#!/usr/bin/env bash
#
#  MOTDs32 installation instructions
#  ==================================
#
# (2017) New project MOTDs32 Customized by Erreur32
# Version 0.0.5
#
#         https://gitlab.echosystem.fr/Erreur32/MOTDs32
#
# ,--.   ,--. ,-----. ,--------.,------.         ,----.  ,---.
# |   `.'   |'  .-.  ''--.  .--'|  .-.  \  ,---. '.-.  |'.-.  \
# |  |'.'|  ||  | |  |   |  |   |  |  \  :(  .-'   .' <  .-' .'
# |  |   |  |'  '-'  '   |  |   |  '--'  /.-'  `)/'-'  |/   '-.
# `--'   `--' `-----'    `--'   `-------' `----' `----' '-----'
#
#          |  + Ｓｔａｔｓ３２   |
#
# MOTDstat is dynamicaly refreshing the /etc/motd file with current informations
# about system status and usage.
#
# Copyright 2017 🅴🆁🆁🅴🆄🆁32
# original project: Pavol Krigler <pavol.krigler@gelogic.net>
#
#   make sur this file is executable +x
################################################################################
#
# Installation
# ============
#
#      As root execute this command (the easy way!):
#
#        #  bash install.sh
#
#
################################################################################
LSB=/usr/bin/lsb_release

## DEBUG

readonly PROGNAME=$(basename $0)
readonly PROGDIR=$(readlink -m $(dirname $0))
readonly PROGDIRSCRIPT="$(readlink -m $(dirname $0))/scripts"
readonly ARGS="$@"

## debug
set -e -u -o pipefail
IFS=$'\n\t'
on_error() { echo "Error on or near line $1; exiting with status $2"; exit "$2"; }

trap 'on_error ${LINENO} $?' ERR


################################################################################
# Make sure only root can run our script
if [[ $EUID -ne 0 ]]; then
   echo "This script must be run as root" 1>&2
   exit 1
fi

crontab -l > $PROGDIR/crontab.backup

pathscript32="$(cd "$(dirname "$0")" && pwd)"
cronmotd="*/5 * * * *      /usr/bin/motds32 -g  >/dev/null 2>&1"

## clean terminal
BG_BLUE="$(tput setab 4)"
BG_BLACK="$(tput setab 0)"
FG_GREEN="$(tput setaf 2)"
FG_WHITE="$(tput setaf 7)"

# Save screen
tput smcup
# Display menu until selection == 0
#while [[ $REPLY != 0 ]]; do
while [[ $ARGS != 0 ]]; do
echo -n ${BG_BLACK}${FG_WHITE}
clear
echo -e "\e[33;3m"
cat <<- "EOFMO"

     Ｉｎｓｔａｌｌａｔｉｏｎ  ｏｆ  ＭＯＴＤｓ３２  |  +  Ｓｔａｔｓ３２   |

EOFMO
echo -e "\e[32m"
cat <<- "EOFMO2"
        ,--.   ,--. ,-----. ,--------.,------.         ,----.  ,---.
        |   `.'   |'  .-.  ''--.  .--'|  .-.  \  ,---. '.-.  |'.-.  \
        |  |'.'|  ||  | |  |   |  |   |  |  \  :(  .-'   .' ;  .-' .'
        |  |   |  |'  '-'  '   |  |   |  '--'  /.-'  `)/'-'  |/   '-.
        `--'   `--' `-----'    `--'   `-------' `----' `----' '-----'

    By  Ｅｒｒｅｕｒ３２

EOFMO2

echo -e "\e[90m # MOTDs32 is dynamicaly refreshing the /etc/motd file with current informations"
echo -e "\e[90m # about system status and usage."
echo -e "\n\e[34m    Check ＭＯＴＤｓ３２ dependencies... \n"

check_depend(){
# Check installed
 if [ -f  "/usr/sbin/sendmail" ]
      then
  echo -e "    \e[34m-  Posfix          \e[32m✔ installed."
      else
  echo -e "    \e[34m-  Select option 1 \e[91m Missing package !!"
 fi

 if  [ -f  "/usr/share/build-essential/essential-packages-list" ]
    then
  echo -e "    \e[34m-  build-dep       \e[32m✔ installed."
    else
  echo -e "    \e[34m-  build-dep       \e[1;31mSelect option 1 \e[91m Missing package !!"
 fi
# Check files

if hash figlet 2>/dev/null; then
echo -e "    \e[34m-  Figlet          \e[32m✔ installed."
    else
echo -e "    \e[34m-  Figlet         \e[1;31m Select option 1 \e[91m Missing package !!"
    fi
if hash ntpd 2>/dev/null; then
echo -e "    \e[34m-  NTP             \e[32m✔ installed."
    else
echo -e "    \e[34m-  NTP           \e[1;31mSelect option 1 \e[91m Missing package !!"
    fi
if hash make 2>/dev/null; then
echo -e "    \e[34m-  build-essential \e[32m✔ installed."
    else
echo -e "    \e[34m-  build-essential  \e[1;31mSelect option 1 \e[91m Missing package !!"
    fi

