/**
 * Copyright (c) Nicolas Gallagher.
 * Copyright (c) Facebook, Inc. and its affiliates.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

import type { ColorValue } from '../../types';
import type { ViewProps } from '../View';

import * as React from 'react';
import { forwardRef } from 'react';
import createElement from '../createElement';
import StyleSheet from '../StyleSheet';
import View from '../View';

type CheckBoxProps = {
  ...ViewProps,
  color?: ?ColorValue,
  disabled?: boolean,
  onChange?: ?(e: any) => void,
  onValueChange?: ?(e: any) => void,
  value?: boolean
};

const CheckBox = forwardRef<CheckBoxProps, *>((props, forwardedRef) => {
  const { color, disabled, onChange, onValueChange, style, value, ...other } = props;

  function handleChange(event: Object) {
    const value = event.nativeEvent.target.checked;
    event.nativeEvent.value = value;
    onChange && onChange(event);
    onValueChange && onValueChange(value);
  }

  const fakeControl = (
    <View
      style={[
        styles.fakeControl,
        value && styles.fakeControlChecked,
        // custom color
        value && color && { backgroundColor: color, borderColor: color },
        disabled && styles.fakeControlDisabled,
        value && disabled && styles.fakeControlCheckedAndDisabled
      ]}
    />
  );

  const nativeControl = createElement('input', {
    checked: value,
    disabled: disabled,
    onChange: handleChange,
    ref: forwardedRef,
    style: [styles.nativeControl, styles.cursorInherit],
    type: 'checkbox'
  });

  return (
    <View {...other} style={[styles.root, style, disabled && styles.cursorDefault]}>
      {fakeControl}
      {nativeControl}
    </View>
  );
});

CheckBox.displayName = 'CheckBox';

const styles = StyleSheet.create({
  root: {
    cursor: 'pointer',
    height: 16,
    userSelect: 'none',
    width: 16
  },
  cursorDefault: {
    cursor: 'default'
  },
  cursorInherit: {
    cursor: 'inherit'
  },
  fakeControl: {
    alignItems: 'center',
    backgroundColor: '#fff',
    borderColor: '#657786',
    borderRadius: 2,
    borderStyle: 'solid',
    borderWidth: 2,
    height: '100%',
    justifyContent: 'center',
    width: '100%'
  },
  fakeControlChecked: {
    backgroundColor: '#009688',
    backgroundImage:
      'url("data:image/svg+xml;base64,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")',
    backgroundRepeat: 'no-repeat',
    borderColor: '#009688'
  },
  fakeControlDisabled: {
    borderColor: '#CCD6DD'
  },
  fakeControlCheckedAndDisabled: {
    backgroundColor: '#AAB8C2',
    borderColor: '#AAB8C2'
  },
  nativeControl: {
    ...StyleSheet.absoluteFillObject,
    height: '100%',
    margin: 0,
    opacity: 0,
    padding: 0,
    width: '100%'
  }
});

export default CheckBox;
