PDF Flipbook Tool - Complete Specification & Implementation Plan

interface PDFProcessingCapabilities {
  maxFileSize: '100MB'
  supportedFormats: ['application/pdf']
  pageSizeSupport: ['A4', 'A5', 'Letter', 'Legal', 'Custom']
  orientationSupport: ['Portrait', 'Landscape', 'Mixed']
  qualityPreservation: 'High-resolution with web optimization'
  metadataExtraction: {
    pageCount: true
    dimensions: true
    title: true
    author: true
    creationDate: true
    fileSize: true
  }
}

interface VisualCustomization {
  pageEffects: {
    depth: 'low' | 'medium' | 'high'
    shadows: boolean
    corners: 'sharp' | 'rounded' | 'custom'
    edges: 'clean' | 'worn' | 'textured'
    binding: 'none' | 'spiral' | 'hardcover' | 'paperback'
  }
  background: {
    type: 'color' | 'gradient' | 'image' | 'pattern'
    value: string
    opacity: number
    blur: number
  }
  responsive: {
    autoResize: boolean
    minWidth: string
    maxWidth: string
    aspectRatio: 'auto' | 'fixed'
  }
}

interface BrandingOptions {
  logo: {
    url: string
    position: 'top-left' | 'top-right' | 'bottom-left' | 'bottom-right' | 'center'
    size: 'small' | 'medium' | 'large' | 'custom'
    opacity: number
  }
  colors: {
    primary: string
    secondary: string
    accent: string
    background: string
    text: string
    navigation: string
  }
  typography: {
    fontFamily: string
    fontSize: number
    lineHeight: number
    letterSpacing: number
  }
  layout: {
    padding: number
    margin: number
    borderRadius: number
    maxWidth: string
  }
}

interface InteractiveElement {
  id: string
  type: 'link' | 'video' | 'audio' | 'form' | 'embed' | 'hotspot'
  position: {
    page: number
    x: number
    y: number
    width: number
    height: number
  }
  config: LinkConfig | MediaConfig | FormConfig | EmbedConfig
  styling: ElementStyling
}
 
interface LinkConfig {
  url: string
  target: '_blank' | '_self' | 'page'
  pageNumber?: number
  tooltip?: string
}
 
interface MediaConfig {
  url: string
  autoplay: boolean
  controls: boolean
  loop: boolean
  muted: boolean
  poster?: string
}
 
interface FormConfig {
  action: string
  method: 'POST' | 'GET'
  fields: FormField[]
  submitText: string
  successMessage: string
}
 
interface EmbedConfig {
  url: string
  type: 'iframe' | 'script' | 'widget'
  responsive: boolean
  sandbox: string[]
}

interface NavigationControls {
  buttons: {
    previous: ButtonConfig
    next: ButtonConfig
    first: ButtonConfig
    last: ButtonConfig
    fullscreen: ButtonConfig
    zoom: ButtonConfig
    share: ButtonConfig
  }
  slider: {
    enabled: boolean
    position: 'top' | 'bottom' | 'left' | 'right'
    style: 'minimal' | 'detailed' | 'custom'
    showThumbnails: boolean
  }
  thumbnails: {
    enabled: boolean
    position: 'left' | 'right' | 'bottom' | 'overlay'
    size: 'small' | 'medium' | 'large'
    columns: number
    showPageNumbers: boolean
  }
  keyboard: {
    enabled: boolean
    shortcuts: KeyboardShortcut[]
  }
  touch: {
    swipeEnabled: boolean
    pinchZoom: boolean
    doubleTapZoom: boolean
    longPressMenu: boolean
  }
}
 
interface ButtonConfig {
  enabled: boolean
  position: string
  style: 'icon' | 'text' | 'both'
  color: string
  size: string
  tooltip: string
}

