/*
 * The MIT License (MIT)
 *
 * Copyright (c) 2015 - present Instructure, Inc.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

import type { TabsPanelTheme } from '@instructure/shared-types'
import type { TabsPanelProps, TabsPanelStyle } from './props'

/**
 * ---
 * private: true
 * ---
 * Generates the style object from the theme and provided additional information
 * @param  {Object} componentTheme The theme variable object.
 * @param  {Object} props the props of the component, the style is applied to
 * @param  {Object} state the state of the component, the style is applied to
 * @return {Object} The final style object, which will be used in the component
 */
const generateStyle = (
  componentTheme: TabsPanelTheme,
  props: TabsPanelProps,
  state: { isHidden: boolean }
): TabsPanelStyle => {
  const { maxHeight, isSelected } = props
  const { isHidden } = state

  return {
    panel: {
      label: 'panel',
      boxSizing: 'border-box',
      flexShrink: 0,
      flexGrow: 0,
      fontFamily: componentTheme.fontFamily,
      fontWeight: componentTheme.fontWeight,
      lineHeight: componentTheme.lineHeight,
      fontSize: componentTheme.fontSize,
      ...(isSelected && {
        flexGrow: 1,
        height: '100%'
      }),
      ...(isHidden && {
        display: 'none'
      }),
      '&:focus': {
        outlineColor: componentTheme.focusOutlineColor
      }
    },
    content: {
      label: 'panel__content',
      boxSizing: 'border-box',
      width: '100%',
      height: '100%',
      borderWidth: componentTheme.borderWidth,
      borderStyle: componentTheme.borderStyle,
      background: componentTheme.background,
      borderColor: componentTheme.borderColor,
      color: componentTheme.color,
      borderLeft: 'none',
      borderRight: 'none',
      borderBottom: 'none',
      // we exposed this so in some use cases it can be set to "visible",
      // e.g. when a 100% width button's focus ring would get cropped
      overflowY: componentTheme.defaultOverflowY,
      ...(maxHeight && { overflow: 'auto' })
    }
  }
}

export default generateStyle