import { makeStyles } from '@material-ui/styles';
import { useQuery } from '@apollo/react-hooks';
import gql from 'graphql-tag';
import React from 'react';
import Toolbar from '@material-ui/core/Toolbar';
import ErrorOutline from '@material-ui/icons/ErrorOutline';
import CheckCircleOutline from '@material-ui/icons/CheckCircleOutline';
import Filter, { parse, stringify } from './Filter';
// simple pipe operator
// pipe(o, f, g, h) <=> h(g(f(o)))
// TODO: move this out?
const pipe = (initial, ...funcs) => funcs.reduce((acc, f) => f(acc), initial);
const useStyles = makeStyles(theme => ({
toolbar: {
backgroundColor: theme.palette.grey['100'],
borderColor: theme.palette.grey['300'],
borderWidth: '1px 0',
borderStyle: 'solid',
margin: theme.spacing(0, -1),
},
spacer: {
flex: 1,
},
}));
const BUG_COUNT_QUERY = gql`
query($query: String) {
defaultRepository {
bugs: allBugs(query: $query) {
totalCount
}
}
}
`;
// This prepends the filter text with a count
function CountingFilter({ query, children, ...props }) {
const { data, loading, error } = useQuery(BUG_COUNT_QUERY, {
variables: { query },
});
var prefix;
if (loading) prefix = '...';
else if (error) prefix = '???';
// TODO: better prefixes & error handling
else prefix = data.defaultRepository.bugs.totalCount;
return (
<Filter {...props}>
{prefix} {children}
</Filter>
);
}
function FilterToolbar({ query, queryLocation }) {
const classes = useStyles();
const params = parse(query);
const hasKey = key => params[key] && params[key].length > 0;
const hasValue = (key, value) => hasKey(key) && params[key].includes(value);
const loc = params => pipe(params, stringify, queryLocation);
const replaceParam = (key, value) => params => ({
...params,
[key]: [value],
});
const clearParam = key => params => ({
...params,
[key]: [],
});
// TODO: author/label filters
return (
<Toolbar className={classes.toolbar}>
<CountingFilter
active={hasValue('status', 'open')}
query={pipe(
params,
replaceParam('status', 'open'),
clearParam('sort'),
stringify
)}
to={pipe(params, replaceParam('status', 'open'), loc)}
icon={ErrorOutline}
>
open
</CountingFilter>
<CountingFilter
active={hasValue('status', 'closed')}
query={pipe(
params,
replaceParam('status', 'closed'),
clearParam('sort'),
stringify
)}
to={pipe(params, replaceParam('status', 'closed'), loc)}
icon={CheckCircleOutline}
>
closed
</CountingFilter>
<div className={classes.spacer} />
{/*
<Filter active={hasKey('author')}>Author</Filter>
<Filter active={hasKey('label')}>Label</Filter>
*/}
<Filter
dropdown={[
['id', 'ID'],
['creation', 'Newest'],
['creation-asc', 'Oldest'],
['edit', 'Recently updated'],
['edit-asc', 'Least recently updated'],
]}
active={hasKey('sort')}
itemActive={key => hasValue('sort', key)}
to={key => pipe(params, replaceParam('sort', key), loc)}
>
Sort
</Filter>
</Toolbar>
);
}
export default FilterToolbar;