interface SharingSystem {
  links: {
    direct: {
      enabled: boolean
      customSlug: boolean
      expirationDate?: Date
      passwordProtected: boolean
    }
    embed: {
      responsive: boolean
      customSize: boolean
      styles: EmbedStyle[]
      jsAPI: boolean
    }
    social: {
      platforms: SocialPlatform[]
      customMessages: boolean
      openGraphTags: boolean
      twitterCards: boolean
    }
  }
  qrCodes: {
    enabled: boolean
    customization: QRCodeOptions
    downloadFormats: ['PNG', 'SVG', 'PDF']
  }
  exports: {
    gif: {
      enabled: boolean
      duration: number
      quality: 'low' | 'medium' | 'high'
      pages: 'all' | 'selection' | 'range'
    }
    video: {
      enabled: boolean
      format: 'MP4' | 'WebM'
      quality: '720p' | '1080p'
      autoplay: boolean
    }
  }
}

interface SecurityOptions {
  access: {
    public: boolean
    password: string
    userRestrictions: string[]
    domainRestrictions: string[]
    ipRestrictions: string[]
  }
  embed: {
    allowedDomains: string[]
    preventHotlinking: boolean
    requireReferrer: boolean
    customCSP: string
  }
  content: {
    disableRightClick: boolean
    disableTextSelection: boolean
    disablePrint: boolean
    disableDownload: boolean
    watermark: WatermarkOptions
  }
  expiration: {
    enabled: boolean
    date: Date
    viewLimit: number
    timeLimit: number
  }
}

interface AnalyticsSystem {
  reader: {
    viewCount: number
    uniqueVisitors: number
    averageTimeSpent: number
    bounceRate: number
    completionRate: number
    returnVisitors: number
  }
  geographic: {
    countries: CountryData[]
    cities: CityData[]
    timezones: TimezoneData[]
    languages: LanguageData[]
  }
  behavior: {
    pagesViewed: PageAnalytics[]
    interactionEvents: InteractionEvent[]
    searchQueries: SearchQuery[]
    exitPages: PageData[]
    heatmaps: HeatmapData[]
  }
  technical: {
    devices: DeviceData[]
    browsers: BrowserData[]
    screenResolutions: ResolutionData[]
    connectionSpeeds: SpeedData[]
    loadTimes: PerformanceData[]
  }
  conversion: {
    clickThroughRates: CTRData[]
    formSubmissions: FormData[]
    downloadRates: DownloadData[]
    shareRates: ShareData[]
    leadGeneration: LeadData[]
  }
}

interface RealtimeMonitoring {
  activeReaders: number
  currentPage: PageDistribution[]
  liveInteractions: InteractionEvent[]
  performance: {
    loadTime: number
    renderTime: number
    errorRate: number
    uptime: number
  }
  alerts: {
    highTraffic: boolean
    errorSpikes: boolean
    performanceIssues: boolean
    securityThreats: boolean
  }
}

-- Core flipbook table
CREATE TABLE tools_pdf_flipbooks (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  title TEXT NOT NULL,
  share_code TEXT UNIQUE NOT NULL,
  
  -- File management
  pdf_url TEXT NOT NULL,
  backblaze_file_id TEXT NOT NULL,
  original_filename TEXT NOT NULL,
  file_size_bytes INTEGER NOT NULL,
  page_count INTEGER NOT NULL,
  pdf_metadata JSONB DEFAULT '{}',
  
  -- Flipbook configuration
  page_effect VARCHAR(20) DEFAULT 'magazine', -- magazine, book, slider, coverflow, onepage
  customization JSONB DEFAULT '{}',
  branding JSONB DEFAULT '{}',
  navigation_config JSONB DEFAULT '{}',
  interactive_elements JSONB DEFAULT '[]',
  
  -- Security & privacy
  is_password_protected BOOLEAN DEFAULT FALSE,
  password_hash TEXT,
  allowed_domains TEXT[],
  domain_restrictions JSONB DEFAULT '{}',
  access_settings JSONB DEFAULT '{}',
  expires_at TIMESTAMPTZ,
  
  -- Sharing & distribution
  sharing_settings JSONB DEFAULT '{}',
  embed_settings JSONB DEFAULT '{}',
  social_settings JSONB DEFAULT '{}',
  
