@use "../../variables/typography" as typographyVars;
@use "../../tools/a11y";
@use "../../tools/borders";
@use "../../tools/colour";
@use "../../tools/spacing";
@use "../../tools/typography";

$code-block-top-bar-height: spacing.space(2);

.tna-code-block {
  @include spacing.space-above;

  position: relative;

  @include typography.font-size(16);
  line-height: 1.5;

  @include colour.colour-border("keyline", 1px);
  @include borders.rounded-border;

  &__pre {
    padding: spacing.space(1);

    overflow: auto;

    position: relative;

    border-radius: 0.1px;

    code[class*="language-"] {
      background: transparent;

      border: none;
    }
  }

  &__copyable,
  &[title] {
    padding-top: $code-block-top-bar-height;

    &::after {
      content: "";

      height: $code-block-top-bar-height;

      position: absolute;
      top: 0;
      right: 0;
      left: 0;
      z-index: 1;

      @include colour.tint;

      @include colour.on-high-contrast-and-forced-colours {
        @include colour.colour-border("keyline", 1px, solid, bottom);
      }
    }
  }

  &[title] {
    &::before {
      content: attr(title);

      margin-top: 0;

      padding: 0 spacing.space(7) 0 spacing.space(1);

      display: block;
      overflow: hidden;

      position: absolute;
      top: 0;
      right: 0;
      left: 0;
      z-index: 2;

      font-family: typographyVars.$code-font-family;
      line-height: $code-block-top-bar-height;
      text-overflow: ellipsis;
      text-wrap: nowrap;

      pointer-events: none;
    }
  }

  &__copy {
    position: absolute;
    top: 0;
    right: 0;
    z-index: 3;
  }

  code[class*="language-"],
  pre[class*="language-"] {
    color: #393a34;
    text-align: left;
    direction: ltr;
    word-break: normal;

    -moz-tab-size: 4;
    -o-tab-size: 4;
    tab-size: 4;
    white-space: pre;
    word-spacing: normal;

    -webkit-hyphens: none;
    -moz-hyphens: none;
    -ms-hyphens: none;
    hyphens: none;
  }

  pre[class*="language-"] {
    overflow: auto;

    background-color: #f5f2f0;

    @include a11y.focus-indicator-only-on-keyboard-focus;
  }

  .token.comment,
  .token.prolog,
  .token.doctype,
  .token.cdata {
    color: #6e6e5e;
  }

  .token.namespace {
    opacity: 0.7;
  }

  .token.string,
  .token.attr-value {
    color: #be0e5a;
  }

  .token.punctuation,
  .token.operator {
    color: #393a34;
  }

  .token.entity,
  .token.url,
  .token.symbol,
  .token.number,
  .token.boolean,
  .token.variable,
  .token.constant,
  .token.property,
  .token.regex,
  .token.inserted {
    color: #247a78;
  }

  .token.atrule,
  .token.keyword,
  .token.attr-name {
    color: #00759d;
  }

  .token.tag,
  .token.selector {
    color: #00009f;
  }

  .token.function,
  .token.deleted {
    color: #9a050f;
  }

  .token.important,
  .token.function,
  .token.bold {
    font-weight: bold;
  }

  .token.italic {
    font-style: italic;
  }

  @mixin dark-theme-code {
    code[class*="language-"],
    pre[class*="language-"] {
      color: #f8f8f2;
    }

    pre[class*="language-"] {
      background: #2b2b2b;
    }

    .token.comment,
    .token.prolog,
    .token.doctype,
    .token.cdata {
      color: #d4d0ab;
    }

    .token.punctuation {
      color: #fefefe;
    }

    .token.property,
    .token.tag,
    .token.constant,
    .token.symbol,
    .token.deleted {
      color: #ffa07a;
    }

    .token.boolean,
    .token.number {
      color: #00e0e0;
    }

    .token.selector,
    .token.attr-name,
    .token.string,
    .token.char,
    .token.builtin,
    .token.inserted {
      color: #abe338;
    }

    .token.operator,
    .token.entity,
    .token.url,
    .language-css .token.string,
    .style .token.string,
    .token.variable {
      color: #00e0e0;
    }

    .token.atrule,
    .token.attr-value,
    .token.function {
      color: #ffd700;
    }

    .token.keyword {
      color: #00e0e0;
    }

    .token.regex,
    .token.important {
      color: #ffd700;
    }
  }

  .tna-template--dark-theme & {
    @include dark-theme-code;
  }

  .tna-template--system-theme & {
    @media (prefers-color-scheme: dark) {
      @include dark-theme-code;
    }
  }
}