#!/bin/bash
#* Written by Francesco Angelo Brisa, started January 2008.
#
# Copyright (C) 2008 Francesco Angelo Brisa
# email: [email protected]   -   [email protected]

VERSION="1.9-4"

LOGFILE=compilation_log.txt
LOGSEP="***********************************"
WHATTOBUILD=
UPDATE=
STABLE=
APT_GET_UPDATE="y"
DOWNLOAD_PACKAGES="y"
COMPILE="y"
RECONFIGURE="y"
DOWNLOAD="y"
JOPTION=""
OOPTION=""
DEBUG=""
WITH_EVENT_INPUT=""
WITH_OPENRTI=""


# FGCOM
FGCOM_UNSTABLE_GIT_BRANCH="master"
FGCOMGUI_STABLE_REVISION="46"

# Current developer revision: latest FlightGear GIT (2.5.0) with OSG 3.0.1
OSG_UNSTABLE_REVISION="http://www.openscenegraph.org/svn/osg/OpenSceneGraph/tags/OpenSceneGraph-3.0.1"

#######################################################
# set script to stop if an error occours
set -e


if [ "$DOWNLOAD_PACKAGES" = "y" ]
then

	echo -n "PACKAGE INSTALLATION ... " >> $LOGFILE

	LIBOPENALPACKAGE=$(apt-cache search libopenal | grep "libopenal. " | sed s/\ .*//)
	DISTRO_PACKAGES=$DISTRO_PACKAGES" "$LIBOPENALPACKAGE

	# checking linux distro and version to differ needed packages
			echo "not gonna perform an apt-get update"
		echo "not gonna perform an apt-get install ... "
	echo " OK" >> $LOGFILE
fi

COMPILE_BASE_DIR=.
#cd into compile base directory
cd "$COMPILE_BASE_DIR"

#get absolute path
CBD=$(pwd)

LOGFILE=$CBD/$LOGFILE

echo "DIRECTORY= $CBD" >> $LOGFILE
echo "$LOGSEP" >> $LOGFILE

if [ ! -d install ]
then
	mkdir install
fi

SUB_INSTALL_DIR=install
INSTALL_DIR=$CBD/$SUB_INSTALL_DIR

cd "$CBD"
mkdir -p build
#######################################################
# FGCOM
#######################################################
FGCOM_INSTALL_DIR=fgcom
INSTALL_DIR_FGCOM=$INSTALL_DIR/$FGCOM_INSTALL_DIR
cd "$CBD"

if [ 1 ]
then
	echo "****************************************" | tee -a $LOGFILE
	echo "**************** FGCOM *****************" | tee -a $LOGFILE
	echo "****************************************" | tee -a $LOGFILE

	#svn checkout svn://svn.dfn.de:/fgcom/trunk fgcom
	if [ "$DOWNLOAD" = "y" ]
	then

		FGCOM_STABLE_REVISION_=""
		if [ "$STABLE" = "STABLE" ]
		then
			FGCOM_STABLE_REVISION_=" -r $FGCOM_STABLE_REVISION"
		fi

		echo -n "git://gitorious.org/fg/fgcom.git ... " >> $LOGFILE

		if [ -d "fgcom" ]
		then
			echo "fgcom exists already."
	                git clone git://gitorious.org/fg/fgcom.git
		else
	                git clone git://gitorious.org/fg/fgcom.git
		fi

		cd fgcom
		git fetch origin
		if [ "$STABLE" = "STABLE" ]
		then
			# switch to stable branch
                        # create local stable branch, ignore errors if it exists
                        git branch -f $FGCOM_STABLE_FGOM_BRANCH origin/$FGCOM_STABLE_FGCOM_BRANCH 2> /dev/null || true
                        # switch to stable branch. No error is reported if we're already on the branch.
                        git checkout -f $FGCOM_STABLE_FGCOM_BRANCH
                        # get indicated stable version
                        git reset --hard $FGCOM_STABLE_REVISION
		else
			# switch to unstable branch
                        # create local unstable branch, ignore errors if it exists
                        git branch -f $FGCOM_UNSTABLE_GIT_BRANCH origin/$FGCOM_UNSTABLE_GIT_BRANCH 2> /dev/null || true
                        # switch to unstable branch. No error is reported if we're already on the branch.
                        git checkout -f $FGCOM_UNSTABLE_GIT_BRANCH
                        # pull latest version from the unstable branch
                        git pull
		fi

		echo " OK" >> $LOGFILE
		cd ..