  -- Analytics tracking
  view_count INTEGER DEFAULT 0,
  unique_visitors INTEGER DEFAULT 0,
  total_time_spent INTEGER DEFAULT 0, -- in seconds
  last_viewed_at TIMESTAMPTZ,
  
  -- SEO & marketing
  seo_title TEXT,
  seo_description TEXT,
  og_image_url TEXT,
  keywords TEXT[],
  
  -- Standard tool fields
  user_id UUID REFERENCES auth.users(id),
  session_id TEXT NOT NULL,
  is_public BOOLEAN DEFAULT FALSE,
  is_featured BOOLEAN DEFAULT FALSE,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW(),
  
  -- Rate limiting fields
  generation_count INTEGER DEFAULT 1,
  last_generation_at TIMESTAMPTZ DEFAULT NOW()
);
 
-- Analytics events table
CREATE TABLE flipbook_analytics_events (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  flipbook_id UUID REFERENCES tools_pdf_flipbooks(id) ON DELETE CASCADE,
  
  -- Event details
  event_type VARCHAR(50) NOT NULL, -- view, page_turn, interaction, share, etc.
  event_data JSONB DEFAULT '{}',
  page_number INTEGER,
  
  -- Session information
  session_id TEXT NOT NULL,
  visitor_id TEXT,
  user_id UUID REFERENCES auth.users(id),
  
  -- Technical details
  user_agent TEXT,
  ip_address INET,
  referrer TEXT,
  device_type VARCHAR(20),
  browser VARCHAR(50),
  
  -- Geographic data
  country_code VARCHAR(2),
  city TEXT,
  timezone TEXT,
  
  -- Performance data
  load_time INTEGER, -- milliseconds
  render_time INTEGER, -- milliseconds
  
  created_at TIMESTAMPTZ DEFAULT NOW()
);
 
-- Interactive elements table
CREATE TABLE flipbook_interactive_elements (
  id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
  flipbook_id UUID REFERENCES tools_pdf_flipbooks(id) ON DELETE CASCADE,
  
  element_type VARCHAR(20) NOT NULL, -- link, video, audio, form, embed, hotspot
  page_number INTEGER NOT NULL,
  position JSONB NOT NULL, -- {x, y, width, height}
  config JSONB NOT NULL,
  styling JSONB DEFAULT '{}',
  
  -- Analytics
  click_count INTEGER DEFAULT 0,
  conversion_count INTEGER DEFAULT 0,
  
  is_active BOOLEAN DEFAULT TRUE,
  created_at TIMESTAMPTZ DEFAULT NOW(),
  updated_at TIMESTAMPTZ DEFAULT NOW()
);
 
-- Required indexes for performance
CREATE INDEX idx_flipbooks_share_code ON tools_pdf_flipbooks(share_code);
CREATE INDEX idx_flipbooks_user_id ON tools_pdf_flipbooks(user_id);
CREATE INDEX idx_flipbooks_session_id ON tools_pdf_flipbooks(session_id);
CREATE INDEX idx_flipbooks_public ON tools_pdf_flipbooks(is_public) WHERE is_public = TRUE;
CREATE INDEX idx_flipbooks_featured ON tools_pdf_flipbooks(is_featured) WHERE is_featured = TRUE;
 
CREATE INDEX idx_analytics_flipbook_id ON flipbook_analytics_events(flipbook_id);
CREATE INDEX idx_analytics_event_type ON flipbook_analytics_events(event_type);
CREATE INDEX idx_analytics_created_at ON flipbook_analytics_events(created_at);
CREATE INDEX idx_analytics_session_id ON flipbook_analytics_events(session_id);
 
CREATE INDEX idx_interactive_elements_flipbook_id ON flipbook_interactive_elements(flipbook_id);
CREATE INDEX idx_interactive_elements_page_number ON flipbook_interactive_elements(page_number);

// Shared flipbook component package structure
// packages/pdf-flipbook/
 
interface FlipbookProps {
  // Core properties
  pdfUrl: string
  pageEffect: 'magazine' | 'book' | 'slider' | 'coverflow' | 'onepage'
  
