@use 'sass:color';
@use 'sass:map';
@use 'sass:meta';
@use '@angular/material' as mat;
@use '../../token-definition';

// The prefix used to generate the fully qualified name for tokens in this file.
$prefix: (mtx, loader);

// Tokens that can't be configured through Angular Material's current theming API,
// but may be in a future version of the theming API.
@function get-unthemable-tokens() {
  @return ();
}

// Tokens that can be configured through Angular Material's color theming API.
@function get-color-tokens($theme) {
  $background-color: mat.get-theme-color($theme, background, background);

  @return (
    backdrop-background-color: mat.private-safe-color-change($background-color, $alpha: .75),
  );
}

// Tokens that can be configured through Angular Material's typography theming API.
@function get-typography-tokens($theme) {
  @return ();
}

// Tokens that can be configured through Angular Material's density theming API.
@function get-density-tokens($theme) {
  @return ();
}

// Combines the tokens generated by the above functions into a single map with placeholder values.
// This is used to create token slots.
@function get-token-slots() {
  @return mat.private-deep-merge-all(
    get-unthemable-tokens(),
    get-color-tokens(token-definition.$placeholder-color-config),
    get-typography-tokens(token-definition.$placeholder-typography-config),
    get-density-tokens(token-definition.$placeholder-density-config)
  );
}