77 lines
2.4 KiB
Swift
77 lines
2.4 KiB
Swift
//
|
|
// Copyright 2022 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
import Foundation
|
|
|
|
@_implementationOnly import FirebaseInstallations
|
|
|
|
struct SessionInfo {
|
|
let sessionId: String
|
|
let firstSessionId: String
|
|
let shouldDispatchEvents: Bool
|
|
let sessionIndex: Int32
|
|
|
|
init(sessionId: String, firstSessionId: String, dispatchEvents: Bool, sessionIndex: Int32) {
|
|
self.sessionId = sessionId
|
|
self.firstSessionId = firstSessionId
|
|
shouldDispatchEvents = dispatchEvents
|
|
self.sessionIndex = sessionIndex
|
|
}
|
|
}
|
|
|
|
///
|
|
/// Generator is responsible for:
|
|
/// 1) Generating the Session ID
|
|
/// 2) Persisting and reading the Session ID from the last session
|
|
/// (Maybe) 3) Persisting, reading, and incrementing an increasing index
|
|
///
|
|
class SessionGenerator {
|
|
private var thisSession: SessionInfo?
|
|
|
|
private var firstSessionId = ""
|
|
private var sessionIndex: Int32
|
|
private var collectEvents: Bool
|
|
|
|
init(collectEvents: Bool) {
|
|
// This will be incremented to 0 on the first generation
|
|
sessionIndex = -1
|
|
|
|
self.collectEvents = collectEvents
|
|
}
|
|
|
|
// Generates a new Session ID. If there was already a generated Session ID
|
|
// from the last session during the app's lifecycle, it will also set the last Session ID
|
|
func generateNewSession() -> SessionInfo {
|
|
let newSessionId = UUID().uuidString.replacingOccurrences(of: "-", with: "").lowercased()
|
|
|
|
// If firstSessionId is set, use it. Otherwise set it to the
|
|
// first generated Session ID
|
|
firstSessionId = firstSessionId.isEmpty ? newSessionId : firstSessionId
|
|
|
|
sessionIndex += 1
|
|
|
|
let newSession = SessionInfo(sessionId: newSessionId,
|
|
firstSessionId: firstSessionId,
|
|
dispatchEvents: collectEvents,
|
|
sessionIndex: sessionIndex)
|
|
thisSession = newSession
|
|
return newSession
|
|
}
|
|
|
|
var currentSession: SessionInfo? {
|
|
return thisSession
|
|
}
|
|
}
|