#!/bin/bash

#
# To be executed before rebooting within a chroot.
#

set -euo pipefail

# Desktop or server ?
echo
echo "Type desktop or server depending on what you want to do."
read  -p "> " desktop_or_server

# BIOS or UEFI ?
echo
echo "Type bios or uefi depending on the machine you have."
read  -p "> " bios_or_uefi

################################################################################
### Bootloader

case "$bios_or_uefi" in
    bios)
        echo "Enter the disk id where you want the bootloader to be installed. (eg. sda)"
        read  -p "> " grub_disk
        grub-install --modules=part_gpt "/dev/$grub_disk"
        ;;
    uefi)
        grub-install --target=x86_64-efi --bootloader-id=GRUB --efi-directory=/boot/efi
        ;;
    *)
        echo "Invalid choice."
        exit 1
        ;;
esac

# Generate grub menu
grub-mkconfig -o /boot/grub/grub.cfg

################################################################################
### Configuration

# Set localization
echo
echo "Enter your UTF-8 locale or let empty for keeping default one. (eg. fr_FR)"
read  -p "> " utf8_locale
if [[ -n $utf8_locale ]]; then
    # sed -i 's/export LANG=en_US.UTF-8/export LANG='$utf8_locale'.UTF-8/g' /etc/profile.d/lang.sh
    sed -i "s/^export LANG=.*/export LANG=${utf8_locale}.UTF-8/" /etc/profile.d/lang.sh
fi

# Slackpkg mirror
sed -i '/# https:\/\/mirrors.slackware.com\/slackware\/slackware64-current\//s/^# //g' /etc/slackpkg/mirrors
slackpkg update gpg

# Use generic kernel
# /usr/share/mkinitrd/mkinitrd_command_generator.sh -r | bash ### The old tool
geninitrd
grub-mkconfig -o /boot/grub/grub.cfg

################################################################################
### Usage specific configuration

case "$desktop_or_server" in
    desktop)
        # Blacklist irrelevant groups
        grep -qxF "e/" /etc/slackpkg/blacklist || echo "e/" >> /etc/slackpkg/blacklist
        grep -qxF "xfce/" /etc/slackpkg/blacklist || echo "xfce/" >> /etc/slackpkg/blacklist
        # X11 keymap
        # echo
        # echo "Enter your keymap or let empty for keeping default one. (eg. fr)"
        # read  -p "> " keymap
        # if [[ -n $keymap ]]; then
        #     mkdir -p /etc/X11/xorg.conf.d
        #     cp /usr/share/X11/xorg.conf.d/90-keyboard-layout-evdev.conf /etc/X11/xorg.conf.d/
        #     # sed -i '0,/Option "XkbLayout" "us"/s//Option "XkbLayout" "'$keymap'"/' /etc/X11/xorg.conf.d/90-keyboard-layout-evdev.conf
        #     sed -i "0,/Option \"XkbLayout\" \"us\"/s//Option \"XkbLayout\" \"$keymap\"/" /etc/X11/xorg.conf.d/90-keyboard-layout-evdev.conf
        # fi
        # Runlevel
        sed -i 's/id:3:initdefault:/id:4:initdefault:/g' /etc/inittab
        ;;
    server)
        # Blacklist irrelevant groups
        grep -qxF "e/" /etc/slackpkg/blacklist || echo "e/" >> /etc/slackpkg/blacklist
        grep -qxF "kde/" /etc/slackpkg/blacklist || echo "kde/" >> /etc/slackpkg/blacklist
        grep -qxF "t/" /etc/slackpkg/blacklist || echo "t/" >> /etc/slackpkg/blacklist
        grep -qxF "tcl/" /etc/slackpkg/blacklist || echo "tcl/" >> /etc/slackpkg/blacklist
        grep -qxF "x/" /etc/slackpkg/blacklist || echo "x/" >> /etc/slackpkg/blacklist
        grep -qxF "xap/" /etc/slackpkg/blacklist || echo "xap/" >> /etc/slackpkg/blacklist
        grep -qxF "xfce/" /etc/slackpkg/blacklist || echo "xfce/" >> /etc/slackpkg/blacklist
        grep -qxF "y/" /etc/slackpkg/blacklist || echo "y/" >> /etc/slackpkg/blacklist
        ;;
    *)
        echo "Invalid choice."
        exit 1
        ;;
esac

################################################################################
### User

# Add the first user
adduser

################################################################################
### End

echo
echo ">>> Configuration complete."
echo "Exit the chroot and reboot when ready."