<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema"
            xmlns:efti="http://efti.eu/v1/consignment/common"
            xmlns:efti-ed="http://efti.eu/v1/edelivery"
            targetNamespace="http://efti.eu/v1/edelivery"
            elementFormDefault="qualified">

  <xsd:import namespace="http://efti.eu/v1/consignment/common" schemaLocation="consignment-common.xsd"/>

  <xsd:complexType name="UIL">
    <xsd:sequence>
      <xsd:element name="gateId" type="xsd:token"/>
      <xsd:element name="platformId" type="xsd:token"/>
      <xsd:element name="datasetId" type="xsd:token"/>
    </xsd:sequence>
  </xsd:complexType>

  <xsd:simpleType name="ResponseStatus">
    <xsd:annotation>
      <xsd:documentation>
        Status codes for response. Status codes are based on http status codes
        where some semantics are adapted for our purpose.
      </xsd:documentation>
    </xsd:annotation>
    <xsd:restriction base="xsd:token">
      <xsd:enumeration value="200">
        <xsd:annotation>
          <xsd:documentation>
            OK - Standard response for successful requests
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="400">
        <xsd:annotation>
          <xsd:documentation>
            Bad Request - The gate cannot or will not process the request due to an apparent client error
            (e.g., malformed request syntax, size too large).
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="404">
        <xsd:annotation>
          <xsd:documentation>
            Not Found - The requested resource e.g. consignment does not exist.
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="500">
        <xsd:annotation>
          <xsd:documentation>
            Internal Server Error - Any internal error in the gate.
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="501">
        <xsd:annotation>
          <xsd:documentation>
            Not Implemented - Gate does not support this version of the service.
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="502">
        <xsd:annotation>
          <xsd:documentation>
            Bad Gateway - Gate received an invalid response from the platform
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="503">
        <xsd:annotation>
          <xsd:documentation>
            Service Unavailable - The server cannot handle the request (because it is overloaded or down for
            maintenance).
            Generally, this is a temporary state.
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
      <xsd:enumeration value="504">
        <xsd:annotation>
          <xsd:documentation>
            Gateway Timeout - The gate did not receive a timely response from the platform
          </xsd:documentation>
        </xsd:annotation>
      </xsd:enumeration>
    </xsd:restriction>
  </xsd:simpleType>

  <xsd:complexType name="Response">
    <xsd:annotation>
      <xsd:documentation>
        Any edelivery payload response
      </xsd:documentation>
    </xsd:annotation>
    <xsd:sequence>
      <xsd:element name="description" type="xsd:string" minOccurs="0"/>
    </xsd:sequence>
    <xsd:attribute name="status" type="efti-ed:ResponseStatus" use="required"/>
    <xsd:attribute name="requestId" type="xsd:token">
      <xsd:annotation>
        <xsd:documentation>
          This is a response to a request, which is referred by this request id
        </xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
  </xsd:complexType>

  <xsd:complexType name="Request">
    <xsd:annotation>
      <xsd:documentation>
        Any edelivery payload request
      </xsd:documentation>
    </xsd:annotation>
    <xsd:attribute name="requestId" type="xsd:token" use="required">
      <xsd:annotation>
        <xsd:documentation>
          The unique identification number of the request [C(2024) 4572].
          This is the request id from the original client e.g. AAP or platform.
          Gate should retransmit the request id to other gates and platforms when completing the request for AAP.
          This identifies all the requests in the request chain from the original sender and is used for auditing purposes.
          For connecting edelivery response to edelivery request the gates should use
          the standard edelivery fields: "RefToMessageId" and "ConversationId" [ebMS 3.0].
        </xsd:documentation>
      </xsd:annotation>
    </xsd:attribute>
  </xsd:complexType>

  <xsd:complexType name="UILQuery">
    <xsd:annotation>
      <xsd:documentation>
        Query request message to find a consignment using UIL - (any efti subset).
        Returns the identified consignment in the requested subset.
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexContent>
      <xsd:extension base="efti-ed:Request">
        <xsd:sequence>
          <!-- uil of the consignment -->
          <xsd:element name="uil" type="efti-ed:UIL"/>
          <!-- subset id of the consignment e.g. identifier, EU1, FI or FI01 -->
          <xsd:element name="subsetId" type="xsd:string" maxOccurs="unbounded"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <xsd:complexType name="UILResponse">
    <xsd:annotation>
      <xsd:documentation>
        Response payload to uil request. Returns consignment in requested subset.
        If consignment does not exist return empty response.
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexContent>
      <xsd:extension base="efti-ed:Response">
        <xsd:sequence>
          <xsd:element ref="efti:consignment" minOccurs="0"/>
        </xsd:sequence>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <xsd:element name="uilQuery" type="efti-ed:UILQuery"/>
  <xsd:element name="uilResponse" type="efti-ed:UILResponse"/>

  <xsd:complexType name="PostFollowUpRequest">
    <xsd:annotation>
      <xsd:documentation>
        Save follow-up message to some specific data set identified by UIL.
      </xsd:documentation>
    </xsd:annotation>
    <xsd:complexContent>
      <xsd:extension base="efti-ed:Request">
        <xsd:sequence>
          <xsd:element name="uil" type="efti-ed:UIL"/>
          <xsd:element name="message">
            <xsd:simpleType>
              <xsd:restriction base="xsd:string">
                <xsd:minLength value="2"/>
              </xsd:restriction>
            </xsd:simpleType>
          </xsd:element>
          <xsd:element name="attachment" type="efti-ed:FollowUpAttachment" minOccurs="0"/>
        </xsd:sequence>
        <xsd:attribute name="uilQueryRequestId" type="xsd:token" use="required">
          <xsd:annotation>
            <xsd:documentation>
              This follow up message relates to the information retrieved using this uil query.
            </xsd:documentation>
          </xsd:annotation>
        </xsd:attribute>
      </xsd:extension>
    </xsd:complexContent>
  </xsd:complexType>

  <xsd:complexType name="FollowUpAttachment">
    <xsd:simpleContent>
      <xsd:extension base="xsd:base64Binary">
        <xsd:attribute name="mimeType" type="xsd:string" use="required"/>
        <xsd:attribute name="fileName" type="xsd:string" use="required"/>
      </xsd:extension>
    </xsd:simpleContent>
  </xsd:complexType>

  <xsd:element name="postFollowUpRequest" type="efti-ed:PostFollowUpRequest"/>
  <xsd:element name="postFollowUpResponse" type="efti-ed:Response"/>
</xsd:schema>