//
// Copyright 2016 Google 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.
//

// Selector '.mdc-*' should only be used in this project.
// stylelint-disable selector-class-pattern

@use 'sass:math';
@use '@material/elevation/mixins' as elevation-mixins;
@use '@material/feature-targeting/feature-targeting';
@use '@material/ripple/ripple';
@use '@material/ripple/ripple-theme';
@use '@material/rtl/mixins' as rtl-mixins;
@use '@material/theme/theme-color';
@use '@material/theme/theme';
@use '@material/touch-target/mixins' as touch-target-mixins;
@use '@material/typography/typography';
@use '@material/shape/mixins' as shape-mixins;
@use '@material/shape/functions' as shape-functions;
@use '@material/density/functions' as density-functions;
@use './variables';
@use '@material/elevation/functions' as elevation-functions;

$ripple-target: '.mdc-button__ripple';

@mixin core-styles($query: feature-targeting.all()) {
  @include without-ripple($query);
  @include ripple($query);
}

// This API is intended for use by frameworks that may want to separate the ripple-related styles from the other
// button styles. It is recommended that most users use `mdc-button-core-styles` instead.
@mixin without-ripple($query: feature-targeting.all()) {
  $feat-color: feature-targeting.create-target($query, color);
  $feat-structure: feature-targeting.create-target($query, structure);

  @include touch-target-mixins.wrapper($query); // COPYBARA_COMMENT_THIS_LINE
  // prettier-ignore
  @include elevation-mixins.overlay-common($query); // COPYBARA_COMMENT_THIS_LINE

  // postcss-bem-linter: define button
  .mdc-button {
    @include base_($query);
    @include shape-radius(variables.$shape-radius, $query: $query);
    @include density(variables.$density-scale, $query: $query);
    @include container-fill-color(transparent, $query);
    @include disabled-container-fill-color(transparent, $query);
    // The icon CSS class overrides styles defined in the .material-icons CSS
    // class, which is loaded separately so the order of CSS definitions is not
    // guaranteed. Therefore, increase specifity by nesting this class to ensure
    // overrides apply.
    .mdc-button__icon {
      @include feature-targeting.targets($feat-structure) {
        @include icon_;
      }
    }

    .mdc-button__touch {
      @include touch-target-mixins.touch-target($query: $query);
    }

    @include ink-color(primary, $query);
    @include disabled-ink-color(variables.$disabled-ink-color, $query);
  }

  .mdc-button__label + .mdc-button__icon {
    @include feature-targeting.targets($feat-structure) {
      @include icon-trailing_;
    }
  }

  // stylelint-disable-next-line selector-no-qualifying-type
  svg.mdc-button__icon {
    @include feature-targeting.targets($feat-structure) {
      @include icon-svg_;
    }
  }

  .mdc-button--raised,
  .mdc-button--unelevated,
  .mdc-button--outlined {
    .mdc-button__icon {
      @include feature-targeting.targets($feat-structure) {
        // Icons inside contained buttons have different styles due to increased button padding
        @include icon-contained_;
      }
    }

    .mdc-button__label + .mdc-button__icon {
      @include feature-targeting.targets($feat-structure) {
        @include icon-contained-trailing_;
      }
    }
  }

  .mdc-button--raised,
  .mdc-button--unelevated {
    @include filled_($query);
  }

  .mdc-button--raised {
    @include raised_($query);
  }

  .mdc-button--outlined {
    @include outlined_($query);
  }

  .mdc-button--touch {
    @include touch-target-mixins.margin(
      $component-height: variables.$height,
      $query: $query
    );
  }
  // postcss-bem-linter: end
}

// This API is intended for use by frameworks that may want to separate the ripple-related styles from the other
// button styles. It is recommended that most users use `mdc-button-core-styles` instead.
@mixin ripple($query: feature-targeting.all()) {
  $feat-structure: feature-targeting.create-target($query, structure);

  @include ripple.common($query); // COPYBARA_COMMENT_THIS_LINE

  .mdc-button {
    @include ripple.surface($query: $query, $ripple-target: $ripple-target);
    @include ripple.radius-bounded(
      $query: $query,
      $ripple-target: $ripple-target
    );
    @include ripple-states($color: primary, $query: $query);

