@use 'sass:map';
@use '../core/theming/theming';
@use '../core/tokens/m2-utils';
@use '../core/tokens/m3-utils';

@function get-tokens($theme) {
  $system: m2-utils.get-system($theme);
  $density-scale: theming.clamp-density(map.get($system, density-scale), -3);
  $touch-target-display: block;

  @if ($density-scale < -1) {
    $touch-target-display: none;
  }

  @return (
    base: (
      radio-disabled-selected-icon-opacity: 0.38,
      radio-disabled-unselected-icon-opacity: 0.38,
      // This is specified both here and in the density tokens, because it
      // determines the size of the radio button itself and there are internal
      // tests who don't configure the theme correctly.
      radio-state-layer-size: 40px,
      radio-touch-target-size: 48px,
    ),
    color: private-get-color-palette-color-tokens($theme, secondary),
    typography: (
      radio-label-text-font: map.get($system, body-medium-font),
      radio-label-text-line-height: map.get($system, body-medium-line-height),
      radio-label-text-size: map.get($system, body-medium-size),
      radio-label-text-tracking: map.get($system, body-medium-tracking),
      radio-label-text-weight: map.get($system, body-medium-weight)
    ),
    density: (
      radio-state-layer-size: map.get((
        0: 40px,
        -1: 36px,
        -2: 32px,
        -3: 28px,
      ), $density-scale),
      radio-touch-target-display: $touch-target-display,
    ),
  );
}

// Tokens that can be configured through Angular Material's color theming API.
@function private-get-color-palette-color-tokens($theme, $color-variant) {
  $system: m2-utils.get-system($theme);
  $system: m3-utils.replace-colors-with-variant($system, secondary, $color-variant);
  $disabled: m3-utils.color-with-opacity(map.get($system, on-surface), 38%);

  @return (
    radio-checked-ripple-color: map.get($system, secondary),
    radio-disabled-label-color: $disabled,
    radio-disabled-selected-icon-color: map.get($system, on-surface),
    radio-disabled-unselected-icon-color: map.get($system, on-surface),
    radio-label-text-color: map.get($system, on-surface),
    radio-ripple-color: map.get($system, on-surface),
    radio-selected-focus-icon-color: map.get($system, secondary),
    radio-selected-hover-icon-color: map.get($system, secondary),
    radio-selected-icon-color: map.get($system, secondary),
    radio-selected-pressed-icon-color: map.get($system, secondary),
    radio-unselected-focus-icon-color: map.get($system, on-surface),
    radio-unselected-hover-icon-color: map.get($system, on-surface),
    radio-unselected-icon-color: map.get($system, on-surface-variant),
    radio-unselected-pressed-icon-color: map.get($system, on-surface),
  );
}