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import React, { useState } from 'react';
import { makeStyles } from '@material-ui/core/styles';
import {
Card,
CardActionArea,
CardMedia
} from '@material-ui/core/';
import { Which, Poll } from 'which-types';
import { useSnackbar } from 'notistack';
import PercentageBar from './PercentageBar';
import UserStrip from '../UserStrip/UserStrip';
import { post } from '../../requests';
import { useAuth } from '../../hooks/useAuth';
interface PropTypes {
initialPoll: Poll;
}
const DATE_FORMAT = {
month: 'long',
day: 'numeric',
year: 'numeric',
hour: '2-digit',
minute: '2-digit'
};
const useStyles = makeStyles(theme => ({
root: {
maxWidth: theme.spacing(75),
height: 488,
margin: '40px auto'
},
images: {
height: theme.spacing(50),
width: 300
},
imagesBlock: {
display: 'flex'
},
rateLine: {
position: 'relative',
width: '100%',
height: theme.spacing(2),
backgroundColor: theme.palette.primary.light,
transitionDuration: '0.5s'
},
highlight: {
backgroundColor: `${theme.palette.primary.main} !important`
},
fillRateLine: {
height: theme.spacing(2),
backgroundColor: theme.palette.primary.light,
transitionDuration: '0.5s'
}
}));
const PollCard: React.FC<PropTypes> = ({ initialPoll }) => {
const [poll, setPoll] = useState<Poll>(initialPoll);
const classes = useStyles();
const { author, contents: { left, right }, vote } = poll;
const { enqueueSnackbar } = useSnackbar();
const { isAuthenticated } = useAuth();
const date: string = new Date(poll.createdAt).toLocaleString('default', DATE_FORMAT);
const handleVote = (which: Which) => {
if (!isAuthenticated()) {
enqueueSnackbar('Unauthorized users can not vote in polls', {
variant: 'error'
});
} else if (vote) {
enqueueSnackbar('You have already voted in this poll', {
variant: 'error'
});
} else {
const newVote = ({ which, pollId: poll._id });
post('votes/', newVote);
poll.contents[which].votes += 1;
poll.vote = {
_id: '',
authorId: '',
createdAt: new Date(),
...newVote
};
setPoll({ ...poll });
}
};
const handleLeft = () => handleVote('left');
const handleRight = () => handleVote('right');
let leftPercentage;
let rightPercentage;
if (left.votes || right.votes) {
leftPercentage = Math.round(100 * (left.votes / (left.votes + right.votes)));
rightPercentage = 100 - leftPercentage;
} else {
leftPercentage = 0;
rightPercentage = 0;
}
const dominant: Which = left.votes >= right.votes ? 'left' : 'right';
return (
<Card className={classes.root}>
<UserStrip user={author} info={date} />
<div className={classes.imagesBlock}>
<CardActionArea onDoubleClick={handleLeft}>
<CardMedia
className={classes.images}
image={left.url}
/>
<PercentageBar value={leftPercentage} which="left" like={vote?.which === 'left'} />
</CardActionArea>
<CardActionArea onDoubleClick={handleRight}>
<CardMedia
className={classes.images}
image={right.url}
/>
<PercentageBar value={rightPercentage} which="right" like={vote?.which === 'right'} />
</CardActionArea>
</div>
<div className={`${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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