@use 'sass:map';
@use '@material/list/evolution-mixins';
@use '@material/checkbox/checkbox-theme' as mdc-checkbox-theme;
@use '@material/radio/radio-theme' as mdc-radio-theme;
@use '@material/list/list-theme' as mdc-list-theme;

@use '../core/style/sass-utils';
@use '../core/theming/theming';
@use '../core/theming/inspection';
@use '../core/theming/validation';
@use '../core/tokens/m2/mat/list' as tokens-mat-list;
@use '../core/tokens/m2/mdc/checkbox' as tokens-mdc-checkbox;
@use '../core/tokens/m2/mdc/radio' as tokens-mdc-radio;
@use '../core/tokens/m2/mdc/list' as tokens-mdc-list;
@use '../core/tokens/token-utils';
@use '../core/typography/typography';

@mixin base($theme) {
  // Add default values for tokens not related to color, typography, or density.
  @if inspection.get-theme-version($theme) == 1 {
    @include _theme-from-tokens(inspection.get-theme-tokens($theme, base));
  }
  @else {
    @include sass-utils.current-selector-or-root() {
      @include mdc-list-theme.theme(tokens-mdc-list.get-unthemable-tokens());
      @include token-utils.create-token-values(
        tokens-mat-list.$prefix, tokens-mat-list.get-unthemable-tokens());
    }
  }
}

@mixin color($theme) {
  @if inspection.get-theme-version($theme) == 1 {
    @include _theme-from-tokens(inspection.get-theme-tokens($theme, color));
  }
  @else {
    $mdc-list-color-tokens: tokens-mdc-list.get-color-tokens($theme);

    // Add values for MDC list tokens.
    @include sass-utils.current-selector-or-root() {
      @include mdc-list-theme.theme($mdc-list-color-tokens);
      @include token-utils.create-token-values(
        tokens-mat-list.$prefix, tokens-mat-list.get-color-tokens($theme));
    }

    .mdc-list-item__start,
    .mdc-list-item__end {
      @include mdc-radio-theme.theme(tokens-mdc-radio.get-color-tokens($theme, primary));
    }

    .mat-accent {
      .mdc-list-item__start,
      .mdc-list-item__end {
        @include mdc-radio-theme.theme(tokens-mdc-radio.get-color-tokens($theme, accent));
      }
    }

    .mat-warn {
      .mdc-list-item__start,
      .mdc-list-item__end {
        @include mdc-radio-theme.theme(tokens-mdc-radio.get-color-tokens($theme, warn));
      }
    }

    .mat-mdc-list-option {
      @include mdc-checkbox-theme.theme(tokens-mdc-checkbox.get-color-tokens($theme, primary));
    }
    .mat-mdc-list-option.mat-accent {
      @include mdc-checkbox-theme.theme(tokens-mdc-checkbox.get-color-tokens($theme, accent));
    }
    .mat-mdc-list-option.mat-warn {
      @include mdc-checkbox-theme.theme(tokens-mdc-checkbox.get-color-tokens($theme, warn));
    }

    // There is no token for activated color on nav list.
    // TODO(mmalerba): Add a token to MDC or make a custom one.
    .mat-mdc-list-base.mat-mdc-list-base {
      @include evolution-mixins.list-selected-ink-color(
          inspection.get-theme-color($theme, primary));
    }

    // TODO(mmalerba): Leaking styles from the old MDC list mixins used in other components can
    //  cause opacity issues, so we need this override for now. We can remove it when all
    //  Angular Material components stop using the old MDC mixins.
    .mat-mdc-list-base .mdc-list-item--disabled {
      .mdc-list-item__start,
      .mdc-list-item__content,
      .mdc-list-item__end {
        opacity: 1;
      }
    }
  }
}

@mixin density($theme) {
  @if inspection.get-theme-version($theme) == 1 {
    @include _theme-from-tokens(inspection.get-theme-tokens($theme, density));
  }
  @else {
    $density-scale: inspection.get-theme-density($theme);
    $mdc-list-density-tokens: tokens-mdc-list.get-density-tokens($theme);

    // Add values for MDC list tokens.
    @include sass-utils.current-selector-or-root() {
      @include mdc-list-theme.theme($mdc-list-density-tokens);
      @include token-utils.create-token-values(
        tokens-mat-list.$prefix, tokens-mat-list.get-density-tokens($theme));
    }

    .mdc-list-item__start,
    .mdc-list-item__end {
      @include mdc-radio-theme.theme(tokens-mdc-radio.get-density-tokens($theme));
    }

    // TODO(mmalerba): This is added to maintain the same style MDC used prior to the token-based
    //  API, to avoid screenshot diffs. We should remove it in favor of following MDC's current
    //  style, or add custom tokens for it.
    .mat-mdc-list-item {
      &.mdc-list-item--with-leading-avatar,
      &.mdc-list-item--with-leading-checkbox,
      &.mdc-list-item--with-leading-icon {
        &.mdc-list-item--with-one-line {
          height: map.get((
            0: 56px,
            -1: 52px,
            -2: 48px,
            -3: 44px,
            -4: 40px,
            -5: 40px,
          ), $density-scale);
        }

        &.mdc-list-item--with-two-lines {
          height: map.get((
            0: 72px,
            -1: 68px,
            -2: 64px,
            -3: 60px,
            -4: 56px,
            -5: 56px,
          ), $density-scale);
        }
      }
    }
  }
}

@mixin typography($theme) {
  @if inspection.get-theme-version($theme) == 1 {
    @include _theme-from-tokens(inspection.get-theme-tokens($theme, typography));
  }
  @else {
    $mdc-list-typography-tokens: tokens-mdc-list.get-typography-tokens($theme);

    // Add values for MDC list tokens.
    @include sass-utils.current-selector-or-root() {
      @include mdc-list-theme.theme($mdc-list-typography-tokens);
      @include token-utils.create-token-values(
        tokens-mat-list.$prefix, tokens-mat-list.get-typography-tokens($theme));
    }

    // MDC does not have tokens for the subheader.
    // TODO(mmalerba): Discuss with MDC about adding them, or create custom tokens.
    .mdc-list-group__subheader {
      font: inspection.get-theme-typography($theme, subtitle-1, font);
      letter-spacing: inspection.get-theme-typography($theme, subtitle-1, letter-spacing);
    }
  }
}

@mixin theme($theme) {
  @include theming.private-check-duplicate-theme-styles($theme, 'mat-list') {
    @if inspection.get-theme-version($theme) == 1 {
      @include _theme-from-tokens(inspection.get-theme-tokens($theme));
    }
    @else {
      @include base($theme);
      @if inspection.theme-has($theme, color) {
        @include color($theme);
      }
      @if inspection.theme-has($theme, density) {
        @include density($theme);
      }
      @if inspection.theme-has($theme, typography) {
        @include typography($theme);
      }
    }
  }
}

@mixin _theme-from-tokens($tokens) {
  @include validation.selector-defined(
      'Calls to Angular Material theme mixins with an M3 theme must be wrapped in a selector');
  @include mdc-list-theme.theme(token-utils.get-tokens-for($tokens, tokens-mdc-list.$prefix));

  $mat-list-tokens: token-utils.get-tokens-for($tokens, tokens-mat-list.$prefix);
  @include token-utils.create-token-values(tokens-mat-list.$prefix, $mat-list-tokens);
}