TrackingProvider.swift

class TrackingClient: TrackingClientType {
    var providers = [TrackingProviderType]()

    func add(provider: TrackingProviderType) {
        providers.append(provider)
    }

    func track(event: TrackingEventType) {
        for provider in providers {
            provider.track(event: event)
        }
    }
  
    func associate(with user: User) {
        for provider in providers {
            provider.associate(with: user)
        }
    }

    func disassociateUser() {
        for provider in providers {
            provider.disassociateUser()
        }
    }

    func setup() {
        for provider in providers {
            provider.setup()
        }
    }
}