  // Configuration objects
  customization?: FlipbookCustomization
  branding?: BrandingOptions
  navigation?: NavigationControls
  interactiveElements?: InteractiveElement[]
  
  // Behavior settings
  autoPlay?: boolean
  autoPlaySpeed?: number
  preloadPages?: number
  enableKeyboard?: boolean
  enableTouch?: boolean
  
  // Analytics & tracking
  analytics?: boolean
  trackingId?: string
  
  // Event handlers
  onPageChange?: (page: number, totalPages: number) => void
  onInteraction?: (event: InteractionEvent) => void
  onReady?: (flipbook: FlipbookInstance) => void
  onError?: (error: FlipbookError) => void
  
  // Styling
  className?: string
  style?: React.CSSProperties
  theme?: 'light' | 'dark' | 'auto'
}
 
interface FlipbookInstance {
  // Navigation methods
  nextPage(): void
  prevPage(): void
  goToPage(page: number): void
  firstPage(): void
  lastPage(): void
  
  // Display methods
  toggleFullscreen(): void
  setZoom(level: number): void
  fit(): void
  
  // State getters
  getCurrentPage(): number
  getTotalPages(): number
  isFullscreen(): boolean
  getZoomLevel(): number
  
  // Interaction methods
  addInteractiveElement(element: InteractiveElement): void
  removeInteractiveElement(id: string): void
  updateInteractiveElement(id: string, updates: Partial<InteractiveElement>): void
  
  // Analytics methods
  trackEvent(event: string, data?: any): void
  getAnalytics(): AnalyticsData
}
 
// Component file structure
src/
├── components/
│   ├── FlipbookCore.tsx          # Main flipbook component
│   ├── PageRenderer.tsx          # PDF page rendering
│   ├── NavigationControls.tsx    # Navigation UI
│   ├── ThumbnailPanel.tsx        # Thumbnail sidebar
│   ├── InteractiveOverlay.tsx    # Interactive elements
│   ├── FullscreenMode.tsx        # Fullscreen view
│   └── LoadingStates.tsx         # Loading and error states
├── effects/
│   ├── MagazineEffect.tsx        # Magazine page turning
│   ├── BookEffect.tsx            # Book page turning
│   ├── SliderEffect.tsx          # Slide transitions
│   ├── CoverFlowEffect.tsx       # 3D carousel effect
│   └── OnePageEffect.tsx         # Single page view
├── hooks/
│   ├── useFlipbook.ts           # Main flipbook state
│   ├── usePDFLoader.ts          # PDF loading logic
│   ├── useAnalytics.ts          # Analytics tracking
│   ├── useInteractiveElements.ts # Interactive element management
│   └── useKeyboardNavigation.ts  # Keyboard controls
├── utils/
│   ├── pdfProcessor.ts          # PDF processing utilities
│   ├── animationHelpers.ts      # Animation utilities
│   ├── deviceDetection.ts       # Device and browser detection
│   └── analyticsHelpers.ts      # Analytics utilities
└── types/
    ├── flipbook.ts              # Core flipbook types
    ├── analytics.ts             # Analytics types
    └── interactions.ts          # Interactive element types

// Plugin structure
mystoryflow-flipbook/
├── mystoryflow-flipbook.php      # Main plugin file
├── includes/
│   ├── class-flipbook-admin.php  # Admin interface
│   ├── class-flipbook-public.php # Public functionality
│   ├── class-flipbook-api.php    # API integration
│   └── class-flipbook-blocks.php # Gutenberg blocks
├── admin/
│   ├── css/                      # Admin styles
│   ├── js/                       # Admin scripts
│   └── partials/                 # Admin templates
├── public/
│   ├── css/                      # Public styles
│   ├── js/                       # Public scripts
│   └── partials/                 # Public templates
└── blocks/
    ├── flipbook-embed/           # Gutenberg block
    └── flipbook-gallery/         # Gallery block

