AC_INIT(etc/configuration.xml.in)

if test "x$prefix" != xNONE; then
  RESOLVED_PREFIX=$prefix
else
  RESOLVED_PREFIX=$ac_default_prefix
fi

if test "x$exec_prefix" != xNONE; then
  RESOLVED_EXEC_PREFIX=$exec_prefix
else
  RESOLVED_EXEC_PREFIX=$RESOLVED_PREFIX
fi

dnl General
AC_MSG_CHECKING("for the lib/helm dir")
HELM_LIB_DIR=$RESOLVED_EXEC_PREFIX/lib/helm
AC_MSG_RESULT($HELM_LIB_DIR)

AC_MSG_CHECKING("for the etc/helm dir")
HELM_ETC_DIR=$RESOLVED_PREFIX/etc/helm
AC_MSG_RESULT($HELM_ETC_DIR)

AC_MSG_CHECKING("for the lib/helm dir")
HELM_SHARE_DIR=$RESOLVED_PREFIX/share/helm
AC_MSG_RESULT($HELM_SHARE_DIR)

dnl Only for GtkMathview XML configuration
HELM_DICTIONARY_PATH=$HELM_ETC_DIR/helm-dictionary.xml

AC_CHECK_PROG(HAVE_GTKMATHVIEW_CONFIG,gtkmathview-config,yes,no)
if test $HAVE_GTKMATHVIEW_CONFIG = no ; then
   AC_MSG_ERROR(Could not find gtkmathview-config)
fi
GTKMATHVIEW_PREFIX=`gtkmathview-config --prefix`

AC_MSG_CHECKING("for dictionary.xml")
AC_CACHE_VAL(helm_cv_GTKMATHVIEW_DICTIONARY_PATH,
   helm_cv_GTKMATHVIEW_DICTIONARY_PATH=$GTKMATHVIEW_PREFIX/share/gtkmathview/dictionary.xml
   if test ! -f $helm_cv_GTKMATHVIEW_DICTIONARY_PATH ; then
      echo ""
      AC_MSG_WARN(Could not find dictionary.xml. Where is it?)
      read helm_cv_GTKMATHVIEW_DICTIONARY_PATH
      RES="Asked"
   fi
)
GTKMATHVIEW_DICTIONARY_PATH=$helm_cv_GTKMATHVIEW_DICTIONARY_PATH
if test "$RES" != "Asked" ; then
   AC_MSG_RESULT($GTKMATHVIEW_DICTIONARY_PATH)
fi
AC_CACHE_SAVE

AC_MSG_CHECKING("for font-configuration.xml")
RES=""
AC_CACHE_VAL(helm_cv_GTKMATHVIEW_FONT_CONFIGURATION_PATH,
   helm_cv_GTKMATHVIEW_FONT_CONFIGURATION_PATH=$GTKMATHVIEW_PREFIX/share/gtkmathview/font-configuration.xml
   if test ! -f $helm_cv_GTKMATHVIEW_FONT_CONFIGURATION_PATH ; then
      echo ""
      AC_MSG_WARN(Could not find font-configuration.xml. Where is it?)
      read helm_cv_GTKMATHVIEW_FONT_CONFIGURATION_PATH
      RES="Asked"
   fi
)
GTKMATHVIEW_FONT_CONFIGURATION_PATH=$helm_cv_GTKMATHVIEW_FONT_CONFIGURATION_PATH
if test "$RES" != "Asked" ; then
   AC_MSG_RESULT($GTKMATHVIEW_FONT_CONFIGURATION_PATH)
fi
AC_CACHE_SAVE

AC_MSG_CHECKING("for t1.config")
RES=""
AC_CACHE_VAL(helm_cv_GTKMATHVIEW_T1_CONFIG_FILE,
   helm_cv_GTKMATHVIEW_T1_CONFIG_FILE=$GTKMATHVIEW_PREFIX/share/gtkmathview/t1.config
   if test ! -f $helm_cv_GTKMATHVIEW_T1_CONFIG_FILE ; then
      echo ""
      AC_MSG_WARN(Could not find t1.config. Where is it?)
      read helm_cv_GTKMATHVIEW_T1_CONFIG_FILE
      RES="Asked"
   fi
)
GTKMATHVIEW_T1_CONFIG_FILE=$helm_cv_GTKMATHVIEW_T1_CONFIG_FILE
if test "$RES" != "Asked" ; then
   AC_MSG_RESULT($GTKMATHVIEW_T1_CONFIG_FILE)
fi
AC_CACHE_SAVE

HELM_FONT_CONFIGURATION_PATH=$HELM_ETC_DIR/helm-font-configuration.xml

dnl Only for HELM XML configuration

AC_MSG_CHECKING("for the library path")
RES=""
AC_CACHE_VAL(helm_cv_HELM_LIBRARY_DIR,
  echo "Where should I put the downloaded library? Note: the directory and all the files and subdirectories recursively in it should be world writeable"
  read helm_cv_HELM_LIBRARY_DIR
  RES="Asked"
)
HELM_LIBRARY_DIR=$helm_cv_HELM_LIBRARY_DIR
if test "$RES" != "Asked" ; then
   AC_MSG_RESULT($HELM_LIBRARY_DIR)
fi
AC_CACHE_SAVE


CONFIGURATION_HELM_DIR=$HELM_LIBRARY_DIR/library

dnl CSC: ERROR: getters should download the DTDs
CONFIGURATION_DTD_DIR=$HELM_SHARE_DIR/dtd

CONFIGURATION_SERVERS_FILE=$HELM_LIBRARY_DIR/servers.txt
CONFIGURATION_URIS_DBM=$HELM_LIBRARY_DIR/urls_of_uris

AC_MSG_CHECKING("for the tmp dir")
RES=""
if test -d "/tmp" ; then
   CONFIGURATION_TMPDIR=/tmp
else
   AC_MSG_WARN(Could not find /tmp. What directory could I use instead?)
   read $CONFIGURATION_TMPDIR
   RES="Asked"
fi
if test "$RES" != "Asked" ; then
   AC_MSG_RESULT($CONFIGURATION_TMPDIR)
fi

AC_SUBST(HELM_LIB_DIR)
AC_SUBST(HELM_ETC_DIR)
AC_SUBST(HELM_LIBRARY_DIR)
AC_SUBST(HELM_DICTIONARY_PATH)
AC_SUBST(GTKMATHVIEW_DICTIONARY_PATH)
AC_SUBST(HELM_FONT_CONFIGURATION_PATH)
AC_SUBST(GTKMATHVIEW_FONT_CONFIGURATION_PATH)
AC_SUBST(GTKMATHVIEW_T1_CONFIG_FILE)
AC_SUBST(CONFIGURATION_HELM_DIR)
AC_SUBST(CONFIGURATION_DTD_DIR)
AC_SUBST(CONFIGURATION_SERVERS_FILE)
AC_SUBST(CONFIGURATION_URIS_DBM)
AC_SUBST(CONFIGURATION_TMPDIR)
AC_SUBST(CONFIGURATION_TMPDIR)

AC_OUTPUT(
[Makefile
 lib/configuration.pl
 etc/helm-math-engine-configuration.xml
 etc/configuration.xml
])