TheNoiseClock/TheNoiseClock/Features/Alarms/State/AlarmViewModel.swift

292 lines
10 KiB
Swift

//
// AlarmViewModel.swift
// TheNoiseClock
//
// Created by Matt Bruce on 9/7/25.
//
import Foundation
import Observation
import UserNotifications
import AudioPlaybackKit
/// ViewModel for alarm management
@Observable
class AlarmViewModel {
// MARK: - Properties
private let alarmService: AlarmService
private let notificationService: NotificationService
private let alarmSoundService = AlarmSoundService.shared
private let soundPlayer = SoundPlayer.shared
var activeAlarm: Alarm?
var alarms: [Alarm] {
alarmService.alarms
}
var systemSounds: [String] {
AppConstants.SystemSounds.availableSounds
}
// MARK: - Initialization
init(alarmService: AlarmService = AlarmService(),
notificationService: NotificationService = NotificationService()) {
self.alarmService = alarmService
self.notificationService = notificationService
// Register alarm service with notification delegate for snooze handling
NotificationDelegate.shared.setAlarmService(alarmService)
}
// MARK: - Public Interface
func addAlarm(_ alarm: Alarm) async {
alarmService.addAlarm(alarm)
// Schedule notification if alarm is enabled
if alarm.isEnabled {
await notificationService.scheduleAlarmNotification(
id: alarm.id.uuidString,
title: alarm.label,
body: alarm.notificationMessage,
soundName: alarm.soundName,
date: alarm.time
)
requestKeepAwakePromptIfNeeded()
}
}
func updateAlarm(_ alarm: Alarm) async {
alarmService.updateAlarm(alarm)
// Reschedule notification
if alarm.isEnabled {
await notificationService.scheduleAlarmNotification(
id: alarm.id.uuidString,
title: alarm.label,
body: alarm.notificationMessage,
soundName: alarm.soundName,
date: alarm.time
)
requestKeepAwakePromptIfNeeded()
} else {
notificationService.cancelNotification(id: alarm.id.uuidString)
}
}
func deleteAlarm(id: UUID) async {
// Cancel notification first
notificationService.cancelNotification(id: id.uuidString)
// Then delete from storage
alarmService.deleteAlarm(id: id)
}
func toggleAlarm(id: UUID) async {
guard var alarm = alarmService.getAlarm(id: id) else { return }
alarm.isEnabled.toggle()
alarmService.updateAlarm(alarm)
// Schedule or cancel notification based on new state
if alarm.isEnabled {
await notificationService.scheduleAlarmNotification(
id: alarm.id.uuidString,
title: alarm.label,
body: alarm.notificationMessage,
soundName: alarm.soundName,
date: alarm.time
)
requestKeepAwakePromptIfNeeded()
} else {
notificationService.cancelNotification(id: id.uuidString)
}
}
func getAlarm(id: UUID) -> Alarm? {
return alarmService.getAlarm(id: id)
}
func createNewAlarm(
time: Date,
soundName: String = AppConstants.SystemSounds.defaultSound,
label: String = "Alarm",
notificationMessage: String = "Your alarm is ringing",
snoozeDuration: Int = 9,
isVibrationEnabled: Bool = true,
isLightFlashEnabled: Bool = false,
volume: Float = 1.0
) -> Alarm {
return Alarm(
id: UUID(),
time: time,
isEnabled: true,
soundName: soundName,
label: label,
notificationMessage: notificationMessage,
snoozeDuration: snoozeDuration,
isVibrationEnabled: isVibrationEnabled,
isLightFlashEnabled: isLightFlashEnabled,
volume: volume
)
}
func requestNotificationPermissions() async -> Bool {
return await notificationService.requestPermissions()
}
func requestKeepAwakePromptIfNeeded() {
guard !isKeepAwakeEnabled() else { return }
NotificationCenter.default.post(name: .keepAwakePromptRequested, object: nil)
}
// MARK: - Active Alarm Handling
func handleAlarmNotification(userInfo: [AnyHashable: Any]?) {
guard let userInfo else { return }
if let alarm = resolveAlarm(from: userInfo) {
startActiveAlarm(alarm)
}
}
@MainActor
func stopActiveAlarm() {
soundPlayer.stopSound()
activeAlarm = nil
}
@MainActor
func snoozeActiveAlarm() {
guard let alarm = activeAlarm else { return }
scheduleSnoozeNotification(for: alarm)
stopActiveAlarm()
}
@MainActor
private func startActiveAlarm(_ alarm: Alarm) {
if activeAlarm?.id == alarm.id {
return
}
activeAlarm = alarm
playAlarmSound(for: alarm)
}
private func playAlarmSound(for alarm: Alarm) {
