#!/bin/sh

set -e

srcdir="$(dirname "$0")"
destdir="$(mkdir -p "$1" && readlink -e "$1")"
dest=basementhud.squashfs
releasever=35

mkdir -p "${destdir}"

dnf --installroot "${destdir}" install -y \
    --releasever ${releasever} \
    fedora-release

cp /etc/dnf/dnf.conf "${destdir}/etc/dnf/"
echo install_weak_deps=False >> "${destdir}"/etc/dnf/dnf.conf

dnf --installroot "${destdir}" install -y \
    bcm2711-firmware \
    curl \
    dhcp-client \
    dracut-network \
    firefox \
    hostname \
    kmod \
    mesa-dri-drivers \
    nbd \
    openbox \
    openssh-server \
    rsyslog \
    systemd \
    xinit \
    xorg-x11-server-Xorg \
    xrandr \
    xset \
    zram-generator \
    zram-generator-defaults \
    --

dnf --installroot "${destdir}" install -y \
    --setopt tsflags=noscripts \
    kernel \
    --
kver=$(rpm --root "${destdir}" -q --qf '%{VERSION}-%{RELEASE}.%{ARCH}' kernel)
if [ ! -f "${destdir}"/lib/modules/"${kver}"/modules.dep ]; then
    chroot "${destdir}" depmod -a "${kver}"
fi

cp -p \
    "${srcdir}"/cmdline.txt \
    "${srcdir}"/config.txt \
    "${destdir}"/boot/efi

tar --owner root:0 --group root:0 -C "${srcdir}/overlay" -c . \
    | tar -C "${destdir}" -x
chown -R 1000:1000 "${destdir}"/home/user
if ! grep -q ^user: "${destdir}"/etc/group; then
    chroot "${destdir}" groupadd -g 1000 user
fi
if ! grep -q ^user: "${destdir}"/etc/passwd; then
    chroot "${destdir}" useradd -u 1000 -g 1000 user
fi
if ! grep -qE '^video:.*:.+:.*,?user' "${destdir}"/etc/group; then
    chroot "${destdir}" gpasswd -a user video
fi
chroot "${destdir}" systemctl enable \
    dhclient@eth0 \
    systemd-time-wait-sync \
    systemd-timesyncd \
    xinit@user
chroot "${destdir}" systemctl disable \
    systemd-homed \
    systemd-userdbd
ln -sf /run/resolv.conf "${destdir}"/etc/resolv.conf

umask 0022
mksquashfs "${destdir}" "${destdir}/boot/${dest}" \
    -comp lz4 \
    -noappend \
    -ef "${srcdir}"/squashfs-exclude.txt \
    -no-exports \
    -wildcards