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import React from 'react';
import { makeStyles } from '@material-ui/core/styles';
import { Card, CardActionArea } from '@material-ui/core/';
import { Which, Poll } from 'which-types';
import { useSnackbar } from 'notistack';
import PercentageBar from './PercentageBar';
import UserStrip from '../UserStrip/UserStrip';
import BackgroundImage from '../Image/BackgroundImage';
import { post } from '../../requests';
import { useAuth } from '../../hooks/useAuth';
interface PropTypes {
poll: Poll;
setPoll: (poll: Poll) => void;
}
const DATE_FORMAT = {
month: 'long',
day: 'numeric',
year: 'numeric',
hour: '2-digit',
minute: '2-digit'
};
const useStyles = makeStyles(theme => ({
media: {
display: 'flex',
height: theme.spacing(50)
},
rateLine: {
position: 'relative',
width: '100%',
height: theme.spacing(2),
backgroundColor: theme.palette.primary.light,
transitionDuration: '0.5s'
},
highlight: {
backgroundColor: `${theme.palette.primary.main} !important`
},
fillRateLine: {
height: theme.spacing(2),
backgroundColor: theme.palette.primary.light,
transitionDuration: '0.5s'
}
}));
const PollCard: React.FC<PropTypes> = React.memo(({ poll, setPoll }) => {
const classes = useStyles();
const { author, contents: { left, right }, vote } = poll;
const { enqueueSnackbar } = useSnackbar();
const { isAuthenticated } = useAuth();
const date: string = new Date(poll.createdAt).toLocaleString('default', DATE_FORMAT);
let timer: ReturnType<typeof setTimeout>;
let prevent = false;
const handleVote = (which: Which) => {
if (!isAuthenticated) {
enqueueSnackbar('Unauthorized users can not vote in polls', {
variant: 'error'
});
} else if (vote) {
enqueueSnackbar('You have already voted in this poll', {
variant: 'error'
});
} else {
const newVote = ({ which, pollId: poll._id });
const newPoll = { ...poll };
newPoll.contents[which].votes += 1;
newPoll.vote = {
_id: '',
authorId: '',
createdAt: new Date(),
...newVote
};
setPoll(newPoll);
post('votes/', newVote);
}
};
const handleClick = (which: Which) => () => {
if (!prevent) {
prevent = true;
timer = setTimeout(() => {
prevent = false;
}, 200);
} else {
clearTimeout(timer);
prevent = false;
handleVote(which);
}
};
let leftPercentage;
let rightPercentage;
if (left.votes || right.votes) {
leftPercentage = Math.round(100 * (left.votes / (left.votes + right.votes)));
rightPercentage = 100 - leftPercentage;
} else {
leftPercentage = 0;
rightPercentage = 0;
}
const dominant: Which = left.votes >= right.votes ? 'left' : 'right';
return (
<Card elevation={3}>
<UserStrip user={author} info={date} />
<div className={classes.media}>
<CardActionArea onClick={handleClick('left')} className={classes.media}>
<BackgroundImage src={left.url} />
<PercentageBar value={leftPercentage} which="left" like={vote?.which === 'left'} />
</CardActionArea>
<CardActionArea onClick={handleClick('right')} className={classes.media}>
<BackgroundImage src={right.url} />
<PercentageBar value={rightPercentage} which="right" like={vote?.which === 'right'} />
</CardActionArea>
</div>
<div className={`${classes.rateLine} ${dominant === 'right' ? classes.highlight : ''}`}>
<div
className={`${classes.fillRateLine} ${dominant === 'left' ? classes.highlight : ''}`}
style={{ width: `${leftPercentage}%` }}
/>
</div>
</Card>
);
});
export default PollCard;
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