#!/bin/bash

set -exo pipefail

ROOT=$(pwd)

function fetch() {
    git clone https://github.com/s3lph/ydotool "${SRCDIR}/ydotool"
}

function prepare() {
    apt install -y build-essential cmake pkg-config scdoc
    cd "${SRCDIR}/ydotool"
    export VERSION="$(git describe --tags | cut -d- -f1-2 | sed -re "s/-/~/g" -e "s/^v//g")-1"
    export ISODATE="$(git log -1 --format="%aI")"
    mkdir build
    cd build
    cmake ..
    make
    strip ydotool
    strip ydotoold
}

function prepare_ydotool() {
    mkdir -p \
          "${PKGDIR_YDOTOOL}/DEBIAN" \
          "${PKGDIR_YDOTOOL}/usr/bin" \
          "${PKGDIR_YDOTOOL}/usr/share/man/man1" \
          "${PKGDIR_YDOTOOL}/usr/share/doc/ydotool"
    cp "${SRCDIR}/ydotool/build/ydotool" "${PKGDIR_YDOTOOL}/usr/bin/ydotool"
    cp "${SRCDIR}/ydotool/build/manpage/ydotool.1" "${PKGDIR_YDOTOOL}/usr/share/man/man1/ydotool.1"
    gzip -9n "${PKGDIR_YDOTOOL}/usr/share/man/man1/ydotool.1"
    cp "${SRCDIR}/ydotool/LICENSE" "${PKGDIR_YDOTOOL}/usr/share/doc/ydotool/copyright"
    cp "${ROOT}/ydotool.debian.control" "${PKGDIR_YDOTOOL}/DEBIAN/control"
    sed -re "s/__VERSION__/${VERSION}/g" -i "${PKGDIR_YDOTOOL}/DEBIAN/control"
    sed -re "s/__MAINTAINER__/${MAINTAINER}/g" -i "${PKGDIR_YDOTOOL}/DEBIAN/control"
    find "${PKGDIR_YDOTOOL}" -exec touch -m -d "${ISODATE}" {} \;
}

function prepare_ydotoold() {
    mkdir -p \
          "${PKGDIR_YDOTOOLD}/DEBIAN" \
          "${PKGDIR_YDOTOOLD}/etc/default" \
          "${PKGDIR_YDOTOOLD}/usr/bin" \
	  "${PKGDIR_YDOTOOLD}/lib/systemd/system" \
          "${PKGDIR_YDOTOOLD}/usr/share/man/man8" \
          "${PKGDIR_YDOTOOLD}/usr/share/doc/ydotoold"
    cp "${SRCDIR}/ydotool/build/ydotoold" "${PKGDIR_YDOTOOLD}/usr/bin/ydotoold"
    cp "${SRCDIR}/ydotool/build/manpage/ydotoold.8" "${PKGDIR_YDOTOOLD}/usr/share/man/man8/ydotoold.8"
    gzip -9n "${PKGDIR_YDOTOOLD}/usr/share/man/man8/ydotoold.8"
    cp "${SRCDIR}/ydotool/LICENSE" "${PKGDIR_YDOTOOLD}/usr/share/doc/ydotoold/copyright"
    cp "${ROOT}/ydotoold.debian.control" "${PKGDIR_YDOTOOLD}/DEBIAN/control"
    cp "${ROOT}/debian.conffiles" "${PKGDIR_YDOTOOLD}/DEBIAN/conffiles"
    cp "${ROOT}/debian.default" "${PKGDIR_YDOTOOLD}/etc/default/ydotoold"
    cp "${ROOT}/debian.postinst" "${PKGDIR_YDOTOOLD}/DEBIAN/postinst"
    cp "${ROOT}/debian.prerm" "${PKGDIR_YDOTOOLD}/DEBIAN/prerm"
    cp "${ROOT}/debian.postrm" "${PKGDIR_YDOTOOLD}/DEBIAN/postrm"
    cp "${ROOT}/ydotoold.service" "${PKGDIR_YDOTOOLD}/lib/systemd/system/ydotoold.service"
    sed -re "s/__VERSION__/${VERSION}/g" -i "${PKGDIR_YDOTOOLD}/DEBIAN/control"
    sed -re "s/__MAINTAINER__/${MAINTAINER}/g" -i "${PKGDIR_YDOTOOLD}/DEBIAN/control"
    find "${PKGDIR_YDOTOOLD}" -exec touch -m -d "${ISODATE}" {} \;
}

function package() {
    cd "${BUILDDIR}"
    dpkg-deb --build "${PKGDIR_YDOTOOL}" "${BUILDDIR}"
    dpkg-deb --build "${PKGDIR_YDOTOOLD}" "${BUILDDIR}"
}

function build() {
    export BUILDDIR=${ROOT}/build
    export SRCDIR=${BUILDDIR}/srcdir
    export PKGDIR_YDOTOOL=${BUILDDIR}/pkgdir-ydotool
    export PKGDIR_YDOTOOLD=${BUILDDIR}/pkgdir-ydotoold
    mkdir -p ${SRCDIR} ${PKGDIR_YDOTOOL} ${PKGDIR_YDOTOOLD}
    fetch
    prepare
    prepare_ydotool
    prepare_ydotoold
    package
}

build