interface IllustrationAsset {
  id: string
  category: 'hero' | 'feature' | 'empty-state' | 'onboarding' | 'error' | 'success'
  style: 'outlined' | 'filled' | 'minimal' | 'detailed' | 'flat' | '3d'
  formats: ('svg' | 'png' | 'webp' | 'ai' | 'figma')[]
  license: 'commercial' | 'personal' | 'enterprise'
  metadata: {
    colors: string[]
    tags: string[]
    dimensions: { width: number; height: number }
    fileSize: number
    collection: string
    artist: string
    createdAt: Date
  }
}
class AssetLibraryManager {
  private assets = new Map()
  private collections = new Map()
  private cache = new LRUCache(100)
  async importAsset(asset: IllustrationAsset): Promise {
    // Validate asset metadata
    this.validateAsset(asset)
    // Optimize file formats
    const optimizedAsset = await this.optimizeAsset(asset)
    // Generate responsive variants
    await this.generateVariants(optimizedAsset)
    // Update search index
    await this.indexAsset(optimizedAsset)
    this.assets.set(asset.id, optimizedAsset)
    // Organize into collections
    const collection = this.collections.get(asset.metadata.collection) || []
    collection.push(optimizedAsset)
    this.collections.set(asset.metadata.collection, collection)
  }
  async getAsset(id: string, format: string = 'svg'): Promise {
    const cacheKey = ${id}-${format}
    // Check cache first
    if (this.cache.has(cacheKey)) {
      return this.cache.get(cacheKey)!
    }
    const asset = this.assets.get(id)
    if (!asset) throw new Error(Asset not found: ${id})
    const buffer = await this.loadAssetFile(asset, format)
    this.cache.set(cacheKey, buffer)
    return buffer
  }
  async searchAssets(query: {
    tags?: string[]
    category?: string
    style?: string
    colors?: string[]
  }): Promise {
    return Array.from(this.assets.values()).filter(asset => {
      if (query.tags && !query.tags.some(tag => asset.metadata.tags.includes(tag))) {
        return false
      }
      if (query.category && asset.category !== query.category) {
        return false
      }
      if (query.style && asset.style !== query.style) {
        return false
      }
      if (query.colors && !this.hasMatchingColors(asset, query.colors)) {
        return false
      }
      return true
    })
  }
  private async optimizeAsset(asset: IllustrationAsset): Promise {
    // SVG optimization
    if (asset.formats.includes('svg')) {
      await this.optimizeSVG(asset)
    }
    // PNG compression
    if (asset.formats.includes('png')) {
      await this.compressPNG(asset)
    }
    // WebP generation
    if (!asset.formats.includes('webp')) {
      await this.generateWebP(asset)
      asset.formats.push('webp')
    }
    return asset
  }
  private async generateVariants(asset: IllustrationAsset): Promise {
    const sizes = [
      { name: 'thumbnail', width: 150, height: 150 },
      { name: 'small', width: 400, height: 400 },
      { name: 'medium', width: 800, height: 800 },
      { name: 'large', width: 1600, height: 1600 }
    ]
    for (const size of sizes) {
      await this.generateSizedVariant(asset, size)
    }
  }
}

