1import React, {useReducer, useState, useMemo} from 'react';
  2import Typography from '@material-ui/core/Typography';
  3import IconButton from '@material-ui/core/IconButton';
  4import Icon from '@material-ui/core/Icon';
  5import Paper from '@material-ui/core/Paper';
  6import Divider from '@material-ui/core/Divider';
  7import {makeStyles} from '@material-ui/core/styles';
  8import {Trans, useTranslation} from 'react-i18next';
  9import {useStrapi} from 'strapi-react-context';
 10import {useEvent} from '../../contexts/Event';
 11import {useToast} from '../../contexts/Toast';
 12import PassengersList from '../PassengersList';
 13import RemoveDialog from '../RemoveDialog';
 14import CarDialog from './CarDialog';
 15
 16const sortCars = (a, b) => {
 17  const dateA = new Date(a.departure).getTime();
 18  const dateB = new Date(b.departure).getTime();
 19  if (dateA === dateB) return new Date(a.createdAt) - new Date(b.createdAt);
 20  else return dateA - dateB;
 21};
 22
 23const WaitingList = ({car}) => {
 24  const classes = useStyles();
 25  const {t} = useTranslation();
 26  const {event} = useEvent();
 27  const {addToast} = useToast();
 28  const strapi = useStrapi();
 29  const [isEditing, toggleEditing] = useReducer(i => !i, false);
 30  const [removing, setRemoving] = useState(null);
 31  const [adding, setAdding] = useState(null);
 32  const passengers = event.waiting_list;
 33
 34  const cars = useMemo(
 35    () =>
 36      strapi.stores.cars
 37        ?.filter(car => car?.event?.id === event?.id)
 38        .sort(sortCars),
 39    [strapi.stores.cars, event]
 40  );
 41
 42  const availability = useMemo(() => {
 43    if (!cars) return;
 44    return cars.reduce((count, {seats, passengers = []}) => {
 45      return count + seats - passengers.length;
 46    }, 0);
 47  }, [cars]);
 48
 49  const saveWaitingList = async (waitingList, i18nError) => {
 50    try {
 51      await strapi.services.events.update(event.id, {
 52        waiting_list: waitingList,
 53      });
 54    } catch (error) {
 55      console.error(error);
 56      addToast(t(i18nError));
 57    }
 58  };
 59
 60  const addPassenger = async passenger => {
 61    return saveWaitingList(
 62      [...(event.waiting_list || []), passenger],
 63      'passenger.errors.cant_add_passenger'
 64    );
 65  };
 66
 67  const removePassenger = async index => {
 68    return saveWaitingList(
 69      passengers.filter((_, i) => i !== index),
 70      'passenger.errors.cant_remove_passenger'
 71    );
 72  };
 73
 74  const selectCar = async car => {
 75    try {
 76      await strapi.services.cars.update(car.id, {
 77        passengers: [...(car.passengers || []), passengers[adding]],
 78      });
 79      await strapi.services.events.update(event.id, {
 80        waiting_list: event.waiting_list.filter((_, i) => i !== adding),
 81      });
 82    } catch (error) {
 83      console.error(error);
 84      addToast(t('passenger.errors.cant_select_car'));
 85    }
 86    setAdding(null);
 87  };
 88
 89  const onPress = index => {
 90    if (isEditing) setRemoving(index);
 91    else setAdding(index);
 92  };
 93
 94  return (
 95    <>
 96      <Paper className={classes.root}>
 97        <div className={classes.header}>
 98          <IconButton
 99            size="small"
100            color="primary"
101            className={classes.editBtn}
102            onClick={toggleEditing}
103          >
104            {isEditing ? <Icon>check</Icon> : <Icon>edit</Icon>}
105          </IconButton>
106          <Typography variant="h5">{t('passenger.title')}</Typography>
107          <Typography variant="overline">
108            {t('passenger.availability.seats', {count: availability})}
109          </Typography>
110        </div>
111        <Divider />
112        <PassengersList
113          passengers={passengers}
114          addPassenger={addPassenger}
115          onPress={onPress}
116          icon={isEditing ? 'close' : 'chevron_right'}
117          disabled={!isEditing && availability <= 0}
118        />
119      </Paper>
120      <RemoveDialog
121        text={
122          <Trans
123            i18nKey="passenger.actions.remove_alert"
124            values={{name: passengers ? passengers[removing] : null}}
125            components={{italic: <i />, bold: <strong />}}
126          />
127        }
128        open={removing !== null}
129        onClose={() => setRemoving(null)}
130        onRemove={() => removePassenger(removing)}
131      />
132      <CarDialog
133        cars={cars}
134        open={adding !== null}
135        onClose={() => setAdding(null)}
136        onSelect={selectCar}
137      />
138    </>
139  );
140};
141
142const useStyles = makeStyles(theme => ({
143  root: {
144    position: 'relative',
145  },
146  header: {
147    padding: theme.spacing(2),
148  },
149  editBtn: {
150    position: 'absolute',
151    top: 0,
152    right: 0,
153    margin: theme.spacing(1),
154    zIndex: theme.zIndex.speedDial,
155  },
156}));
157
158export default WaitingList;