#!/bin/bash
#Start over
# SwITNet Ltd © - 2024, https://switnet.net/
# GPLv3 or later.

while getopts m: option
do
	case "${option}"
	in
		m) MODE=${OPTARG};;
		\?) echo "Usage: sudo bash ./$0 [-m debug]" && exit;;
	esac
done

#DEBUG
if [ "$MODE" = "debug" ]; then
set -x
fi

#Check if user is root
if ! [ "$(id -u)" = 0 ]; then
   echo "You need to be root or have sudo privileges!"
   exit 0
fi

wait_seconds() {
secs=$(($1))
while [ $secs -gt 0 ]; do
   echo -ne "$secs\033[0K\r"
   sleep 1
   : $((secs--))
done
}
remove_residuals() {
  if [ -d "$1" ]; then
    rm -r "$1"
  fi
}
purge_debconf() {
  echo PURGE | debconf-communicate "$1"
}
remove_services() {
  systemctl disable "$1"
  systemctl stop "$1"
}
echo -e '
########################################################################
                Welcome to the Start Over cleaner script
########################################################################
                    by Software, IT & Networks Ltd
\n'

SYNC_USER="$(find /home -maxdepth 1 -type d |awk '/jbsync/{print}')"
DOMAIN="$(find /etc/prosody/conf.d/ -name \*.lua|awk -F'.cfg' '!/localhost/{print $1}'|xargs basename)"

echo "We are about to remove and clean all the jitsi-meet platform bits and pieces...
Please make sure you have backed up anything you don't want to loose."

echo "
# WARGNING #: This is only recommended if you want to start over a failed installation,
or plain and simple remove jitsi from your system."

while [[ "$CONTINUE_PURGE1" != "yes" && "$CONTINUE_PURGE1" != "no" ]]
do
read -p "> Do you want to continue?: (yes or no)"$'\n' -r CONTINUE_PURGE1
if [ "$CONTINUE_PURGE1" = "no" ]; then
    echo "  Good, see you next time..."
    exit
elif [ "$CONTINUE_PURGE1" = "yes" ]; then
    echo ""
fi
done

echo "Let me ask just one more time..."
while [[ "$CONTINUE_PURGE2" != "yes" && "$CONTINUE_PURGE2" != "no" ]]
do
read -p "> Do you want to continue?: (yes or no)"$'\n' -r CONTINUE_PURGE2
if [ "$CONTINUE_PURGE2" = "no" ]; then
    echo "  Good, see you next time..."
    exit
elif [ "$CONTINUE_PURGE2" = "yes" ]; then
    echo "No going back, let's start..."
    wait_seconds 10
fi
done

#Purging all jitsi meet packages
apt-get -y purge jibri \
                 jicofo \
                 jigasi \
                 jitsi-meet \
                 jitsi-meet-web \
                 jitsi-meet-web-config \
                 jitsi-meet-prosody \
                 jitsi-meet-turnserver \
                 jitsi-videobridge2 \
                 prosody

#Chome related packages
apt-get -y purge google-chrome-stable
rm /usr/local/bin/chromedriver

#Services stop
remove_services jibri
remove_services jibri-icewm
remove_services jibri-xorg

#Cleaning packages
apt-get -y autoremove
apt-get clean

#Removing residual files
remove_residuals /etc/jitsi
remove_residuals /opt/jitsi
remove_residuals /usr/share/jicofo
remove_residuals /usr/share/jitsi-*

#Clean /etc/hosts
sed -i "/$DOMAIN/d" /etc/hosts

echo "#Purging debconf db"
purge_debconf jicofo
purge_debconf jigasi
purge_debconf jitsi-meet
purge_debconf jitsi-meet-prosody
purge_debconf jitsi-meet-turnserver
purge_debconf jitsi-meet-web-config
purge_debconf jitsi-videobridge2

#Remove unused users & groups
if [ -n "$SYNC_USER" ]; then
  deluser --remove-home "$SYNC_USER"
fi
if [ -d /home/jibri ]; then
  deluser --remove-home  jibri
  rm -r /home/jibri
fi
groupdel  jibri

#Remove crontab
crontab -l | grep -v '@weekly certbot renew --nginx' | crontab -
crontab -l

echo "We are done..."