#!/bin/sh -e
# genapkovl-bee_debug.sh — generate apkovl for bee debug LiveCD
# Called by mkimage.sh: receives hostname as , must create .apkovl.tar.gz

HOSTNAME="$1"
if [ -z "$HOSTNAME" ]; then
    echo "usage: $0 hostname"
    exit 1
fi

OVERLAY="${BEE_OVERLAY_DIR}"
if [ -z "$OVERLAY" ]; then
    echo "ERROR: BEE_OVERLAY_DIR not set"
    exit 1
fi

cleanup() { rm -rf "$tmp"; }
tmp="$(mktemp -d)"
trap cleanup EXIT

makefile() {
    OWNER="$1" PERMS="$2" FILENAME="$3"
    cat > "$FILENAME"
    chown "$OWNER" "$FILENAME"
    chmod "$PERMS" "$FILENAME"
}

rc_add() {
    mkdir -p "$tmp/etc/runlevels/$2"
    ln -sf /etc/init.d/"$1" "$tmp/etc/runlevels/$2/$1"
}

# --- hostname ---
mkdir -p "$tmp/etc"
makefile root:root 0644 "$tmp/etc/hostname" <<EOF
$HOSTNAME
EOF

# --- packages to install at boot ---
mkdir -p "$tmp/etc/apk"
makefile root:root 0644 "$tmp/etc/apk/world" <<EOF
alpine-base
dmidecode
smartmontools
nvme-cli
pciutils
ipmitool
util-linux
lsblk
e2fsprogs
lshw
dropbear
libqrencode-tools
tzdata
ca-certificates
strace
procps
lsof
file
less
vim
EOF

# --- standard sysinit/boot/shutdown services ---
rc_add devfs sysinit
rc_add dmesg sysinit
rc_add mdev sysinit
rc_add hwdrivers sysinit
rc_add modloop sysinit

rc_add hwclock boot
rc_add modules boot
rc_add sysctl boot
rc_add hostname boot
rc_add bootmisc boot
rc_add syslog boot

rc_add mount-ro shutdown
rc_add killprocs shutdown
rc_add savecache shutdown

# --- bee services ---
for svc in bee-sshsetup bee-network dropbear bee-audit-debug; do
    rc_add "$svc" default
done

# --- copy overlay etc/ (init.d scripts, motd, etc.) ---
if [ -d "$OVERLAY/etc" ]; then
    cp -r "$OVERLAY/etc/." "$tmp/etc/"
fi

# --- copy overlay usr/ (bee-network.sh, audit binary) ---
if [ -d "$OVERLAY/usr" ]; then
    mkdir -p "$tmp/usr"
    cp -r "$OVERLAY/usr/." "$tmp/usr/"
fi

# --- copy root/.ssh/authorized_keys if present ---
if [ -d "$OVERLAY/root" ]; then
    mkdir -p "$tmp/root"
    cp -r "$OVERLAY/root/." "$tmp/root/"
    chmod 700 "$tmp/root/.ssh" 2>/dev/null || true
    chmod 600 "$tmp/root/.ssh/authorized_keys" 2>/dev/null || true
fi

# --- dropbear: enable root login ---
mkdir -p "$tmp/etc/dropbear" "$tmp/etc/conf.d"
makefile root:root 0644 "$tmp/etc/conf.d/dropbear" <<EOF
DROPBEAR_OPTS="-R"
EOF

tar -c -C "$tmp" etc usr root 2>/dev/null | gzip -9n > "$HOSTNAME.apkovl.tar.gz"