AnalyticsEvent.swift

public enum AnalyticsEvent: AnalyticsEventProtocol {
    case userLoggedIn
    case userLoggedOut
    case productSelected(productId: Int)

    var name: String { 
        switch self {
        case .userLoggedIn:     return "User Logged In"
        case .userLoggedOut:    return "User Logged Out"
        case .productSelected:  return "Product Selected"
        }
    }
    
    var parameters: [String: Any]? {
        switch self {
        case .userLoggedIn:                 return nil
        case .userLoggedOut:                return nil
        case .productSelected(id: let id):  return ["product_id": productId]
        }
    }

    /// Add our own implementation of `isTrackedOnAnalyticsServices` instead of relying
    /// on the default one which doens't send anything anywhere
    var isTrackedOnAnalyticsServices: [AnalyticsServiceProtocol.Type] { 
        switch self {
        /// will be sent on 2 services
        case .userLoggedIn:     return [FacebookAnalyticsService.self, FabricAnalyticsService.self]
            
        /// will not be sent anywhere
        case .userLoggedOut:    return [] 
            
        /// will be sent on only one service
        case .productSelected:  return [FacebookAnalyticsService.self]
        }
    }
}