}
# Check dependenciess

check_depend || echo -e "\e[34m  Check required dependencies ! (need to be installed)"

Check_install_package(){
 echo -e " \e[32m install missing package  ...\e[0m\n"
            apt-get install  --allow-unauthenticated -y build-essential ntp figlet postfix sasl2-bin
            echo -e "\n\e[34m - apt-get installation build-essential ntp figlet \e[0m>> Succesfull"
     if [ -f "/usr/bin/motds32" ]
      then
      echo -e "\n\e[34m - Make file \e[0m>> found.\e[0m\n"
      #make install
      #echo -e "\n\e[34m - REMake file done.\e[0m\n"
      else
      echo -e "\n\e[92m -Building binary \e[0m\n"
      make install
      echo -e "\n\e[34m - Make file done.\e[0m\n"
     fi

      echo -e "\e[92m"
        if [ `grep -c /etc/motd ~/.bashrc` == 0 ]
         then
            echo -e " \e[31m code bash missing\e[0m"
            echo "cat /etc/motd" >> ~/.bashrc
            echo  "/etc/motds32/Stats32"  >> ~/.bashrc
            echo -e "\e[92m - Code bash \e[0madded.\n"
         else
           grepmot=`grep  '/etc/motd' ~/.bashrc`
#           echo -e "  \e[1;30m Code bash found: \e[0m>>\e[0m $grepmot \e[0m<<\n"
           echo -e "  -->\e[34m  Code bash:  \e[92mOK\e[0m"
        fi

 # Check if MOTDs32 is already add
        if test ! -d /etc/motds32; then mkdir -p /etc/motds32; fi

        if [ -f  "/etc/motds32/Stats32" ]
         then
           echo -e "  -->\e[34m  Stats32     \e[92mOK\e[0m"
           cp -f Stats32 /etc/motds32/Stats32
         else
          cp -f  Stats32 /etc/motds32/Stats32
          echo -e "  -->\e[34m  Stats32 \e[92mINSTALLED\e[0m"
        fi

 # Copy font figlet
        if [ -f  "/usr/share/figlet" ]
         then
           echo -e "  -->\e[31m  figlet not FOUND\e[0m"
         else
           cp -Rf fonts/chunky.flf /usr/share/figlet/
           echo -e "  -->\e[34m  figlet&font \e[92mOK\e[0m"
        fi


 # Check if motd is installed correctly
        if [ -f  "/usr/bin/motd" ]
         then
           echo -e "  -->\e[34m  motd check  \e[92mOK\e[0m\n"
         else
            ln -s /usr/bin/motds32 /usr/bin/motd
            echo -e "  -->\e[34m  motd bin  \e[92mOK\e[0m\n"
        fi
 ## Install Crontab
        if crontab -l | grep -q '/usr/bin/motds32';  then
          echo -e " \e[34m -Cron \e[0m>> already added.\e[0m"
        else
         (crontab -l ; echo  $cronmotd)| crontab -u root -
#        (crontab -l ; echo "*/5 * * * *      /usr/bin/motds32 -g  >/dev/null 2>&1")| crontab -
         echo -e "\e[34m - Cron added.\e[0m"
        fi
## Generate first stats
        if test -f /usr/bin/motds32; then /usr/bin/motds32 -g; fi

      echo -e "\n\n\e[34m \e[92m  Ｉｎｓｔａｌｌａｔｉｏｎ  PACKAGE  completed!\e[0m  \n\n\n You can install \e[1;33m   ＭＯＴＤｓ３２\n\e[92m  Use: \033[1;30m option 2\e[0m \n\e[0m\n"
      printf "\n   \e[1;33m  (Press 0 to exit) Or any key to go back."

