462 lines
17 KiB
JavaScript

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { connect } from 'react-redux';
import { checkError, readJSON, jsonString, progress, tutorialId, resetTutorial as resetTutorialBuilder} from '../../../actions/tutorialBuilderActions';
import { getTutorials, resetTutorial, deleteTutorial, tutorialProgress } from '../../../actions/tutorialActions';
import { clearMessages } from '../../../actions/messageActions';
import axios from 'axios';
import { withRouter } from 'react-router-dom';
import { saveAs } from 'file-saver';
import { detectWhitespacesAndReturnReadableResult } from '../../../helpers/whitespace';
import Breadcrumbs from '../../Breadcrumbs';
import Textfield from './Textfield';
import Step from './Step';
import Dialog from '../../Dialog';
import Snackbar from '../../Snackbar';
import { withStyles } from '@material-ui/core/styles';
import Button from '@material-ui/core/Button';
import Backdrop from '@material-ui/core/Backdrop';
import CircularProgress from '@material-ui/core/CircularProgress';
import Divider from '@material-ui/core/Divider';
import FormHelperText from '@material-ui/core/FormHelperText';
import Radio from '@material-ui/core/Radio';
import RadioGroup from '@material-ui/core/RadioGroup';
import FormControlLabel from '@material-ui/core/FormControlLabel';
import InputLabel from '@material-ui/core/InputLabel';
import MenuItem from '@material-ui/core/MenuItem';
import FormControl from '@material-ui/core/FormControl';
import Select from '@material-ui/core/Select';
const styles = (theme) => ({
backdrop: {
zIndex: theme.zIndex.drawer + 1,
color: '#fff',
},
errorColor: {
color: theme.palette.error.dark
},
errorButton: {
marginTop: '5px',
height: '40px',
backgroundColor: theme.palette.error.dark,
'&:hover':{
backgroundColor: theme.palette.error.dark
}
}
});
class Builder extends Component {
constructor(props) {
super(props);
this.state = {
tutorial: 'new',
open: false,
title: '',
content: '',
string: false,
snackbar: false,
key: '',
message: ''
};
this.inputRef = React.createRef();
}
componentDidMount() {
this.props.tutorialProgress();
// retrieve tutorials only if a potential user is loaded - authentication
// is finished (success or failed)
if(!this.props.authProgress){
this.props.getTutorials();
}
}
componentDidUpdate(props, state) {
if(props.authProgress !== this.props.authProgress && !this.props.authProgress){
// authentication is completed
this.props.getTutorials();
}
if(props.message !== this.props.message){
if(this.props.message.id === 'GET_TUTORIALS_FAIL'){
// alert(this.props.message.msg);
this.props.clearMessages();
}
else if(this.props.message.id === 'TUTORIAL_DELETE_SUCCESS'){
this.onChange('new');
this.setState({ snackbar: true, key: Date.now(), message: `Das Tutorial wurde erfolgreich gelöscht.`, type: 'success' });
}
else if(this.props.message.id === 'TUTORIAL_DELETE_FAIL'){
this.setState({ snackbar: true, key: Date.now(), message: `Fehler beim Löschen des Tutorials. Versuche es noch einmal.`, type: 'error' });
}
}
}
componentWillUnmount() {
this.resetFull();
this.props.resetTutorial();
if(this.props.message.msg){
this.props.clearMessages();
}
}
uploadJsonFile = (jsonFile) => {
this.props.progress(true);
if (jsonFile.type !== 'application/json') {
this.props.progress(false);
this.setState({ open: true, string: false, title: 'Unzulässiger Dateityp', content: 'Die übergebene Datei entspricht nicht dem geforderten Format. Es sind nur JSON-Dateien zulässig.' });
}
else {
var reader = new FileReader();
reader.readAsText(jsonFile);
reader.onloadend = () => {
this.readJson(reader.result, true);
};
}
}
uploadJsonString = () => {
