uva-covid19-testing-kiosk/components/Sync.tsx

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import AsyncStorage from '@react-native-community/async-storage';
import {parse} from 'date-fns';
import React, {ReactElement, useEffect, useState} from 'react';
import {View} from 'react-native';
import {Title} from 'react-native-paper';
import {dateFormat} from '../config/default';
import {SyncProps} from '../models/ElementProps';
import {LineCount} from '../models/LineCount';
import {Sample} from '../models/Sample';
import {CancelButton} from './Common';
import {styles} from './Styles';
// @ts-ignore
import * as firebase from 'firebase';
import 'firebase/firestore';
export const sendDataToFirebase = async (newData: Array<Sample | LineCount>, collection: firebase.firestore.CollectionReference) => {
const writes = newData.map((s: Sample | LineCount) => collection.doc(s.id).set(s));
await Promise.all(writes);
}
export const SyncMessage = (props: SyncProps): ReactElement => {
const [syncStatus, setSyncStatus] = useState<string>('Syncing data...');
useEffect(() => {
// TODO: Detect when user is online. If online, sync data with Firebase. If not online, just go home. Alternatively, set up a timer that periodically syncs data with the database.
// Upload any changes to Firebase
if (props.isConnected) {
AsyncStorage.getAllKeys().then(keys => {
const newSamples = keys
.filter(s => /^[\d]{9}-[\d]{12}-[\d]{4}$/.test(s))
.map(s => {
const propsArray = s.split('-');
return {
id: s,
barcodeId: propsArray[0],
createdAt: parse(propsArray[1], dateFormat, new Date()),
locationId: propsArray[2],
} as Sample;
});
sendDataToFirebase(newSamples, props.samplesCollection).then(() => {
setSyncStatus('Data synced.');
props.onSync();
});
});
} else {
setSyncStatus('Device is not online. Skipping sync...');
props.onCancel();
}
});
return <View style={styles.container}>
<View style={styles.centerMiddle}>
<Title style={styles.heading}>{syncStatus}</Title>
<CancelButton onClicked={props.onCancel} />
</View>
</View>;
}