<?xml version="1.0" encoding="UTF-8"?>
<!--
/**
 * Copyright © Magento, Inc. All rights reserved.
 * See COPYING.txt for license details.
 */
-->
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema">
    <xs:complexType name="argumentType" abstract="true" mixed="true">
        <xs:attribute name="name" use="required"/>
    </xs:complexType>

    <xs:complexType name="argumentsType">
        <xs:sequence>
            <xs:element name="argument" type="argumentType" minOccurs="1" maxOccurs="unbounded">
                <xs:key name="argumentItemName">
                    <xs:selector xpath="item"></xs:selector>
                    <xs:field xpath="@name"></xs:field>
                </xs:key>
            </xs:element>
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="array" mixed="true">
        <xs:complexContent>
            <xs:extension base="argumentType">
                <xs:sequence>
                    <xs:element name="item" type="argumentType" minOccurs="0" maxOccurs="unbounded">
                        <xs:key name="itemName">
                            <xs:selector xpath="item"></xs:selector>
                            <xs:field xpath="@name"></xs:field>
                        </xs:key>
                    </xs:element>
                </xs:sequence>
            </xs:extension>
        </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="number">
        <xs:complexContent>
            <xs:extension base="argumentType"/>
        </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="boolean">
        <xs:complexContent>
            <xs:extension base="argumentType"/>
        </xs:complexContent>
    </xs:complexType>

    <xs:complexType name="string">
        <xs:complexContent>
            <xs:extension base="argumentType" />
        </xs:complexContent>
    </xs:complexType>

    <xs:element name="config">
        <xs:complexType>
            <xs:sequence>
                <xs:element type="exchangeConfigType" name="exchange" maxOccurs="unbounded" minOccurs="0">
                    <xs:unique name="unique-binding-id">
                        <xs:annotation>
                            <xs:documentation>
                                Binding id must be unique
                            </xs:documentation>
                        </xs:annotation>
                        <xs:selector xpath="binding"/>
                        <xs:field xpath="@id"/>
                    </xs:unique>
                </xs:element>
            </xs:sequence>
        </xs:complexType>
        <xs:unique name="unique-exchange-name-connection">
            <xs:annotation>
                <xs:documentation>
                    Exchange name must be unique
                </xs:documentation>
            </xs:annotation>
            <xs:selector xpath="exchange"/>
            <xs:field xpath="@name"/>
            <xs:field xpath="@connection"/>
        </xs:unique>
    </xs:element>

    <xs:complexType name="bindingType" mixed="true">
        <xs:sequence>
            <xs:element type="argumentsType" name="arguments" minOccurs="0" maxOccurs="unbounded"/>
        </xs:sequence>
        <xs:attribute type="xs:string" name="id" use="required"/>
        <xs:attribute type="destinationType" name="destinationType" use="optional"/>
        <xs:attribute type="xs:string" name="destination" use="optional"/>
        <xs:attribute type="xs:boolean" name="disabled" use="optional"/>
        <xs:attribute type="xs:string" name="topic" use="optional"/>
    </xs:complexType>

    <xs:complexType name="exchangeConfigType">
        <xs:choice maxOccurs="unbounded">
            <xs:element type="argumentsType" name="arguments" minOccurs="0" maxOccurs="unbounded"/>
            <xs:element type="bindingType" name="binding" maxOccurs="unbounded" minOccurs="0"/>
        </xs:choice>
        <xs:attribute type="xs:string" name="name" use="required"/>
        <xs:attribute type="exchangeType" name="type" use="optional"/>
        <xs:attribute name="connection" type="xs:string" use="required" />
        <xs:attribute type="xs:boolean" name="durable" use="optional"/>
        <xs:attribute type="xs:boolean" name="autoDelete" use="optional"/>
        <xs:attribute type="xs:boolean" name="internal" use="optional"/>
    </xs:complexType>

    <xs:simpleType name="exchangeType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="topic" />
        </xs:restriction>
    </xs:simpleType>

    <xs:simpleType name="destinationType">
        <xs:restriction base="xs:string">
            <xs:enumeration value="queue" />
        </xs:restriction>
    </xs:simpleType>
</xs:schema>