// Design system token architecture
interface DesignTokens {
  colors: {
    primary: ColorScale
    secondary: ColorScale
    neutral: ColorScale
    semantic: SemanticColors
  }
  typography: {
    fontFamilies: FontFamilies
    fontSizes: FontSizeScale
    lineHeights: LineHeightScale
    fontWeights: FontWeightScale
  }
  spacing: SpacingScale
  borders: {
    radius: RadiusScale
    width: BorderWidthScale
  }
  shadows: ShadowScale
  animations: AnimationTokens
}
interface ColorScale {
  50: string
  100: string
  200: string
  300: string
  400: string
  500: string
  600: string
  700: string
  800: string
  900: string
  950: string
}
interface SemanticColors {
  success: { light: string; DEFAULT: string; dark: string }
  warning: { light: string; DEFAULT: string; dark: string }
  error: { light: string; DEFAULT: string; dark: string }
  info: { light: string; DEFAULT: string; dark: string }
}
class DesignSystemManager {
  private tokens: DesignTokens
  private components = new Map()
  private themes = new Map()
  constructor(tokens: DesignTokens) {
    this.tokens = tokens
    this.initializeDefaultTheme()
  }
  registerComponent(name: string, definition: ComponentDefinition): void {
    this.validateComponentDefinition(definition)
    this.components.set(name, definition)
    this.generateComponentVariants(name, definition)
  }
  createTheme(name: string, overrides: Partial): Theme {
    const theme: Theme = {
      name,
      tokens: this.mergeTokens(this.tokens, overrides),
      mode: 'light'
    }
    this.themes.set(name, theme)
    return theme
  }
  generateComponentVariants(name: string, definition: ComponentDefinition): void {
    const variants = ['sm', 'md', 'lg', 'xl']
    const states = ['default', 'hover', 'active', 'disabled', 'focus']
    for (const variant of variants) {
      for (const state of states) {
        this.generateVariantStyles(name, variant, state, definition)
      }
    }
  }
  private generateVariantStyles(
    component: string,
    variant: string,
    state: string,
    definition: ComponentDefinition
  ): ComponentStyles {
    // Generate styles based on design tokens and component definition
    return {
      base: this.applyBaseStyles(definition),
      variant: this.applyVariantStyles(variant, definition),
      state: this.applyStateStyles(state, definition)
    }
  }
}

// Advanced button component with comprehensive variants
interface ButtonProps {
  variant: 'primary' | 'secondary' | 'outline' | 'ghost' | 'link'
  size: 'xs' | 'sm' | 'md' | 'lg' | 'xl'
  state?: 'loading' | 'disabled' | 'active'
  icon?: {
    position: 'left' | 'right'
    component: React.ComponentType
  }
  fullWidth?: boolean
  children: React.ReactNode
  onClick?: () => void
}
const buttonStyles = {
  base: 
    inline-flex items-center justify-center
    font-medium transition-all duration-200
    focus:outline-none focus:ring-2 focus:ring-offset-2
    disabled:opacity-50 disabled:cursor-not-allowed
  ,
  variants: {
    primary: 
      bg-primary-600 text-white
      hover:bg-primary-700
      active:bg-primary-800
      focus:ring-primary-500
    ,
    secondary: 
      bg-secondary-100 text-secondary-900
      hover:bg-secondary-200
      active:bg-secondary-300
      focus:ring-secondary-500
    ,
    outline: 
      border-2 border-primary-600 text-primary-600
      hover:bg-primary-50
      active:bg-primary-100
      focus:ring-primary-500
    ,
    ghost: 
      text-neutral-700
      hover:bg-neutral-100
      active:bg-neutral-200
      focus:ring-neutral-500
    ,
    link: 
      text-primary-600 underline-offset-4
      hover:underline
      focus:ring-primary-500
    
  },
  sizes: {
    xs: 'px-2.5 py-1.5 text-xs rounded',
    sm: 'px-3 py-2 text-sm rounded-md',
    md: 'px-4 py-2.5 text-base rounded-md',
    lg: 'px-5 py-3 text-lg rounded-lg',
    xl: 'px-6 py-4 text-xl rounded-lg'
  }
}
export const Button: React.FC = ({
  variant = 'primary',
  size = 'md',
  state,
  icon,
  fullWidth,
  children,
  onClick
}) => {
  const classes = classNames(
    buttonStyles.base,
    buttonStyles.variants[variant],
    buttonStyles.sizes[size],
    fullWidth && 'w-full',
    state === 'loading' && 'cursor-wait'
  )
  return (
    
      {icon?.position === 'left' && }
      {state === 'loading' ?  : children}
      {icon?.position === 'right' && }
    
