#!/bin/bash
# Used to merge in the code needed to add TDB support to Greenstone. The script
# is responsible for updating both Makefile.in and source code files. You can
# later run 'disable_tdb.sh' to undo these changes.
# @author John Thompson, University of Waikato, NZ

echo
echo '===== Removing TDB support code from Greenstone ====='
echo

# Test that GSDLHOME is set otherwise we won't be able to find the required files
if [ "${GSDLHOME}x" == "x" ]
then
    echo 'Error! GSDLHOME not set. Please source setup.bash before running.'
    echo
    exit 0
fi
if [ "${GSDLOS}x" == "x" ]
then
    echo 'Error! GSDLOS not set. Please source setup.bash before running.'
    echo
    exit 0
fi

# Black magic to determine the actual name of the extension folder (in case I
# change from tdb-edit to tdb in the future (writing in hindsight))
EXTDIR=${PWD}
EXTNAME=${PWD##*/}

printf ' * Removing TDB support from common function library... '
# - Makefile.in
MAKEFILE="${GSDLHOME}/common-src/src/lib/Makefile.in"
sed -i 's:\(EXT_DEFINES\s*=.*\)\s-DUSE_TDB\(.*\):\1\2:' "${MAKEFILE}"
sed -i 's:\(EXT_INCLUDES\s*=.*\)\s-I'${EXTDIR}'/'${GSDLOS}'/include\(.*\):\1\2:' "${MAKEFILE}"
sed -i 's:\(EXT_SOURCES\s*=.*\)\stdbclass.cpp\(.*\):\1\2:' "${MAKEFILE}"
sed -i 's:\(EXT_OBJECTS\s*=.*\)\stdbclass.o\(.*\):\1\2:' "${MAKEFILE}"
# (note - NOT Makefile.in ...)
rm -f "${GSDLHOME}/common-src/src/lib/Makefile"
# - Remove symlink
rm -f "${GSDLHOME}/common-src/src/lib/tdbclass.h"
rm -f "${GSDLHOME}/common-src/src/lib/tdbclass.cpp"
# - Remove compiled files
rm -f "${GSDLHOME}/common-src/src/lib/tdbclass.o"
rm -f "${GSDLHOME}/common-src/src/lib/gsdllib.a"
echo 'Done!'

if [ "${GSDL3HOME}x" == "x" ]
then
    printf ' * Removing TDB support from collection server... '
    # - Makefile.in
    MAKEFILE="${GSDLHOME}/runtime-src/src/colservr/Makefile.in"
    sed -i 's:\(EXT_DEFINES\s*=.*\)\s-DUSE_TDB\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_INCLUDES\s*=.*\)\s-I$(GSDL_DIR)/ext/'${EXTNAME}'/'${GSDLOS}'/include\s*-I$(GSDL_DIR)/ext/'${EXTNAME}'/src/lib\(.*\):\1\2:' "${MAKEFILE}"
    rm -f "${GSDLHOME}/runtime-src/src/colservr/Makefile"
    # - collectset.cpp
    # BUG: leaves behind the newlines...
    SRCFILE="${GSDLHOME}/runtime-src/src/colservr/collectset.cpp"
    sed -i '/^#include "tdbclass.h" \/\/TDB/ d' "${SRCFILE}"
    sed -i '/^[ ]*if (infodbtype == "tdb") {db_ptr = new tdbclass(gsdlhome);} \/\/TDB/ d' "${SRCFILE}"
    sed -i '/^[ ]*if (infodbtype == "tdbserver") {db_ptr = new tdbclass(gsdlhome);} \/\/TDBServer/ d' "${SRCFILE}"
    # - collectserver.cpp
    SRCFILE="${GSDLHOME}/runtime-src/src/colservr/collectserver.cpp"
    sed -i '/^if (infodbtype == "tdb") { } \/\/ TDB Do nothing/ d' "${SRCFILE}"
    sed -i '/^if (infodbtype == "tdbserver") { } \/\/ TDBServer Do nothing/ d' "${SRCFILE}"
    # - Remove compiled files
    rm -f "${GSDLHOME}/runtime-src/src/colservr/gsdlcolservr.a"
    echo 'Done!'

    printf ' * Removing TDB support from Greenstone receptionist... '
    # - Makefile.in
    MAKEFILE="${GSDLHOME}/runtime-src/src/recpt/Makefile.in"
    sed -i 's:\(EXT_DEFINES\s*=.*\)\s-DUSE_TDB\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_INCLUDES\s*=.*\)\s-I$(GSDL_DIR)/ext/'${EXTNAME}'/'${GSDLOS}'/include\s*-I$(GSDL_DIR)/ext/'${EXTNAME}'/src/lib\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_LDFLAGS\s*=.*\)\s-L$(GSDL_DIR)/ext/'${EXTNAME}'/'${GSDLOS}'/lib\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_LIBS\s*=.*\)\s-ltdb\(.*\):\1\2:' "${MAKEFILE}"
    rm -f "${GSDLHOME}/runtime-src/src/recpt/Makefile"
    # - Remove compiled files
    rm -f "${GSDLHOME}/runtime-src/src/recpt/gsdlrecpt.a"
    rm -f "${GSDLHOME}/runtime-src/src/recpt/library.cgi"
    rm -f "${GSDLHOME}/cgi-bin/library.cgi"
    echo 'Done!'

    printf ' * Removing TDB support from OAI Server receptionist... '
    # - Makefile.in
    MAKEFILE="${GSDLHOME}/runtime-src/src/oaiservr/Makefile.in"
    sed -i 's:\(EXT_DEFINES\s*=.*\)\s-DUSE_TDB\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_INCLUDES\s*=.*\)\s-I$(GSDL_DIR)/ext/'${EXTNAME}'/'${GSDLOS}'/include\s*-I$(GSDL_DIR)/ext/'${EXTNAME}'/src/lib\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_LDFLAGS\s*=.*\)\s-L$(GSDL_DIR)/ext/'${EXTNAME}'/'${GSDLOS}'/lib\(.*\):\1\2:' "${MAKEFILE}"
    sed -i 's:\(EXT_LIBS\s*=.*\)\s-ltdb\(.*\):\1\2:' "${MAKEFILE}"
    rm -f "${GSDLHOME}/runtime-src/src/oaiservr/Makefile"
    # - Remove compiled files
    rm -f "${GSDLHOME}/runtime-src/src/oaiservr/oaiserver.cgi"
    rm -f "${GSDLHOME}/cgi-bin/oaiserver.cgi"
    echo 'Done!'
else
    echo ' * TDB runtime support offered via Java/JNI/TDB bridge.'
fi

echo
echo '====================================================='
echo
echo 'TDB support has now been removed from Greenstone.'
echo 'Please return to the main Greenstone directory and'
echo 'rerun:'
echo
if [ "${GSDL3HOME}x" == "x" ]
then
    echo ' ./configure <any required arguments>'
    echo ' make'
    echo ' make install'
else
    echo ' ant install'
fi
echo
echo 'to complete TDB removal.'
echo
echo 'Should you later wish to restore TDB support rerun:'
echo
echo ' ./enable_tdb.sh'
echo
echo '====================================================='
echo

exit 0