#!/bin/bash
set -euo pipefail

#
# Helper functions
#
declare -i term_width=80

h1() {
    declare border padding text
    border='\e[1;34m'"$(printf '=%.0s' $(seq 1 "$term_width"))"'\e[0m'
    padding="$(printf ' %.0s' $(seq 1 $(((term_width - $(wc -m <<<"$*")) / 2))))"
    text="\\e[1m$*\\e[0m"
    echo -e "$border"
    echo -e "${padding}${text}${padding}"
    echo -e "$border"
}

h2() {
    printf '\e[1;33m==>\e[37;1m %s\e[0m\n' "$*"
}


export DEBIAN_FRONTEND=noninteractive

# !!!!!!!!!!!!!!!
# Wyłącz swap!!  
# swapoff -a
# sed -i -E 's,^([^#]+\sswap\s.+),#\1,' /etc/fstab

h1 "Debug networking and system uuid"
ip addr
cat /sys/class/dmi/id/product_uuid

h1 "Prepare base system"
h2 "Install applications and utils"
# update the package cache.
apt-get update
apt-get install -y --no-install-recommends jq curl bash-completion vim tcpdump traceroute iptables

h2 "Configure vim"
cat >/etc/vim/vimrc.local <<'EOF'
syntax on
set background=dark
set esckeys
set ruler
set laststatus=2
set nobackup
EOF

h2 "Configure shell"
cat >/etc/profile.d/login.sh <<'EOF'
[[ "$-" != *i* ]] && return
export EDITOR=vim
export PAGER=less
alias l='ls -lF --color'
alias ll='l -a'
alias h='history 25'
alias j='jobs -l'
EOF

cat >/etc/inputrc <<'EOF'
set input-meta on
set output-meta on
set show-all-if-ambiguous on
set completion-ignore-case on
"\e[A": history-search-backward
"\e[B": history-search-forward
"\eOD": backward-word
"\eOC": forward-word
EOF