<?xml version="1.0" encoding="UTF-8"?>
<xs:schema xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:addon="https://openhab.org/schemas/addon/v1.0.0"
	xmlns:config-description="https://openhab.org/schemas/config-description/v1.0.0"
	targetNamespace="https://openhab.org/schemas/addon/v1.0.0">

	<xs:import namespace="https://openhab.org/schemas/config-description/v1.0.0"
		schemaLocation="https://openhab.org/schemas/config-description-1.0.0.xsd"/>

	<xs:element name="addon" type="addon:addonInfo"/>

	<xs:complexType name="addonInfo">
		<xs:sequence>
			<xs:element name="type" type="addon:addonType"/>
			<xs:element name="name" type="xs:string"/>
			<xs:element name="description" type="xs:string"/>
			<xs:element name="connection" type="addon:connectionType" minOccurs="0"/>
			<xs:element name="countries" type="addon:countryType" minOccurs="0">
				<xs:annotation>
					<xs:documentation>Comma-separated list of two-letter ISO country codes.</xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:element name="service-id" type="xs:string" minOccurs="0">
				<xs:annotation>
					<xs:documentation>The ID (service.pid or component.name) of the main add-on service, which can be configured
						through OSGi configuration admin service. Should only be used in combination with a config description definition.
						The default value is &lt;type&gt;.&lt;name&gt;</xs:documentation>
				</xs:annotation>
			</xs:element>
			<xs:choice minOccurs="0">
				<xs:element name="config-description" type="config-description:configDescription"/>
				<xs:element name="config-description-ref" type="config-description:configDescriptionRef"/>
			</xs:choice>
			<xs:element name="discovery-methods" type="addon:discoveryMethodsType" minOccurs="0"/>
		</xs:sequence>
		<xs:attribute name="id" type="config-description:idRestrictionPattern" use="required">
			<xs:annotation>
				<xs:documentation>The id is used to construct the UID of this add-on to &lt;type&gt;-&lt;name&gt;</xs:documentation>
			</xs:annotation>
		</xs:attribute>
	</xs:complexType>

	<xs:simpleType name="addonType">
		<xs:restriction base="xs:string">
			<xs:enumeration value="automation"/>
			<xs:enumeration value="binding"/>
			<xs:enumeration value="misc"/>
			<xs:enumeration value="persistence"/>
			<xs:enumeration value="transformation"/>
			<xs:enumeration value="ui"/>
			<xs:enumeration value="voice"/>
		</xs:restriction>
	</xs:simpleType>

	<xs:simpleType name="connectionType">
		<xs:restriction base="xs:string">
			<xs:enumeration value="none">
				<xs:annotation>
					<xs:documentation>No interaction with external systems at all</xs:documentation>
				</xs:annotation>
			</xs:enumeration>
			<xs:enumeration value="local">
				<xs:annotation>
					<xs:documentation>Interaction with external systems, without internet access</xs:documentation>
				</xs:annotation>
			</xs:enumeration>
			<xs:enumeration value="hybrid">
				<xs:annotation>
					<xs:documentation>Interaction with external systems, internet access required only for extended functionality (such
						as discovery)</xs:documentation>
				</xs:annotation>
			</xs:enumeration>
			<xs:enumeration value="cloud">
				<xs:annotation>
					<xs:documentation>Interaction with external systems, internet access required for normal operation</xs:documentation>
				</xs:annotation>
			</xs:enumeration>
		</xs:restriction>
	</xs:simpleType>

	<xs:simpleType name="countryType">
		<xs:restriction base="xs:string">
			<xs:pattern value="[a-z]{2}(,[a-z]{2})*"/>
		</xs:restriction>
	</xs:simpleType>

	<xs:complexType name="discoveryMethodsType">
		<xs:sequence>
			<xs:element type="addon:discoveryMethodType" name="discovery-method" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="discoveryMethodType">
		<xs:sequence>
			<xs:element type="xs:string" name="service-type"/>
			<xs:element type="addon:ParametersType" name="discovery-parameters" minOccurs="0"/>
			<xs:element type="addon:matchPropertiesType" name="match-properties" minOccurs="0"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="ParametersType">
		<xs:sequence>
			<xs:element type="addon:parameterType" name="discovery-parameter" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="parameterType">
		<xs:sequence>
			<xs:element type="xs:string" name="name"/>
			<xs:element type="xs:string" name="value"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="matchPropertiesType">
		<xs:sequence>
			<xs:element type="addon:matchPropertyType" name="match-property" maxOccurs="unbounded"/>
		</xs:sequence>
	</xs:complexType>

	<xs:complexType name="matchPropertyType">
		<xs:sequence>
			<xs:element type="xs:string" name="name"/>
			<xs:element type="xs:string" name="regex"/>
		</xs:sequence>
	</xs:complexType>

</xs:schema>
