Analytics

AnalyticsEvent+Search.swift

extension AnalyticsEvent {
  static func searchForUser(with query: String) -> AnalyticsEvent {
    return AnalyticsEvent(name: "Search for user", attributes: [.query: query])
  }
}

AnalyticsEvent.swift

public struct AnalyticsEvent {
  typealias Attributes = [Key: Any]
  let name: String
  let attributes: Attributes
}

public extension AnalyticsEvent {
  enum Key: String, CaseIterable {
    case query
    case result
    case duration
  }
}

AnalyticsFacade.swift

public class AnalyticsFacade {
  // MARK: - Static
  
  public static let `default` = AnalyticsFacade()
  
  // MARK: - Instance variables
  
  private var services: [AnalyticsService]
  
  // MARK: - Public

  public func log(_ event: AnalyticsEvent) {
    // Can be on the separate queue
    for service in services {
      service.log(event)
  }
    
  func register(_ service: AnalyticsService) {
    services.append(service)
  }
}
  

AnalyticsService.swift

public protocol AnalyticsService {
  func log(_ event: AnalyticsEvent)
}