this.setState({ open: true, string: true, title: 'JSON-String einfügen', content: '' });
}
readJson = (jsonString, isFile) => {
try {
var result = JSON.parse(jsonString);
if (!this.checkSteps(result.steps)) {
result.steps = [{}];
}
this.props.readJSON(result);
this.setState({ snackbar: true, key: Date.now(), message: `${isFile ? 'Die übergebene JSON-Datei' : 'Der übergebene JSON-String'} wurde erfolgreich übernommen.`, type: 'success' });
} catch (err) {
this.props.progress(false);
this.props.jsonString('');
this.setState({ open: true, string: false, title: 'Ungültiges JSON-Format', content: `${isFile ? 'Die übergebene Datei' : 'Der übergebene String'} enthält nicht valides JSON. Bitte überprüfe ${isFile ? 'die JSON-Datei' : 'den JSON-String'} und versuche es erneut.` });
}
}
checkSteps = (steps) => {
if (!(steps && steps.length > 0)) {
return false;
}
return true;
}
toggle = () => {
this.setState({ open: !this.state });
}
onChange = (value) => {
this.props.resetTutorialBuilder();
this.props.tutorialId('');
this.setState({tutorial: value});
}
onChangeId = (value) => {
this.props.tutorialId(value);
if(this.state.tutorial === 'change'){
this.props.progress(true);
var tutorial = this.props.tutorials.filter(tutorial => tutorial._id === value)[0];
this.props.readJSON(tutorial);
this.setState({ snackbar: true, key: Date.now(), message: `Das ausgewählte Tutorial "${tutorial.title}" wurde erfolgreich übernommen.`, type: 'success' });
}
}
resetFull = () => {
this.props.resetTutorialBuilder();
this.setState({ snackbar: true, key: Date.now(), message: `Das Tutorial wurde erfolgreich zurückgesetzt.`, type: 'success' });
window.scrollTo(0, 0);
}
resetTutorial = () => {
var tutorial = this.props.tutorials.filter(tutorial => tutorial._id === this.props.id)[0];
this.props.readJSON(tutorial);
this.setState({ snackbar: true, key: Date.now(), message: `Das Tutorial ${tutorial.title} wurde erfolgreich auf den ursprünglichen Stand zurückgesetzt.`, type: 'success' });
window.scrollTo(0, 0);
}
submit = () => {
var isError = this.props.checkError();
if (isError) {
this.setState({ snackbar: true, key: Date.now(), message: `Die Angaben für das Tutorial sind nicht vollständig.`, type: 'error' });
window.scrollTo(0, 0);
return false;
}
else {
// export steps without attribute 'url'
var steps = this.props.steps;
var newTutorial = new FormData();
newTutorial.append('title', this.props.title);
newTutorial.append('badge', this.props.badge);
steps.forEach((step, i) => {
if(step._id){
newTutorial.append(`steps[${i}][_id]`, step._id);
}
newTutorial.append(`steps[${i}][type]`, step.type);
newTutorial.append(`steps[${i}][headline]`, step.headline);
newTutorial.append(`steps[${i}][text]`, step.text);
if(i === 0 && step.type === 'instruction'){
if(step.requirements){ // optional
step.requirements.forEach((requirement, j) => {
newTutorial.append(`steps[${i}][requirements][${j}]`, requirement);
});
}
step.hardware.forEach((hardware, j) => {
newTutorial.append(`steps[${i}][hardware][${j}]`, hardware);
});
}
if(step.xml){ // optional
newTutorial.append(`steps[${i}][xml]`, step.xml);
}
if(step.media){ // optional
if(step.media.youtube){
newTutorial.append(`steps[${i}][media][youtube]`, step.media.youtube);
}
if(step.media.picture){
newTutorial.append(`steps[${i}][media][picture]`, step.media.picture);
}
}
});
return newTutorial;
}
}
submitNew = () => {
var newTutorial = this.submit();
if(newTutorial){
const config = {
success: res => {
var tutorial = res.data.tutorial;
this.props.history.push(`/tutorial/${tutorial._id}`);
},
error: err => {
this.setState({ snackbar: true, key: Date.now(), message: `Fehler beim Erstellen des Tutorials. Versuche es noch einmal.`, type: 'error' });
