#!/bin/bash

# base settings
set -e

[ -e /firstboot ] || exit 0

echo 'Setting defaults...'
localectl --no-convert set-keymap de-latin1-nodeadkeys

echo 'Activate services...'
timedatectl set-ntp true

# variables
LABEL="DATA"
DATABASE_PASS="Di1sgMySQLPwd."

# Data partition
echo 'Mount data partition...'
mkdir -p /$LABEL
if [ ! -L "/dev/disk/by-label/$LABEL" ]; then
    echo 'ERROR: Data partition not found!'
    echo "Please create a data partition with ext4 filesystem and label \"$LABEL\":"
    echo "# cfdisk /dev/<disk> (use GPT label, create linux partition)"
    echo "# mkfs.ext4 -L $LABEL /dev/<partition>"
    exit 1
fi
if ! grep -Fq "LABEL=$LABEL" /etc/fstab; then
    echo "LABEL=$LABEL  /$LABEL  ext4  noatime  0 1" >> /etc/fstab
fi
mount -a
if ! mount | grep /$LABEL > /dev/null; then
    echo "ERROR: Could not mount data partition!"
    exit 1
fi

if [ ! -d "/$LABEL/var/lib/mysql/guacamole_db" ]; then
    echo 'Initialize MariaDB...'
    systemctl stop mariadb
    mkdir -p /$LABEL/var/lib/mysql
    rm -rf /$LABEL/var/lib/mysql/*
    cp -a /var/lib/mysql/. /$LABEL/var/lib/mysql
    sed -i "s:^datadir.*:datadir                                    = /$LABEL/var/lib/mysql:" /etc/mysql/mariadb.d/50-distro-server.cnf
    systemctl start mariadb

    echo 'Create Guacamole database...'
    mysql -u root -e "CREATE DATABASE guacamole_db;"
    mysql -u root -e "CREATE USER 'guacamole_user'@'localhost' IDENTIFIED BY '$DATABASE_PASS';"
    mysql -u root -e "GRANT SELECT,INSERT,UPDATE,DELETE ON guacamole_db.* TO 'guacamole_user'@'localhost';"
    mysql -u root -e "FLUSH PRIVILEGES;"
    sed -i "s/#mysql-hostname: localhost/mysql-hostname: localhost/" /etc/guacamole/guacamole.properties
    sed -i "s/#mysql-port: 3306/mysql-port: 3306/" /etc/guacamole/guacamole.properties
    sed -i "s/#mysql-database: guacamole/mysql-database: guacamole_db/" /etc/guacamole/guacamole.properties
    sed -i "s/#mysql-username: guacamole/mysql-username: guacamole_user/" /etc/guacamole/guacamole.properties
    sed -i "s/#mysql-password: some_password/mysql-password: $DATABASE_PASS/" /etc/guacamole/guacamole.properties

    echo 'Initialize Guacamole database...'
    cat /usr/share/guacamole-client/schema/mysql/001-create-schema.sql | mysql -u root guacamole_db
    cat /usr/share/guacamole-client/schema/mysql/002-create-admin-user.sql | mysql -u root guacamole_db

else
    echo 'Start MariaDB...'
    sed -i "s:^datadir.*:datadir                                    = /$LABEL/var/lib/mysql:" /etc/mysql/mariadb.d/50-distro-server.cnf
    systemctl start mariadb
fi
echo 'Enable database...'
systemctl enable mariadb

echo 'Start and enable Guacamole proxy daemon...'
systemctl start guacd
systemctl enable guacd

echo 'Start and enable Guacamole Tomcat instance...'
systemctl start tomcat-8.5
systemctl enable tomcat-8.5

echo 'Start and enable Nginx...'
systemctl start nginx
systemctl enable nginx

rm /firstboot