470 lines
14 KiB
TypeScript
470 lines
14 KiB
TypeScript
import React, { useState, useEffect, useCallback } from 'react';
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import { View, Text, TouchableOpacity, FlatList, StyleSheet, ActivityIndicator, Alert, Animated, Dimensions, Modal } from 'react-native';
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import { Ionicons } from '@expo/vector-icons';
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import { useFocusEffect } from '@react-navigation/native';
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import { getEmails, getScannedEmails, getUserInfo, deleteEmail } from '../api/qrCodeAPI';
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import { fetchAuthSession } from 'aws-amplify/auth';
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import { Buffer } from 'buffer';
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import ScannedDataBox from '../components/ScannedDataBox';
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const { width: screenWidth, height: screenHeight } = Dimensions.get('window');
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const EmailScreen: React.FC = () => {
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const [selectedMessage, setSelectedMessage] = useState(null);
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const [emailData, setEmailData] = useState(null);
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const [loading, setLoading] = useState(true);
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const [rescanLoading, setRescanLoading] = useState(false);
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const [error, setError] = useState(null);
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const [userEmail, setUserEmail] = useState('');
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const [isModalVisible, setIsModalVisible] = useState(false);
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const [selectedQrCodeId, setSelectedQrCodeId] = useState(null);
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const [isDeleteModalVisible, setIsDeleteModalVisible] = useState(false);
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const [messageToDelete, setMessageToDelete] = useState(null);
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const [emptyMessage, setEmptyMessage] = useState('');
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const [bannerOpacity] = useState(new Animated.Value(0));
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useEffect(() => {
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fetchUserEmail();
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}, []);
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const fetchUserEmail = async () => {
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try {
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const userInfo = await getUserInfo();
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if (userInfo && userInfo.email) {
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setUserEmail(userInfo.email);
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if (userInfo.email.endsWith('@gmail.com')) {
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startInboxScanning();
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} else {
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setEmptyMessage('Please login using a Gmail account to view Emails');
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setLoading(false);
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}
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} else {
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setEmptyMessage('Please login using a Gmail account to view Emails');
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setLoading(false);
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}
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} catch (error) {
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setEmptyMessage('Please login using a Gmail account to view Emails');
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setLoading(false);
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}
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};
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const startInboxScanning = async () => {
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setRescanLoading(true);
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showBanner(); // Show the scanning banner
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try {
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const { tokens } = await fetchAuthSession();
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const idToken = tokens.idToken.toString();
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const parts = idToken.split('.');
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const payload = parts[1];
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const decodedPayload = Buffer.from(payload, 'base64').toString('utf8');
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const parsedPayload = JSON.parse(decodedPayload);
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const googleAccessToken = parsedPayload["custom:access_token"];
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const googleRefreshToken = parsedPayload["custom:refresh_token"];
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if (googleAccessToken && googleRefreshToken) {
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await getEmails(googleAccessToken, googleRefreshToken);
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setRescanLoading(false);
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} else {
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setError('Google access token or refresh token missing.');
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setRescanLoading(false);
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}
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} catch (error) {
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setError('Error rescanning inbox.');
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setRescanLoading(false);
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}
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};
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const startPollingForScannedEmails = useCallback(() => {
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const pollingInterval = setInterval(async () => {
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try {
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const scannedEmails = await getScannedEmails();
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if (scannedEmails && scannedEmails.messages && scannedEmails.messages.length > 0) {
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setEmailData((prevEmailData) => {
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const selectedMessageExists = prevEmailData?.messages.some(
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(message) => message.messageId === selectedMessage?.messageId
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);
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if (selectedMessageExists) {
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return {
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...scannedEmails,
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messages: scannedEmails.messages.map((message) => ({
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...message,
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isSelected: message.messageId === selectedMessage?.messageId,
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})),
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};
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} else {
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setSelectedMessage(null);
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return scannedEmails;
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}
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});
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} else {
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setEmptyMessage('No Emails with QR Code');
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}
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setLoading(false);
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} catch (error) {
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setEmptyMessage('No Emails with QR Code');
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setLoading(false);
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}
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}, 10000);
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return () => clearInterval(pollingInterval);
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}, [selectedMessage]);
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const handleSelectMessage = (message) => {
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setSelectedMessage(selectedMessage === message ? null : message);
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};
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const refreshScannedEmails = async () => {
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try {
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const scannedEmails = await getScannedEmails();
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setEmailData(scannedEmails);
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} catch (error) {
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setError('Error refreshing emails.');
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}
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};
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useFocusEffect(
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useCallback(() => {
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const stopPolling = startPollingForScannedEmails();
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return () => {
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stopPolling();
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};
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}, [startPollingForScannedEmails])
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);
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const handleUrlClick = (id) => {
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setSelectedQrCodeId(id);
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setIsModalVisible(true);
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};
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const handleDeleteEmail = async (messageId: string) => {
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try {
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await deleteEmail(messageId);
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setEmailData((prevEmailData) => {
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const updatedMessages = prevEmailData.messages.filter((message) => message.messageId !== messageId);
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if (updatedMessages.length === 0) {
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setEmptyMessage('No Emails with QR Code');
