#!/bin/sh

# We have to re-enable SCL environment, because /sbin/service
# clears almost all environment variables.
# Since X_SCLS is cleared as well, we lose information about other
# collections enabled.
. /opt/rh/rh-mariadb!!!VER!!!/service-environment
for sclname in $RH_MARIADB!!!VER!!!_SCLS_ENABLED ; do
    . /opt/rh/$sclname/enable
    export X_SCLS="$X_SCLS $sclname"
done

# we want start daemon only inside "scl enable" invocation
if ! scl_enabled $sclname ; then
    echo "Collection $sclname has to be listed in /opt/rh/rh-mariadb!!!VER!!!/service-environment"
    exit 1
fi


status=$(/sbin/e-smith/config getprop mariadb status)
fixtables=$(/sbin/e-smith/config getprop mariadb autofixtables || echo "disabled")
if [ "$fixtables" = "enabled" ]; then
	/sbin/e-smith/config delprop mariadb failsbackup
fi
failsbackup=$(/sbin/e-smith/config getprop mariadb failsbackup || echo "disabled")


onfailure () {
    db=$1
    message=""
    if [ "$failsbackup" = "enabled" ]; then
        exit 1;
	message="There was an error trying to dump database $db, please fix this db. We stop there without backups."
	echo $message
	echo $message | /usr/bin/mail -s "error on backup of $db MariaDB !!!VER!!! database" admin
    fi
    message="$message \nThere was an error trying to dump database $db, please check for table errors in this db. Forcing a backup of the corrupted DB."
    /opt/rh/rh-mariadb!!!VER!!!/root/usr/bin/mysqldump --socket=!!!SOCKET!!! --force --ignore-table=mysql.event --single-transaction --add-drop-table -QB "$db" -r /home/e-smith/db/mariadb!!!VER!!!/"$db"-failed.dump || message="$message \nFailed to force backup of corrupted db $db as $db-failed.dump" >&2
    if [ "$fixtables" = "enabled" ]; then
	repair="failure"
	message="$message \nTrying to auto-repair the db and do a backup after..."
	/opt/rh/rh-mariadb!!!VER!!!/root/usr/bin/mysqlcheck --socket=!!!SOCKET!!! -s --auto-repair -c "$db"  &&  \
   	/opt/rh/rh-mariadb!!!VER!!!/root/usr/bin/mysqldump --socket=!!!SOCKET!!! --ignore-table=mysql.event --single-transaction --add-drop-table -QB "$db" -r /home/e-smith/db/mariadb!!!VER!!!/"$db".dump && repair="success"
	message="$message \n => $repair"
    fi
    echo $message
    echo $message | /usr/bin/mail -s "error on backup of $db MariaDB database" admin
}

if [ "$status" = "disabled" ]
then
    echo "mysqld is disabled - no tables dumped" >&2
    exit 0
fi
for db in $(/opt/rh/rh-mariadb!!!VER!!!/root/usr/bin/mysql --socket=!!!SOCKET!!! -BNre "show databases;"|egrep -vi "^information_schema$|^performance_schema$") 
do
    /opt/rh/rh-mariadb!!!VER!!!/root/usr/bin/mysqldump --socket=!!!SOCKET!!! --ignore-table=mysql.event --single-transaction --add-drop-table -QB "$db" -r /home/e-smith/db/mariadb!!!VER!!!/"$db".dump || onfailure $db
done