<?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="composableTypesDeclaration">
        <xs:annotation>
            <xs:documentation>
                Composable product types declaration.
            </xs:documentation>
        </xs:annotation>
        <xs:sequence>
            <xs:element name="type" type="composableTypeDeclaration" minOccurs="1" maxOccurs="unbounded" />
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="composableTypeDeclaration">
        <xs:annotation>
            <xs:documentation>
                Composable product type declaration (used to describe possible composite product items).
            </xs:documentation>
        </xs:annotation>
        <xs:attribute name="name" type="xs:string" use="required" />
    </xs:complexType>

    <xs:complexType name="priceModelDeclaration">
        <xs:annotation>
            <xs:documentation>
                Price model declaration.
            </xs:documentation>
        </xs:annotation>
        <xs:attribute name="instance" type="modelName" use="required" />
    </xs:complexType>

    <xs:complexType name="indexerModelDeclaration">
        <xs:annotation>
            <xs:documentation>
                Indexer model declaration.
            </xs:documentation>
        </xs:annotation>
        <xs:attribute name="instance" type="modelName" use="required" />
    </xs:complexType>

    <xs:complexType name="allowedSelectionTypesDeclaration">
        <xs:annotation>
            <xs:documentation>
                Allowed selection types declaration.
            </xs:documentation>
        </xs:annotation>
        <xs:sequence>
            <xs:element name="type" type="allowedSelectionTypeDeclaration" minOccurs="1" maxOccurs="unbounded" />
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="stockIndexerModelDeclaration">
        <xs:annotation>
            <xs:documentation>
                Stock indexer model declaration.
            </xs:documentation>
        </xs:annotation>
        <xs:attribute name="instance" type="modelName" use="required" />
    </xs:complexType>

    <xs:complexType name="customAttributesDeclaration">
        <xs:sequence>
            <xs:element name="attribute" type="customAttributeDeclaration" maxOccurs="unbounded"/>
        </xs:sequence>
    </xs:complexType>

    <xs:complexType name="customAttributeDeclaration">
        <xs:annotation>
            <xs:documentation>
                Custom attribute definition
            </xs:documentation>
        </xs:annotation>
        <xs:attribute name="name" type="xs:string" use="required"/>
        <xs:attribute name="value" type="xs:string" use="optional" default=""/>
    </xs:complexType>

    <xs:complexType name="allowedSelectionTypeDeclaration">
        <xs:annotation>
            <xs:documentation>
                Allowed selection type declaration.
            </xs:documentation>
        </xs:annotation>
        <xs:attribute name="name" type="xs:string" use="required" />
    </xs:complexType>

    <xs:simpleType name="modelName">
        <xs:annotation>
            <xs:documentation>
                Model name can contain only ([\\]?[a-zA-Z_][a-zA-Z0-9_]*)+.
            </xs:documentation>
        </xs:annotation>
        <xs:restriction base="xs:string">
            <xs:pattern value="([\\]?[a-zA-Z_][a-zA-Z0-9_]*)+" />
        </xs:restriction>
    </xs:simpleType>
</xs:schema>
