import React from 'react';
import createClass from 'create-react-class';
import PropTypes from 'prop-types';
import Formsy from 'formsy-react';
import SelectField from 'material-ui/SelectField';
import { setMuiComponentAndMaybeFocus } from './utils';

const FormsySelect = createClass({

  propTypes: {
    children: PropTypes.node,
    name: PropTypes.string.isRequired,
    onChange: PropTypes.func,
    requiredError: PropTypes.string,
    validationError: PropTypes.string,
    validationErrors: PropTypes.object,
    validations: PropTypes.oneOfType([PropTypes.string, PropTypes.object]),
    value: PropTypes.any,
  },

  mixins: [Formsy.Mixin],

  getInitialState() {
    return {
      hasChanged: false,
    };
  },

  handleChange(event, index, value) {
    this.setValue(value);

    this.setState({
      hasChanged: value !== '',
    });

    if (this.props.onChange) this.props.onChange(event, value, index);
  },

  setMuiComponentAndMaybeFocus: setMuiComponentAndMaybeFocus,

  render() {
    const {
      requiredError,
      validations, // eslint-disable-line no-unused-vars
      validationError, // eslint-disable-line no-unused-vars
      validationErrors, // eslint-disable-line no-unused-vars
      value: valueProp,
      onChange,
      ...rest
    } = this.props;

    const { isRequired, isPristine, isValid, isFormSubmitted } = this;
    const isRequiredError = isRequired() && !isPristine() && !isValid() && isFormSubmitted() && requiredError;
    const errorText = this.getErrorMessage() || isRequiredError;
    const value = this.state.hasChanged ? this.getValue() : valueProp;

    return (
      <SelectField
        disabled={this.isFormDisabled()}
        errorText={errorText}
        onChange={this.handleChange}
        ref={this.setMuiComponentAndMaybeFocus}
        value={value}
        {...rest}
      >
        {this.props.children}
      </SelectField>
    );
  },
});

export default FormsySelect;