<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
    "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >

<!--
    Licensed to the Apache Software Foundation (ASF) under one
    or more contributor license agreements.  See the NOTICE file
    distributed with this work for additional information
    regarding copyright ownership.  The ASF licenses this file
    to you under the Apache License, Version 2.0 (the
    "License"); you may not use this file except in compliance
    with the License.  You may obtain a copy of the License at

      http://www.apache.org/licenses/LICENSE-2.0

    Unless required by applicable law or agreed to in writing,
    software distributed under the License is distributed on an
    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
    KIND, either express or implied.  See the License for the
    specific language governing permissions and limitations
    under the License.
-->

<mapper namespace="org.apache.guacamole.auth.jdbc.user.UserParentUserGroupMapper" >

    <!-- Select the names of all parent user groups -->
    <select id="selectChildIdentifiers" resultType="string">
        SELECT name
        FROM [guacamole_user_group_member]
        JOIN [guacamole_user_group] ON [guacamole_user_group_member].user_group_id = [guacamole_user_group].user_group_id
        JOIN [guacamole_entity] ON [guacamole_entity].entity_id = [guacamole_user_group].entity_id
        WHERE
            [guacamole_user_group_member].member_entity_id = #{parent.entityID,jdbcType=INTEGER}
            AND [guacamole_entity].type = 'USER_GROUP'
    </select>

    <!-- Select the names of all readable parent user groups -->
    <select id="selectReadableChildIdentifiers" resultType="string">
        SELECT [guacamole_entity].name
        FROM [guacamole_user_group_member]
        JOIN [guacamole_user_group] ON [guacamole_user_group_member].user_group_id = [guacamole_user_group].user_group_id
        JOIN [guacamole_entity] ON [guacamole_entity].entity_id = [guacamole_user_group].entity_id
        WHERE
            [guacamole_user_group].user_group_id IN (
                <include refid="org.apache.guacamole.auth.jdbc.usergroup.UserGroupMapper.getReadableIDs">
                    <property name="entityID" value="#{user.entityID,jdbcType=INTEGER}"/>
                    <property name="groups"   value="effectiveGroups"/>
                </include>
            )
            AND [guacamole_user_group_member].member_entity_id = #{parent.entityID,jdbcType=INTEGER}
            AND [guacamole_entity].type = 'USER_GROUP'
    </select>

    <!-- Delete parent groups by name -->
    <delete id="delete">
        DELETE [guacamole_user_group_member]
        FROM [guacamole_user_group_member]
        JOIN [guacamole_user_group] ON [guacamole_user_group].user_group_id = [guacamole_user_group_member].user_group_id
        JOIN [guacamole_entity] ON [guacamole_entity].entity_id = [guacamole_user_group].entity_id
        WHERE
            member_entity_id = #{parent.entityID,jdbcType=INTEGER}
            AND [guacamole_entity].type = 'USER_GROUP'
            AND [guacamole_entity].name IN
                <foreach collection="children" item="identifier"
                         open="(" separator="," close=")">
                    #{identifier,jdbcType=VARCHAR}
                </foreach>
    </delete>

    <!-- Insert parent groups by name -->
    <insert id="insert">
        INSERT INTO [guacamole_user_group_member] (
            user_group_id,
            member_entity_id
        )
        SELECT DISTINCT
            [guacamole_user_group].user_group_id,
            #{parent.entityID,jdbcType=INTEGER}
        FROM [guacamole_user_group]
        JOIN [guacamole_entity] ON [guacamole_user_group].entity_id = [guacamole_entity].entity_id
        WHERE
            [guacamole_entity].name IN
                <foreach collection="children" item="identifier"
                         open="(" separator="," close=")">
                    #{identifier,jdbcType=VARCHAR}
                </foreach>
            AND [guacamole_entity].type = 'USER_GROUP'
            AND [guacamole_user_group].user_group_id NOT IN (
                SELECT [guacamole_user_group_member].user_group_id
                FROM [guacamole_user_group_member]
                WHERE [guacamole_user_group_member].member_entity_id = #{parent.entityID,jdbcType=INTEGER}
            )
    </insert>

</mapper>