// Flipbook Gutenberg Block
const FlipbookBlock = {
  name: 'mystoryflow/flipbook',
  title: 'MyStoryFlow Flipbook',
  icon: 'book-alt',
  category: 'embed',
  attributes: {
    flipbookId: { type: 'string' },
    width: { type: 'string', default: '100%' },
    height: { type: 'string', default: '600px' },
    showControls: { type: 'boolean', default: true },
    effect: { type: 'string', default: 'magazine' }
  },
  edit: FlipbookBlockEdit,
  save: FlipbookBlockSave
}

// App structure
shopify-flipbook-app/
├── app/
│   ├── routes/                   # App routes
│   ├── components/               # React components
│   ├── models/                   # Data models
│   └── utils/                    # Utilities
├── extensions/
│   ├── theme-extension/          # Theme integration
│   └── checkout-extension/       # Checkout integration
├── web/
│   ├── middleware/               # Express middleware
│   ├── controllers/              # API controllers
│   └── services/                 # Business logic
└── shopify.app.toml             # App configuration

<!-- Liquid template integration -->
{% liquid
  assign flipbook_id = product.metafields.mystoryflow.flipbook_id
  if flipbook_id != blank
    render 'mystoryflow-flipbook', flipbook_id: flipbook_id
  endif
%}

// Universal JavaScript SDK
class MyStoryFlowFlipbook {
  constructor(containerId: string, options: FlipbookOptions) {
    this.container = document.getElementById(containerId)
    this.options = options
    this.init()
  }
  
  async init() {
    // Load flipbook dynamically
    await this.loadAssets()
    this.render()
    this.bindEvents()
  }
  
  private async loadAssets() {
    // Load CSS and JS assets from CDN
    const cssLink = document.createElement('link')
    cssLink.rel = 'stylesheet'
    cssLink.href = 'https://cdn.mystoryflow.com/flipbook/v1/flipbook.css'
    document.head.appendChild(cssLink)
    
    // Load React and dependencies if not present
    if (typeof React === 'undefined') {
      await this.loadScript('https://unpkg.com/react@18/umd/react.production.min.js')
      await this.loadScript('https://unpkg.com/react-dom@18/umd/react-dom.production.min.js')
    }
  }
  
  // Public API methods
  nextPage(): void { /* ... */ }
  prevPage(): void { /* ... */ }
  goToPage(page: number): void { /* ... */ }
  toggleFullscreen(): void { /* ... */ }
  destroy(): void { /* ... */ }
}
 
// Usage example
const flipbook = new MyStoryFlowFlipbook('flipbook-container', {
  flipbookId: 'abc123',
  effect: 'magazine',
  autoPlay: false,
  showControls: true
})

<!-- Simple embed code -->
<div id="mystoryflow-flipbook" 
     data-flipbook-id="abc123" 
     data-effect="magazine" 
     data-width="100%" 
     data-height="600px">
</div>
<script src="https://cdn.mystoryflow.com/flipbook/v1/embed.js"></script>

const ANONYMOUS_LIMITS = {
  flipbooks: {
    max_count: 3,
    storage_limit_mb: 50,
    expiration_days: 30
  },
  features: {
    page_effects: ['magazine'], // Only basic effect
    customization: 'basic', // Limited branding options
    analytics: 'basic', // View count only
    sharing: 'basic', // Direct links only
    interactive_elements: 0, // No interactive elements
    password_protection: false,
    custom_domain: false
  },
  rate_limits: {
    uploads_per_day: 3,
    shares_per_day: 10,
    api_calls_per_hour: 100
  }
}

const REGISTERED_FREE_LIMITS = {
  flipbooks: {
    max_count: 10,
    storage_limit_mb: 200,
    expiration_days: 365
  },
  features: {
    page_effects: ['magazine', 'book', 'slider'], // 3 effects
    customization: 'standard', // Full branding options
    analytics: 'standard', // Detailed analytics
    sharing: 'advanced', // All sharing options
    interactive_elements: 5, // Up to 5 per flipbook
    password_protection: true,
    custom_domain: false,
    export_formats: ['link', 'embed', 'qr']
  },
  rate_limits: {
    uploads_per_day: 10,
    shares_per_day: 50,
    api_calls_per_hour: 500
  }
}