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}
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return {
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...prevEmailData,
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messages: updatedMessages,
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};
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});
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} catch (error) {
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Alert.alert('Error', 'Failed to delete email. Please try again.');
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}
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};
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const handleDeletePress = (messageId: string) => {
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setMessageToDelete(messageId);
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setIsDeleteModalVisible(true);
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};
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const confirmDelete = async () => {
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if (messageToDelete) {
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await handleDeleteEmail(messageToDelete);
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setIsDeleteModalVisible(false);
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setMessageToDelete(null);
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}
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};
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const showBanner = () => {
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Animated.timing(bannerOpacity, {
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toValue: 1,
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duration: 500,
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useNativeDriver: true,
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}).start(() => {
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setTimeout(() => {
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Animated.timing(bannerOpacity, {
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toValue: 0,
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duration: 500,
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useNativeDriver: true,
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}).start();
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}, 3000);
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});
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};
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return (
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<View style={styles.container}>
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{/* Header with Email and Refresh Button */}
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<View style={styles.headerContainer}>
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<Text style={styles.emailHeader}>Email: {userEmail}</Text>
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<TouchableOpacity onPress={refreshScannedEmails} style={styles.refreshButton}>
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<Ionicons name="refresh" size={24} color="#ff69b4" />
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</TouchableOpacity>
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</View>
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{/* Loading and Empty Message */}
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{loading && (
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<View style={styles.loadingContainer}>
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<ActivityIndicator size="large" color="#ff69b4" />
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<Text style={{ color: '#ff69b4' }}>Fetching emails...</Text>
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</View>
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)}
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{!loading && emptyMessage && (
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<View style={styles.errorContainer}>
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<Text style={styles.errorText}>{emptyMessage}</Text>
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</View>
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)}
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{/* Email Data */}
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{emailData && (
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<FlatList
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data={emailData.messages}
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keyExtractor={(item) => item.messageId}
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renderItem={({ item }) => (
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<TouchableOpacity onPress={() => handleSelectMessage(item)} style={styles.messageContainer}>
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<Text style={styles.subject}>{item.subject}</Text>
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<Text style={styles.date}>{item.date}</Text>
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{selectedMessage?.messageId === item.messageId && (
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<View style={styles.emailListContainer}>
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<Text style={styles.qrCodeHeader}>Decoded QR Codes:</Text>
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{item.decodedContentsDetails?.map((details, index) => (
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<View key={index} style={styles.qrCodeContainer}>
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<TouchableOpacity onPress={() => handleUrlClick(details.data.id)}>
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<Text style={styles.qrCodeLink}>{details.data.contents}</Text>
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</TouchableOpacity>
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</View>
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))}
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<View style={styles.dividerHorizontal} />
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<TouchableOpacity onPress={() => handleDeletePress(item.messageId)} style={styles.deleteButtonContainer}>
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<Text style={styles.deleteButtonText}>Delete this entry</Text>
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<Ionicons name="trash-bin" size={24} color="#ff69b4" />
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</TouchableOpacity>
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</View>
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)}
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</TouchableOpacity>
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)}
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/>
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)}
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{/* Banner when scanning inbox */}
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<Animated.View style={[styles.banner, { opacity: bannerOpacity }]} pointerEvents="none">
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<Text style={styles.bannerText}>Scanning emails in the background. This may take a while...</Text>
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</Animated.View>
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{/* Modal for ScannedDataBox */}
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<Modal
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visible={isModalVisible}
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transparent={true}
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animationType="slide"
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onRequestClose={() => setIsModalVisible(false)}
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>
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<TouchableOpacity
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style={styles.modalOverlay}
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activeOpacity={1}
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onPressOut={() => setIsModalVisible(false)}
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>
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<View style={styles.modalContainer}>
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<ScannedDataBox qrCodeId={selectedQrCodeId} clearScanData={() => setIsModalVisible(false)} />
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</View>
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</TouchableOpacity>
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</Modal>
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{/* Modal to prompt for deleting */}
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<Modal
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transparent={true}
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visible={isDeleteModalVisible}
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animationType="fade"
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onRequestClose={() => setIsDeleteModalVisible(false)}
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>
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<View style={styles.modalOverlay}>
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<View style={styles.modalContainer}>
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<Text style={styles.modalTitle}>Are you sure?</Text>
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<Text style={styles.modalText}>This will only delete the entry on the app and not the actual email.</Text>
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<View style={styles.modalButtons}>
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<TouchableOpacity
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style={styles.modalButton}
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onPress={confirmDelete}
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>
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<Text style={styles.modalButtonText}>Yes, Delete</Text>
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</TouchableOpacity>
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<TouchableOpacity
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style={styles.modalButton}
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onPress={() => setIsDeleteModalVisible(false)}
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>
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<Text style={[styles.modalButtonText, { color: '#ff69b4' }]}>No, Keep It</Text>
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</TouchableOpacity>
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</View>
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</View>
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</View>
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</Modal>
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</View>
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);
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};
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const styles = StyleSheet.create({
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banner: {
