@startuml Register Provider
actor rAppCatalogue
actor rApp
participant rAppManager
box "CAPIF Internal"
participant capifcore
participant providermanager
participant helmmanager
participant publishservice
participant invokerservice
participant discoverservice
participant securityservice
participant eventservice
end box

alt Regtister rApp as both provider and consumer
    rAppCatalogue->rAppManager: Register rApp, with rApp\n descriptor specifying which\n services to expose and consume
    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->rApp: CAPIFEventDetail
        end
        publishservice->capifcore: ServiceAPIDescription\n with apiId
        capifcore->rAppManager: ServiceAPIDescription\n with apiId
    end
    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
        alt#Orange #Orange Subcribed Event Handling
            invokerservice->eventservice: Invoker registered
            eventservice->rApp: CAPIFEventDetail
        end
        invokerservice->capifcore: Services available\n for the invoker
        capifcore->rAppManager: Invoker with invokerId\n and available services
    end
    rAppManager->rAppCatalogue: Ok
end
alt#Yellow #Yellow Discover Services
    rApp->capifcore: Discover services for an\n invoker 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->rApp: Services available for the\n invoker and matching the\n filter parameters
end

alt#Pink #Pink Security Service
    rApp->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->rApp: AccessTokenRsp with\n token
end

alt#Orange #Orange Event Service
    rApp->eventservice: Subscribe to event with EventSubscription
    eventservice->eventservice: Create subscriptionId
    eventservice->rApp: subscriptionId
end
@enduml