#!/bin/sh -e

state_is="$( cat "$__object/explorer/state" )"

state_should="$( cat "$__object/parameter/state" )"

if [ "$state_is" = "$state_should" ]
then
    exit 0
fi

if [ -f "$__object/parameter/name" ]
then
    name="$( cat "$__object/parameter/name" )"
else
    name="$__object_id"
fi

host="$( cat "$__object/parameter/host" )"

if [ -f "$__object/parameter/password" ]
then
    password="$( cat "$__object/parameter/password" )"
else
    if [ "$state_should" = 'present' ]
    then
        echo '--password needed' >&2
        exit 1
    else
        password=''
    fi
fi

if [ "$state_is" = 'absent' ] && [ "$state_should" = 'present' ]
then
    echo "mysql -e 'create user \`$name\`@\`$host\` identified by \"$password\"'"
    echo "create user $name@$host" >> "$__messages_out"

elif [ "$state_is" != 'absent' ] && [ "$state_should" = 'absent' ]
then
    echo "mysql -e 'drop user \`$name\`@\`$host\`'"
    echo "drop user $name@$host" >> "$__messages_out"

elif [ "$state_is" = 'change-password' ]
then
    # this only works with MySQL 5.7.6 and later or MariaDB 10.1.20 and later
    echo "mysql -e 'alter user \`$name\`@\`$host\` identified by \"$password\"'"
    echo "mysql -e 'flush privileges'"
    echo "change password $name@$host" >> "$__messages_out"
fi