/*
 * Copyright 2020 Adobe. All rights reserved.
 * This file is licensed to you under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License. You may obtain a copy
 * of the License at http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under
 * the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
 * OF ANY KIND, either express or implied. See the License for the specific language
 * governing permissions and limitations under the License.
 */

import type { AriaSwitchProps } from '@react-types/switch';
import type { RefObject } from 'react';
import type { ToggleState } from '@react-stately/toggle';
import { useToggle } from '@react-native-aria/toggle';
import type { AccessibilityProps, AccessibilityRole } from 'react-native';
import { mergeProps } from '@react-aria/utils';

export interface SwitchAria {
  /** Props for the input element. */
  inputProps: any;
}

/**
 * Provides the behavior and accessibility implementation for a switch component.
 * A switch is similar to a checkbox, but represents on/off values as opposed to selection.
 * @param props - Props for the switch.
 * @param state - State for the switch, as returned by `useToggleState`.
 * @param ref - Ref to the HTML input element.
 */
export function useSwitch(
  props: AriaSwitchProps & AccessibilityProps,
  state: ToggleState,
  ref: RefObject<HTMLInputElement>
): SwitchAria {
  let { inputProps } = useToggle(props, state, ref);
  let { isSelected } = state;

  return {
    inputProps: mergeProps(inputProps, {
      'role': 'switch' as AccessibilityRole,
      'checked': isSelected,
      'accessible': true,
      'aria-checked': isSelected,
      'aria-disabled': props.isDisabled,
      'aria-readonly': props.isReadOnly,
    }),
  };
}