  )
}

// AI-powered design system generator
interface DesignInput {
  brandColors: string[]
  typography: {
    primary: string
    secondary?: string
  }
  style: 'modern' | 'classic' | 'playful' | 'professional'
  industry: string
}
class AIDesignSystemGenerator {
  private aiClient: OpenAI
  async generateDesignSystem(input: DesignInput): Promise {
    // Generate comprehensive color palette
    const colorPalette = await this.generateColorPalette(input.brandColors)
    // Generate typography scale
    const typography = await this.generateTypographyScale(input.typography)
    // Generate spacing system
    const spacing = this.generateSpacingScale(input.style)
    // Generate component variants
    const components = await this.generateComponentLibrary(input)
    return {
      colors: colorPalette,
      typography,
      spacing,
      borders: this.generateBorderTokens(input.style),
      shadows: this.generateShadowTokens(input.style),
      animations: this.generateAnimationTokens(input.style)
    }
  }
  private async generateColorPalette(brandColors: string[]): Promise {
    const prompt = 
      Generate a comprehensive color palette based on these brand colors: ${brandColors.join(', ')}.
      Create scales from 50 (lightest) to 950 (darkest) for primary, secondary, and neutral colors.
      Ensure proper contrast ratios for accessibility (WCAG AA minimum).
    
    const response = await this.aiClient.chat.completions.create({
      model: 'gpt-4',
      messages: [{ role: 'user', content: prompt }]
    })
    return this.parseColorPalette(response.choices[0].message.content)
  }
  private async generateTypographyScale(input: FontInput): Promise {
    // Generate harmonious font size scale using modular scale
    const baseSize = 16 // 1rem
    const ratio = 1.25 // Major third scale
    return {
      fontFamilies: {
        sans: [input.primary, 'system-ui', 'sans-serif'],
        serif: [input.secondary || 'Georgia', 'serif'],
        mono: ['Consolas', 'Monaco', 'monospace']
      },
      fontSizes: {
        xs: ${baseSize / (ratio * ratio)}px,
        sm: ${baseSize / ratio}px,
        base: ${baseSize}px,
        lg: ${baseSize * ratio}px,
        xl: ${baseSize * ratio * ratio}px,
        '2xl': ${baseSize * ratio * ratio * ratio}px,
        '3xl': ${baseSize * ratio * ratio * ratio * ratio}px,
        '4xl': ${baseSize * ratio * ratio * ratio * ratio * ratio}px
      },
      lineHeights: {
        tight: '1.25',
        normal: '1.5',
        relaxed: '1.75',
        loose: '2'
      },
      fontWeights: {
        light: '300',
        normal: '400',
        medium: '500',
        semibold: '600',
        bold: '700',
        extrabold: '800'
      }
    }
  }
}

// AI-powered image optimization and format selection
class IntelligentAssetOptimizer {
  async optimizeAsset(asset: AssetFile): Promise {
    // Analyze image content
    const analysis = await this.analyzeImageContent(asset)
    // Determine optimal format
    const format = this.selectOptimalFormat(analysis)
    // Generate responsive variants
    const variants = await this.generateResponsiveVariants(asset, analysis)
    // Apply compression
    const compressed = await this.applyIntelligentCompression(asset, analysis)
    return {
      original: asset,
      optimized: compressed,
      format,
      variants,
      savings: this.calculateSavings(asset, compressed)
    }
  }
  private async analyzeImageContent(asset: AssetFile): Promise {
    // Use AI vision model to understand image content
    const vision = await this.aiClient.vision.analyze(asset.buffer)
    return {
      type: vision.type, // photo, illustration, icon, diagram
      complexity: vision.complexity,
      hasTransparency: this.detectTransparency(asset),
      dominantColors: vision.colors,
      hasText: vision.containsText,
      detectedObjects: vision.objects
    }
  }
  private selectOptimalFormat(analysis: ImageAnalysis): ImageFormat {
    if (analysis.type === 'icon' || analysis.type === 'diagram') {
      return 'svg'
    }
    if (analysis.hasTransparency) {
      return analysis.complexity > 0.5 ? 'png' : 'webp'
    }
    if (analysis.type === 'photo') {
      return 'webp' // Better compression for photos
    }
    return 'webp' // Default to WebP for best compression
  }
  private async generateResponsiveVariants(
    asset: AssetFile,
    analysis: ImageAnalysis
  ): Promise {
    const breakpoints = [
      { name: 'mobile', width: 640 },
      { name: 'tablet', width: 768 },
      { name: 'desktop', width: 1024 },
      { name: 'wide', width: 1536 }
    ]
    const variants: ResponsiveVariant[] = []
    for (const breakpoint of breakpoints) {
      const variant = await this.resizeImage(asset, breakpoint.width)
      const optimized = await this.applyIntelligentCompression(variant, analysis)
      variants.push({
        name: breakpoint.name,
        width: breakpoint.width,
        file: optimized,
        srcset: this.generateSrcSet(optimized, breakpoint)
      })
    }
    return variants
  }
}

