@startuml Register Provider
actor rAppCatalogue
participant rAppManager
participant "consumer rApp" as capp
participant "provider rApp" as papp
box "CAPIF Internal"
participant capifcore
participant providermanager
participant helmmanager
participant publishservice
participant invokerservice
participant discoverservice
participant securityservice
participant eventservice
participant loggingservice
end box

alt Register Consumer rApp
    rAppCatalogue->rAppManager: Register consumer \nrApp
    alt#coral #coral Register Invoker
        rAppManager->capifcore: Register invoker with\n APIInvokerEnrolmentDetails
        capifcore->invokerservice: Register invoker
        invokerservice->invokerservice: Create apiInvokerId and\n onboardingSecret
        invokerservice->publishservice: Get available services
        publishservice->invokerservice: Available services
        invokerservice->capifcore: Services available\n for the invoker
        capifcore->rAppManager: Invoker with invokerId\n and available services
    end
    rAppManager->capp: invokerId and\n available services
    rAppManager->rAppCatalogue: Ok
    alt#Orange #Orange Subscribe to publishing events
        capp->eventservice: Subscribe to events\n with EventSubscription
        eventservice->eventservice: Create subscriptionId
        eventservice->capp: subscriptionId
    end
end
alt Register provider rApp
    rAppCatalogue->rAppManager: Register rApp, with\n rApp descriptor\n specifying which\n services to expose
    alt#paleGreen #paleGreen Provider Enrolment
        rAppManager->capifcore: Register provider with\n APIProviderEnrolmentDetails
        capifcore->providermanager:Register provider
        providermanager->providermanager: Create apiProvDomId\n and apiProvFuncIds\n for provided functions
        providermanager->capifcore: Provider with\n apfId and aefIds
        capifcore->rAppManager: Provider with\n apfId and aefIds
    end
    alt#LightBlue #LightBlue Publish Service
        rAppManager->capifcore: Publish services\n with providerId\n andServiceAPIDescription
        capifcore->publishservice: Publish services
        publishservice->providermanager: Are AEFs registered\n for provider?
        providermanager->publishservice: Ok
        publishservice->publishservice: Create apiId
        publishservice->helmmanager: Install chart
        note right: Optional and not decided yet
        helmmanager->publishservice: Ok
        alt#Orange #Orange Subcribed Event Handling
            publishservice->eventservice: Service published
            eventservice->capp: CAPIFEventDetail
        end
        publishservice->capifcore: ServiceAPIDescription\n with apiId
        capifcore->rAppManager: ServiceAPIDescription\n with apiId
    end
    rAppManager->papp: apiProvDomId,\n apiProvFuncIds,\n and apiId
    rAppManager->rAppCatalogue: Ok
end
alt#Yellow #Yellow Discover Services
    capp->capifcore: Discover services\n with apiInvokerId\n and filter parameters
    capifcore->discoverservice: Get services available\n for the invoker
    discoverservice->invokerservice: Get services available\n for the invoker
    invokerservice->publishservice: Get available services
    publishservice->invokerservice: Available services
    invokerservice->discoverservice: Services available \nfor the invoker
    discoverservice->capifcore: Services available for the\n invoker matching the\n filter parameters
    capifcore->capp: Services available\n matching the\n filter parameters
end

alt Invoke Service
    alt#Pink #Pink Security Service
        capp->securityservice: Request token\n for service with\n AccessTokenReq
        securityservice->invokerservice: Is invoker registered?
        invokerservice->securityservice: Ok
        securityservice->invokerservice: Is secret valid?
        invokerservice->securityservice: Ok
        securityservice->providermanager: Is function providing\n service registered?
        providermanager->securityservice: Ok
        securityservice->publishservice: Is service published?
        publishservice->securityservice: Ok
        securityservice->capp: AccessTokenRsp\n with token
    end
    capp->papp: Invoke service\n with token
    alt#Silver #Silver Log invocation
        papp->loggingservice: Log invocation\n with InvocationLog
    end
    papp->capp: Result of\n invocation
end
@enduml