}
#Check_install_package

Motds32_install(){
 echo -n " Git " ; cd $pathscript32 && git pull ;   echo -e "\n\e[92m" ;
            grepmot="cat /etc/motd"
#        if [ `grep -c "cat /etc/motd" ~/.bashrc` == 0 ]
        if [ $(grep -c "cat /etc/motd" ~/.bashrc) == 0 ]
         then
            echo -e "\e[31m code bash missing\e[0m"
            echo $grepmot >> ~/.bashrc
            echo  "/etc/motds32/Stats32"  >> ~/.bashrc
           echo -e "\e[92m - Code bash \e[0madded.\n"
         else
#           sed -i '/cat \/etc\/motd/d' ~/.bashrc
#           grepmot=$(grep "/etc/motd" ~/.bashrc)
           echo -e "  \e[32;1m Code bash found: \e[0m>>\e[0m $grepmot \e[0m<<\n"
           echo -e "  -->\e[34m  Code bash: \e[92mOK\e[0m"
        fi

# Copy font figlet
        if [ -f  "/usr/share/figlet" ]
         then
           echo -e "  -->\e[31m  figlet not FOUND\e[0m"
         else
           cp -Rf fonts/chunky.flf /usr/share/figlet/
           echo -e "  -->\e[34m  figlet&font \e[92mOK\e[0m"
        fi

# Check if MOTDs32 is already add
        if test ! -d /etc/motds32; then mkdir -p /etc/motds32; fi

        if [ -f "/usr/bin/motds32" ]
      then
       echo -e "\n\e[34m - Make file \e[0m>> found.\e[0m\n"
       #make install -- see update
       #echo -e "\n\e[34m - REMake file done.\e[0m\n"
      else
       echo -e "\n\e[92m -Building binary \e[0m\n"
       make install
       echo -e "\n\e[34m - Make file done.\e[0m\n"
     fi

        if [ -f  "/etc/motds32/Stats32" ]
         then
           echo -e "  -->\e[34m  Stats32    \e[92mOK\e[0m"
           cp -f Stats32 /etc/motds32/Stats32
         else
           cp -f Stats32 /etc/motds32/Stats32
           echo -e "  -->\e[34m  Stats32 \e[92mINSTALLED\e[0m"
        fi

 # Copy font figlet
        if [ -f  "/usr/share/figlet" ]
         then
           echo -e "  -->\e[31m  figlet not FOUND\e[0m"
         else
           cp -Rf fonts/chunky.flf /usr/share/figlet/
           echo -e "  -->\e[34m  figlet&font \e[92mOK\e[0m"
        fi

 # Check if motd is installed correctly
        if [ -f  "/usr/bin/motd" ]
         then
           echo -e "  -->\e[34m  motd check \e[92mOK\e[0m\n"
         else
            ln -s /usr/bin/motds32 /usr/bin/motd
            echo -e "  -->\e[34m  motd bin \e[92mOK\e[0m\n"
        fi

 ## Install Crontab
        if crontab -l | grep -q '/usr/bin/motds32';  then
          echo -e "\e[34m - Cron \e[0m>> already added.\e[0m"
                 /usr/bin/motds32 -g
        else
         (crontab -l ; echo  $cronmotd)| crontab -u root -
#          (crontab -l ; echo "*/5 * * * *      /usr/bin/motds32 -g  >/dev/null 2>&1")| crontab -
          echo -e "\e[34m - Cron added.\e[0m"
        fi
## Generate first stats
#      if test -f /usr/bin/motds32; then /usr/bin/motds32 -g; fi

      echo -e "\n\n\n Help? Use: \n \033[1;30m /usr/bin/motds32\e[0m \n or \033[1;30m\n  motd\e[0m\n"
      echo -e "\n\n\e[34m \e[92m  Ｉｎｓｔａｌｌａｔｉｏｎ  ｏｆ  ＭＯＴＤｓ３２ completed!\e[0m"
      printf "\n   \e[1;33m  (Press any key to exit.)\e[0m"

}

# Motds32_install


Motds32_update(){
  echo -n " Git " ; cd $pathscript32 && git pull ;   echo -e "\n\e[92m" ;
         if [ $(grep -c "cat /etc/motd" ~/.bashrc) == 0 ]
         then
            echo -e "\e[31m code bash missing\e[0m"
            echo $grepmot >> ~/.bashrc
            echo  "/etc/motds32/Stats32"  >> ~/.bashrc
           echo -e "\e[92m - Code bash \e[0madded.\n"
         else
#           sed -i '/cat \/etc\/motd/d' ~/.bashrc
#           grepmot=$(grep "/etc/motd" ~/.bashrc)
           echo -e "  \e[32;1m Code bash found: \e[0m>>\e[0m $grepmot \e[0m<<\n"
           echo -e "  -->\e[34m  Code bash: \e[92mOK\e[0m"
        fi
     if [ -f "/usr/bin/motds32" ]
      then
      echo -e "\n\e[34m - Make file \e[0m>> update.\e[0m\n"
      make install  > /dev/null
      motd -g
      echo -e "\n\e[32;1m - Update binary done.\e[0m\n"
      echo -e "\n\e[1;33m  (Press any key.)\e[0m"
      else
      echo -e "\e[32;4m - Make install first !\e[0m\n"
      echo -e "\n\e[1;33m  (Press any key.)\e[0m"
     fi
     if [ -f  "/etc/motds32/Stats32" ]
         then
           echo -e "  -->\e[34m  Stats32    \e[92mOK\e[0m"
           cp -f $pathscript32/Stats32 /etc/motds32/Stats32
         else
           cp -f $pathscript32/Stats32 /etc/motds32/Stats32
           echo -e "  -->\e[32;4m  Stats32 \e[92mOK\e[0m"
        fi

