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import React, { useState, useRef } from 'react';
import { Link } from 'react-router-dom';
import { makeStyles } from '@material-ui/styles';
import Menu from '@material-ui/core/Menu';
import MenuItem from '@material-ui/core/MenuItem';
import ArrowDropDown from '@material-ui/icons/ArrowDropDown';
function parse(query) {
// TODO: extract the rest of the query?
const params = {};
// TODO: support escaping without quotes
const re = /(\w+):([A-Za-z0-9-]+|(["'])(([^\3]|\\.)*)\3)+/g;
let matches;
while ((matches = re.exec(query)) !== null) {
if (!params[matches[1]]) {
params[matches[1]] = [];
}
let value;
if (matches[4]) {
value = matches[4];
} else {
value = matches[2];
}
value = value.replace(/\\(.)/g, '$1');
params[matches[1]].push(value);
}
return params;
}
function quote(value) {
const hasSingle = value.includes("'");
const hasDouble = value.includes('"');
const hasSpaces = value.includes(' ');
if (!hasSingle && !hasDouble && !hasSpaces) {
return value;
}
if (!hasDouble) {
return `"${value}"`;
}
if (!hasSingle) {
return `'${value}'`;
}
value = value.replace(/"/g, '\\"');
return `"${value}"`;
}
function stringify(params) {
const parts = Object.entries(params).map(([key, values]) => {
return values.map(value => `${key}:${quote(value)}`);
});
return [].concat(...parts).join(' ');
}
const useStyles = makeStyles(theme => ({
element: {
...theme.typography.body2,
color: ({ active }) => (active ? '#333' : '#444'),
padding: theme.spacing(0, 1),
fontWeight: ({ active }) => (active ? 600 : 400),
textDecoration: 'none',
display: 'flex',
background: 'none',
border: 'none',
},
itemActive: {
fontWeight: 600,
},
icon: {
paddingRight: theme.spacing(0.5),
},
}));
function Dropdown({ children, dropdown, itemActive, to, ...props }) {
const [open, setOpen] = useState(false);
const buttonRef = useRef();
const classes = useStyles();
return (
<>
<button ref={buttonRef} onClick={() => setOpen(!open)} {...props}>
{children}
<ArrowDropDown fontSize="small" />
</button>
<Menu
getContentAnchorEl={null}
anchorOrigin={{
vertical: 'bottom',
horizontal: 'left',
}}
transformOrigin={{
vertical: 'top',
horizontal: 'left',
}}
open={open}
onClose={() => setOpen(false)}
anchorEl={buttonRef.current}
>
{dropdown.map(([key, value]) => (
<MenuItem
component={Link}
to={to(key)}
className={itemActive(key) ? classes.itemActive : null}
onClick={() => setOpen(false)}
key={key}
>
{value}
</MenuItem>
))}
</Menu>
</>
);
}
function Filter({ active, to, children, icon: Icon, dropdown, ...props }) {
const classes = useStyles({ active });
const content = (
<>
{Icon && <Icon fontSize="small" classes={{ root: classes.icon }} />}
<div>{children}</div>
</>
);
if (dropdown) {
return (
<Dropdown
{...props}
to={to}
dropdown={dropdown}
className={classes.element}
>
{content}
</Dropdown>
);
}
if (to) {
return (
<Link to={to} {...props} className={classes.element}>
{content}
</Link>
);
}
return <div className={classes.element}>{content}</div>;
}
export default Filter;
export { parse, stringify, quote };
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