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App.js
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App.js
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import React, { useReducer, useEffect, useRef } from "react";
import "expo-dev-client";
import { AppState, Platform, BackHandler, Alert, Linking, useColorScheme } from "react-native";
import * as Device from "expo-device";
import {
Provider as PaperProvider,
MD3LightTheme as DefaultLightTheme,
MD3DarkTheme as DefaultDarkTheme,
} from "react-native-paper";
import { FontAwesome5 } from "@expo/vector-icons";
import { RootSiblingParent } from "react-native-root-siblings";
import * as TaskManager from "expo-task-manager";
import * as Notifications from "expo-notifications";
import * as SplashScreen from "expo-splash-screen";
import uuid from "react-native-uuid";
import { NavigationContainer } from "@react-navigation/native";
import AsyncStorage from "@react-native-async-storage/async-storage";
import { StatusBar } from "expo-status-bar";
import { initialState, reducer } from "./reducers/app";
import {
setDeviceKey,
setAppReadyState,
setUserData,
setExpoPushToken,
setNativePushToken,
pushRecieved,
setPushResponse,
} from "./reducers/app";
import AuthView from "./views/AuthView";
import AppTabView from "./views/AppTabView";
import NotificationPopup from "./components/NotificationPopup";
import PushMeSDK, { Consts } from "@pushme-tgxn/pushmesdk";
import { AppReducer, BACKEND_URL } from "./const";
import apiService from "./service/api";
// background notificaiton listener
const BACKGROUND_NOTIFICATION_TASK = "BACKGROUND-NOTIFICATION-TASK";
TaskManager.defineTask(BACKGROUND_NOTIFICATION_TASK, ({ data, error, executionInfo }) => {
console.debug("Received a notification in the background!", data);
// Do something with the notification data
});
Notifications.registerTaskAsync(BACKGROUND_NOTIFICATION_TASK);
Notifications.setNotificationHandler({
handleNotification: async () => ({
shouldShowAlert: true,
shouldPlaySound: false,
shouldSetBadge: false,
}),
});
SplashScreen.preventAutoHideAsync();
const App = () => {
const appState = useRef(AppState.currentState);
const scheme = useColorScheme();
const [state, dispatch] = useReducer(reducer, initialState);
let theme = DefaultLightTheme;
if (scheme === "dark") {
theme = DefaultDarkTheme;
}
// adpations
theme = {
...theme,
mode: "exact",
backdrop: true,
roundness: 1,
colors: {
...theme.colors,
primary: "#a845ff",
accent: "#933ce0",
},
};
const startState = useRef("Auth");
const notificationListener = useRef();
const responseListener = useRef();
// register app for notifications (get tokens)
const registerForPushNotificationsAsync = async () => {
let token, nativeToken;
if (Platform.OS === "android") {
Notifications.setNotificationChannelAsync("default", {
name: "default",
importance: Notifications.AndroidImportance.MAX,
vibrationPattern: [0, 250, 250, 250],
lightColor: "#FF231F7C",
});
}
if (Device.isDevice) {
const { status: existingStatus } = await Notifications.getPermissionsAsync();
let finalStatus = existingStatus;
if (existingStatus !== "granted") {
const { status } = await Notifications.requestPermissionsAsync();
finalStatus = status;
}
const openAppSettings = () => {
Linking.openSettings();
};
if (finalStatus !== "granted") {
Alert.alert(
`Notification Permissions are not granted!`,
"Please enable notifications in the app settings.",
[
{ text: "Exit App", onPress: () => BackHandler.exitApp() },
{ text: "Open App Settings", onPress: openAppSettings },
],
);
return [null, null];
}
token = await Notifications.getExpoPushTokenAsync();
nativeToken = await Notifications.getDevicePushTokenAsync();
} else {
alert("Must use physical device for Push Notifications");
}
return [token, nativeToken];
};
// register notification categories from client-side
const registerNotificationCategories = async () => {
for (const index in Consts.PushDefinition) {
const notificationCategory = Consts.PushDefinition[index];
if (notificationCategory.actions) {
console.debug("registering notification actions", index, notificationCategory);
// `actions` docs: https://docs.expo.dev/versions/latest/sdk/notifications/#arguments-21
await Notifications.setNotificationCategoryAsync(
index,
notificationCategory.actions.map((action) => {
return {
buttonTitle: action.title,
identifier: action.identifier,
options: {
opensAppToForeground: true, // force app to foreground when action is pressed
...action.options,
},
textInput: action.textInput,
};
}),
);
}
}
};
const getAppPushTokens = async () => {
// get application push tokens, and register notification categories
try {
let [expoToken, nativeToken] = await registerForPushNotificationsAsync();
if (expoToken) {
dispatch(setExpoPushToken(expoToken));
}
if (nativeToken) {
dispatch(setNativePushToken(nativeToken));
}
await registerNotificationCategories();
} catch (error) {
console.error("error setting app up", error);
// alert("error setting app up: " + error.toString());
}
};
// listen for app state changes to detect foreground/background
useEffect(() => {
const subscription = AppState.addEventListener("change", (nextAppState) => {
if (appState.current.match(/inactive|background/) && nextAppState === "active") {
console.log("App has come to the foreground!");
getAppPushTokens();
}
appState.current = nextAppState;
console.log("AppState Changed", appState.current);