const PRO_USER_LIMITS = {
  flipbooks: {
    max_count: 100,
    storage_limit_mb: 2000,
    expiration_days: null // No expiration
  },
  features: {
    page_effects: 'all', // All 5 effects
    customization: 'premium', // Advanced branding
    analytics: 'premium', // Full analytics suite
    sharing: 'premium', // All sharing + white-label
    interactive_elements: 'unlimited',
    password_protection: true,
    custom_domain: true,
    export_formats: 'all',
    api_access: true,
    white_label: true
  },
  rate_limits: {
    uploads_per_day: 100,
    shares_per_day: 1000,
    api_calls_per_hour: 5000
  }
}

interface UpgradeIncentive {
  trigger: string
  message: string
  benefit: string
  cta: string
}
 
const UPGRADE_INCENTIVES = [
  {
    trigger: 'max_flipbooks_reached',
    message: 'You\'ve reached your limit of 3 flipbooks',
    benefit: 'Create up to 10 flipbooks with a free account',
    cta: 'Sign up for free - No credit card required'
  },
  {
    trigger: 'storage_limit_reached',
    message: 'Your PDFs are taking up a lot of space!',
    benefit: 'Get 4x more storage (200MB) with registration',
    cta: 'Register now to upload larger PDFs'
  },
  {
    trigger: 'advanced_effect_attempted',
    message: 'The CoverFlow effect looks amazing!',
    benefit: 'Unlock all 5 page effects with a free account',
    cta: 'Sign up to access premium effects'
  },
  {
    trigger: 'analytics_interest',
    message: 'Want to see who\'s reading your flipbook?',
    benefit: 'Get detailed analytics with registration',
    cta: 'Create account for reader insights'
  }
]

class SmartRateLimiter {
  async checkUploadLimit(userId: string, sessionId: string): Promise<RateLimitResult> {
    const userType = await this.getUserType(userId)
    const limits = this.getLimitsForUserType(userType)
    const usage = await this.getUsage(userId, sessionId)
    
    const remaining = limits.uploads_per_day - usage.uploads_today
    const canUpload = remaining > 0
    
    if (!canUpload && userType === 'anonymous') {
      return {
        allowed: false,
        remaining: 0,
        resetTime: this.getResetTime(),
        upgradeMessage: 'Sign up for 10 uploads per day instead of 3',
        upgradeAction: 'register'
      }
    }
    
    if (!canUpload && userType === 'registered') {
      return {
        allowed: false,
        remaining: 0,
        resetTime: this.getResetTime(),
        upgradeMessage: 'Upgrade to Pro for 100 uploads per day',
        upgradeAction: 'upgrade'
      }
    }
    
    return {
      allowed: true,
      remaining,
      resetTime: this.getResetTime()
    }
  }
  
  async checkFeatureAccess(userId: string, feature: string): Promise<FeatureAccessResult> {
    const userType = await this.getUserType(userId)
    const allowedFeatures = this.getFeaturesForUserType(userType)
    
    if (!allowedFeatures.includes(feature)) {
      const upgradeInfo = this.getUpgradeInfoForFeature(feature, userType)
      return {
        allowed: false,
        upgradeRequired: true,
        upgradeInfo
      }
    }
    
    return { allowed: true }
  }
}

interface LeadGenerationStrategy {
  touchpoints: TouchPoint[]
  nurturing: NurturingSequence[]
  conversion: ConversionStrategy[]
}
 
const LEAD_GENERATION_TOUCHPOINTS = [
  {
    stage: 'first_visit',
    action: 'show_value_proposition',
    message: 'Create professional flipbooks in minutes',
    cta: 'Try it free - No registration required'
  },
  {
    stage: 'first_upload',
    action: 'highlight_benefits',
    message: 'Great choice! Your flipbook looks amazing',
    cta: 'Sign up to save your work and unlock more features'
  },
  {
    stage: 'limit_reached',
    action: 'show_upgrade_benefits',
    message: 'You\'re creating great content!',
    cta: 'Register to create 10x more flipbooks'
  },
  {
    stage: 'sharing_attempt',
    action: 'capture_email',
    message: 'Share your flipbook with the world',
    cta: 'Enter email to get your shareable link'
  }
]

