#!/usr/bin/bash

if lsb_release -a|grep Ubuntu ; then
   echo "This script is designed for CentOS"
   echo "Ubuntu use restore.sh instead, please."
   exit 1
fi

# current timestamp
cdate=`date '+%Y-%m-%d-%H-%M-%S'`

mkdir /home/judge/backup
mkdir /home/judge/backup/${cdate}
mkdir /home/judge/backup/${cdate}/etc
mkdir /home/judge/backup/${cdate}/src

# Get database password
OJ_USERNAME=`cat /home/judge/etc/judge.conf | grep OJ_USER_NAME`
OJ_PASSWORD=`cat /home/judge/etc/judge.conf | grep OJ_PASSWORD`
DB_USERNAME=`echo ${OJ_USERNAME:13}`
DB_PASSWORD=`echo ${OJ_PASSWORD:12}`

echo "dump mysql/mariadb database"
mysqldump -u${DB_USERNAME} -p${DB_PASSWORD} -B jol > /home/judge/backup/${cdate}/jol.sql

echo "backup data directory"
cp -r /home/judge/data /home/judge/backup/${cdate}/data

echo "backup config files"
cp /home/judge/etc/java0.policy /home/judge/backup/${cdate}/etc/java0.policy
cp /home/judge/etc/judge.conf   /home/judge/backup/${cdate}/etc/judge.conf

echo "backup web files"
cp -r /home/judge/src/web /home/judge/backup/${cdate}/src/web

echo "Create backup archive"
tar -zcvf /home/judge/backup/${cdate}.tar.gz -C /home/judge/backup/${cdate} jol.sql data etc src

echo "clean backup temp files"
rm -rf /home/judge/backup/${cdate}