    #{$ripple-target} {
      @include feature-targeting.targets($feat-structure) {
        position: absolute;
        // Ripple needs content-box as the box sizing and box-sizing: border-box
        // is often set as a default, so we override that here.
        box-sizing: content-box;
        width: 100%;
        height: 100%;
        overflow: hidden;
      }
    }

    // Ripple targets inside outlined buttons set their own `top`/`left`,
    // depending on the border width.
    &:not(.mdc-button--outlined) #{$ripple-target} {
      @include feature-targeting.targets($feat-structure) {
        top: 0;
        left: 0;
      }
    }
  }

  .mdc-button--raised,
  .mdc-button--unelevated {
    @include ripple-states($color: on-primary, $query: $query);
  }
}

///
/// Sets ripple color for button.
///
@mixin ripple-states($color, $query: feature-targeting.all()) {
  @include ripple-theme.states(
    $color: $color,
    $query: $query,
    $ripple-target: $ripple-target
  );
}

@mixin filled-accessible(
  $container-fill-color,
  $query: feature-targeting.all()
) {
  $fill-tone: theme-color.tone($container-fill-color);

  @include container-fill-color($container-fill-color, $query);

  @if ($fill-tone == 'dark') {
    @include ink-color(text-primary-on-dark, $query);
    @include ripple-states($color: text-primary-on-dark, $query: $query);
  } @else {
    @include ink-color(text-primary-on-light, $query);
    @include ripple-states($color: text-primary-on-light, $query: $query);
  }
}

///
/// Sets the container fill color to the given color for an enabled button.
/// @param {Color} $color - The desired container fill color.
///
@mixin container-fill-color($color, $query: feature-targeting.all()) {
  // :not(:disabled) is used to support link styled as button
  // as link does not support :enabled style
  &:not(:disabled) {
    @include container-fill-color_($color, $query: $query);
  }
}

///
/// Sets the container fill color to the given color for a disabled button.
/// @param {Color} $color - The desired container fill color.
///
@mixin disabled-container-fill-color($color, $query: feature-targeting.all()) {
  &:disabled {
    @include container-fill-color_($color, $query: $query);
  }
}

///
/// Sets the outline color to the given color for an enabled button.
/// @param {Color} $color - The desired outline color.
///
@mixin outline-color($color, $query: feature-targeting.all()) {
  &:not(:disabled) {
    @include outline-color_($color, $query: $query);
  }
}

///
/// Sets the outline color to the given color for a disabled button.
/// @param {Color} $color - The desired outline color.
///
@mixin disabled-outline-color($color, $query: feature-targeting.all()) {
  &:disabled {
    @include outline-color_($color, $query: $query);
  }
}

///
/// Sets the icon color to the given color for an enabled button.
/// @param {Color} $color - The desired icon color.
///
@mixin icon-color($color, $query: feature-targeting.all()) {
  &:not(:disabled) {
    @include icon-color_($color, $query: $query);
  }
}

///
/// Sets the icon color to the given color for a disabled button.
/// @param {Color} $color - The desired icon color.
///
@mixin disabled-icon-color($color, $query: feature-targeting.all()) {
  &:disabled {
    @include icon-color_($color, $query: $query);
  }
}

///
/// Sets the ink color to the given color for an enabled button,
/// and sets the icon color to the given color unless `mdc-button-icon-color`
/// is also used.
/// @param {Color} $color - The desired ink color.
///
@mixin ink-color($color, $query: feature-targeting.all()) {
  &:not(:disabled) {
    @include ink-color_($color, $query: $query);
  }
}

///
/// Sets the ink color to the given color for a disabled button,
/// and sets the icon color to the given color unless `mdc-button-icon-color`
/// is also used.
/// @param {Color} $color - The desired ink color.
///
@mixin disabled-ink-color($color, $query: feature-targeting.all()) {
  &:disabled {
    @include ink-color_($color, $query: $query);
  }
}

