#!/bin/bash
set -e

function echo_usage {
	echo "usage: mconfigure [options] <package>"
	./configure -I
}

function create_conf {
	if [ -f "debian/$paket.cmake" ]
	then
		echo "compile_type=CMAKE" > debian/$paket.conf
	elif [ -f "debian/$paket.build" ]
	then
		if [ -f "debian/$paket.cpp" ]
		then
			echo "compile_type=CPP" > debian/$paket.conf
		else
			echo "compile_type=OLD" > debian/$paket.conf
		fi
	else
		echo "compile_type=NONE" > debian/$paket.conf
	fi
	
	if [ -f "$paket.control" -a -f "$paket.cp" ]
	then
		echo "target_type=DEB" >> debian/$paket.conf
	else
		echo "target_type=FILE" >> debian/$paket.conf
	fi
	echo "$paket.conf created."
}

##############################################################################
# Main program
##############################################################################

if [ ! -d debian ]
then
	echo "run mconfigure in the project base directory with a debian directory in it!"
	exit 2
fi

configure=0
configure_args="-i debian/tmp"
while [ $OPTIND -le "$#" ]
do
	if getopts "c" opt
	then
		case $opt in
			\?) $confirure_args="$configure_ars -$OPTARG"
				if [ $OPTARG="a" -o $OPTARG="C" -o $OPTARG="i" -o $OPTARG="v" ]
				then
					eval OPTIND=OPTIND+1
					$confirure_args="$configure_ars ${!OPTIND}"
				fi
				;;
			:) echo "Option -$OPTARG requires an argument."
				echo_usage
				exit 3
				;;
		esac
	else
		paket="${!OPTIND}"
		eval OPTIND=OPTIND+1
	fi
done

if [ -z "$paket" ]
then
	echo_usage
	exit 4
fi

if [ ! -f debian/$paket.conf ]
then
	# check if any files for $paket are present
	if ! ls debian/$paket.* 2>/dev/null
	then
		echo "$paket is no build target in this repository."
		exit 5
	fi
	
	# build conf file
	echo "$paket.conf missing. We create it ..."
	create_conf
fi

if [ ! -e configure ]
then
	ln -s /usr/share/mbuild/configure .
fi

# clean build directory
if [ "$compile_type" != "NONE" ]
then
	if [ -e ~/build ]
	then
		rm -rf ~/build
		mkdir ~/build
	fi
	configure_args="$configure_args -b"
fi

# perform configure
. debian/$paket.conf
if [ -n "$compile_dir" ]
then
	configure_args="$configure_args -b $compile_dir"
fi
if [ -z "$compile_type" ]
then
	echo "compile_type required in $paket.conf"
	exit 51
fi
if [ "$target_type" == "FILE" ]
then
	# no version needed
	configure_args="$configure_args -V"
fi
configure_args="$configure_args $paket"
echo "Executing ./configure $configure_args ..."
./configure $configure_args

if [ "$compile_type" != "NONE" ]
then
	if grep -- "-prepare" debian/$paket.build >/dev/null
	then			
		echo "prepare in <paket>.build no longer supported. Use <paket>.prebuild"
		exit 6
	fi
	# sync build dir
	. debian/setenv.sh
	debian/rules sync
	make
fi

# pack prepare
if [ "$target_type" == "DEB" ]
then
	if [ ! -f debian/$paket.cp ]
	then
		echo "debian/$paket.cp missing for target type DEB"
		exit 9
	fi
	if [ ! -f debian/$paket.control ]
	then
		echo "debian/$paket.control missing for target type DEB"
		exit 10
	fi
	
	echo "PACK=binary" >> debian/rules.pre
	if grep "^Architecture: *all" debian/$paket.control >/dev/null
	then
		echo "arch = all" >> debian/rules.pre
		echo 'BINARY_INDEP = copy ../$(paket)_$(version)-$(build)_all.deb' >> debian/rules.pre
	else
		echo 'arch = ${DEB_HOST_ARCH}' >> debian/rules.pre
		echo "BINARY_ARCH = copy ../${paket}_$version-${build}_"'$(arch).deb' >> debian/rules.pre
	fi
	if ! [ -f debian/$paket.changelog ]
	then
		echo "changelog_source = debian/default.changelog" >> debian/rules.pre
		if [ -f debian/default.changelog ]
		then
			rm debian/default.changelog
		fi
	fi
elif [ "$target_type" == "ZIP" ]
then
	echo "PACK=zip" >> debian/rules.pre
	if [ ! -f debian/$paket.cp ]
	then
		echo "debian/$paket.cp missing for target type ZIP"
		exit 11
	fi
elif [ "$target_type" == "FILE" ]
then
	echo "PACK=version" >> debian/rules.pre
	if [ "$compile_type" != "OLD" ]
	then
		if [ -z "$compile_target" ]
		then
			echo "compile_target is needed for target_type FILE"
			exit 12
		fi
		echo "TARGET = $compile_target" >> debian/rules.pre
	fi
else
	echo "Unknown target type: $target_type"
	exit 13
fi

# build package
debian/rules pack