#!/usr/bin/env bash

# execute self with sudo if user is not root
[[ $UID -ne 0 ]] && exec sudo ./"$0"

###
# Set variables
###
export DEBIAN_FRONTEND=noninteractive
DPKG_CFG_FRAGMENT=/etc/dpkg/dpkg.cfg.d/non-interactive

# Linux distro
script_distro='Linux Mint 19.x'

# Additional packages
packages=(
  # Graphics
  cheese
  inkscape

  # Office
  libreoffice

  # Security
  keepassxc

  # Games
  0ad
  beneath-a-steel-sky
  billard-gl
  blobby
  blockout2
  flight-of-the-amazon-queen
  freeciv
  frozen-bubble
  gbrainy
  gnome-games
  gweled
  hedgewars
  lincity-ng
  lure-of-the-temptress
  openttd
  pingus
  pipewalker
  pokerth
  supertux
  supertuxkart
  teeworlds
  wesnoth
  widelands

  # Gaming platforms
  playonlinux
  steam
  wine-stable
  winetricks

  # System management
  gparted

  # Tools
  hardinfo
  shutter
  vim

  # Management
  calibre

  # Media
  vlc

  # Knowledge
  goldendict
  ubuntu-edu-preschool
  ubuntu-edu-primary
  ubuntu-edu-secondary
  ubuntu-edu-tertiary

  # Language support
  language-selector-common
  openoffice.org-hyphenation
  language-pack-ar
  language-pack-gnome-ar
  language-pack-fa
  language-pack-gnome-fa
)

###
# Functions
###

# $*: message to echo
e() {
  printf "\e[31m>>>\e[0m %s\n" "$*"
}

# It's a pain to stop (ctrl+c, kill) execution with all the Python applications
# so we catch SIGINT and SIGTERM and exit immediately
handle_signal() {
  e "Ausführung abgebrochen! Script wird beendet..."
  exit 1
}

# always executed on shell exit regardless of reason. for cleanup tasks
handle_exit() {
  e "Finales Cleanup wird durchgeführt..."
  rm -f "$DPKG_CFG_FRAGMENT"
}

trap handle_signal SIGINT SIGTERM
trap handle_exit EXIT

pkg() {
  apt install "$@" --yes --quiet
}

###
# Greeting
###
echo "\
#####################################
# Computertruhe-Installationsskript #
#####################################

###
# Maintainer: Computertruhe e. V.
# Website:    https://computertruhe.de/
# Version:    0.2.0
# Repo:       https://codeberg.org/Computertruhe/computertruhe-setup
# Distro:     ${script_distro}
###
"
e "Starte initiales Setup für Rechner mit frisch installiertem '${script_distro}' ..."

###
# Automatic installation
###
# place temporary dpkg configurations to ensure non-interactive upgrade
cat <<'DPKG' >"$DPKG_CFG_FRAGMENT"
force-confold
force-confdef
DPKG

e "Automatische Installation empfohlener Pakete aktivieren ..."
sed -i 's/false/true/g' /etc/apt/apt.conf.d/00recommends

e "Besten Spiegelserver für '${script_distro}' auswählen ..."
mint-switch-to-local-mirror

e "Paketquellen aktualisieren ..."
apt update --yes --quiet

e "System aktualisieren (apt) ..."
apt full-upgrade --yes --quiet

e "System aktualisieren (mintupdate-cli) ..."
mintupdate-cli --yes upgrade

e "Proprietäre Treiber installieren (sofern verfügbar) ..."
ubuntu-drivers autoinstall

e "Zusätzliche Software installieren ..."
pkg "${packages[@]}"

e "Sprachunterstützung vervollständigen ..."
pkg "$(check-language-support)"
# these packages have to be installed after "$(check-language-support)"
pkg hunspell-de-at hunspell-de-ch hunspell-de-de

e "Unnötige Pakete entfernen und Cache bereinigen ..."
apt clean --yes --quiet
apt autoremove --yes --quiet

# https://askubuntu.com/questions/1037553/how-to-configure-a-dconf-key-globally-across-all-user-accounts#1037557
# https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/7/html/desktop_migration_and_administration_guide/custom-default-values-system-settings
e "Tastatur- und Desktopoptionen werden angepasst"
mkdir -vp /etc/dconf/{profile,db/local.d}

cat <<'EOF' > /etc/dconf/profile/user
user-db:user
system-db:local
EOF

cat <<'EOF' > /etc/dconf/db/local.d/00-keyboard-layout
[org/gnome/libgnomekbd/keyboard]
layouts=['de', 'ara', 'ir']

[org/cinnamon/desktop/interface]
keyboard-layout-show-flags=false
keyboard-layout-use-upper=true
keyboard-layout-prefer-variant-names=true
EOF

dconf update

###
# Finalisation
###
e "Initiales Setup beendet."