let resolvedSound = alarmSoundService.getAlarmSound(fileName: alarm.soundName)
?? alarmSoundService.getDefaultAlarmSound()
guard let sound = resolvedSound else { return }
soundPlayer.playSound(sound, volume: alarm.volume)
}
private func isKeepAwakeEnabled() -> Bool {
guard let data = UserDefaults.standard.data(forKey: ClockStyle.appStorageKey),
let style = try? JSONDecoder().decode(ClockStyle.self, from: data) else {
return ClockStyle().keepAwake
}
return style.keepAwake
}
private func scheduleSnoozeNotification(for alarm: Alarm) {
let snoozeTime = Date().addingTimeInterval(TimeInterval(alarm.snoozeDuration * 60))
let snoozeAlarm = Alarm(
id: UUID(),
time: snoozeTime,
isEnabled: true,
soundName: alarm.soundName,
label: "\(alarm.label) (Snoozed)",
notificationMessage: "Snoozed: \(alarm.notificationMessage)",
snoozeDuration: alarm.snoozeDuration,
isVibrationEnabled: alarm.isVibrationEnabled,
isLightFlashEnabled: alarm.isLightFlashEnabled,
volume: alarm.volume
)
let content = UNMutableNotificationContent()
content.title = snoozeAlarm.label
content.body = snoozeAlarm.notificationMessage
if snoozeAlarm.soundName == "default" {
content.sound = .default
} else {
content.sound = UNNotificationSound(named: UNNotificationSoundName(rawValue: snoozeAlarm.soundName))
}
content.categoryIdentifier = AlarmNotificationConstants.categoryIdentifier
content.userInfo = [
AlarmNotificationKeys.alarmId: snoozeAlarm.id.uuidString,
AlarmNotificationKeys.soundName: snoozeAlarm.soundName,
AlarmNotificationKeys.isSnooze: true,
AlarmNotificationKeys.originalAlarmId: alarm.id.uuidString,
AlarmNotificationKeys.label: snoozeAlarm.label,
AlarmNotificationKeys.notificationMessage: snoozeAlarm.notificationMessage,
AlarmNotificationKeys.snoozeDuration: snoozeAlarm.snoozeDuration,
AlarmNotificationKeys.isVibrationEnabled: snoozeAlarm.isVibrationEnabled,
AlarmNotificationKeys.volume: snoozeAlarm.volume
]
let trigger = UNTimeIntervalNotificationTrigger(
timeInterval: snoozeAlarm.time.timeIntervalSinceNow,
repeats: false
)
let request = UNNotificationRequest(
identifier: snoozeAlarm.id.uuidString,
content: content,
trigger: trigger
)
Task {
do {
try await UNUserNotificationCenter.current().add(request)
} catch {
// Intentionally silent; notification system logs errors
}
}
}
private func resolveAlarm(from userInfo: [AnyHashable: Any]) -> Alarm? {
if let alarmIdString = userInfo[AlarmNotificationKeys.alarmId] as? String,
let alarmId = UUID(uuidString: alarmIdString),
let alarm = alarmService.getAlarm(id: alarmId) {
return alarm
}
let title = (userInfo[AlarmNotificationKeys.label] as? String) ?? (userInfo[AlarmNotificationKeys.title] as? String)
let body = (userInfo[AlarmNotificationKeys.notificationMessage] as? String) ?? (userInfo[AlarmNotificationKeys.body] as? String)
let soundName = (userInfo[AlarmNotificationKeys.soundName] as? String) ?? AppConstants.SystemSounds.defaultSound
let snoozeDuration = intValue(from: userInfo[AlarmNotificationKeys.snoozeDuration]) ?? 9
let isVibrationEnabled = boolValue(from: userInfo[AlarmNotificationKeys.isVibrationEnabled]) ?? true
let volume = floatValue(from: userInfo[AlarmNotificationKeys.volume]) ?? 1.0
return Alarm(
time: Date(),
isEnabled: true,
soundName: soundName,
label: title ?? "Alarm",
notificationMessage: body ?? "Your alarm is ringing",
snoozeDuration: snoozeDuration,
isVibrationEnabled: isVibrationEnabled,
isLightFlashEnabled: false,
volume: volume
)
}
private func intValue(from value: Any?) -> Int? {
if let intValue = value as? Int { return intValue }
if let number = value as? NSNumber { return number.intValue }
return nil
}
private func floatValue(from value: Any?) -> Float? {
if let floatValue = value as? Float { return floatValue }
if let doubleValue = value as? Double { return Float(doubleValue) }
if let number = value as? NSNumber { return number.floatValue }
return nil
}
private func boolValue(from value: Any?) -> Bool? {
if let boolValue = value as? Bool { return boolValue }
if let number = value as? NSNumber { return number.boolValue }
return nil
}
}