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position: 'absolute',
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top: screenHeight * 0.50,
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left: screenWidth * 0.1,
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right: screenWidth * 0.1,
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backgroundColor: '#ff69b4',
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paddingVertical: screenHeight * 0.02,
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paddingHorizontal: screenWidth * 0.05,
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borderRadius: screenWidth * 0.05,
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alignItems: 'center',
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justifyContent: 'center',
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zIndex: 10,
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},
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bannerText: {
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color: '#fff',
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fontWeight: 'bold',
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textAlign: 'center',
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fontSize: screenWidth * 0.04,
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},
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container: {
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flex: 1,
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backgroundColor: '#f8f0fc',
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paddingHorizontal: screenWidth * 0.025,
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paddingTop: screenHeight * 0.05,
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paddingBottom: screenHeight * 0.1,
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},
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headerContainer: {
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flexDirection: 'row',
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alignItems: 'center',
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justifyContent: 'space-between',
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marginBottom: screenHeight * 0.02,
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},
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emailHeader: {
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fontSize: screenWidth * 0.045,
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fontWeight: 'bold',
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color: '#ff69b4',
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},
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dividerHorizontal: {
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width: '100%',
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height: 1,
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backgroundColor: '#ddd',
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marginVertical: screenWidth * 0.025,
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},
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emailListContainer: {
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flex: 1,
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},
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refreshButton: {
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padding: screenWidth * 0.025,
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},
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loadingContainer: {
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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},
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loadingText: {
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color: '#ff69b4',
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fontSize: screenWidth * 0.04,
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},
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errorContainer: {
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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},
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errorText: {
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color: '#ff69b4',
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fontSize: screenWidth * 0.04,
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},
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rescanIndicator: {
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justifyContent: 'center',
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alignItems: 'center',
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marginVertical: screenHeight * 0.015,
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},
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rescanText: {
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color: '#ff69b4',
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fontSize: screenWidth * 0.04,
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},
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messageContainer: {
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backgroundColor: '#fff',
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padding: screenWidth * 0.025,
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borderRadius: screenWidth * 0.025,
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marginBottom: screenHeight * 0.015,
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shadowColor: '#000',
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shadowOpacity: 0.1,
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shadowOffset: { width: 0, height: screenHeight * 0.002 },
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shadowRadius: screenWidth * 0.025,
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elevation: 2,
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},
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subject: {
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fontSize: screenWidth * 0.04,
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fontWeight: 'bold',
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color: '#000',
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},
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date: {
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fontSize: screenWidth * 0.035,
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color: '#555',
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},
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qrCodeContainer: {
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marginBottom: screenHeight * 0.015,
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},
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qrCodeLink: {
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fontSize: screenWidth * 0.035,
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color: '#0000ff',
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textDecorationLine: 'underline',
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marginVertical: screenHeight * 0.005,
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},
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qrCodeHeader: {
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fontSize: screenWidth * 0.04,
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fontWeight: 'bold',
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color: '#ff69b4',
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marginBottom: screenHeight * 0.01,
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marginTop: screenHeight * 0.015,
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},
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modalOverlay: {
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flex: 1,
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justifyContent: 'center',
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backgroundColor: 'rgba(0, 0, 0, 0.5)',
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},
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modalContainer: {
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marginHorizontal: '5%',
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borderRadius: screenWidth * 0.025,
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backgroundColor: 'white',
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padding: screenWidth * 0.025,
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elevation: 5,
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},
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modalTitle: {
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fontSize: screenWidth * 0.05,
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fontWeight: 'bold',
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marginBottom: screenHeight * 0.01,
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},
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modalText: {
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color: '#ff69b4',
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fontSize: screenWidth * 0.04,
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marginBottom: screenHeight * 0.02,
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textAlign: 'center',
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},
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modalButtons: {
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flexDirection: 'row',
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justifyContent: 'space-between',
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width: '100%',
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},
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modalButton: {
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flex: 1,
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alignItems: 'center',
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padding: screenWidth * 0.025,
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},
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modalButtonText: {
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fontSize: screenWidth * 0.04,
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color: '#000',
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},
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deleteButtonContainer: {
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flexDirection: 'row',
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alignItems: 'center',
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justifyContent: 'flex-start',
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padding: screenWidth * 0.02,
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},
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deleteButtonText: {
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marginRight: screenWidth * 0.02,
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color: '#ff69b4',
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fontSize: screenWidth * 0.035,
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},
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});
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export default EmailScreen;
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