#!/bin/sh

usage()
{
    cat <<EOF
Usage: dotnet-config [OPTIONS]
Options
    [--library]
EOF
    exit $1
}

if test $# -eq 0; then
    usage 1 1>&2
fi

true_val=1
false_val=0

includes_list=""
packages_list=""
pkg_manager_options=""
needs_library_path=$false_val
needs_include_path=$false_val

t_line=`dotnet --list-runtimes | grep Microsoft.NETCore.App | head -1`
dotnet_version=`echo $t_line | cut -d' ' -f 2`
dotnet_path=`echo $t_line | cut -d' ' -f 3 | tr -d '[]'`
dotnet_app_packs_path=`echo $dotnet_path | sed -e "s/\/shared\//\/packs\//g"`
dotnet_packs_path=`echo $dotnet_app_packs_path | sed 's/\/[^\/]*$//g'`

os_id=`lsb_release -i | cut -d':' -f 2 | sed 's/\s//g'`
os_release=`lsb_release -r | cut -d':' -f 2 | sed 's/\s//g'`
arch=`uname -p`
case $arch in
	'x86_64')
		arch="x64"
		;;
	*)
		;;
esac


while test $# -gt 0; do
    case $1 in
        --library)
        	if [ $needs_library_path = $false_val ]; then
            	needs_library_path=$true_val

				p=${dotnet_app_packs_path}.Host.linux-$arch$/${dotnet_version}/runtimes/linux-$arch/native
				if [ ! -d "$p" ]; then
            		p=${dotnet_app_packs_path}.Host.${os_id}.${os_release}-$arch$/${dotnet_version}/runtimes/${os_id}.${os_release}-$arch/native
            		if [ ! -d "$p" ]; then
						tmp_f=`find -L ${dotnet_packs_path} -name 'libnethost.so'` 
						case $tmp_f in
							*/libnethost.so)
								p=`echo $tmp_f | sed 's/\/libnethost.so//g'`
								;;
							*)
								;;
						esac
            		fi
				fi
            	packages_list=" $packages_list -L$p "
            	pkg_manager_options=" $pkg_manager_options -lstdc++ -ldl -lnethost -lpthread "
        	fi
        ;;
        --include)
        	if [ $needs_include_path = $false_val ]; then
            	needs_include_path=$true_val

				p=${dotnet_app_packs_path}.Host.linux-$arch$/${dotnet_version}/runtimes/linux-$arch/native
				if [ ! -d "$p" ]; then
            		p=${dotnet_app_packs_path}.Host.${os_id}.${os_release}-$arch$/${dotnet_version}/runtimes/${os_id}.${os_release}-$arch/native
            		if [ ! -d "$p" ]; then
						tmp_f=`find -L ${dotnet_packs_path} -name 'nethost.h'` 
						case $tmp_f in
							*/nethost.h)
								p=`echo $tmp_f | sed 's/\/nethost.h//g'`
								;;
							*)
								;;
						esac
            		fi
				fi
            	includes_list=" $inc -I$p "
        	fi
        ;;
        *)
        	usage 1 1>&2
        ;;
    esac
    shift
done

echo $includes_list $packages_list $pkg_manager_options