// Automated component generation from Figma designs
interface FigmaComponent {
  id: string
  name: string
  type: 'COMPONENT' | 'FRAME' | 'GROUP'
  styles: FigmaStyles
  children: FigmaComponent[]
}
class FigmaToCodeGenerator {
  private figmaClient: FigmaAPI
  async generateComponentFromFigma(fileId: string, componentId: string): Promise {
    // Fetch component from Figma
    const component = await this.figmaClient.getComponent(fileId, componentId)
    // Extract styles
    const styles = this.extractStyles(component)
    // Generate React component
    const code = this.generateReactComponent(component, styles)
    // Format and optimize
    return this.formatCode(code)
  }
  private extractStyles(component: FigmaComponent): ComponentStyles {
    return {
      layout: this.extractLayoutStyles(component),
      typography: this.extractTypographyStyles(component),
      colors: this.extractColorStyles(component),
      spacing: this.extractSpacingStyles(component),
      borders: this.extractBorderStyles(component),
      effects: this.extractEffectStyles(component)
    }
  }
  private generateReactComponent(
    component: FigmaComponent,
    styles: ComponentStyles
  ): string {
    const props = this.inferComponentProps(component)
    const styleClasses = this.generateTailwindClasses(styles)
    return 
import React from 'react'
import { cn } from '@/lib/utils'

interface ${component.name}Props {
  ${props.map(p => ${p.name}${p.optional ? '?' : ''}: ${p.type}).join('\n  ')}
  className?: string
}

export const ${component.name}: React.FC<${component.name}Props> = ({
  ${props.map(p => p.name).join(',\n  ')},
  className
}) => {
  return (
    

      ${this.generateComponentChildren(component)}
    
  )
}
    .trim()
  }

  private generateTailwindClasses(styles: ComponentStyles): string {
    const classes: string[] = []
    // Layout
    if (styles.layout.display) {
      classes.push(this.mapDisplayToTailwind(styles.layout.display))
    }
    // Typography
    if (styles.typography.fontSize) {
      classes.push(text-${this.mapFontSize(styles.typography.fontSize)})
    }
    if (styles.typography.fontWeight) {
      classes.push(font-${this.mapFontWeight(styles.typography.fontWeight)})
    }
    // Colors
    if (styles.colors.background) {
      classes.push(this.mapColorToTailwind(styles.colors.background, 'bg'))
    }
    if (styles.colors.text) {
      classes.push(this.mapColorToTailwind(styles.colors.text, 'text'))
    }
    // Spacing
    if (styles.spacing.padding) {
      classes.push(this.mapSpacingToTailwind(styles.spacing.padding, 'p'))
    }
    if (styles.spacing.margin) {
      classes.push(this.mapSpacingToTailwind(styles.spacing.margin, 'm'))
    }
    return classes.join(' ')
  }
}

