#!/bin/bash

set -e

HOST="${1}"
DATABASE="${2}"
USERNAME="${3}"

function usage() {
	echo "Usage: ${0} <hostname> <database> <username>"
	echo "Example: ${0} db-1.example.com database_name username"
	exit 1
}
if [ -z "${HOST}" ]; then
	usage
fi

if [ -z "${DATABASE}" ]; then
	usage
fi

if [ -z "${USERNAME}" ]; then
	usage
fi

PASSWORD=$(openssl rand 32 | base64)


SQL="CREATE DATABASE ${DATABASE}; CREATE USER '${USERNAME}'@'%' IDENTIFIED BY '${PASSWORD}'; GRANT ALL PRIVILEGES ON ${DATABASE}.* TO '${USERNAME}'@'%';"

echo "Execute the following command on ${HOST} [Y/n]?"
echo "$SQL"

read -r x
case $x in
	y|Y|"")
    true
    ;;
  *)
    echo "script aborted"
    exit 1
    ;;
esac

ssh -t "${HOST}" "docker exec -ti mariadb-db-1 mariadb -u root -p\$(puppet lookup --render-as s mariadb_root_password 2> /dev/null) -e \"${SQL}\""


echo "Command successful"
echo "Database: ${DATABASE}"
echo "Username: ${USERNAME}"
echo "Password: ${PASSWORD}"