1import React, {useReducer, useState, useEffect, 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 [passengers, setPassengers] = useState(event.waiting_list);
 30  const [isEditing, toggleEditing] = useReducer(i => !i, false);
 31  const [removing, setRemoving] = useState(null);
 32  const [adding, setAdding] = useState(null);
 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  useEffect(() => {
 50    setPassengers(event.waiting_list);
 51  }, [event.waiting_list]);
 52
 53  const addPassenger = async passenger => {
 54    try {
 55      await strapi.services.events.update(event.id, {
 56        waiting_list: [...(event.waiting_list || []), passenger],
 57      });
 58    } catch (error) {
 59      console.error(error);
 60      addToast(t('passenger.errors.cant_add_passenger'));
 61    }
 62  };
 63
 64  const removePassenger = index => {
 65    setPassengers(passengers.filter((_, i) => i !== index));
 66  };
 67
 68  const savePassengers = async () => {
 69    try {
 70      await strapi.services.events.update(event.id, {waiting_list: passengers});
 71    } catch (error) {
 72      console.error(error);
 73      addToast(t('passenger.errors.cant_save_passengers'));
 74    }
 75  };
 76
 77  const selectCar = async car => {
 78    try {
 79      await strapi.services.cars.update(car.id, {
 80        passengers: [...(car.passengers || []), passengers[adding]],
 81      });
 82      await strapi.services.events.update(event.id, {
 83        waiting_list: event.waiting_list.filter((_, i) => i !== adding),
 84      });
 85    } catch (error) {
 86      console.error(error);
 87      addToast(t('passenger.errors.cant_select_car'));
 88    }
 89    setAdding(null);
 90  };
 91
 92  const onEdit = () => {
 93    if (isEditing) savePassengers();
 94    toggleEditing();
 95  };
 96
 97  const onPress = index => {
 98    if (isEditing) setRemoving(index);
 99    else setAdding(index);
100  };
101
102  return (
103    <>
104      <Paper className={classes.root}>
105        <div className={classes.header}>
106          <IconButton
107            size="small"
108            color="primary"
109            className={classes.editBtn}
110            onClick={onEdit}
111          >
112            {isEditing ? <Icon>check</Icon> : <Icon>edit</Icon>}
113          </IconButton>
114          <Typography variant="h5">{t('passenger.title')}</Typography>
115          <Typography variant="overline">
116            {t('passenger.availability.seats', {count: availability})}
117          </Typography>
118        </div>
119        <Divider />
120        <PassengersList
121          hideEmpty
122          places={50}
123          passengers={passengers}
124          addPassenger={addPassenger}
125          onPress={onPress}
126          icon={isEditing ? 'close' : 'chevron_right'}
127          disabled={availability <= 0}
128        />
129      </Paper>
130      <RemoveDialog
131        text={
132          <Trans
133            i18nKey="passenger.actions.remove_alert"
134            values={{name: passengers ? passengers[removing] : null}}
135            components={{italic: <i />, bold: <strong />}}
136          />
137        }
138        open={removing !== null}
139        onClose={() => setRemoving(null)}
140        onRemove={() => removePassenger(removing)}
141      />
142      <CarDialog
143        cars={cars}
144        open={adding !== null}
145        onClose={() => setAdding(null)}
146        onSelect={selectCar}
147      />
148    </>
149  );
150};
151
152const useStyles = makeStyles(theme => ({
153  root: {
154    position: 'relative',
155  },
156  header: {
157    padding: theme.spacing(2),
158  },
159  editBtn: {
160    position: 'absolute',
161    top: 0,
162    right: 0,
163    margin: theme.spacing(1),
164    zIndex: theme.zIndex.speedDial,
165  },
166}));
167
168export default WaitingList;