/
EventsQueue.swift
104 lines (91 loc) · 2.38 KB
/
EventsQueue.swift
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//
// File.swift
//
//
// Created by brian on 8/16/21.
//
import UIKit
import Combine
/// Sends n analytical events to the Superwall servers every 20 seconds, where n is defined by `maxEventCount`.
///
/// **Note**: this currently has a limit of 500 events per flush.
actor EventsQueue {
private let maxEventCount = 50
private var elements: [JSON] = []
private var timer: Timer?
private unowned let network: Network
private unowned let configManager: ConfigManager
@MainActor
private var resignActiveObserver: AnyCancellable?
deinit {
timer?.invalidate()
timer = nil
}
init(
network: Network,
configManager: ConfigManager
) {
self.network = network
self.configManager = configManager
Task { [weak self] in
await self?.setupTimer()
await self?.addObserver()
}
}
private func setupTimer() {
let timeInterval = configManager.options.networkEnvironment == .release ? 20.0 : 1.0
let timer = Timer(
timeInterval: timeInterval,
repeats: true
) { [weak self] _ in
guard let self = self else {
return
}
Task {
await self.flushInternal()
}
}
self.timer = timer
RunLoop.main.add(timer, forMode: .default)
}
@MainActor
private func addObserver() async {
resignActiveObserver = NotificationCenter.default
.publisher(for: UIApplication.willResignActiveNotification)
.sink { [weak self] _ in
Task {
await self?.flushInternal()
}
}
}
func enqueue(event: JSON) {
elements.append(event)
}
private func externalDataCollectionAllowed(from event: Trackable) -> Bool {
if Superwall.shared.options.isExternalDataCollectionEnabled {
return true
}
if event is InternalSuperwallEvent.TriggerFire
|| event is InternalSuperwallEvent.Attributes
|| event is UserInitiatedEvent.Track {
return false
}
return true
}
func flushInternal(depth: Int = 10) {
var eventsToSend: [JSON] = []
var i = 0
while i < maxEventCount && !elements.isEmpty {
eventsToSend.append(elements.removeFirst())
i += 1
}
if !eventsToSend.isEmpty {
// Send to network
let events = EventsRequest(events: eventsToSend)
Task { await network.sendEvents(events: events) }
}
if !elements.isEmpty && depth > 0 {
return flushInternal(depth: depth - 1)
}
}
}