// Comprehensive accessibility testing for design systems
class AccessibilityValidator {
  async validateDesignSystem(system: DesignTokens): Promise {
    const issues: AccessibilityIssue[] = []
    // Validate color contrast ratios
    const contrastIssues = await this.validateColorContrast(system.colors)
    issues.push(...contrastIssues)
    // Validate font sizes
    const typographyIssues = this.validateTypography(system.typography)
    issues.push(...typographyIssues)
    // Validate touch target sizes
    const touchTargetIssues = this.validateTouchTargets(system.spacing)
    issues.push(...touchTargetIssues)
    // Validate focus indicators
    const focusIssues = this.validateFocusIndicators(system)
    issues.push(...focusIssues)
    return {
      passed: issues.filter(i => i.severity !== 'error').length,
      failed: issues.filter(i => i.severity === 'error').length,
      warnings: issues.filter(i => i.severity === 'warning').length,
      issues,
      score: this.calculateAccessibilityScore(issues)
    }
  }
  private async validateColorContrast(colors: ColorTokens): Promise {
    const issues: AccessibilityIssue[] = []
    const combinations = this.generateColorCombinations(colors)
    for (const combo of combinations) {
      const ratio = this.calculateContrastRatio(combo.foreground, combo.background)
      if (ratio < 4.5) { // WCAG AA for normal text
        issues.push({
          type: 'color-contrast',
          severity: 'error',
          message: Insufficient contrast ratio (${ratio.toFixed(2)}:1) between ${combo.foreground} and ${combo.background},
          recommendation: 'Use colors with at least 4.5:1 contrast ratio for normal text',
          wcagLevel: 'AA'
        })
      } else if (ratio < 7) { // WCAG AAA
        issues.push({
          type: 'color-contrast',
          severity: 'warning',
          message: Contrast ratio (${ratio.toFixed(2)}:1) does not meet AAA standards,
          recommendation: 'Consider using colors with 7:1 contrast ratio for AAA compliance',
          wcagLevel: 'AAA'
        })
      }
    }
    return issues
  }
  private calculateContrastRatio(color1: string, color2: string): number {
    const l1 = this.getRelativeLuminance(color1)
    const l2 = this.getRelativeLuminance(color2)
    const lighter = Math.max(l1, l2)
    const darker = Math.min(l1, l2)
    return (lighter + 0.05) / (darker + 0.05)
  }
}

// Semantic versioning for design systems
class DesignSystemVersionControl {
  private versions = new Map()
  private currentVersion: string = '1.0.0'
  async publishVersion(
    version: string,
    changes: DesignSystemChanges,
    changelog: string
  ): Promise {
    // Validate semantic version
    if (!this.isValidSemver(version)) {
      throw new Error(Invalid semantic version: ${version})
    }
    // Check for breaking changes
    const breaking = this.detectBreakingChanges(changes)
    // Generate migration guide if needed
    const migration = breaking.length > 0
      ? await this.generateMigrationGuide(breaking)
      : null
    // Create version snapshot
    const snapshot: DesignSystemVersion = {
      version,
      timestamp: new Date(),
      changes,
      changelog,
      migration,
      tokens: this.generateTokenSnapshot(),
      components: this.generateComponentSnapshot()
    }
    this.versions.set(version, snapshot)
    this.currentVersion = version
    // Notify consumers
    await this.notifyVersionUpdate(snapshot)
  }
  private detectBreakingChanges(changes: DesignSystemChanges): BreakingChange[] {
    const breaking: BreakingChange[] = []
    // Detect removed tokens
    for (const removed of changes.removed.tokens) {
      breaking.push({
        type: 'token-removed',
        item: removed,
        impact: 'high',
        affectedComponents: this.findComponentsUsingToken(removed)
      })
    }
    // Detect renamed tokens
    for (const renamed of changes.renamed.tokens) {
      breaking.push({
        type: 'token-renamed',
        item: renamed,
        impact: 'medium',
        migration: Replace ${renamed.old} with ${renamed.new}
      })
    }
    return breaking
  }
}