interface ConversionMetrics {
  funnel_stage: string
  conversion_rate: number
  drop_off_points: string[]
  optimization_opportunities: string[]
}
 
const CONVERSION_TRACKING = {
  anonymous_to_registered: {
    triggers: ['limit_reached', 'feature_locked', 'sharing_attempt'],
    success_rate: 'target_15_percent',
    optimization: ['reduce_friction', 'increase_value_perception']
  },
  registered_to_pro: {
    triggers: ['storage_limit', 'advanced_features', 'api_access'],
    success_rate: 'target_5_percent',
    optimization: ['show_roi', 'trial_period', 'use_case_demos']
  }
}

interface EngagementMetrics {
  acquisition: {
    new_users_per_month: number
    organic_signups: number
    referral_signups: number
    conversion_rate_anonymous_to_registered: number
  }
  activation: {
    first_flipbook_creation_rate: number
    first_share_rate: number
    return_user_rate: number
    feature_adoption_rate: Record<string, number>
  }
  retention: {
    day_1_retention: number
    day_7_retention: number
    day_30_retention: number
    monthly_active_users: number
  }
  engagement: {
    avg_flipbooks_per_user: number
    avg_pages_per_flipbook: number
    avg_time_spent_creating: number
    feature_usage_distribution: Record<string, number>
  }
}

interface BusinessMetrics {
  lead_generation: {
    leads_generated_per_month: number
    lead_to_customer_conversion: number
    customer_acquisition_cost: number
    lifetime_value: number
  }
  cross_selling: {
    flipbook_to_mystoryflow_conversion: number
    upsell_rate: number
    feature_upgrade_rate: number
    retention_improvement: number
  }
  brand_awareness: {
    social_media_mentions: number
    backlinks_generated: number
    organic_search_traffic: number
    brand_recognition_score: number
  }
  technical_performance: {
    page_load_time: number
    error_rate: number
    uptime_percentage: number
    user_satisfaction_score: number
  }
}

interface AnalyticsDashboard {
  real_time: {
    active_users: number
    flipbooks_being_created: number
    current_shares: number
    system_health: SystemHealth
  }
  daily_summary: {
    new_flipbooks: number
    total_views: number
    unique_visitors: number
    conversion_events: number
  }
  growth_trends: {
    user_growth_rate: number
    usage_growth_rate: number
    revenue_impact: number
    market_penetration: number
  }
  competitive_analysis: {
    market_share: number
    feature_comparison: FeatureComparison[]
    user_satisfaction_vs_competitors: number
    pricing_position: PricingAnalysis
  }
}

interface SecurityMeasures {
  data_encryption: {
    at_rest: 'AES-256'
    in_transit: 'TLS-1.3'
    key_management: 'AWS-KMS'
  }
  access_control: {
    authentication: 'JWT-tokens'
    authorization: 'RBAC'
    session_management: 'secure-httponly-cookies'
  }
  content_protection: {
    pdf_access_control: boolean
    domain_restrictions: boolean
    watermarking: boolean
    download_prevention: boolean
  }
  compliance: {
    gdpr: boolean
    ccpa: boolean
    coppa: boolean
    accessibility: 'WCAG-2.1-AA'
  }
}

interface PrivacyControls {
  user_consent: {
    cookie_consent: boolean
    analytics_opt_in: boolean
    marketing_consent: boolean
    data_processing_consent: boolean
  }
  data_retention: {
    anonymous_content: '30_days'
    registered_user_content: '365_days'
    analytics_data: '24_months'
    deleted_account_data: '30_days'
  }
  user_rights: {
    data_export: boolean
    data_deletion: boolean
    data_correction: boolean
    data_portability: boolean
  }
}