// FakeMUI Theme - Material Design 3 System CSS Variables
// =====================================================
// This file generates all --mat-sys-* CSS custom properties from the official
// Google Material Design 3 token system (from scss/m3-scss/).
//
// Usage: Import this file once at the root of your application
// @use 'fakemui/scss/theme';

@use 'sass:map';
@use 'm3-scss/material/core/tokens/m3/md-sys-color' as color;
@use 'm3-scss/material/core/tokens/m3/md-sys-shape' as shape;
@use 'm3-scss/material/core/tokens/m3/md-sys-state' as state;
@use 'm3-scss/material/core/tokens/m3/md-sys-elevation' as elevation;
@use 'm3-scss/material/core/tokens/m3/md-sys-typescale' as typescale;
@use 'm3-scss/material/core/theming/palettes' as palettes;
@use 'm3-scss/material/core/style/elevation' as elevation-utils;

// Angular Material M3 Component Styles (Global)
// Some Angular Material SCSS has element selectors that CSS modules doesn't allow.
// These must be loaded globally so React components inherit the styles.
@use 'm3-scss/material/list/list.module';
@use 'm3-scss/material/menu/menu.module';

// ============================================
// Configuration (customizable via @use with())
// ============================================

// Primary palette - defaults to Violet
$primary-palette: palettes.$violet-palette !default;
// Tertiary palette - defaults to Cyan for contrast
$tertiary-palette: palettes.$cyan-palette !default;

// Typography configuration
$typography-config: (
  plain: ('Inter', sans-serif),
  brand: ('Bricolage Grotesque', sans-serif),
  bold: 700,
  medium: 500,
  regular: 400,
) !default;

// ============================================
// Build Color Palettes
// ============================================

$palettes: (
  primary: map.remove($primary-palette, neutral, neutral-variant, secondary),
  secondary: map.get($primary-palette, secondary),
  tertiary: map.remove($tertiary-palette, neutral, neutral-variant, secondary, error),
  neutral: map.get($primary-palette, neutral),
  neutral-variant: map.get($primary-palette, neutral-variant),
  error: map.get($primary-palette, error),
);

// Generate light and dark color tokens from official M3 color system
$light-colors: color.md-sys-color-values-light($palettes);
$dark-colors: color.md-sys-color-values-dark($palettes);

// Get official M3 system tokens
$shape-values: shape.md-sys-shape-values();
$state-values: state.md-sys-state-values();
$elevation-values: elevation.md-sys-elevation-values();
$typography-values: typescale.md-sys-typescale-values($typography-config);

// ============================================
// CSS Custom Properties Generation
// ============================================

:root {
  // Enable color-scheme for native dark mode support
  color-scheme: light dark;

  // ============================================
  // Shape Tokens (M3 Shape System)
  // ============================================
  @each $name, $value in $shape-values {
    --mat-sys-#{$name}: #{$value};
  }

  // ============================================
  // State Layer Tokens (M3 State System)
  // ============================================
  @each $name, $value in $state-values {
    --mat-sys-#{$name}: #{$value};
  }

  // ============================================
  // Elevation Tokens (M3 Elevation System)
  // Generates proper box-shadow values from elevation levels
  // ============================================
  $shadow-color: map.get($palettes, neutral, 0);
  @each $name, $level in $elevation-values {
    --mat-sys-#{$name}: #{elevation-utils.get-box-shadow($level, $shadow-color)};
  }

  // ============================================
  // Typography Tokens (M3 Typography System)
  // ============================================
  @each $name, $value in $typography-values {
    --mat-sys-#{$name}: #{$value};
  }

  // ============================================
  // Motion Tokens (M3 Motion System)
  // ============================================
  // Duration tokens
  --mat-sys-motion-duration-short1: 50ms;
  --mat-sys-motion-duration-short2: 100ms;
  --mat-sys-motion-duration-short3: 150ms;
  --mat-sys-motion-duration-short4: 200ms;
  --mat-sys-motion-duration-medium1: 250ms;
  --mat-sys-motion-duration-medium2: 300ms;
  --mat-sys-motion-duration-medium3: 350ms;
  --mat-sys-motion-duration-medium4: 400ms;
  --mat-sys-motion-duration-long1: 450ms;
  --mat-sys-motion-duration-long2: 500ms;
  --mat-sys-motion-duration-long3: 550ms;
  --mat-sys-motion-duration-long4: 600ms;
  --mat-sys-motion-duration-extra-long1: 700ms;
  --mat-sys-motion-duration-extra-long2: 800ms;
  --mat-sys-motion-duration-extra-long3: 900ms;
  --mat-sys-motion-duration-extra-long4: 1000ms;

  // Easing tokens
  --mat-sys-motion-easing-standard: cubic-bezier(0.2, 0, 0, 1);
  --mat-sys-motion-easing-standard-decelerate: cubic-bezier(0, 0, 0, 1);
  --mat-sys-motion-easing-standard-accelerate: cubic-bezier(0.3, 0, 1, 1);
  --mat-sys-motion-easing-emphasized: cubic-bezier(0.2, 0, 0, 1);
  --mat-sys-motion-easing-emphasized-decelerate: cubic-bezier(0.05, 0.7, 0.1, 1);
  --mat-sys-motion-easing-emphasized-accelerate: cubic-bezier(0.3, 0, 0.8, 0.15);
  --mat-sys-motion-easing-legacy: cubic-bezier(0.4, 0, 0.2, 1);
  --mat-sys-motion-easing-legacy-decelerate: cubic-bezier(0, 0, 0.2, 1);
  --mat-sys-motion-easing-legacy-accelerate: cubic-bezier(0.4, 0, 1, 1);
  --mat-sys-motion-easing-linear: cubic-bezier(0, 0, 1, 1);

  // ============================================
  // Color Tokens (M3 Color System) - Light Theme Default
  // ============================================
  @each $name, $value in $light-colors {
    --mat-sys-#{$name}: #{$value};
  }

  // Legacy compatibility tokens (mapped from M3 system)
  --mat-sys-accent: var(--mat-sys-primary);
  --mat-sys-on-accent: var(--mat-sys-on-primary);
}

// ============================================
// Dark Theme - Auto (prefers-color-scheme)
// ============================================
@media (prefers-color-scheme: dark) {
  :root {
    @each $name, $value in $dark-colors {
      --mat-sys-#{$name}: #{$value};
    }
  }
}

// ============================================
// Dark Theme - Manual Override Classes
// ============================================
[data-theme="dark"],
.dark-theme,
.dark {
  @each $name, $value in $dark-colors {
    --mat-sys-#{$name}: #{$value};
  }
}

// ============================================
// Light Theme - Manual Override Classes
// ============================================
[data-theme="light"],
.light-theme,
.light {
  @each $name, $value in $light-colors {
    --mat-sys-#{$name}: #{$value};
  }
}