# solo bash interattiva
[ -n "$BASH_VERSION" ] || return
[[ $- != *i* ]] && return

export EDITOR="vim"
export LC_CTYPE=it_IT.UTF-8
export LANG=it_IT.UTF-8

HISTTIMEFORMAT="%d/%m/%y %T "
HISTSIZE=1000000
HISTFILESIZE=2000000
# HISTCONTROL
# ignorespace = lines which begin with a space character are not saved in the history list.
# ignoredups = causes lines matching the previous history entry to not be saved (default)
# ignoreboth = shorthand for ignorespace and ignoredups.
HISTCONTROL=ignoreboth

alias iftop="iftop -n -N -P"
alias ping8="ping 8.8.8.8"
alias pingw="ping www.google.it"
alias ll="ls -l"
alias myip="curl -4 ifconfig.io"
alias df="df -x tmpfs -x overlay"
alias dd="dd bs=4M status=progress conv=fsync"

# Custom prompt PS1
# obtain domain from resolv.conf
domain_full="$(cat /etc/resolv.conf | grep ^search | cut -d" " -f2)"
# set only 2nd level domain
domain="${domain_full%%.*}"
# if domain is null, set nodomain
[[ -z $domain ]] && domain="nodomain"
# randomize path color
#clrs_nbrs="90 91 92 93 94 95 96 97"
#rnd_nbr=$(shuf -e ${clrs_nbrs} -n 1)
rnd_nbr=$((RANDOM % 8 + 90))

case "$TERM" in
  xterm-color|*-256color)
  color_prompt=yes
  if [ "$(id -u)" -eq 0 ]; then
    # hostRED.domainRANDOM pathGREY
    export PS1="\[\e[35m\][\[\e[31m\]\h\[\e[35m\].\[\e[${rnd_nbr}m\]${domain} \[\e[90m\]\W\[\e[35m\]]\[\e[31m\] >\[\e[m\] "
    # domainRED pathRANDOM
    #export PS1="\[\e[35m\][\[\e[31m\]${domain} \[\e[${rnd_nbr}m\]\w\[\e[35m\]]\[\e[31m\] >\[\e[m\] "
  else
    # userGREEN@hostORANGE.domainRANDOM pathGREY
    export PS1="\[\e[35m\][\[\e[32m\]\u\[\e[35m\]@\[\e[33m\]\h\[\e[35m\].\[\e[33m\]${domain} \[\e[90m\]\W\[\e[35m\]]\[\e[32m\] >\[\e[m\] "
    # domainGREEN pathRANDOM
    #export PS1="\[\e[35m\][\[\e[32m\]${domain} \[\e[${rnd_nbr}m\]\w\[\e[35m\]]\[\e[32m\] >\[\e[m\] "
  fi
  ;;
esac


# Change the window title of X terminals
__set_title() {
    local host=${HOSTNAME%%.*}
    local pwd=${PWD/#$HOME/~}
    printf '\033]0;%s@%s:%s\007' "$USER" "$host" "$pwd"
}

case $TERM in
    xterm*|rxvt*|Eterm*|aterm|kterm|gnome*|interix|konsole*)
        PROMPT_COMMAND="__set_title${PROMPT_COMMAND:+;$PROMPT_COMMAND}"
        ;;
    screen*|tmux*)
        PROMPT_COMMAND='printf "\033_%s@%s:%s\033\\" "$USER" "${HOSTNAME%%.*}" "${PWD/#$HOME/~}";'"${PROMPT_COMMAND:+$PROMPT_COMMAND}"
        ;;
esac

#case ${TERM} in
# xterm*|rxvt*|Eterm*|aterm|kterm|gnome*|interix|konsole*)
#  PROMPT_COMMAND="echo -ne \"\033]0;${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/~}\007\""
# ;;
# screen*)
#  PROMPT_COMMAND='echo -ne "\033_${USER}@${HOSTNAME%%.*}:${PWD/#$HOME/~}\033\\"'
# ;;
#esac

## add personal setting to ~/.vimrc
[[ ! -e ~/.vimrc ]] && touch ~/.vimrc
grep -q "syntax on" ~/.vimrc || echo "syntax on" >> ~/.vimrc
grep -q "backspace" ~/.vimrc || echo "set backspace=indent,eol,start" >> ~/.vimrc

## add ~/.screenrc & "startup_message off" if not present:
[[ ! -e ~/.screenrc ]] && touch ~/.screenrc
grep -q "startup_message off" ~/.screenrc || echo "startup_message off" >> ~/.screenrc

if [ -x /usr/bin/dircolors ]; then
 test -r ~/.dircolors && eval "$(dircolors -b ~/.dircolors)" || eval "$(dircolors -b)"
 alias ls='ls --color=auto'
 alias dir='dir --color=auto'
 alias vdir='vdir --color=auto'
 alias grep='grep --color=auto'
 alias fgrep='fgrep --color=auto'
 alias egrep='egrep --color=auto'
fi

function ex {
 if [ -f "$1" ] ; then
  case "$1" in
    *.tar.bz2)   tar xjf "$1"      ;;
    *.tar.gz)    tar xzf "$1"      ;;
    *.bz2)       bunzip2 "$1"      ;;
    *.rar)       unrar x "$1"      ;;
    *.gz)        gunzip "$1"       ;;
    *.tar)       tar xf "$1"       ;;
    *.tbz2)      tar xjf "$1"      ;;
    *.tgz)       tar xzf "$1"      ;;
    *.zip)       unzip "$1"        ;;
    *.Z)         uncompress "$1"   ;;
    *.7z)        7z x "$1"         ;;
    *.tar.xz)    tar --xz -xf "$1" ;;
    *.xz)        unxz "$1"         ;;
    *)           echo "'$1' cannot be extracted via ex()" ;;
  esac
 else
  echo "'$1' is not a valid file"
 fi
}