///
/// Sets density scale for button.
///
/// @param {Number | String} $density-scale - Density scale value for component. Supported density scale values `-3`,
///     `-2`, `-1`, `0`.
///
@mixin density($density-scale, $query: feature-targeting.all()) {
  $height: density-functions.prop-value(
    $density-config: variables.$density-config,
    $density-scale: $density-scale,
    $property-name: height,
  );

  @include height($height, $query: $query);

  @if $density-scale != 0 {
    @include touch-target-reset_($query: $query);
  }
}

///
/// Resets touch target-related styles. This is called from the density mixin to
/// automatically remove the increased touch target, since dense components
/// don't have the same default a11y requirements.
/// @access private
///
@mixin touch-target-reset_($query: feature-targeting.all()) {
  $feat-structure: feature-targeting.create-target($query, structure);

  @include feature-targeting.targets($feat-structure) {
    margin-top: 0;
    margin-bottom: 0;
  }

  .mdc-button__touch {
    @include feature-targeting.targets($feat-structure) {
      display: none;
    }
  }
}

///
/// Sets custom height for button.
/// @param {Number} $height - Height of button in `px`.
///
@mixin height($height, $query: feature-targeting.all()) {
  $feat-structure: feature-targeting.create-target($query, structure);

  @include feature-targeting.targets($feat-structure) {
    height: $height;
  }
}

@mixin shape-radius(
  $radius,
  $rtl-reflexive: false,
  $density-scale: variables.$density-scale,
  $query: feature-targeting.all()
) {
  $height: density-functions.prop-value(
    $density-config: variables.$density-config,
    $density-scale: $density-scale,
    $property-name: height,
  );

  @include shape-mixins.radius(
    $radius,
    $rtl-reflexive,
    $component-height: $height,
    $query: $query
  );

  #{$ripple-target} {
    @include shape-mixins.radius(
      $radius,
      $rtl-reflexive,
      $component-height: $height,
      $query: $query
    );
  }
}

///
/// Sets horizontal padding to the given number.
/// @param {Number} $padding
///
@mixin horizontal-padding($padding, $query: feature-targeting.all()) {
  $feat-structure: feature-targeting.create-target($query, structure);

  @include feature-targeting.targets($feat-structure) {
    // $padding should be a single value; enforce it by specifying all 4 sides in the output
    padding: 0 $padding 0 $padding;
  }
}

@mixin outline-width(
  $outline-width,
  $padding: variables.$contained-horizontal-padding,
  $query: feature-targeting.all()
) {
  $feat-structure: feature-targeting.create-target($query, structure);
  // Note: Adjust padding to maintain consistent width with non-outlined buttons
  $padding-value: math.max($padding - $outline-width, 0);

  @include horizontal-padding($padding-value, $query);

  @include feature-targeting.targets($feat-structure) {
    border-width: $outline-width;
  }

  #{$ripple-target} {
    @include feature-targeting.targets($feat-structure) {
      top: -$outline-width;
      left: -$outline-width;
      border: $outline-width solid transparent;
    }
  }

  .mdc-button__touch {
    @include feature-targeting.targets($feat-structure) {
      left: -$outline-width;
      width: calc(100% + 2 * #{$outline-width});
    }
  }
}

///
/// Sets the button label to overflow as ellipsis
///
@mixin label-overflow-ellipsis($query: feature-targeting.all()) {
  .mdc-button__label {
    @include typography.overflow-ellipsis($query: $query);
  }
}

@mixin base_($query) {
  $feat-color: feature-targeting.create-target($query, color);
  $feat-structure: feature-targeting.create-target($query, structure);

  @include typography.typography(button, $query);
  @include horizontal-padding(variables.$horizontal-padding, $query);
  @include elevation-mixins.overlay-surface-position($query: $query);
  @include elevation-mixins.overlay-dimensions(100%, $query: $query);

  @include feature-targeting.targets($feat-structure) {
    display: inline-flex;
    // position: relative; already set in mdc-elevation-overlay-surface-position
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    min-width: 64px;
    border: none;
    outline: none;
    /* @alternate */
    line-height: inherit;
    user-select: none;
    -webkit-appearance: none;
    // Even though `visible` is the default, IE 11 computes the property as
    // `hidden` in some cases, unless it's explicitly defined here.
    overflow: visible;
    vertical-align: middle;
  }

