Initial commit for Greenlens

services/notificationService.ts

@@ -0,0 +1,43 @@
+import * as Notifications from 'expo-notifications';
+import { Platform } from 'react-native';
+import { Plant } from '../types';
+
+Notifications.setNotificationHandler({
+  handleNotification: async () => ({
+    shouldShowAlert: true,
+    shouldShowBanner: true,
+    shouldShowList: true,
+    shouldPlaySound: true,
+    shouldSetBadge: false,
+  }),
+});
+
+export async function requestPermissions(): Promise<boolean> {
+  const { status: existing } = await Notifications.getPermissionsAsync();
+  if (existing === 'granted') return true;
+
+  const { status } = await Notifications.requestPermissionsAsync();
+  return status === 'granted';
+}
+
+export async function scheduleWateringReminder(plant: Plant): Promise<void> {
+  const intervalDays = plant.careInfo.waterIntervalDays;
+
+  await Notifications.scheduleNotificationAsync({
+    identifier: `water-${plant.id}`,
+    content: {
+      title: 'Watering Reminder 💧',
+      body: `Time to water your ${plant.name}!`,
+      data: { plantId: plant.id },
+    },
+    trigger: {
+      type: Notifications.SchedulableTriggerInputTypes.TIME_INTERVAL,
+      seconds: intervalDays * 24 * 60 * 60,
+      repeats: true,
+    },
+  });
+}
+
+export async function cancelReminder(plantId: string): Promise<void> {
+  await Notifications.cancelScheduledNotificationAsync(`water-${plantId}`);
+}