//
// Copyright 2017 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.
//

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

@use 'sass:map';
@use 'sass:string';
@use './../feature-targeting/feature-targeting';
@use './../theme/theme';
@use './../theme/theme-color';
@use './../theme/keys';

$baseline-buffer-color: #e6e6e6 !default;
$height: 4px;

$custom-property-prefix: 'linear-progress';

$light-theme: (
  active-indicator-color: theme-color.$primary,
  track-color: $baseline-buffer-color,
  track-height: 4px,
);

@mixin theme($theme) {
  @include theme.validate-theme($light-theme, $theme);
  @include keys.declare-custom-properties(
    $theme,
    $prefix: $custom-property-prefix
  );
}

@mixin theme-styles($theme) {
  @include theme.validate-theme-styles($light-theme, $theme);

  $theme: keys.create-theme-properties(
    $theme,
    $prefix: $custom-property-prefix
  );

  @include bar-color(map.get($theme, active-indicator-color));
  @include buffer-color(map.get($theme, track-color));
  @include track-height(map.get($theme, track-height));
  // TODO(b/155129310): Add styles for 4-color linear progress once this variant
  // is supported.
}

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

  .mdc-linear-progress__bar-inner {
    @include feature-targeting.targets($feat-color) {
      // Border is used rather than background-color to ensure that the
      // bar is visible in Windows High Contrast Mode.
      @include theme.property(border-color, $color);
    }
  }
}

@mixin buffer-color($color, $query: feature-targeting.all()) {
  // We need to escape the '#' character as "%23" for SVG because '#' is a reserved character in URIs.
  $color-value-for-css: theme-color.prop-value($color);
  $color-value-for-svg: str-replace_(
    string.unquote('#{$color-value-for-css}'),
    '#',
    '%23'
  );
  $feat-color: feature-targeting.create-target($query, color);

  .mdc-linear-progress__buffer-dots {
    @include feature-targeting.targets($feat-color) {
      // stylelint-disable function-url-quotes -- SVG data URI
      // SVG is optimized for data URI (https://codepen.io/tigt/post/optimizing-svgs-in-data-uris)
      @include theme.property(
        background-image,
        url("data:image/svg+xml,%3Csvg version='1.1' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' enable-background='new 0 0 5 2' xml:space='preserve' viewBox='0 0 5 2' preserveAspectRatio='none slice'%3E%3Ccircle cx='1' cy='1' r='1' fill='color-value-for-svg'/%3E%3C/svg%3E"),
        $replace: (color-value-for-svg: $color-value-for-svg)
      );
      // stylelint-enable function-url-quotes
    }
  }

  .mdc-linear-progress__buffer-bar {
    @include feature-targeting.targets($feat-color) {
      @include theme.property(background-color, $color-value-for-css);
    }
  }
}

@mixin track-height($height, $query: feature-targeting.all()) {
  $feat-structure: feature-targeting.create-target($query, structure);
  .mdc-linear-progress {
    @include feature-targeting.targets($feat-structure) {
      @include theme.property(height, $height);
    }

    &__bar-inner {
      @include feature-targeting.targets($feat-structure) {
        @include theme.property(border-top-width, $height);
      }
    }

    &__buffer-dots {
      @include feature-targeting.targets($feat-structure) {
        @include theme.property(
          background-size,
          10px height,
          $replace: (height: $height)
        );
      }
    }
  }
}

// Based on https://css-tricks.com/snippets/sass/str-replace-function/
@function str-replace_($string, $search, $replace) {
  $index: string.index($string, $search);

  @if $index {
    $head: string.slice($string, 1, $index - 1);
    $tail: str-replace_(
      string.slice($string, $index + string.length($search)),
      $search,
      $replace
    );

    @return $head + $replace + $tail;
  }

  @return $string;
}