#!/usr/bin/env bash

version="${1:?You need to specific a version, eg: v1.22.2}"
version_num="${version##v}"

# must occur dirs
material_dir="./materials"

# optional dirs (created during build)
download_dir="./downloads"
package_dir="./packages"
extract_dir="./extracted"
rootfs="./rootfs"

package_name=filebrowser-${version_num}.tar.gz


function copy_file {
	local src="$1"
	local dst="$2"

	# if ends with a splash
	if [[ "$dst" == */ ]] ; then
		mkdir -p $dst
		cp --target-directory $dst $src
	else
		local dst_dir=$(dirname $dst)

		mkdir -p $dst_dir
		cp --no-target-directory $src $dst
	fi

}


# don't re-download if already downloaded
if [ ! -f "${download_dir}/${package_name}" ] ; then
	mkdir -p ${download_dir}
	wget --output-document ${download_dir}/${package_name} https://github.com/filebrowser/filebrowser/releases/download/${version}/linux-amd64-filebrowser.tar.gz
fi

rm -rf ${extract_dir}
mkdir -p ${extract_dir}
tar -xf ${download_dir}/${package_name} -C ${extract_dir}

# clean rootfs
rm -rf ${rootfs}

# move files
copy_file ${extract_dir}/filebrowser ${rootfs}/usr/bin/filebrowser

copy_file ${extract_dir}/CHANGELOG.md ${rootfs}/usr/share/filebrowser/
copy_file ${extract_dir}/LICENSE      ${rootfs}/usr/share/filebrowser/
copy_file ${extract_dir}/README.md    ${rootfs}/usr/share/filebrowser/

copy_file ${material_dir}/filebrowser.service ${rootfs}/usr/lib/systemd/system/filebrowser.service

# debian packages meta file
mkdir -p $rootfs/DEBIAN
sed "s/+++VERSION+++/${version_num}/" > $rootfs/DEBIAN/control << EOF
Package: filebrowser
Version: +++VERSION+++
Priority: optional
Architecture: all
Maintainer: leafee98 <me@leafee98.com>
Description: Web File Browser
EOF

mkdir -p $package_dir
dpkg-deb --build --root-owner-group $rootfs $package_dir/filebrowser-${version}.deb