#!/bin/bash

# Installation:
#
# 1.   vim /etc/ssh/sshd_config
#      PrintMotd no
#
# 2.   vim /etc/pam.d/login
#      # session optional pam_motd.so
#
# 3.   vim /etc/profile
#      /usr/local/bin/dynmotd # Place at the bottom
#
# 4.   Then of course drop this file at
#      /usr/local/bin/dynmotd
#

if getent group "{{ admin_group }}" | grep -qw "$(whoami)"; then
  USER=`/usr/bin/env whoami`
  HOSTNAME=`/usr/bin/env uname -n | /usr/bin/env cut -d. -f1`
  IP=`/usr/bin/env ip route get 1 | /usr/bin/env grep -Po '(?<=src.)[\w\d.]+'`
  IP6=`/usr/bin/env ip -6 addr | /usr/bin/env awk -F '[ \t]+|/' '$3 == "::1" { next;} $3 ~ /^fe80::/ { next ; } /inet6/ {print $3} '`
  NUM_CPU=`cat /proc/cpuinfo | grep processor | wc -l`
  #ROOT=`/usr/bin/df / -x fuse.gvfs-fuse-daemon -Ph | /usr/bin/egrep -i 'root|logvol|vda' | awk '{print $4}' | tr -d '\n'`
  #HOME=`/usr/bin/df /home -x fuse.gvfs-fuse-daemon -Ph | grep home | awk '{print $4}' | tr -d '\n'`
  #BACKUP=`/usr/bin/df -x fuse.gvfs-fuse-daemon -Ph | grep backup | awk '{print $4}' | tr -d '\n'`
  FILESYSTEMS=`cat /etc/fstab | grep -v '#' | grep -v 'swap' | grep -v 'proc' | awk '{if(NF>0) {print $2}}'`
  MEMORY=`/usr/bin/env free -m | /usr/bin/env grep "Mem" | /usr/bin/env awk '{print $2,"-",$3,"-",$4}'`
  SWAP=`/usr/bin/env free -m | /usr/bin/env grep "Swap" | /usr/bin/env awk '{print $2,"-",$3,"-",$4}'`
  PSA=`/usr/bin/env ps -Afl | /usr/bin/env wc -l`

  # time of day
  HOUR=$(/usr/bin/env date +"%H")
  if [ $HOUR -lt 12  -a $HOUR -ge 0 ]
  then    TIME="morning"
  elif [ $HOUR -lt 17 -a $HOUR -ge 12 ]
  then    TIME="afternoon"
  else
    TIME="evening"
  fi

  #System uptime
  uptime=`/usr/bin/env cat /proc/uptime | cut -f1 -d.`
  upDays=$((uptime/60/60/24))
  upHours=$((uptime/60/60%24))
  upMins=$((uptime/60%60))
  upSecs=$((uptime%60))

  #System load
  LOADAVG=`/usr/bin/env cat /proc/loadavg`
  LOAD1=`echo $LOADAVG | /usr/bin/env awk {'print $1'}`
  LOAD5=`echo $LOADAVG | /usr/bin/env awk {'print $2'}`
  LOAD15=`echo $LOADAVG | /usr/bin/env awk {'print $3'}`

echo ""
echo -e "\e[7m--- GOOD $TIME $USER ----\e[0m"
echo ""
#MESSAGE=`/usr/bin/fortune | /usr/bin/cowsay`
#echo -e " $MESSAGE"

COLOR_COLUMN="\e[1m-"
COLOR_VALUE="\e[31m"
RESET_COLORS="\e[0m"
echo -e "
===========================================================================
$COLOR_COLUMN- Hostname$RESET_COLORS............: $COLOR_VALUE $HOSTNAME $RESET_COLORS
{% if common_show_ipv6 == true %}
$COLOR_COLUMN- IP Address (Main v4)$RESET_COLORS: $COLOR_VALUE $IP $RESET_COLORS  
$COLOR_COLUMN- IP Address (Main v6)$RESET_COLORS: $COLOR_VALUE $IP6 $RESET_COLORS  
{% else %} $COLOR_COLUMN- IP Address (Default)$RESET_COLORS: $COLOR_VALUE $IP $RESET_COLORS
{% endif %}
{% if ansible_distribution == "Alpine" %}
$COLOR_COLUMN- Release$RESET_COLORS.............: $COLOR_VALUE Alpine `/usr/bin/env cat /etc/os-release` $RESET_COLORS
{% else %}
$COLOR_COLUMN- Release$RESET_COLORS.............: $COLOR_VALUE `/usr/bin/env cat /etc/os-release | /usr/bin/env grep PRETTY_NAME | /usr/bin/env cut -d '"' -f 2` $RESET_COLORS
{% endif %}
{% if ansible_distribution != "Alpine" %}
$COLOR_COLUMN- Users$RESET_COLORS...............: $COLOR_VALUE Currently `users | wc -w` user(s) logged on $RESET_COLORS
{% endif %}
=========================================================================== $RESET_COLORS
$COLOR_COLUMN- Current user$RESET_COLORS........: $COLOR_VALUE $USER $RESET_COLORS
$COLOR_COLUMN- Number of CPU$RESET_COLORS.......: $COLOR_VALUE $NUM_CPU $RESET_COLORS
$COLOR_COLUMN- CPU usage$RESET_COLORS...........: $COLOR_VALUE $LOAD1 - $LOAD5 - $LOAD15 (1-5-15 min) $RESET_COLORS
$COLOR_COLUMN- Memory used$RESET_COLORS.........: $COLOR_VALUE $MEMORY (total-used-free) $RESET_COLORS
$COLOR_COLUMN- Swap in use$RESET_COLORS.........: $COLOR_VALUE $SWAP (total-used-free) MB $RESET_COLORS
$COLOR_COLUMN- Processes$RESET_COLORS...........: $COLOR_VALUE $PSA running $RESET_COLORS
$COLOR_COLUMN- System uptime$RESET_COLORS.......: $COLOR_VALUE $upDays days $upHours hours $upMins minutes $upSecs seconds $RESET_COLORS
{% if ansible_virtualization_type != "lxc" %}
$COLOR_COLUMN- Disk space$RESET_COLORS..........: "
for FS in ${FILESYSTEMS}; do
echo -e " $COLOR_COLUMN- ..........$RESET_COLORS..........: $COLOR_VALUE `df -H ${FS} | grep -v 'Filesystem' | grep -v '^[[:space:]]*$' | awk '{print $6 \" \" $4}'` remaining $RESET_COLORS"
done
{% endif %}
echo -e "
===========================================================================
"
if [ -f /etc/motd ]; then
  /usr/bin/env cat /etc/motd
fi
else
# Just exit :)
exit 0
fi;