uva-covid19-testing-kiosk/App.tsx

316 lines
11 KiB
TypeScript

// @refresh reset
import AsyncStorage from '@react-native-community/async-storage';
import NetInfo, {NetInfoState, NetInfoStateType} from '@react-native-community/netinfo';
import {format, parse} from 'date-fns';
import {BarCodeEvent, BarCodeScanner, PermissionResponse} from 'expo-barcode-scanner';
import * as firebase from 'firebase';
import 'firebase/firestore';
import React, {ReactElement, useCallback, useEffect, useState} from 'react';
import {AppRegistry, SafeAreaView, View, YellowBox} from 'react-native';
import {Appbar, DefaultTheme, Provider as PaperProvider, Snackbar, Title,} from 'react-native-paper';
import {expo as appExpo} from './app.json';
import {CancelButton} from './components/Common';
import {InputLineCountButton, InputLineCountScreen} from './components/LineCount';
import {BarCodeDisplay, PrintButton, PrintingMessage} from './components/Print';
import {IdNumberInput, InputIdButton, ScanButton, Scanner} from './components/Scan';
import {SettingsScreen} from './components/Settings';
import {colors, styles} from './components/Styles';
import {sendDataToFirebase, SyncMessage} from './components/Sync';
import {dateFormat, firebaseConfig} from './config/default';
import {BarcodeScannerAppState} from './models/BarcodeScannerAppState';
import {CameraType, ElementProps, StateProps} from './models/ElementProps';
import {LineCount} from './models/LineCount';
import {Sample} from './models/Sample';
// Initialize Firebase if not already initialized.
if (firebase.apps.length === 0) {
firebase.initializeApp(firebaseConfig);
}
YellowBox.ignoreWarnings([
'Setting a timer for a long period of time', // Ignore Firebase timer warnings
'Remote debugger is in a background tab', // Ignore remote debugger warnings
]);
const db = firebase.firestore();
const samplesCollection = db.collection('samples');
const countsCollection = db.collection('counts');
const theme = {
...DefaultTheme,
colors: colors,
}
export default function Main() {
const [appState, setAppState] = useState<BarcodeScannerAppState>(BarcodeScannerAppState.INITIAL);
const [sampleId, setSampleId] = useState<string>('');
const [barCodeId, setBarCodeId] = useState<string>('');
const [sampleDate, setSampleDate] = useState<Date>(new Date());
const [locationStr, setLocationStr] = useState<string>('0000');
const [errorMessage, setErrorMessage] = useState<string>('');
const [samples, setSamples] = useState<Sample[]>([]);
const [lineCounts, setLineCounts] = useState<LineCount[]>([]);
const [cameraType, setCameraType] = useState<CameraType>('back');
const [numCopies, setNumCopies] = useState<number>(0);
const [isConnected, setIsConnected] = useState<boolean>(false);
const defaultsInitializers = {
'default.cameraType': (s: string) => setCameraType(s as CameraType),
'default.numCopies': (s: string) => setNumCopies(parseInt(s, 10)),
'default.locationStr': (s: string) => setLocationStr(s),
};
useEffect(() => {
AsyncStorage.multiGet(Object.keys(defaultsInitializers)).then(storedDefaults => {
console.log('storedDefaults', storedDefaults);
storedDefaults.forEach(d => {
if (d[1] !== null) {
// @ts-ignore
defaultsInitializers[d[0]](d[1]);
}
});
});
NetInfo.addEventListener((state: NetInfoState) => {
if (state.type === NetInfoStateType.wifi) {
setIsConnected(!!(state.isConnected && state.isInternetReachable));
}
});
BarCodeScanner.requestPermissionsAsync().then((value: PermissionResponse) => {
if (value.granted) {
setAppState(BarcodeScannerAppState.DEFAULT);
} else {
setAppState(BarcodeScannerAppState.ERROR);
}
});
const unsubscribeSamples = samplesCollection.onSnapshot(querySnapshot => {
// Transform and sort the data returned from Firebase
const samplesFirestore = querySnapshot
.docChanges()
.filter(({type}) => type === 'added')
.map(({doc}) => {
const sample = doc.data();
return {...sample, createdAt: sample.createdAt.toDate()} as Sample;
})
.sort((a, b) => b.createdAt.getTime() - a.createdAt.getTime());
appendSamples(samplesFirestore);
});
const unsubscribeCounts = countsCollection.onSnapshot(querySnapshot => {
// Transform and sort the data returned from Firebase
const lineCountsFirestore = querySnapshot
.docChanges()
.filter(({type}) => type === 'added')
.map(({doc}) => {
const lineCount = doc.data();
return {...lineCount, createdAt: lineCount.createdAt.toDate()} as LineCount;
})
.sort((a, b) => b.createdAt.getTime() - a.createdAt.getTime());
appendLineCounts(lineCountsFirestore);
});
return () => {
unsubscribeSamples()
unsubscribeCounts()
}
}, []);
const _doNothing = () => {
};
const _scan = () => {
setErrorMessage('');
setAppState(BarcodeScannerAppState.SCANNING);
};
const _inputIdNumber = () => {
setErrorMessage('');
setAppState(BarcodeScannerAppState.INPUT);
};
const _inputLineCount = () => {
setErrorMessage('');
setAppState(BarcodeScannerAppState.COUNT);
};
const _print = () => setAppState(BarcodeScannerAppState.PRINTING);
const _printed = () => setAppState(BarcodeScannerAppState.PRINTED);
const _home = () => setAppState(BarcodeScannerAppState.DEFAULT);
const _settings = () => setAppState(BarcodeScannerAppState.SETTINGS);
const handleBarCodeScanned = (e: BarCodeEvent) => {
// Make sure the data is the right length.
