@startuml
!include design.plantuml.txt
title 2.2 EPR_HPGetDocuments (2 of 3)\ndocuments within other communities from patient who has his reference community in another community

actor hp as "Health Professional"

box "Health Professional Portal" #DCBEC7
	participant ps_gui as "Health Professional Portal"
	participant ps_x_service_user as "X-Service User"
	participant ps_pix_x_ref_consumer as "Patient Identifier \nCross-reference \nConsumer"
	participant ps_doc_consumer as "Document Consumer\n| X-Service User"
end box

box "IdP" #DFF3F7
	participant idp_user_authentication_provider as "User \nAuthentication \nProvider"
end box

box "Community Components" #FFEFDE
	participant cc_x_assertion_provider as "X-Assertion Provider" 
	participant cc_doc_registry as "Document Registry | X-Service Provider\nAuthorization Decision Consumer | X-Service User" 
	participant cc_mpi_x_ref_manager as "Patient Identifier \nCross-reference \nManger"
  participant cc_adp as "Authorization Decision Provider\n| X-Service Provider"
	participant cc_pix_x_ref_consumer as "Patient Identifier \nCross-reference \nConsumer"
	participant cc_doc_consumer as "Document Consumer"
	participant cc_hpd_provider_info_consumer as "Provider \nInformation \nConsumer"
	participant cc_hpd_provider_info_directory as "Provider \nInformation \nDirectory"
	participant cc_ig as "Initiating Gateway\n| X-Service User" 
	participant cc_rg as "Responding Gateway\n| X-Service Provider"
end box

box "Secondary Systems" #F7A69E
	participant ss_doc_repository as "Document Repository | X-Service Provider\nPolicy Enforcement Point" 
end box

box "Other Communities" #91D2E8
	participant xc_rg as "Responding Gateway\n| X-Service Provider"
	participant xc_ig as "Initiating Gateway\n| X-Service User"
end box

box "Other (reference) Community" #91D2E8
    participant xc_adp as "Authorization Decision Provider\n| X-Service Provider"
end box

== documents within other communities from patient who has \nhis reference community in another community ==

hp -[#black]> ps_gui
activate ps_gui

!include_many step_ps_gui_saml.plantuml.txt

!include step_ps_pix.plantuml.txt

!include_many step_ps_xua.plantuml.txt

!include_many step_ps_xds_reg_2of3.plantuml.txt

hp <[#black]- ps_gui
deactivate ps_gui

== Request from external community ==
  
xc_ig -> cc_rg: [ITI-55] Cross Patient Discovery Request [EPR-SPID]
activate xc_ig
note left: handling of audit record repository retrieval is missing
activate cc_rg

cc_rg -[#black]> cc_pix_x_ref_consumer: query MPI_B-PID from MPI using EPR-SPID in portal
activate cc_pix_x_ref_consumer
cc_pix_x_ref_consumer -> cc_mpi_x_ref_manager: ITI-45 PIX V3 Query [EPR-SPID]
activate cc_mpi_x_ref_manager
cc_pix_x_ref_consumer <- cc_mpi_x_ref_manager: ITI-45 PIX V3 Response [MPI_B-PID]
deactivate cc_mpi_x_ref_manager
cc_rg <[#black]- cc_pix_x_ref_consumer
deactivate cc_pix_x_ref_consumer
xc_ig <- cc_rg: [ITI-55] Cross Patient Discovery Response [MPI_B-PID, homeCommunityId]
deactivate cc_rg
deactivate xc_ig

xc_ig -> cc_rg: [ITI-38] Cross Gateway Query [MPI_B-PID, homeCommunityId]\ngrouped with [ITI-40] Provide X-User Assertion [EPR-SPID]
activate xc_ig
activate cc_rg
cc_rg -[#black]> cc_doc_consumer: retrieve document entries
activate cc_doc_consumer
cc_doc_consumer -> cc_doc_registry: [ITI-18] Registry Stored Query [MPI_A-PID]\ngrouped with [ITI-40] Provide X-User Assertion [EPR-SPID]
activate cc_doc_registry
alt this is reference community of patient
cc_doc_registry -> cc_adp: ADR Authorization Decision Request\ngrouped with [ITI-40] Provide X-User Assertion [EPR-SPID]
activate cc_adp
cc_doc_registry <- cc_adp: ADR Authorization Decision Response
deactivate cc_adp
else look for reference community of patient
  loop policy enforcing from remote community
    cc_doc_registry -> xc_adp: XADR Cross-Community Authorization Decision Request\ngrouped with with [ITI-40] Provide X-User Assertion [EPR-SPID]
    activate xc_adp
    cc_doc_registry <- xc_adp: XADR Cross-Community Authorization Decision Response
    deactivate xc_adp
  end  
end

cc_doc_consumer <- cc_doc_registry: [ITI-18] Registry Stored Query Response
deactivate cc_doc_registry
cc_rg <[#black]- cc_doc_consumer
deactivate cc_doc_consumer
xc_ig <- cc_rg: [ITI-38] Cross Gateway Response
deactivate cc_rg
deactivate xc_ig


xc_ig -> cc_rg: [ITI-39] Cross Gateway Retrieve [homeCommunityId]\ngrouped with [ITI-40] Provide X-User Assertion [EPR-SPID]
activate xc_ig
activate cc_rg
cc_rg -[#black]> cc_doc_consumer: retrieve document entries
activate cc_doc_consumer
cc_doc_consumer -> ss_doc_repository: [ITI-43] Retrieve Document Set\ngrouped with [ITI-40] Provide X-User Assertion [EPR-SPID]
activate ss_doc_repository
note right ss_doc_repository: [CH:ADR] Perform Enforcement of\nXDS Retrieve Document Set transactions (3.1.12)
cc_doc_consumer <- ss_doc_repository: [ITI-43] Retrieve Document Set Response
deactivate ss_doc_repository
cc_rg <[#black]- cc_doc_consumer
deactivate cc_doc_consumer
xc_ig <- cc_rg: [ITI-39] Cross Gateway Retrieve Response

deactivate cc_rg
deactivate xc_ig
@enduml