#!/bin/sh
# Enable 'splash' only on UEFI desktop installs, and only if Plymouth is present.
# Runs before 10update-initramfs, so we only call update-grub here.
#

set -e

# UEFI only
[ -d /sys/firmware/efi ] || exit 0

# Check for desktop environmtn task selected
SELECTION="$(debconf-get tasksel/first 2>/dev/null || true)"
echo "$SELECTION" | grep -Eq '\b(trisquel-(desktop|gnome|mini)|triskel)\b' || exit 0

# Check for plymouth installed in target
in-target dpkg -s plymouth >/dev/null 2>&1 || exit 0

# Debconf-first approach inside target; fallback to minimal edit if needed.
in-target sh -s <<'INCHROOT'
set -e
. /usr/share/debconf/confmodule

# Read current value; default to "quiet" if empty
db_get grub2/linux_cmdline_default || true
CURRENT_CMDLINE="${RET:-quiet}"

# If 'splash' already present, nothing to do
echo "$CURRENT_CMDLINE" | grep -qw splash && exit 0

# Set debconf value to include splash
db_set grub2/linux_cmdline_default "$CURRENT_CMDLINE splash" || true

# Reconfigure grub2-common (may or may not rewrite the conffile in d-i flows)
dpkg-reconfigure -f noninteractive grub2-common || true

# Fallback: minimally ensure GRUB_CMDLINE_LINUX_DEFAULT contains 'splash'
CFG="/etc/default/grub"
if ! grep -q '^GRUB_CMDLINE_LINUX_DEFAULT=' "$CFG"; then
    printf 'GRUB_CMDLINE_LINUX_DEFAULT="%s"\n' "quiet splash" >> "$CFG"
else
    GRUB_CMDLINE_VALUE="$(sed -n 's/^GRUB_CMDLINE_LINUX_DEFAULT="\{0,1\}\(.*\)"\{0,1\}$/\1/p' "$CFG" | head -n1)"
    echo "$GRUB_CMDLINE_VALUE" | grep -qw splash || \
        sed -i -E 's|^(GRUB_CMDLINE_LINUX_DEFAULT="[^"]*)(".*)?$|\1 splash"\2|; t; s|^(GRUB_CMDLINE_LINUX_DEFAULT=)(.*)$|\1"quiet splash"|' "$CFG"
fi

# Regenerate grub.cfg now; initramfs will be refreshed by 10update-initramfs next
update-grub || true
INCHROOT

exit 0