window.scrollTo(0, 0);
}
};
axios.post(`${process.env.REACT_APP_BLOCKLY_API}/tutorial/`, newTutorial, config)
.then(res => {
res.config.success(res);
})
.catch(err => {
err.config.error(err);
});
}
}
submitUpdate = () => {
var updatedTutorial = this.submit();
if(updatedTutorial){
const config = {
success: res => {
var tutorial = res.data.tutorial;
this.props.history.push(`/tutorial/${tutorial._id}`);
},
error: err => {
this.setState({ snackbar: true, key: Date.now(), message: `Fehler beim Ändern des Tutorials. Versuche es noch einmal.`, type: 'error' });
window.scrollTo(0, 0);
}
};
axios.put(`${process.env.REACT_APP_BLOCKLY_API}/tutorial/${this.props.id}`, updatedTutorial, config)
.then(res => {
res.config.success(res);
})
.catch(err => {
err.config.error(err);
});
}
}
render() {
var filteredTutorials = this.props.tutorials.filter(tutorial => tutorial.creator === this.props.user.email);
return (
<div>
<Breadcrumbs content={[{ link: '/tutorial', title: 'Tutorial' }, { link: '/tutorial/builder', title: 'Builder' }]} />
<h1>Tutorial-Builder</h1>
<RadioGroup row value={this.state.tutorial} onChange={(e) => this.onChange(e.target.value)}>
<FormControlLabel style={{color: 'black'}}
value="new"
control={<Radio color="primary" />}
label="neues Tutorial erstellen"
labelPlacement="end"
/>
{filteredTutorials.length > 0 ?
<div>
<FormControlLabel style={{color: 'black'}}
disabled={this.props.index === 0}
value="change"
control={<Radio color="primary" />}
label="bestehendes Tutorial ändern"
labelPlacement="end"
/>
<FormControlLabel style={{color: 'black'}}
disabled={this.props.index === 0}
value="delete"
control={<Radio color="primary" />}
label="bestehendes Tutorial löschen"
labelPlacement="end"
/>
</div>
: null}
</RadioGroup>
<Divider variant='fullWidth' style={{ margin: '10px 0 15px 0' }} />
{this.state.tutorial === 'new' ?
/*upload JSON*/
<div ref={this.inputRef}>
<input
style={{ display: 'none' }}
accept="application/json"
onChange={(e) => { this.uploadJsonFile(e.target.files[0]) }}
id="open-json"
type="file"
/>
<label htmlFor="open-json">
<Button component="span" style={{ marginRight: '10px', marginBottom: '10px' }} variant='contained' color='primary'>Datei laden</Button>
</label>
<Button style={{ marginRight: '10px', marginBottom: '10px' }} variant='contained' color='primary' onClick={() => this.uploadJsonString()}>String laden</Button>
</div>
: <FormControl variant="outlined" style={{width: '100%'}}>
<InputLabel id="select-outlined-label">Tutorial</InputLabel>
<Select
color='primary'
labelId="select-outlined-label"
value={this.props.id}
onChange={(e) => this.onChangeId(e.target.value)}
label="Tutorial"
>
{filteredTutorials.map(tutorial =>
<MenuItem value={tutorial._id}>{tutorial.title}</MenuItem>
)}
</Select>
</FormControl>
}
<Divider variant='fullWidth' style={{ margin: '10px 0 15px 0' }} />
{this.state.tutorial === 'new' || (this.state.tutorial === 'change' && this.props.id !== '') ?
/*Tutorial-Builder-Form*/
<div>
{this.props.error.type ?
<FormHelperText style={{ lineHeight: 'initial' }} className={this.props.classes.errorColor}>{`Ein Tutorial muss mindestens jeweils eine Instruktion und eine Aufgabe enthalten.`}</FormHelperText>
: null}
{/* <Id error={this.props.error.id} value={this.props.id} /> */}
<Textfield value={this.props.title} property={'title'} label={'Titel'} error={this.props.error.title} />
<Textfield value={this.props.badge} property={'badge'} label={'Badge'} />
{this.props.steps.map((step, i) =>
<Step step={step} index={i} key={i} />
)}
{/*submit or reset*/}
<Divider variant='fullWidth' style={{ margin: '30px 0 10px 0' }} />
{this.state.tutorial === 'new' ?
