@startuml

package subscriptionsAPI <<Frame>> {
    package subscriptionDataAccessLayer <<Frame>> {
        class SubscriptionDataAccessService <<@Repository>> {
            <<create>> SubscriptionDataAccessService(JpaTemplate jpaTemplate)
            int uploadSubscriptions(String username, List<SubscriptionAction> subscriptions)
            List<String> getSubscriptions(String username)
            List<String> getSubscriptionsSince(String username, LocalDateTime time)
            int addSubscriptions(String username, List<SubscriptionAction> addedSubscriptions)
            int removeSubscriptions(String username, List<SubscriptionAction> removedSubscriptions)
            List<SubscriptionTitles> getTitles(String username)
        }

        interface SubscriptionDao {
            int uploadSubscriptions(String username, List<SubscriptionAction> subscriptions)
            List<String> getSubscriptions(String username)
            List<String> getSubscriptionsSince(String username, LocalDateTime time)
            int addSubscriptions(String username, List<SubscriptionAction> addedSubscriptions)
            int removeSubscriptions(String username, List<SubscriptionAction> removedSubscriptions)
            List<SubscriptionTitles> getTitles(String username)
        }
    }

    package subscriptionService <<Frame>> {
        class SubscriptionService <<@Service>> {
            <<create>> SubscriptionService(SubscriptionDao subscriptionDao)
            int uploadSubscriptions(String username, List<SubscriptionAction> subscriptions)
            List<String> getSubscriptions(String username)
            List<String> getSubscriptionsSince(String username, LocalDateTime time)
            int addSubscriptions(String username, List<SubscriptionAction> addedSubscriptions)
            int removeSubscriptions(String username, List<SubscriptionAction> removedSubscriptions)
            List<SubscriptionTitles> getTitles(String username)
        }
    }

    package subscriptionController <<Frame>> {
        class SubscriptionController <<@Controller>>{
            ' @Autowired
            <<create>> SubscriptionController(SubscriptionService subscriptionService) 
            ' @GetMapping
            ResponseEntity<List<String>> getSubscriptions(String username, String deviceID, String functionJSONP)  
            ' @PutMapping
            ResponseEntity<String> uploadSubscriptions(String username, String deviceID, List<String> subscriptions) 
            ' @PostMapping
            ResponseEntity<SubscriptionDelta> applySubscriptionDelta(String username, String deviceID, SubscriptionDelta delta) 
            ' @GetMapping
            ResponseEntity<SubscriptionDelta> getSubscriptionDelta(String username, String deviceID, long since) 
            ResponseEntity<List<SubscriptionTitles>> getTitles(String username, String deviceID)
        }

        class SubscriptionTitles {
            <<create>> SubscriptionTitles(Subscription subscription, List<EpisodeActionPost> episodeTitles)
            Subscription getSubscription()
            List<EpisodeActionPost> getEpisodesTitles()
        }

        class SubscriptionDelta {
            <<create>> SubscriptionDelta(List<String> add, List<String> remove) 
            List<String> getRemove() 
            LocalDate getTimestamp() 
            List<List<String>> getUpdate_urls() 
        }
    }

}

' Subscription <.. SubscriptionDataAccessService: DB
' SubscriptionAction <.. SubscriptionDataAccessService: DB
SubscriptionService --o SubscriptionController
SubscriptionDao <.. SubscriptionService: <<use>>
SubscriptionDao <|. SubscriptionDataAccessService: <<realize>>

@enduml