specification {
  element actor {
    style {
      shape person
    }
  }
  element system
  element external {
    style {
      color muted
    }
  }
  element container
  element component
}

model {
  actor developer = 'WPF Developer' {
    description 'Builds WPF apps using WPF UI'
  }
  actor enduser = 'End User' {
    description 'Uses WPF desktop applications'
  }

  system wpfui = 'WPF UI Library' {
    description 'Fluent Design System for WPF. 77+ controls, theming, Win32 interop.'

    container core = 'Wpf.Ui' {
      description 'Core library - controls, theming, services, interop'

      component controls = 'Controls' {
        description '77+ Fluent Design controls including NavigationView, TitleBar, FluentWindow, ContentDialog, NumberBox, ToggleSwitch'
      }
      component appearance = 'Appearance' {
        description 'Theme and accent color management via ApplicationThemeManager and ApplicationAccentColorManager'
      }
      component services = 'Services' {
        description 'NavigationService, ContentDialogService, SnackbarService, TaskBarService'
      }
      component interop = 'Win32 Interop' {
        description 'DWM, User32, Shell32 wrappers via CsWin32 P/Invoke'
      }
      component resources = 'Resources' {
        description 'ThemesDictionary, ControlsDictionary, embedded Fluent System Icons fonts'
      }
      component converters = 'Converters' {
        description 'XAML value converters for theme-aware data binding'
      }
      component automationPeers = 'AutomationPeers' {
        description 'UI Automation and accessibility support for custom controls'
      }
    }

    container abstractions = 'Wpf.Ui.Abstractions' {
      description 'Contract interfaces for services and navigation. Multi-targets netstandard2.0/2.1.'
    }
    container di = 'Wpf.Ui.DependencyInjection' {
      description 'Microsoft.Extensions.DependencyInjection integration for services and navigation'
    }
    container tray = 'Wpf.Ui.Tray' {
      description 'System tray icon and context menu support'
    }
    container syntaxHighlight = 'Wpf.Ui.SyntaxHighlight' {
      description 'Code syntax highlighting display control'
    }
    container gallery = 'Wpf.Ui.Gallery' {
      description 'Demo application showcasing all controls and patterns'
    }
    container flaui = 'Wpf.Ui.FlaUI' {
      description 'FlaUI-based test automation helpers for integration testing'
    }
    container fontMapper = 'Wpf.Ui.FontMapper' {
      description 'Build-time tool generating icon enum from Fluent System Icons font'
    }
  }

  external nuget = 'NuGet.org' {
    description 'Package distribution for WPF-UI and satellite packages'
  }
  external windows = 'Windows OS' {
    description 'Win32 APIs, Desktop Window Manager, WinRT notifications'
  }
  external github = 'GitHub' {
    description 'Source hosting, CI/CD via GitHub Actions, documentation'
  }
  external fluentIcons = 'Fluent System Icons' {
    description 'Microsoft open-source icon font (Filled + Regular variants)'
  }
  external wpfFramework = 'WPF Framework' {
    description '.NET WPF runtime and base controls'
  }

  // Actor relationships
  developer -> wpfui.core 'Uses controls, theming, and services via NuGet'
  developer -> wpfui.di 'Registers services in DI container'
  developer -> nuget 'Installs WPF-UI packages'
  enduser -> wpfui.gallery 'Explores demo application'

  // Internal container relationships
  wpfui.core -> abstractions 'Implements service interfaces'
  wpfui.di -> abstractions 'References contract interfaces'
  wpfui.di -> wpfui.core 'Registers concrete service implementations'
  wpfui.tray -> wpfui.core 'Extends with system tray functionality'
  wpfui.syntaxHighlight -> wpfui.core 'Extends with syntax highlighting control'
  wpfui.gallery -> wpfui.core 'Demonstrates all controls and services'
  wpfui.gallery -> wpfui.di 'Uses DI for service registration'
  wpfui.gallery -> wpfui.tray 'Demonstrates tray integration'
  wpfui.gallery -> wpfui.syntaxHighlight 'Demonstrates code display'
  wpfui.flaui -> wpfui.core 'Provides automation wrappers for controls'

  // Internal component relationships
  wpfui.core.controls -> wpfui.core.appearance 'Reacts to theme changes'
  wpfui.core.controls -> wpfui.core.resources 'Consumes styles and templates'
  wpfui.core.controls -> wpfui.core.interop 'Uses Win32 for TitleBar, snap layouts'
  wpfui.core.controls -> wpfui.core.converters 'Uses value converters in templates'
  wpfui.core.controls -> wpfui.core.automationPeers 'Exposes automation support'
  wpfui.core.services -> wpfui.core.controls 'Manages NavigationView, ContentDialog, Snackbar'
  wpfui.core.appearance -> wpfui.core.interop 'Detects system theme via Win32'
  wpfui.core.appearance -> wpfui.core.resources 'Switches theme dictionaries at runtime'

  // External relationships
  wpfui.core.interop -> windows 'P/Invoke calls to DWM, User32, Shell32'
  wpfui.core -> wpfFramework 'Extends WPF base classes (Control, Window, etc.)'
  wpfui.core.resources -> fluentIcons 'Bundles icon font files'
  wpfui.core -> nuget 'Published as WPF-UI package'
  wpfui.core -> github 'Source hosted, CI/CD pipeline'
  wpfui.fontMapper -> fluentIcons 'Parses icon font to generate enums'
}

views {
  view context of wpfui {
    title 'WPF UI - System Context (C4 Level 1)'
    include *, developer, enduser, nuget, windows, github, fluentIcons, wpfFramework
  }

  view containers of wpfui {
    title 'WPF UI - Container View (C4 Level 2)'
    include wpfui, wpfui.*, developer, windows, nuget, wpfFramework
  }

  view components of wpfui.core {
    title 'Wpf.Ui Core - Component View (C4 Level 3)'
    include wpfui.core, wpfui.core.*, windows, wpfFramework, fluentIcons
  }
}