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post_install() {
    echo
    
    systemctl daemon-reload
    
    
    ### Nginx ###
    
    # Configure it with the folder structure used in Debian-based distributions
    if [ -f /etc/nginx/nginx.conf ]
    then
        if ( ! grep -q 'sites-enabled' /etc/nginx/nginx.conf )
        then
            sed -i 's|http {|http {\'$'\n    include       sites-enabled/*.conf;|g' /etc/nginx/nginx.conf
        fi
        systemctl is-active --quiet nginx && systemctl stop nginx
        systemctl start nginx
    fi
    
    
    ### PHP-FPM ###
    
    # Set local timezone in /etc/php/conf.d/zoneminder.ini
    sed -i 's|PLACEHOLDER|'`timedatectl | grep "Time zone" | tr -s ' ' | cut -f4 -d ' '`'|g' /etc/php/conf.d/zoneminder.ini
    systemctl is-active --quiet php-fpm && systemctl stop php-fpm
    systemctl start php-fpm
    
    
    ### fcgiwrap ###
    
    systemctl is-active --quiet fcgiwrap.socket && systemctl stop fcgiwrap.socket
    systemctl is-active --quiet fcgiwrap && systemctl stop fcgiwrap
    systemctl start fcgiwrap.socket
    
    
    ### MariaDB ###
    
    systemctl is-active --quiet mariadb && systemctl stop mariadb
    
    # Initialize MariaDB's default database if it's not already initialized
    if [ ! -d /var/lib/mysql/mysql ]
    then
        # NOTE: This will need to be changed when MariaDB 10.2 hits the repos, as mysql_install_db has been deprecated in favor of mysqld
        mysql_install_db --user=mysql --basedir=/usr --datadir=/var/lib/mysql 2> /dev/null
    fi
    
    systemctl start mariadb
    
    
    ### ZoneMinder ###
    
    # Create ZoneMinder's database & user if they do not exist
    if [ ! -d /var/lib/mysql/zm ]
    then
        # Check for database root password
        if [[ "$(mysql -uroot -e "select * from mysql.user;" 2>&1)" = *"Access denied"* ]]
        then
            # If a database root password is set
            echo \* Secure MariaDB installation found, please enter the database root password when prompted.
            echo
            mysql -uroot -p < /usr/share/zoneminder/db/zm_create.sql
            echo
            echo \* One more time...
            echo
            mysql -uroot -p -e "grant select,insert,update,delete,create,alter,index,lock tables on zm.* to 'zmuser'@localhost identified by 'zmpass';"
            echo
        else
            # If a database root password is not set
            mysql -uroot < /usr/share/zoneminder/db/zm_create.sql
            mysql -uroot -e "grant select,insert,update,delete,create,alter,index,lock tables on zm.* to 'zmuser'@localhost identified by 'zmpass';"
        fi
    fi
    
    systemctl is-active --quiet zoneminder && systemctl stop zoneminder
    systemd-tmpfiles --create
    systemctl start zoneminder
    
    
    echo ---------------
    echo
    echo ZoneMinder is listening at http://localhost:8095    
    echo
}

post_upgrade() {
    post_install
    
    echo ---------------
    echo
    echo The ZoneMinder updater will now run.
    
    # Make sure ZoneMinder is *not* running before we attempt to use its updater
    systemctl is-active --quiet zoneminder && systemctl stop zoneminder
    /usr/bin/zmupdate.pl -f
    systemctl start zoneminder
    
    echo
    echo Update complete.
    echo
}

post_remove() {
    systemctl daemon-reload && systemctl is-active --quiet zoneminder && systemctl stop zoneminder
    
    echo
    echo ZoneMinder\'s database and user have been left intact. You can remove them by running the following:
    echo
    echo mysql -uroot -p -e \"drop database zm\;\"
    echo mysql -uroot -p -e \"drop user \'zmuser\'@localhost\;\"
    echo
    echo If you haven\'t yet configured a password for the database root user, omit the \'-p\' option.
    echo
}