#!/bin/sh
set -e

sql_quote()
{
	echo "SELECT QUOTE(FROM_BASE64('$( echo -n "$1" | base64 )'));" | mariadb -u root -N
}

rm -f /db/.dockerhealthcheck

echo

# install database if doesn't exist
if ! [ -f /db/.installed ]
then
	echo "database doesn't exist."
	echo

	echo ">>> clean..."
	rm -rf -- $(find /db -mindepth 1 -maxdepth 1)

	echo ">>> creating database..."
	chmod -R 777 /db
	mariadb-install-db --user=db --datadir=/db
	echo

	echo ">>> running mariadbd..."
	DATABASE_PWD="$(cat /run/secrets/database-pwd)"
	DATABASE_PWD_ROOT="$(cat /run/secrets/database-pwd-root)"
	# run mariadbd and wait for it to be working
	mariadbd -u root &
	while ! /ismariadbrunning.sh && kill -0 $!
	do sleep 1; done
	if ! kill -0 $!
	then
		echo
		echo "failed when running mariadbd :("
		exit 1
	fi
	echo

	echo ">>> configure..."
	echo "
		FLUSH PRIVILEGES;
		CREATE DATABASE wp;
		GRANT ALL PRIVILEGES ON wp.* TO db IDENTIFIED BY $( sql_quote "$DATABASE_PWD" );
		ALTER USER root@localhost IDENTIFIED BY $( sql_quote "$DATABASE_PWD_ROOT" );
		FLUSH PRIVILEGES;
	" | mariadb -u root
	kill $!
	echo

	echo ">>> kill mariadbd..."
	>/db/.installed echo "if this file exists, that means the database is entirely installed."
	echo

	echo "database created!"
	echo
fi

echo "to recreate a new database, remove the db volume of this compose."
echo

# run mariadb
touch /db/.dockerhealthcheck
mariadbd -u root