  &::-moz-focus-inner {
    @include feature-targeting.targets($feat-structure) {
      padding: 0;
      border: 0;
    }
  }

  // postcss-bem-linter: ignore
  &:active {
    @include feature-targeting.targets($feat-structure) {
      outline: none;
    }
  }

  &:hover {
    @include feature-targeting.targets($feat-structure) {
      cursor: pointer;
    }
  }

  &:disabled {
    @include feature-targeting.targets($feat-structure) {
      cursor: default;
      pointer-events: none;
    }
  }
}

@mixin icon_ {
  @include rtl-mixins.reflexive-box(margin, right, 8px);

  display: inline-block;
  width: 18px;
  height: 18px;
  font-size: 18px;
  vertical-align: top;
}

@mixin icon-trailing_ {
  @include rtl-mixins.reflexive-box(margin, left, 8px);
}

@mixin icon-svg_ {
  fill: currentColor;
}

@mixin icon-contained_ {
  @include rtl-mixins.reflexive-property(margin, -4px, 8px);
}

@mixin icon-contained-trailing_ {
  @include rtl-mixins.reflexive-property(margin, 8px, -4px);
}

@mixin outlined_($query) {
  $feat-structure: feature-targeting.create-target($query, structure);

  @include outline-width(variables.$outlined-border-width, $query: $query);
  @include outline-color(variables.$outline-color, $query);
  @include disabled-outline-color(variables.$disabled-container-color, $query);

  @include feature-targeting.targets($feat-structure) {
    border-style: solid;
  }
}

@mixin filled_($query) {
  @include horizontal-padding(variables.$contained-horizontal-padding, $query);
  @include container-fill-color(primary, $query);
  @include ink-color(on-primary, $query);
  @include disabled-container-fill-color(
    variables.$disabled-container-color,
    $query
  );
  @include disabled-ink-color(variables.$disabled-ink-color, $query);
}

@mixin raised_($query) {
  $feat-animation: feature-targeting.create-target($query, animation);
  $feat-color: feature-targeting.create-target($query, color);

  @include elevation-mixins.elevation(2, $query: $query);

  &:hover,
  &:focus {
    @include elevation-mixins.elevation(4, $query: $query);
  }

  &:active {
    @include elevation-mixins.elevation(8, $query: $query);
  }

  &:disabled {
    @include elevation-mixins.elevation(0, $query: $query);
  }

  @include feature-targeting.targets($feat-animation) {
    transition: elevation-functions.transition-value();
  }
}

///
/// Sets the container fill color to the given color. This mixin should be
/// wrapped in a selector that qualifies button state.
/// @access private
///
@mixin container-fill-color_($color, $query: feature-targeting.all()) {
  $feat-color: feature-targeting.create-target($query, color);

  @include feature-targeting.targets($feat-color) {
    @include theme.prop(background-color, $color);
  }
}

///
/// Sets the outline color to the given color. This mixin should be
/// wrapped in a selector that qualifies button state.
/// @access private
///
@mixin outline-color_($color, $query: feature-targeting.all()) {
  $feat-color: feature-targeting.create-target($query, color);

  @include feature-targeting.targets($feat-color) {
    @include theme.prop(border-color, $color);
  }
}

///
/// Sets the icon color to the given color. This mixin should be
/// wrapped in a selector that qualifies button state.
/// @access private
///
@mixin icon-color_($color, $query: feature-targeting.all()) {
  $feat-color: feature-targeting.create-target($query, color);

  .mdc-button__icon {
    @include feature-targeting.targets($feat-color) {
      @include theme.prop(color, $color);
    }
  }
}

///
/// Sets the ink color to the given color. This mixin should be
/// wrapped in a selector that qualifies button state.
/// @access private
///
@mixin ink-color_($color, $query: feature-targeting.all()) {
  $feat-color: feature-targeting.create-target($query, color);

  @include feature-targeting.targets($feat-color) {
    @include theme.prop(color, $color);
  }
}