});
return () => {
subscription.remove();
};
}, []);
const initializeDeviceKey = async (state, dispatch) => {
let deviceKey;
try {
if (state.deviceKey) {
console.debug("using deviceKey from state", state.deviceKey);
deviceKey = state.deviceKey;
} else {
const existingDeviceKey = await AsyncStorage.getItem("deviceKey");
if (existingDeviceKey !== null) {
deviceKey = existingDeviceKey;
console.debug("loaded deviceKey", deviceKey);
} else {
deviceKey = uuid.v4();
await AsyncStorage.setItem("deviceKey", deviceKey);
console.debug("generated deviceKey", deviceKey);
}
dispatch(setDeviceKey(deviceKey));
}
} catch (e) {
console.warn(e);
return null;
}
};
const initializeBackendUrl = async () => {
try {
const serializedBackendUrl = await AsyncStorage.getItem("backendUrl");
if (serializedBackendUrl !== null) {
apiService.setBackendUrl(serializedBackendUrl);
} else {
apiService.setBackendUrl(BACKEND_URL);
}
} catch (e) {
console.warn(e);
}
};
const lastNotificationResponse = Notifications.useLastNotificationResponse();
const recievedIds = [];
const responseRecieved = (response) => {
console.log("addNotificationResponseReceivedListener", JSON.stringify(response, null, 4));
if (recievedIds.includes(response.notification.request.identifier)) {
console.log("already recieved this response");
return;
}
recievedIds.push(response.notification.request.identifier);
// get the notification response data
// TODO define this payload format
const responseData = {
pushIdent: response.notification.request.content.data.pushIdent,
pushId: response.notification.request.content.data.pushId,
actionIdentifier: response.actionIdentifier,
categoryIdentifier: response.notification.request.content.categoryIdentifier,
responseText: null,
};
// attach user text is defined
if (response.userText) {
responseData.responseText = response.userText;
}
const foundNotificationCategory = apiService.getNotificationCategory(responseData.categoryIdentifier);
// send non-default responses if enabled for this type of notification
if (response.actionIdentifier == Notifications.DEFAULT_ACTION_IDENTIFIER) {
if (foundNotificationCategory && foundNotificationCategory.sendDefaultAction) {
dispatch(setPushResponse(responseData));
}
} else {
dispatch(setPushResponse(responseData));
}
// perform actions based on category
if (
responseData.categoryIdentifier == "button.open_link" &&
response?.notification?.request?.content?.data?.linkUrl
) {
console.log("open link", response.notification.request.content.data.linkUrl);
Linking.openURL(response.notification.request.content.data.linkUrl);
}
// dismiss the notificaqtion when it's tapped
Notifications.dismissNotificationAsync(response.notification.request.identifier);
};
useEffect(() => {
console.log("action", Notifications);
if (lastNotificationResponse) {
responseRecieved(lastNotificationResponse);
}
}, [lastNotificationResponse]);
useEffect(() => {
async function prepare() {
// generate or load a unique device key, and save it.
await initializeDeviceKey(state, dispatch);
// attempt to load backend URL
await initializeBackendUrl();
// attempt to load user
let loggedInUser;
try {
const serializedUserData = await AsyncStorage.getItem("userData");
if (serializedUserData !== null) {
const userData = JSON.parse(serializedUserData);
console.debug("loaded serializedUserData", userData.id, userData.token);
if (userData) {
// test access token
apiService.setAccessToken(userData.token);
const currentUser = await apiService.user.getCurrentUser();
console.debug("currentUser", currentUser, userData);
if (currentUser && currentUser.user.id == userData.id) {
loggedInUser = userData;
} else {
console.log("not a valid token", currentUser, userData);
}
} else {
console.log("no valid userData", userData);
}
}
} catch (e) {
// console.warn("error attempting to login user from saved token", e);
} finally {
if (loggedInUser) {
// only if a valid token was found
dispatch(setUserData(loggedInUser));
startState.current = "AppView";
} else {
startState.current = "Auth";
}
dispatch(setAppReadyState(true));
}
await SplashScreen.hideAsync();
}
// load user data, and app state
prepare();
// kick off application push tokens, and register notification categories on app start
getAppPushTokens();
// notification recieved, append to local array
notificationListener.current = Notifications.addNotificationReceivedListener((notification) => {
console.log("addNotificationReceivedListener", notification);
dispatch(pushRecieved(notification));
});
// notification response recieved
responseListener.current = Notifications.addNotificationResponseReceivedListener(responseRecieved);
return () => {
Notifications.removeNotificationSubscription(notificationListener.current);
Notifications.removeNotificationSubscription(responseListener.current);
};
}, []);
if (!state.appIsReady) {
return null;
}
return (
<AppReducer.Provider
value={{
state,
dispatch,
}}
>
<RootSiblingParent>
<PaperProvider
settings={{
icon: (props) => <FontAwesome5 style={{ textAlign: "center" }} {...props} />,
}}
theme={theme}
>
<NavigationContainer theme={theme}>
<NotificationPopup />
<StatusBar
backgroundColor={theme.colors.background}
style={scheme === "dark" ? "light" : "dark"}
/>
{state.user && <AppTabView />}
{!state.user && <AuthView />}
</NavigationContainer>
</PaperProvider>
</RootSiblingParent>
</AppReducer.Provider>
);
};
export default App;