import React, { Fragment, PureComponent } from 'react';
import PropTypes from 'prop-types';

import { withStyles } from '@material-ui/core/styles';

import {
  Input,
  InputLabel,
  MenuItem,
  FormControl,
  ListItemText,
  Select,
  Checkbox,
  Chip,
} from '@material-ui/core';

const styles = theme => ({
  demo: {
    height: 'auto',
  },
  divider: {
    margin: `${theme.spacing(3)}px 0`,
  },
  field: {
    margin: `${theme.spacing(3)}px 0`,
  },
  root: {
    display: 'flex',
    flexWrap: 'wrap',
  },
  formControl: {
    margin: theme.spacing(1),
    minWidth: 120,
    maxWidth: 300,
  },
  chips: {
    display: 'flex',
    flexWrap: 'wrap',
  },
  chip: {
    margin: theme.spacing(0.25),
  },
});

const ITEM_HEIGHT = 48;
const ITEM_PADDING_TOP = 8;
const MenuProps = {
  PaperProps: {
    style: {
      maxHeight: (ITEM_HEIGHT * 4.5) + ITEM_PADDING_TOP,
      width: 250,
    },
  },
};

const names = [
  'Oliver Hansen',
  'Van Henry',
  'April Tucker',
  'Ralph Hubbard',
  'Omar Alexander',
  'Carlos Abbott',
  'Miriam Wagner',
  'Bradley Wilkerson',
  'Virginia Andrews',
  'Kelly Snyder',
];

class MultipleSelectbox extends PureComponent {
  state = {
    name: [],
  };

  handleChange = event => {
    this.setState({ name: event.target.value });
  };

  render() {
    const { classes, theme } = this.props;
    return (
      <Fragment>
        <FormControl className={classes.formControl}>
          <InputLabel htmlFor="select-multiple">Name</InputLabel>
          <Select
            multiple
            value={this.state.name}
            onChange={this.handleChange}
            input={<Input id="select-multiple" />}
            MenuProps={MenuProps}
          >
            {names.map(name => (
              <MenuItem
                key={name}
                value={name}
                style={{
                  fontWeight:
                    this.state.name.indexOf(name) === -1
                      ? theme.typography.fontWeightRegular
                      : theme.typography.fontWeightMedium,
                }}
              >
                {name}
              </MenuItem>
            ))}
          </Select>
        </FormControl>
        <FormControl className={classes.formControl}>
          <InputLabel htmlFor="select-multiple-checkbox">Tag</InputLabel>
          <Select
            multiple
            value={this.state.name}
            onChange={this.handleChange}
            input={<Input id="select-multiple-checkbox" />}
            renderValue={selected => selected.join(', ')}
            MenuProps={MenuProps}
          >
            {names.map(name => (
              <MenuItem key={name} value={name}>
                <Checkbox checked={this.state.name.indexOf(name) > -1} />
                <ListItemText primary={name} />
              </MenuItem>
            ))}
          </Select>
        </FormControl>
        <FormControl className={classes.formControl}>
          <InputLabel htmlFor="select-multiple-chip">Chip</InputLabel>
          <Select
            multiple
            value={this.state.name}
            onChange={this.handleChange}
            input={<Input id="select-multiple-chip" />}
            renderValue={selected => (
              <div className={classes.chips}>
                {selected.map(value => <Chip key={value} label={value} className={classes.chip} />)}
              </div>
            )}
            MenuProps={MenuProps}
          >
            {names.map(name => (
              <MenuItem
                key={name}
                value={name}
                style={{
                  fontWeight:
                    this.state.name.indexOf(name) === -1
                      ? theme.typography.fontWeightRegular
                      : theme.typography.fontWeightMedium,
                }}
              >
                {name}
              </MenuItem>
            ))}
          </Select>
        </FormControl>
      </Fragment>
    );
  }
}

MultipleSelectbox.propTypes = {
  classes: PropTypes.object.isRequired,
  theme: PropTypes.object.isRequired,
};

export default withStyles(styles, { withTheme: true })(MultipleSelectbox);