<div>
<Button style={{ marginRight: '10px', marginTop: '10px' }} variant='contained' color='primary' onClick={() => this.submitNew()}>Tutorial erstellen</Button>
<Button style={{ marginTop: '10px' }} variant='contained' onClick={() => this.resetFull()}>Zurücksetzen</Button>
</div>
: <div>
<Button style={{ marginRight: '10px', marginTop: '10px' }} variant='contained' color='primary' onClick={() => this.submitUpdate()}>Tutorial ändern</Button>
<Button style={{ marginTop: '10px' }} variant='contained' onClick={() => this.resetTutorial()}>Zurücksetzen</Button>
</div>
}
<Backdrop className={this.props.classes.backdrop} open={this.props.isProgress}>
<CircularProgress color="inherit" />
</Backdrop>
</div>
: null}
{this.state.tutorial === 'delete' && this.props.id !== '' ?
<Button
className={this.props.classes.errorButton}
variant='contained'
color='primary'
onClick={() => this.props.deleteTutorial()}>Tutorial löschen</Button>
: null}
<Dialog
open={this.state.open}
maxWidth={this.state.string ? 'md' : 'sm'}
fullWidth={this.state.string}
title={this.state.title}
content={this.state.content}
onClose={this.toggle}
onClick={this.toggle}
button={'Schließen'}
actions={
this.state.string ?
<div>
<Button disabled={this.props.error.json || this.props.json === ''} variant='contained' onClick={() => { this.toggle(); this.props.progress(true); this.readJson(this.props.json, false); }} color="primary">Bestätigen</Button>
<Button onClick={() => { this.toggle(); this.props.jsonString(''); }} color="primary">Abbrechen</Button>
</div>
: null
}
>
{this.state.string ?
<Textfield value={this.props.json} property={'json'} label={'JSON'} multiline error={this.props.error.json} />
: null}
</Dialog>
<Snackbar
open={this.state.snackbar}
message={this.state.message}
type={this.state.type}
key={this.state.key}
/>
</div>
);
};
}
Builder.propTypes = {
getTutorials: PropTypes.func.isRequired,
resetTutorial: PropTypes.func.isRequired,
clearMessages: PropTypes.func.isRequired,
tutorialId: PropTypes.func.isRequired,
checkError: PropTypes.func.isRequired,
readJSON: PropTypes.func.isRequired,
jsonString: PropTypes.func.isRequired,
progress: PropTypes.func.isRequired,
deleteTutorial: PropTypes.func.isRequired,
resetTutorialBuilder: PropTypes.func.isRequired,
tutorialProgress: PropTypes.func.isRequired,
title: PropTypes.string.isRequired,
badge: PropTypes.string.isRequired,
id: PropTypes.string.isRequired,
steps: PropTypes.array.isRequired,
change: PropTypes.number.isRequired,
error: PropTypes.object.isRequired,
json: PropTypes.string.isRequired,
badge: PropTypes.string.isRequired,
isProgress: PropTypes.bool.isRequired,
tutorials: PropTypes.array.isRequired,
message: PropTypes.object.isRequired,
user: PropTypes.object.isRequired,
authProgress: PropTypes.bool.isRequired
};
const mapStateToProps = state => ({
title: state.builder.title,
badge: state.builder.badge,
id: state.builder.id,
steps: state.builder.steps,
change: state.builder.change,
error: state.builder.error,
json: state.builder.json,
isProgress: state.builder.progress,
tutorials: state.tutorial.tutorials,
message: state.message,
user: state.auth.user,
authProgress: state.auth.progress
});
export default connect(mapStateToProps, { checkError, readJSON, jsonString, progress, tutorialId, resetTutorialBuilder, getTutorials, resetTutorial, tutorialProgress, clearMessages, deleteTutorial })(withStyles(styles, { withTheme: true })(withRouter(Builder)));