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import Constants from "expo-constants";
import * as Device from "expo-device";
import * as Notifications from "expo-notifications";
import { Platform } from "react-native";
import { apiClient } from "../api/client";
// Configure notification handling behavior
Notifications.setNotificationHandler({
handleNotification: async () => ({
shouldShowAlert: true,
shouldPlaySound: true,
shouldSetBadge: true,
shouldShowBanner: true,
shouldShowList: true,
}),
});
export type NotificationPermissionStatus =
| "granted"
| "denied"
| "undetermined";
/**
* Get current notification permission status
*/
export async function getNotificationPermissionStatus(): Promise<NotificationPermissionStatus> {
const { status } = await Notifications.getPermissionsAsync();
return status;
}
/**
* Request notification permissions from the user
*/
export async function requestNotificationPermissions(): Promise<NotificationPermissionStatus> {
// Check if we're on a physical device (notifications don't work on simulator)
if (!Device.isDevice) {
console.log("Push notifications require a physical device");
return "denied";
}
// Get existing permissions first
const { status: existingStatus } = await Notifications.getPermissionsAsync();
let finalStatus = existingStatus;
// Only ask if permissions have not already been determined
if (existingStatus !== "granted") {
const { status } = await Notifications.requestPermissionsAsync();
finalStatus = status;
}
return finalStatus;
}
/**
* Get the Expo push token for this device
*/
export async function getExpoPushToken(): Promise<string | null> {
if (!Device.isDevice) {
console.log("Push notifications require a physical device");
return null;
}
const { status } = await Notifications.getPermissionsAsync();
if (status !== "granted") {
console.log("Notification permissions not granted");
return null;
}
try {
// Get the project ID from Expo config
const projectId =
Constants.expoConfig?.extra?.eas?.projectId ??
Constants.easConfig?.projectId;
if (!projectId) {
console.error("Project ID not found in Expo config");
return null;
}
const tokenData = await Notifications.getExpoPushTokenAsync({
projectId,
});
return tokenData.data;
} catch (error) {
console.error("Failed to get Expo push token:", error);
return null;
}
}
/**
* Register push token with the backend
*/
export async function registerPushToken(): Promise<boolean> {
const token = await getExpoPushToken();
if (!token) {
console.log("No push token available to register");
return false;
}
try {
await apiClient.post("/parent/push-token", { token });
console.log("Push token registered successfully");
return true;
} catch (error) {
console.error("Failed to register push token:", error);
return false;
}
}
/**
* Remove push token from the backend
*/
export async function unregisterPushToken(): Promise<boolean> {
const token = await getExpoPushToken();
if (!token) {
console.log("No push token available to unregister");
return false;
}
try {
await apiClient.delete("/parent/push-token", { token });
console.log("Push token unregistered successfully");
return true;
} catch (error) {
console.error("Failed to unregister push token:", error);
return false;
}
}
/**
* Set up Android notification channel for alerts
*/
export async function setupNotificationChannels(): Promise<void> {
if (Platform.OS === "android") {
await Notifications.setNotificationChannelAsync("default", {
name: "Default",
importance: Notifications.AndroidImportance.DEFAULT,
vibrationPattern: [0, 250, 250, 250],
lightColor: "#FF231F7C",
});
await Notifications.setNotificationChannelAsync("alerts", {
name: "Safety Alerts",
description: "Important safety alerts about your child's device",
importance: Notifications.AndroidImportance.HIGH,
vibrationPattern: [0, 500, 250, 500],
lightColor: "#FF0000",
sound: "default",
enableVibrate: true,
enableLights: true,
});
}
}
/**
* Add a listener for received notifications (when app is foregrounded)
*/
export function addNotificationReceivedListener(
callback: (notification: Notifications.Notification) => void
): Notifications.EventSubscription {
return Notifications.addNotificationReceivedListener(callback);
}
/**
* Add a listener for notification responses (when user taps notification)
*/
export function addNotificationResponseListener(
callback: (response: Notifications.NotificationResponse) => void
): Notifications.EventSubscription {
return Notifications.addNotificationResponseReceivedListener(callback);
}
/**
* Get the last notification response (for handling cold start from notification)
*/
export async function getLastNotificationResponse(): Promise<Notifications.NotificationResponse | null> {
return Notifications.getLastNotificationResponseAsync();
}
/**
* Initialize notifications: setup channels, request permissions, and register token
* Call this when the user is authenticated
*/
export async function initializeNotifications(): Promise<{
permissionStatus: NotificationPermissionStatus;
tokenRegistered: boolean;
}> {
// Setup Android channels first
await setupNotificationChannels();
// Request permissions
const permissionStatus = await requestNotificationPermissions();
if (permissionStatus !== "granted") {
return { permissionStatus, tokenRegistered: false };
}
// Register token with backend
const tokenRegistered = await registerPushToken();
return { permissionStatus, tokenRegistered };
}
|