post hog

frontend/app.json

@@ -122,7 +122,8 @@
           "microphonePermission": "Allow Keepsafe to access your microphone."
         }
       ],
-      "expo-background-task"
+      "expo-background-task",
+      "expo-localization"
     ],
     "experiments": {
       "typedRoutes": true

frontend/app/capture/details.tsx

@@ -10,6 +10,7 @@ import { useUserEntries } from '@/hooks/use-user-entries';
 import { usePrivacySettings } from '@/hooks/use-privacy-settings';
 import { PrivacySettings } from '@/types/privacy';
 import { MediaCapture } from '@/types/media';
+import { posthog } from '@/constants/posthog';
 
 import { moderateScale, verticalScale } from 'react-native-size-matters';
 import * as Crypto from 'expo-crypto';
@@ -215,6 +216,16 @@ export default function DetailsScreen() {
       });
 
       if (result.success) {
+        try {
+          posthog.capture('entry_captured', {
+            type: capture.type,
+            is_private: isPrivate,
+            is_everyone: isEveryone,
+            friends_count: selectedFriends.length
+          });
+        } catch (error) {
+          if (__DEV__) console.warn('Analytics capture failed:', error);
+        }
         toast(result.message, 'success');
         setTimeout(() => {
           router.push('/capture');

frontend/constants/posthog.ts

@@ -0,0 +1,26 @@
+import { PostHog } from 'posthog-react-native';
+
+const apiKey = process.env.EXPO_PUBLIC_POSTHOG_API_KEY;
+const host = process.env.EXPO_PUBLIC_POSTHOG_HOST;
+
+if (!apiKey || !host) {
+  if (__DEV__) {
+    console.warn('PostHog environment variables not configured. Analytics will be disabled.');
+  }
+}
+
+export const posthog = apiKey && host 
+  ? new PostHog(apiKey, { host })
+  : {
+      // Provide a no-op mock for when PostHog is not configured
+      capture: (_event: string, _properties?: object) => Promise.resolve(),
+      identify: (_distinctId: string, _properties?: object) => Promise.resolve(),
+      reset: () => Promise.resolve(),
+      screen: (_screenName: string, _properties?: object) => Promise.resolve(),
+      group: (_groupType: string, _groupKey: string, _properties?: object) => Promise.resolve(),
+      alias: (_alias: string) => Promise.resolve(),
+      reloadFeatureFlags: () => {},
+      isFeatureEnabled: () => false,
+      getFeatureFlag: () => null,
+      getFeatureFlagPayload: () => null,
+    } as unknown as PostHog;

frontend/hooks/use-friends.ts

@@ -6,6 +6,7 @@ import { Database } from '@/types/database';
 import { deviceStorage } from '@/services/device-storage';
 import { FriendService } from '@/services/friend-service';
 import { useAuthContext } from '@/providers/auth-provider';
+import { posthog } from '@/constants/posthog';
 import { FriendWithProfile } from '@/types/friends';
 
 
@@ -161,6 +162,12 @@ export function useFriends(userId?: string): UseFriendsResult {
         status: FRIENDSHIP_STATUS.BLOCKED,
         blocked_by: userId
       });
+      try {
+        // Omitting friendship_id for privacy compliance
+        posthog.capture('friend_blocked', {});
+      } catch (error) {
+        if (__DEV__) console.warn('Analytics capture failed:', error);
+      }
       return { success: true };
     } catch (error) {
       return {

frontend/hooks/use-invite-acceptance.ts

@@ -2,6 +2,7 @@ import { useState, useCallback } from 'react';
 import { useMutation, useQuery } from '@tanstack/react-query';
 import { supabase } from '@/lib/supabase';
 import { TABLES, FRIENDSHIP_STATUS } from '@/constants/supabase';
+import { posthog } from '@/constants/posthog';
 
 export interface InviteData {
   id: string;
@@ -130,6 +131,13 @@ export function useInviteAcceptance(inviteId?: string): UseInviteAcceptanceResul
         userId: userId 
       });
 
+      if (inviteeId && userId) {
+        posthog.capture('invite_accepted', {
+          inviter_id: inviteeId,
+          invitee_id: userId
+        });
+      }
+
       return {
         success: true,
         message: 'Invitation accepted successfully!',

frontend/package.json

@@ -35,6 +35,7 @@
     "axios": "^1.12.2",
     "date-fns": "^4.1.0",
     "expo": "54",
+    "expo-application": "~7.0.8",
     "expo-audio": "~1.0.13",
     "expo-av": "~16.0.7",
     "expo-background-task": "~1.0.8",
@@ -45,15 +46,16 @@
     "expo-contacts": "~15.0.8",
     "expo-crypto": "~15.0.7",
     "expo-dev-client": "~6.0.12",
-    "expo-device": "^8.0.8",
+    "expo-device": "~8.0.10",
     "expo-document-picker": "~14.0.7",
-    "expo-file-system": "~19.0.12",
+    "expo-file-system": "~19.0.21",
     "expo-font": "~14.0.8",
     "expo-haptics": "~15.0.7",
     "expo-image": "~3.0.8",
     "expo-image-picker": "~17.0.8",
     "expo-linear-gradient": "~15.0.7",
     "expo-linking": "~8.0.8",
+    "expo-localization": "~17.0.8",
     "expo-location": "~19.0.7",
     "expo-notifications": "~0.32.11",
     "expo-router": "~6.0.1",
@@ -67,6 +69,7 @@
     "expo-video": "~3.0.11",
     "expo-web-browser": "~15.0.7",
     "lucide-react-native": "^0.475.0",
+    "posthog-react-native": "^4.17.0",
     "react": "19.1.0",
     "react-dom": "19.1.0",
     "react-native": "0.81.4",

frontend/tsconfig.json

@@ -16,9 +16,5 @@
     "expo-env.d.ts",
     "nativewind-env.d.ts"
   ],
-  "exclude": [
-    "node_modules",
-    "**/*.flow.js",
-    "**/*.flow"
-  ]
+  "exclude": ["node_modules", "**/*.flow.js", "**/*.flow"]
 }