// generic drawing of more complex things

// provide font size in pt, with px fallback
@function pt($size: $root-font-size) {
  @return ($size * 0.75 / 1px) + pt;
}

// provide icon size in em, with px fallback
@function em($size: 16px) {
  @return ($size / $root-font-size) + em;
}

// Typography
// based on:
// https://material.io/guidelines/style/typography.html#typography-styles

@mixin font($size) {
  @if $size == display-4 {
    // font-family: $large-font-family;
    font-size: 112px;
    font-weight: 300;
    // line-height: 1;
  }

  @if $size == display-3 {
    // font-family: $large-font-family;
    font-size: 56px;
    font-weight: 400;
    // line-height: 1;
  }

  @if $size == display-2 {
    // font-family: $large-font-family;
    font-size: 45px;
    font-weight: 400;
    // line-height: 48px;
  }

  @if $size == display-1 {
    // font-family: $large-font-family;
    font-size: 34px;
    font-weight: 400;
    // line-height: 40px;
  }

  @if $size == headline {
    font-size: pt(24px);
    font-weight: 400;
    // line-height: 32px;
  }

  @if $size == title {
    font-size: pt(20px);
    font-weight: 500;
    // line-height: 1;
  }

  @if $size == subheading {
    font-size: pt($subheading-size);
    font-weight: 400;
    // line-height: 24px;
  }

  @if $size == body-2 {
    font-size: pt($root-font-size);
    font-weight: 500;
    // line-height: 24px;
  }

  @if $size == body-1 {
    font-size: pt($root-font-size);
    font-weight: 400;
    // line-height: 20px;
  }

  @if $size == caption {
    font-size: pt(12px);
    font-weight: 400;
    // line-height: 1;
  }

  @if $size == button {
    font-size: pt($root-font-size);
    font-weight: 500;
    // line-height: 20px;
  }
}


@mixin entry($t, $fc: $primary) {
//
// entry
//
// $t: entry type
// $fc: focus color
//

  @if $t == normal {
    transition-duration: $shorter_duration;
    background-color: if($fc == $primary, $fill, $inverse-fill);
    border-color: transparent;
    box-shadow: inset 0 -1px if($fc == $primary, $track, $fc);
  }

  @if $t == focus {
    border-color: transparent;
    box-shadow: inset 0 -2px $fc;
  }

  @if $t == hover {
    box-shadow: inset 0 -1px if($fc == $primary, $text, $fc);
  }

  @if $t == insensitive {
    color: $text-disabled;
    border-color: transparent;
    box-shadow: inset 0 -1px if($fc == $primary, $divider, $fc);
  }
}


@mixin button($t, $c: $surface, $tc: $text) {
//
// button
//
// $t: button type
// $c: base color
// $tc: text color
//

  @if $t == normal {
    color: $tc;
    background-color: $c;
    border-color: transparent;
    box-shadow: $shadow_1;
    text-shadow: none;
    icon-shadow: none;
    transition-duration: $shorter_duration;
  }

  @if $t == focus {
    color: $tc;
    text-shadow: none;
    icon-shadow: none;
    box-shadow: $shadow_2;
  }

  @if $t == hover {
    color: $tc;
    background-color: $c;
    border-color: transparent;
    box-shadow: $shadow_2;
    text-shadow: none;
    icon-shadow: none;
  }

  @if $t == active {
    color: $tc;
    background-color: mix($tc, $c, percentage(0.24));
    border-color: transparent;
    box-shadow: $shadow_2;
    text-shadow: none;
    icon-shadow: none;
    transition-duration: $longer_duration;
  }

  @if $t == insensitive {
    color: if($tc == $text, $text-disabled, $tc);
    background-color: if($c == $surface, $fill, $c);
    border-color: transparent;
    box-shadow: $shadow_0;
    text-shadow: none;
    icon-shadow: none;
  }

  @if $t == flat-normal {
    color: if($tc != $inverse-text, $text-secondary, $inverse-text-secondary);
    background-color: transparent;
    border-color: transparent;
    box-shadow: $shadow_0;
    text-shadow: none;
    icon-shadow: none;
    transition-duration: $shorter_duration;
  }

  @if $t == flat-focus {
    color: if($tc != $inverse-text, $text, $inverse-text);
    text-shadow: none;
    icon-shadow: none;
    box-shadow: $shadow_0;
  }

  @if $t == flat-hover {
    color: if($tc != $inverse-text, $text, $inverse-text);
    background-color: if($tc != $inverse-text, $overlay-hover, $inverse-overlay-hover);
    border-color: transparent;
    box-shadow: $shadow_0;
    text-shadow: none;
    icon-shadow: none;
  }

  @if $t == flat-active {
    color: if($tc != $inverse-text, $text, $inverse-text);
    background-color: if($tc != $inverse-text, $overlay-active, $inverse-overlay-active);
    border-color: transparent;
    box-shadow: $shadow_0;
    text-shadow: none;
    icon-shadow: none;
    transition-duration: $longer_duration;
  }

  @if $t == flat-insensitive {
    color: if($tc != $inverse-text, $text-secondary-disabled, $inverse-text-secondary-disabled);
    background-color: transparent;
    border-color: transparent;
    box-shadow: $shadow_0;
    text-shadow: none;
    icon-shadow: none;
  }
}