Change style of diagrams and add the their description file

title CAPIF Interconnection Establishment

participant Administrator

participant "CCF-A" as A

participant "CCF-B" as B

Administrator->A: POST /helper/interconnection/request\n{dstProvDom: CCF-B}

alt CCF-B already interconnected

  A-->Administrator: 409 already interconnected

else new interconnection

  A->B: POST /helper/interconnection/establish\nCCF-A identity (ccfId, domain, CA, publicKey)

  B->B: store CCF-A as interconnected

  B-->A: CCF-B identity (ccfId, domain, CA, publicKey)

  A->A: store CCF-B as interconnected

  == Initial sync of already published APIs ==

  A->B: POST /helper/interconnection/sync

  alt CCF-A is not interconnected

    B-->A: 404

  else interconnected

    B->B: find local APIs shareable with CCF-A\n(isShareable=true, CCF-A in capifProvDoms)

    loop each matching API

      B->A: POST /published-apis/v1/{CCF-B}/service-apis\ncopy with isShareable=false

      A->A: store copy, record CCF-B in pubApiPath

      A-->B: 201

    end

    B-->A: 201

  end

  A->A: find local APIs shareable with CCF-B

  loop each matching API

    A->B: POST /published-apis/v1/{CCF-A}/service-apis\ncopy with isShareable=false

    B->B: store copy, record CCF-A in pubApiPath

    B-->A: 201

  end

  A-->Administrator: 201 CCF-B details

end

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title CAPIF Publish after interconnection

participant APF

participant "CCF-A" as A

participant "CCF-B" as B

APF->A: POST /published-apis/v1/{apfId}/service-apis\nshareableInfo.isShareable, capifProvDoms

A->A: duplicate / feature checks

alt isShareable=false or no target domains

  A->A: store locally only

  A-->APF: 201 Service API

else isShareable=true

  loop each domain in capifProvDoms

    alt domain is not interconnected

      A->A: skip that domain

    else domain is CCF-B

      A->B: POST /published-apis/v1/{CCF-A}/service-apis\ncopy with isShareable=false

      alt CCF-B accepts

        B->B: store copy (publisher = CCF-A)

        B-->A: 201

      else CCF-B unreachable or rejects

        A->B: delete copies already accepted

        A-->APF: 500 (nothing stored on CCF-A)

      end

    end

  end

  A->A: store locally\nrecord reached CCFs in pubApiPath

  A-->APF: 201 Service API

end

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title CAPIF Publish update and delete across CCFs

participant APF

participant "CCF-A" as A

participant "CCF-B" as B

== PUT / PATCH ==

APF->A: PUT or PATCH the service API

note over A: align CCF-B before writing locally\nmatch the copy by the old API name

alt domain removed or sharing turned off

  A->B: DELETE the shared copy

else domain kept

  A->B: PUT the updated definition

else domain added

  A->B: POST a new copy

end

alt CCF-B cannot be aligned

  A-->APF: 500 (CCF-A left unchanged)

else CCF-B aligned

  A->A: store the update

  A-->APF: 200

end

== DELETE ==

APF->A: DELETE the service API

A->B: unpublish the shared copy first

alt CCF-B unreachable

  A-->APF: 500 (local copy kept)

else copy removed on CCF-B

  A->A: delete locally

  A-->APF: 204

end

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