INIT_AUTOMAKE('${NAME}', '${VERS}')' >> $CA
  cat >> $CA <<EOC

AM_MAINTAINER_MODE

dnl Checks for programs.
AC_PROG_INSTALL

AC_OUTPUT([
Makefile
EOC
  # the list of Makefiles
  for dir in *;
  do test -d "$dir" \
       && echo "${dir}/Makefile" >> $CA \
       && createThemeMakefileAm "$dir";
  done;
  echo "])" >> $CA
  cd "..";
  echo "Created $CA";
}

function cleanMine()
{
  find ${DDIR} -name Makefile.am -delete
  rm -f \
     ${DDIR}/autogen.sh \
     ${DDIR}/configure.ac \
     ${DDIR}/${NAME}
}

function cleanGenerated()
{
  find ${DDIR} -name Makefile.in -delete
  find ${DDIR} -name Makefile -delete
  rm -rf ${DDIR}/autom4te.cache
  rm -f \
     ${DDIR}/aclocal.m4 \
     ${DDIR}/install-sh \
     ${DDIR}/missing \
     ${DDIR}/config.status \
     ${DDIR}/configure \
     ${DDIR}/config.log
}

case "$1" in
  --clean)
      cleanMine;      
      echo "Cleaned.";
    ;;
  --clean-all)
      cleanMine;
      cleanGenerated;
      echo "Cleaned all.";
    ;;
  --download)
      getListFromPage;
      makeRoomForThemes;
      downloadThemes;
      echo "Downloaded.";
    ;;
  --autotoolize)
      removeWhitespaces;
      fixPermissions;
      createProject;
      createAutogenSh;
      createMakefileAm;
      createConfigureAc;
      echo "Autotoolized.";
    ;;
  --all)
    $0 $VERS --download
    $0 $VERS --autotoolize
    echo "Done.";
    ;;
  *)
      echo "Syntax: ";
      echo "  $0 vers {--clean[-all]|--download|--autotoolize|--all}"
    ;;
esac