// Scanned barcodes will be exactly 14 digits long.
// Manually-entered ID numbers will be exactly 9 digits long.
const barCodeString = e.data;
const pattern = /^[\d]{14}$|^[\d]{9}$/;
console.log('barCodeString', barCodeString);
if (pattern.test(barCodeString)) {
const cardId = e.data.slice(0, 9);
const newSampleDate = new Date();
const newSampleId = [cardId, format(newSampleDate, dateFormat), locationStr].join('-');
setSampleId(newSampleId);
setBarCodeId(cardId);
setSampleDate(newSampleDate);
setAppState(BarcodeScannerAppState.SCANNED);
} else {
setErrorMessage(`The barcode data "${e.data}" is not from a valid ID card.`);
setAppState(BarcodeScannerAppState.ERROR);
}
};
const handleLineCountSubmitted = (newCount: number) => {
const now = new Date();
const newId = `${locationStr}-${format(now, dateFormat)}`;
const newData: LineCount = {
id: newId,
lineCount: newCount,
locationId: locationStr,
createdAt: now,
};
sendDataToFirebase([newData], countsCollection);
}
const appendSamples = useCallback((newSamples) => {
setSamples((previousSamples) => previousSamples.concat(newSamples));
}, [samples]);
const appendLineCounts = useCallback((newLineCounts) => {
setLineCounts((previousLineCounts) => previousLineCounts.concat(newLineCounts));
}, [lineCounts]);
const ErrorMessage = (props: ElementProps): ReactElement => {
return <View style={styles.fullScreen}>
<View style={styles.container}>
<ScanButton onClicked={_scan}/>
<InputIdButton onClicked={_inputIdNumber}/>
</View>
<Snackbar
visible={appState === BarcodeScannerAppState.ERROR}
onDismiss={_doNothing}
style={styles.error}
>{errorMessage === '' ? 'Something went wrong. Try again.' : errorMessage}</Snackbar>
</View>
}
const LoadingMessage = (props: ElementProps): ReactElement => {
return <Snackbar
visible={appState === BarcodeScannerAppState.INITIAL}
onDismiss={_doNothing}
>Loading...</Snackbar>;
}
const ActionButtons = (props: ElementProps): ReactElement => {
return <View>
<PrintButton onClicked={_print}/>
<CancelButton onClicked={_home}/>
</View>
}
function App(props: StateProps): ReactElement {
switch (props.appState) {
case BarcodeScannerAppState.INITIAL:
return <LoadingMessage/>;
case BarcodeScannerAppState.DEFAULT:
return <View style={styles.container}>
<ScanButton onClicked={_scan}/>
<InputIdButton onClicked={_inputIdNumber}/>
<InputLineCountButton onClicked={_inputLineCount}/>
</View>;
case BarcodeScannerAppState.PRINTED:
return <SyncMessage
isConnected={isConnected}
samplesCollection={samplesCollection}
countsCollection={countsCollection}
onCancel={_home}
onSync={_home}
/>;
case BarcodeScannerAppState.PRINTING:
return <View style={styles.container}>
<PrintingMessage
numCopies={numCopies}
onCancel={_printed}
id={sampleId}
barCodeId={barCodeId}
date={sampleDate}
location={locationStr}
/>
</View>;
case BarcodeScannerAppState.SCANNED:
return <View style={styles.container}>
<BarCodeDisplay
id={sampleId}
barCodeId={barCodeId}
date={sampleDate}
location={locationStr}
/>
<ActionButtons/>
</View>;
case BarcodeScannerAppState.SCANNING:
return <Scanner
onScanned={handleBarCodeScanned}
onCancel={_home}
cameraType={cameraType}
/>;
case BarcodeScannerAppState.INPUT:
return <IdNumberInput
onScanned={handleBarCodeScanned}
onCancel={_home}
cameraType={undefined}
/>;
case BarcodeScannerAppState.COUNT:
return <InputLineCountScreen
onSave={handleLineCountSubmitted}
onCancel={_home}
/>;
case BarcodeScannerAppState.SETTINGS:
return <SettingsScreen
cameraType={cameraType}
numCopies={numCopies}
locationStr={locationStr}
onSave={(newCameraType: CameraType, newNumCopies: number, newLocationStr: string) => {
setCameraType(newCameraType);
setNumCopies(newNumCopies);
setLocationStr(newLocationStr);
console.log(newCameraType);
console.log(newLocationStr);
console.log(newNumCopies);
AsyncStorage.multiSet([
['default.cameraType', newCameraType as string],
['default.locationStr', newLocationStr],
['default.numCopies', newNumCopies.toString()],
]).then(() => {
console.log('New defaults stored.');
AsyncStorage.multiGet(Object.keys(defaultsInitializers)).then(storedDefaults => {
console.log('stored defaults after saving Settings:', storedDefaults);
});
});
_home();
}}
onCancel={_home}
/>;
default:
return <ErrorMessage/>;
}
}
return (
<PaperProvider theme={theme}>
<Appbar.Header dark={true} style={isConnected ? styles.connected : styles.disconnected}>
<Appbar.Content title={`${appExpo.description} #${locationStr}`}/>
<Appbar.Action icon="home" onPress={_home}/>
<Appbar.Action icon="settings" onPress={_settings}/>
</Appbar.Header>
<SafeAreaView style={styles.safeAreaView}>
<App appState={appState}/>
</SafeAreaView>
</PaperProvider>
);
};
AppRegistry.registerComponent(appExpo.name, () => Main);