#patch for new netdb.h version.
#		cat fgcom/iaxclient/lib/libiax2/src/iax.c | sed s/hp-\>h_addr,/hp-\>h_addr_list[0],/g > fgcom/iaxclient/lib/libiax2/src/iax_ok.c
#		mv fgcom/iaxclient/lib/libiax2/src/iax_ok.c fgcom/iaxclient/lib/libiax2/src/iax.c
	fi


	if [ "$RECONFIGURE" = "y" ]
	then
		cd "$CBD"
		mkdir -p build/fgcom

		cd "$CBD"/build/fgcom
		echo -n "RECONFIGURE FGCOM ... " >> $LOGFILE
		rm -f CMakeCache.txt
		cmake -D CMAKE_BUILD_TYPE="Release" -D "CMAKE_PREFIX_PATH=$INSTALL_DIR_PLIB;$INSTALL_DIR_SIMGEAR"  -D "CMAKE_INSTALL_PREFIX:PATH=$INSTALL_DIR_FGCOM" "$CBD"/fgcom   2>&1  | tee -a $LOGFILE

		echo " OK" >> $LOGFILE

	        cd "$CBD"/fgcom/src/

		cp Makefile Makefile.original
		cat Makefile | sed s/\\//MY_SLASH_HERE/g > Makefile_NOSLASHES

		# 1
		INSTALL_DIR_PLIB_NO_SLASHES=$(echo "$INSTALL_DIR_PLIB" | sed -e 's/\//MY_SLASH_HERE/g')
		cat Makefile_NOSLASHES | sed s/PLIB_PREFIX\ *:=\ *MY_SLASH_HEREusrMY_SLASH_HERElocalMY_SLASH_HEREsrcMY_SLASH_HEREfgfs-builderMY_SLASH_HEREinstall/PLIB_PREFIX\ :=\ $INSTALL_DIR_PLIB_NO_SLASHES/g > Makefile_temp
		mv -f Makefile_temp Makefile_NOSLASHES

		#2
		CXXFLAGS=$(cat Makefile_NOSLASHES | grep ^CXXFLAGS | head -n 1)
		CXXFLAGS2=$CXXFLAGS" -I $INSTALL_DIR_SIMGEAR/include -I $INSTALL_DIR_OSG/include"
		CXXFLAGS3=$(echo $CXXFLAGS2 | sed s/\\//MY_SLASH_HERE/g)

		cat Makefile_NOSLASHES | sed s/^CXXFLAGS\ *:=.*/"$CXXFLAGS3"/g  > Makefile_temp
		mv -f Makefile_temp Makefile_NOSLASHES

		#3
		LDFLAGS=$(cat Makefile_NOSLASHES | grep ^LDFLAGS | head -n 1)
		LDFLAGS2=$LDFLAGS" -L $INSTALL_DIR_SIMGEAR/lib"
		LDFLAGS3=$(echo $LDFLAGS2 | sed s/\\//MY_SLASH_HERE/g)

		cat Makefile_NOSLASHES | sed s/^LDFLAGS.*/"$LDFLAGS3"/g  > Makefile_temp
		mv -f Makefile_temp Makefile_NOSLASHES

		#4
		INSTALL_DIR_FGCOM_NO_SLASHS=$(echo "$INSTALL_DIR_FGCOM" | sed -e 's/\//MY_SLASH_HERE/g')
		INSTALL_BIN_FGCOM_NO_SLASHS="$INSTALL_DIR_FGCOM_NO_SLASHS""MY_SLASH_HEREbin"

		cat Makefile_NOSLASHES | sed s/INSTALL_BIN\ *:=\ *MY_SLASH_HEREusrMY_SLASH_HERElocalMY_SLASH_HEREbin/INSTALL_BIN\ :=\ $INSTALL_BIN_FGCOM_NO_SLASHS/g > Makefile_temp
		mv -f Makefile_temp Makefile_NOSLASHES

		cat Makefile_NOSLASHES | sed s/INSTALL_DIR\ *:=\ *MY_SLASH_HEREusrMY_SLASH_HERElocal/INSTALL_DIR\ :=\ $INSTALL_DIR_FGCOM_NO_SLASHS/g > Makefile_temp
		mv -f Makefile_temp Makefile_NOSLASHES


		#last
		cat Makefile_NOSLASHES | sed s/MY_SLASH_HERE/\\//g > Makefile

	fi

	cd "$CBD"/build/fgcom

	mkdir -p "$INSTALL_DIR_FGCOM"/bin

	if [ "$COMPILE" = "y" ]
	then
		echo "MAKE FGCOM" >> $LOGFILE
		echo "cmake --build . --config Release" >> $LOGFILE
		cmake --build . --config Release 2>&1 | tee -a $LOGFILE

		echo "INSTALL FGCOM" >> $LOGFILE
		cmake -DBUILD_TYPE=Release -P cmake_install.cmake 2>&1 | tee -a $LOGFILE
	fi
	cd "$CBD"

	echo "#!/bin/sh" > run_fgcom.sh
	echo "cd \$(dirname \$0)" >> run_fgcom.sh
	echo "cd $SUB_INSTALL_DIR/$FGCOM_INSTALL_DIR/bin" >> run_fgcom.sh
	echo "export LD_LIBRARY_PATH=../../$PLIB_INSTALL_DIR/lib:../../$OSG_INSTALL_DIR/lib:../../$SIMGEAR_INSTALL_DIR/lib" >> run_fgcom.sh
	echo "./fgcom -Sfgcom.flightgear.org.uk  \$@" >> run_fgcom.sh
	chmod 755 run_fgcom.sh

fi

echo "To start fgcom, run the run_fgcom.sh file"