348 lines
11 KiB
TypeScript
348 lines
11 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 } 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 [bannerOpacity] = useState(new Animated.Value(0));
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const [isModalVisible, setIsModalVisible] = useState(false);
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const [selectedQrCodeId, setSelectedQrCodeId] = useState(null);
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useEffect(() => {
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fetchUserEmail();
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}, []);
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// Function to fetch user email
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const fetchUserEmail = async () => {
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try {
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console.log('fetchUserEmail triggered');
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const userInfo = await getUserInfo();
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setUserEmail(userInfo.email);
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} catch (error) {
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console.error('Error fetching user email:', error);
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setUserEmail('Error fetching email');
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}
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};
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// Function to initiate the email fetching process
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const startInboxScanning = async () => {
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setRescanLoading(true);
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showBanner();
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try {
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// Fetch the current authentication session
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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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// Use the fetched tokens to initiate email fetching
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await getEmails(googleAccessToken, googleRefreshToken);
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setRescanLoading(false);
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} else {
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console.error('Google access token or refresh token not found in the payload');
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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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console.error('Error initiating email fetch:', 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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// Function to show the banner
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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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// Function to poll for scanned emails
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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) {
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setEmailData(scannedEmails);
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setLoading(false);
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}
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} catch (error) {
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console.error('Error fetching scanned emails:', error);
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setError('Error fetching emails.');
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setLoading(false);
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}
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}, 10000); // Poll every 10 seconds
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return () => clearInterval(pollingInterval); // Cleanup the interval
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}, []);
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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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console.error('Error refreshing scanned emails:', 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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startInboxScanning();
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const stopPolling = startPollingForScannedEmails();
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return () => {
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stopPolling(); // Stop polling when the screen is not in focus
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};
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}, [startPollingForScannedEmails])
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);
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const handleUrlClick = (id) => {
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console.log('handleURLClik ID :',)
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setSelectedQrCodeId(id);
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setIsModalVisible(true);
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};
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return (
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<View style={styles.container}>
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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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{error && (
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<View style={styles.errorContainer}>
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<Text style={{ color: '#ff69b4' }}>{error}</Text>
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</View>
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)}
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{emailData && (
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<>
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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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{rescanLoading && (
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<View style={styles.rescanIndicator}>
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<Text style={{ color: '#ff69b4' }}>Rescanning inbox...</Text>
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</View>
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)}
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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 === item && (
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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>
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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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)}
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<Animated.View style={[styles.banner, { opacity: bannerOpacity }]}>
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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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{/* The greyspace outside , made clickable to close the modl */}
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<TouchableOpacity
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style={styles.modalContainer}
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activeOpacity={1}
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onPressOut={() => setIsModalVisible(false)}
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>
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{/* Ensure ScannedDataBox does not render another modal */}
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<ScannedDataBox qrCodeId={selectedQrCodeId} clearScanData={() => setIsModalVisible(false)} />
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</TouchableOpacity>
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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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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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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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banner: {
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position: 'absolute',
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top: screenHeight * 0.4, // Adjusts the banner to appear in the middle of the screen
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left: screenWidth * 0.1, // Adjust these values to center the banner as needed
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right: screenWidth * 0.1,
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backgroundColor: '#ff69b4',
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paddingVertical: screenHeight * 0.02, // Adjust the height of the banner
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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, // Ensure it appears above other elements
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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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modalContainer: {
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flex: 1,
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justifyContent: 'center',
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alignItems: 'center',
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backgroundColor: 'rgba(0, 0, 0, 0.5)', // dark overlay
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},
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innerModalContainer: {
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backgroundColor: '#ffe6f0', // pink box color
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padding: screenWidth * 0.05,
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borderRadius: screenWidth * 0.03,
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alignItems: 'center',
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},
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modalCloseButton: {
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position: 'absolute',
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top: screenWidth * 0.02,
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right: screenWidth * 0.02,
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zIndex: 1, // Ensure it is above other content
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}
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});
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export default EmailScreen;
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