#! /usr/bin/env bash

system_name="${1}"
exe_file="${2}"
bundle_dir="${3}"

case "${system_name}" in
	'windows')
		bundle_dir="$(cygpath --unix "${bundle_dir}")"
		exe_file="$(cygpath --unix "${exe_file}")"
		ntldd --recursive "${exe_file}" \
		| egrep -i '\.dll => [A-Z]:\\msys64\\' \
		| sed -e 's/ (0x[0-9a-f]*)$//;s/^.* => //' \
		| cygpath --unix --file - \
		| while read dll_file
		do
			dll_basename="$(basename "${dll_file}")"

			if [ -f "${bundle_dir}/${dll_basename}" ]
			then
				continue
			fi

			cp --preserve=timestamps "${dll_file}" "${bundle_dir}/${dll_basename}"

			if [ "${dll_basename}" = 'libgtk-win32-2.0-0.dll' ]
			then
				mingw="$(which 'libgtk-win32-2.0-0.dll' | cut -f2 -d'/')"

				for component_dir in \
					'share/themes/MS-Windows' \
					'share/icons/hicolor' \
					'lib/gdk-pixbuf-2.0' \
					'lib/gtk-2.0'
				do
					if ! [ -d "${bundle_dir}/${component_dir}" ]
					then
						mkdir --parents "${bundle_dir}/$(dirname "${component_dir}")"
						cp -r --preserve=timestamps "/${mingw}/${component_dir}" \
							"${bundle_dir}/${component_dir}"
					fi
				done

				find "${bundle_dir}/lib" -type f -name '*.a' -exec rm {} \;
				find "${bundle_dir}/lib" -type f -name '*.h' -exec rm {} \;
				find "${bundle_dir}/lib" -type d -exec rmdir --ignore-fail-on-non-empty {} \;
			fi
		done
		;;
	*)
		printf 'ERROR: unsupported system: %s\n' "${system_name}" >&2
		exit 1
		;;
esac