# generate new stat
#       motd -g
          /usr/bin/motds32 -g


}

# Motds32_update


Motds32_remove(){
     echo -e "\n\e[34m Unistall of ＭＯＴＤｓ３２ in progress... \e[0m\n"
## remove file and directory
#          make uninstall
## remove cron
    if crontab -l | grep -q '/usr/bin/motds32'
    then
     echo -e "\n  \e[94m Cron localized\n"
      crontab -l | grep -v $cronmotd| crontab -u root -
#     crontab -l | grep -v "*/5 * * * *      /usr/bin/motds32 -g  >/dev/null 2>&1" | crontab -u root -
     echo -e "  \e[35m Cron removed\n"
    else
     echo -e "\n  \e[35m Cron OK\n"
    fi


    if [ `grep -c motd ~/.bashrc` == 0 ]
    then
     echo -e "  \e[35m Code bash removed"
    else
     echo -e " \e[34mCode bash found"
     sed -i '/cat \/etc\/motd/d' ~/.bashrc
     sed -i '\/etc\/motds32\/Stats32/d' ~/.bashrc
     echo -e "\e[92m Code .bashrc removed.\e[0m"
     grep -n '/etc/motd' ~/.bashrc
     echo -e "\e[0m"
    fi

     make uninstall  >/dev/null

        if [ -d "/etc/motds32" ]
        then
          rm /etc/motds32/ -Rf
        fi

	if [ -f "/var/cache/motds32" ]
	then
	  rm /usr/bin/motd /var/cache/motds32/ -Rf
	fi

	if [ -f "/etc/motd.orig" ]
	then
	  mv /etc/motd.orig /etc/motd
	fi
        echo -e "\n\e[35m   Motds32 Files... Removed, all good!"
#      if test ! -e /etc/motd.orig; then mv /etc/motd.orig /etc/motd; fi
#      if test ! -d /var/cache/motds32; then rm /usr/bin/motd /var/cache/motds32/ -Rf;  fi

    echo -e "\n\e[92m Script ＭＯＴＤｓ３２ has been completly removed \e[0m"
    printf "\n\n   \e[1;33m  (Press any key.)\e[0m"

}



echo -e "\n\e[32;3m        YOU CAN SKIP (auto) install if you want"
echo -e "\n\e[92m  Please Select:"
echo -e "        1. \e[97m(auto) Install Missing Package\e[92m"
echo -e "        2. \e[97mInstallation  MOTDs32 script\e[92m"
echo -e "        3. \e[97mUpdate MOTDs32 script\e[92m"
echo -e "        4. \e[97mUninstall completly  MOTDs32 script\e[92m"
echo -e "        0. \e[97m(Enter or any key) to Quit\n\e[33;3m"
read -p "     Enter selection [0-3] or (Enter) to Quit > " selection
echo -e "\e[97m"


#check_depend

# Clear area beneath menu
tput cup 10 0
echo -n ${FG_GREEN}
tput ed
tput cup 11 0

     case $selection in
        1)  Check_install_package
		;;
        2)  Motds32_install
		;;
	3)  Motds32_update
		#echo  -e "\n Installation \e[34mMOTDs32 terminated.\e[0m\n  Help? Use: \n \033[1;30m /usr/bin/motds32\n"
		;;
	4)  Motds32_remove
	        ;;
        0)  break
            ;;
        *)  break
            ;;
      esac
      read -n 1

#      echo -e "\n\n\e[34m \e[92m  Ｉｎｓｔａｌｌａｔｉｏｎ  ｏｆ  ＭＯＴＤｓ３２ completed!\e[0m  \n\n\n Help? Use: \n \033[1;30m /usr/bin/motds32\e[0m \n or \033[1;30m\n  motd\e[0m\n"
#      printf "\n   \e[1;33m  (Press any key to exit.)\e[0m"

done

# Restore screen
tput rmcup
echo  -e " Installation \e[34mMOTDs32 terminated.\e[0m\n  Help? Use: \n \033[1;30m /usr/bin/motds32\n"