#!/bin/bash
_ps1__refresh_history() {
history -n
history -w
history -c
history -r

tac "$HISTFILE" \
   | awk '!x[$0]++' \
   > /tmp/refreshprompt \
   && tac /tmp/refreshprompt \
         > "$HISTFILE"
            
rm /tmp/refreshprompt
}

# Adding new blank line for readability
_ps1__pre_prompt_blankline() {
IFS=';' read -sdR -p $'\E[6n' ROW COL
if	! [[ `echo "${ROW#*[}"` == 1 ]];then 
   if [[ $_ps1_verylight ]];then
      _ps1_Hline=""
   else
      if	[[ $_ps1_color ]];then
         _ps1_Hline=`echo;printf "\e[2m🭻\e[0m%.0b" {1..26}`
      else
         _ps1_Hline=`echo;printf '🭻%.0b' {1..26}`
      fi
   fi
   printf "%b\n" "${_ps1_Hline}"
fi
}

# Preparing infos
_ps1__pre_prompt_set() {
_ps1_user="$USER"
_ps1_host="$HOSTNAME"

_ps1_file=`\
/bin/ls -1Ap \
   | /bin/grep -v / \
   | /usr/bin/wc -l \
   | /bin/sed 's: ::g'`

_ps1_dirs=`\
/bin/ls -1Ap \
   | /bin/grep / \
   | /usr/bin/wc -l \
   | /bin/sed 's: ::g'`

_ps1_size=`\
/bin/ls -lah \
   | /bin/grep -m 1 total \
   | /bin/sed 's/total //'`

_ps1_time=`date +%H:%M`
_ps1_hist=$(( `cat $HISTFILE | wc -l` + 1 ))
_ps1_h=$PWD

[[ $_ps1_h/ = "$HOME"/* ]] \
   && _ps1_h=\~${_ps1_h#$HOME}

_ps1__pre_prompt_blankline
}


# 1. echolib Colored
_ps1__prompt_echolib() {
local _ps1_Exit="$?"
[[ ${_ps1_Exit} == 0 ]] \
   && _ps1_Exit=`echo -e "\e[32m${_ps1_Exit}\e[0m"` \
   || _ps1_Exit=`echo -e "\e[31m${_ps1_Exit}\e[0m"`

_ps1__refresh_history
_ps1_color=true
_ps1__pre_prompt_set
unset _ps1_color

# Line 1
printf   "%b %b %b %b\n" \
         "  $_ps1_Exit" \
         "$_ps1_time" \
         "${C_Grey}!$_ps1_hist${NC}" \
         "${C_Green}$_ps1_user${NC}${C_Grey}@${NC}$_ps1_host"
# Line 2
printf   "%b %b %b %b %b\n" \
         "  ${C_Grey}f:${NC}${C_Cyan}$_ps1_file${NC}" \
         "${C_Grey}D:${NC}${C_Yellow}$_ps1_dirs${NC}" \
         "${C_Grey}S=${NC}$_ps1_size" \
         "${C_Grey}>${NC}" \
         "${C_Yellow}$_ps1_h${NC}"
# Line 3
PS1='$ '
}

shopt -s histappend
export HISTCONTROL=ignoreboth:erasedups
PROMPT_COMMAND=_ps1__prompt_echolib
export PS1=$PROMPT_COMMAND