#!/bin/bash
#
# this should be run from the src directory, the layout is supposed to
# look like this:
#.../src/subsurface
#       /libgit2
#       /marble-source
#       /libdivecomputer
#
# the script will build these three libraries from source, even if
# they are installed as part of the host OS since we have seen 
# numerous cases where building with random versions (especially older,
# but sometimes also newer versions than recommended here) will lead
# to all kinds of unnecessary pain
#
# it installs the libraries and subsurface in the install-root subdirectory
# of the current directory (except on Mac where the Subsurface.app ends up
# in subsurface/build

SRC=$(pwd)
PLATFORM=$(uname)

if [[ ! -d "subsurface" ]] ; then
	echo "please start this script from the directory containing the Subsurface source directory"
	exit 1
fi

mkdir -p install-root
INSTALL_ROOT=$SRC/install-root

echo Building in $SRC, installing in $INSTALL_ROOT

# build libgit2

if [ ! -d libgit2 ] ; then
	if [[ $1 = local ]] ; then
		git clone $SRC/../libgit2 libgit2
	else
		git clone git://github.com/libgit2/libgit2
	fi
fi
cd libgit2
git checkout v0.22.0
mkdir -p build
cd build
cmake -DCMAKE_INSTALL_PREFIX=$INSTALL_ROOT -DCMAKE_BUILD_TYPE=Release -DBUILD_CLAR=OFF ..
cmake --build . --target install

if [ $PLATFORM = Darwin ] ; then
	# in order for macdeployqt to do its job correctly, we need the full path in the dylib ID
	cd $INSTALL_ROOT/lib
	NAME=$(otool -L libgit2.dylib | grep -v : | head -1 | cut -f1 -d\  | tr -d '\t')
	echo $NAME | grep / > /dev/null 2>&1
	if [ $? -eq 1 ] ; then
		install_name_tool -id "$INSTALL_ROOT/lib/$NAME" "$INSTALL_ROOT/lib/$NAME"
	fi
fi

cd $SRC

# build libdivecomputer

if [ ! -d libdivecomputer ] ; then
	if [[ $1 = local ]] ; then
		git clone $SRC/../libdivecomputer libdivecomputer
	else
		git clone -b Subsurface-4.4 git://subsurface-divelog.org/libdc libdivecomputer
	fi
fi
cd libdivecomputer
git checkout Subsurface-4.4
if [ ! -f configure ] ; then
	autoreconf --install
	./configure --prefix=$INSTALL_ROOT
fi
make -j4
make install

cd $SRC

# build libssrfmarblewidget

if [ ! -d marble-source ] ; then
	if [[ $1 = local ]] ; then
		git clone $SRC/../marble-source marble-source
	else
		git clone -b Subsurface-4.4 git://subsurface-divelog.org/marble marble-source
	fi
fi
cd marble-source
git checkout Subsurface-4.4
mkdir -p build
cd build
cmake -DCMAKE_BUILD_TYPE=Release -DQTONLY=TRUE -DQT5BUILD=ON \
	-DCMAKE_INSTALL_PREFIX=$INSTALL_ROOT \
	-DBUILD_MARBLE_TESTS=NO \
	-DWITH_DESIGNER_PLUGIN=NO \
	-DBUILD_MARBLE_APPS=NO \
	$SRC/marble-source
cd src/lib/marble
make -j4
make install

if [ $PLATFORM = Darwin ] ; then
	# in order for macdeployqt to do its job correctly, we need the full path in the dylib ID
	cd $INSTALL_ROOT/lib
	NAME=$(otool -L libssrfmarblewidget.dylib | grep -v : | head -1 | cut -f1 -d\  | tr -d '\t')
	echo $NAME | grep / > /dev/null 2>&1
	if [ $? -eq 1 ] ; then
		install_name_tool -id "$INSTALL_ROOT/lib/$NAME" "$INSTALL_ROOT/lib/$NAME"
	fi
fi

cd $SRC/subsurface
mkdir -p build
cd build
cmake -DCMAKE_BUILD_TYPE=Debug -DCMAKE_INSTALL_PREFIX=$INSTALL_ROOT ..
make -j4
make install