/// UI Constants for the Worker App
///
/// Contains spacing, sizes, border radius, elevation values, and other
/// UI-related constants used throughout the app.
library;

import 'package:flutter/material.dart';

/// Spacing constants following Material Design 8dp grid system
class AppSpacing {
  AppSpacing._();

  /// Extra small spacing: 4dp
  static const double xs = 4.0;

  /// Small spacing: 8dp
  static const double sm = 8.0;

  /// Medium spacing: 16dp
  static const double md = 16.0;

  /// Large spacing: 24dp
  static const double lg = 24.0;

  /// Extra large spacing: 32dp
  static const double xl = 32.0;

  /// Extra extra large spacing: 48dp
  static const double xxl = 48.0;
}

/// Border radius constants
class AppRadius {
  AppRadius._();

  /// Small radius: 4dp
  static const double sm = 4.0;

  /// Medium radius: 8dp
  static const double md = 8.0;

  /// Large radius: 12dp
  static const double lg = 12.0;

  /// Extra large radius: 16dp
  static const double xl = 16.0;

  /// Card radius: 12dp
  static const double card = 12.0;

  /// Button radius: 8dp
  static const double button = 8.0;

  /// Input field radius: 8dp
  static const double input = 8.0;

  /// Member card radius: 16dp
  static const double memberCard = 16.0;

  /// Circular radius for avatars and badges
  static const double circular = 9999.0;
}

/// Elevation constants for Material Design
class AppElevation {
  AppElevation._();

  /// No elevation
  static const double none = 0.0;

  /// Low elevation: 2dp
  static const double low = 2.0;

  /// Medium elevation: 4dp
  static const double medium = 4.0;

  /// High elevation: 8dp
  static const double high = 8.0;

  /// Card elevation: 2dp
  static const double card = 2.0;

  /// Button elevation: 2dp
  static const double button = 2.0;

  /// FAB elevation: 6dp
  static const double fab = 6.0;

  /// Member card elevation: 8dp
  static const double memberCard = 8.0;
}

/// Icon size constants
class AppIconSize {
  AppIconSize._();

  /// Extra small icon: 16dp
  static const double xs = 16.0;

  /// Small icon: 20dp
  static const double sm = 20.0;

  /// Medium icon: 24dp
  static const double md = 24.0;

  /// Large icon: 32dp
  static const double lg = 32.0;

  /// Extra large icon: 48dp
  static const double xl = 48.0;
}

/// App bar specifications
class AppBarSpecs {
  AppBarSpecs._();

  /// Standard app bar height
  static const double height = 56.0;

  /// App bar elevation
  static const double elevation = 0.0;

  /// App bar icon size
  static const double iconSize = AppIconSize.md;
}

/// Bottom navigation bar specifications
class BottomNavSpecs {
  BottomNavSpecs._();

  /// Bottom nav bar height
  static const double height = 72.0;

  /// Icon size for unselected state
  static const double iconSize = 24.0;

  /// Icon size for selected state
  static const double selectedIconSize = 28.0;

  /// Label font size
  static const double labelFontSize = 12.0;

  /// Bottom nav bar elevation
  static const double elevation = 8.0;
}

/// Floating Action Button specifications
class FABSpecs {
  FABSpecs._();

  /// FAB size
  static const double size = 56.0;

  /// FAB elevation
  static const double elevation = 6.0;

  /// FAB icon size
  static const double iconSize = 24.0;

  /// FAB position from bottom-right
  static const Offset position = Offset(16, 16);
}

/// Member card specifications
class MemberCardSpecs {
  MemberCardSpecs._();

  /// Card width (full width)
  static const double width = double.infinity;

  /// Card height
  static const double height = 200.0;

  /// Border radius
  static const double borderRadius = AppRadius.memberCard;

  /// Card elevation
  static const double elevation = AppElevation.memberCard;

  /// Card padding
  static const EdgeInsets padding = EdgeInsets.all(20.0);

  /// QR code size
  static const double qrSize = 80.0;

  /// QR code background size
  static const double qrBackgroundSize = 90.0;

  /// Points display font size
  static const double pointsFontSize = 28.0;

  /// Points display font weight
  static const FontWeight pointsFontWeight = FontWeight.bold;

  /// Member ID font size
  static const double memberIdFontSize = 14.0;

  /// Member name font size
  static const double memberNameFontSize = 18.0;
}

/// Button specifications
class ButtonSpecs {
  ButtonSpecs._();

  /// Button height
  static const double height = 48.0;

  /// Button minimum width
  static const double minWidth = 120.0;

  /// Button border radius
  static const double borderRadius = AppRadius.button;

  /// Button elevation
  static const double elevation = AppElevation.button;

  /// Button padding
  static const EdgeInsets padding = EdgeInsets.symmetric(
    horizontal: AppSpacing.lg,
    vertical: AppSpacing.md,
  );

  /// Button font size
  static const double fontSize = 16.0;

  /// Button font weight
  static const FontWeight fontWeight = FontWeight.w600;
}

/// Input field specifications
class InputFieldSpecs {
  InputFieldSpecs._();

  /// Input field height
  static const double height = 56.0;

  /// Input field border radius
  static const double borderRadius = AppRadius.input;

  /// Input field content padding
  static const EdgeInsets contentPadding = EdgeInsets.symmetric(
    horizontal: AppSpacing.md,
    vertical: AppSpacing.md,
  );

  /// Input field font size
  static const double fontSize = 16.0;

  /// Label font size
  static const double labelFontSize = 14.0;

  /// Hint font size
  static const double hintFontSize = 14.0;
}

/// Card specifications
class CardSpecs {
  CardSpecs._();

  /// Card border radius
  static const double borderRadius = AppRadius.card;

  /// Card elevation
  static const double elevation = AppElevation.card;

  /// Card padding
  static const EdgeInsets padding = EdgeInsets.all(AppSpacing.md);

  /// Card margin
  static const EdgeInsets margin = EdgeInsets.symmetric(
    horizontal: AppSpacing.md,
    vertical: AppSpacing.sm,
  );
}

/// Product card specifications
class ProductCardSpecs {
  ProductCardSpecs._();

  /// Product image aspect ratio (width / height)
  static const double imageAspectRatio = 1.0;

  /// Product card border radius
  static const double borderRadius = AppRadius.card;

  /// Product card elevation
  static const double elevation = AppElevation.card;

  /// Product card padding
  static const EdgeInsets padding = EdgeInsets.all(AppSpacing.sm);

  /// Product name max lines
  static const int nameMaxLines = 2;

  /// Product name font size
  static const double nameFontSize = 14.0;

  /// Product price font size
  static const double priceFontSize = 16.0;

  /// Product price font weight
  static const FontWeight priceFontWeight = FontWeight.bold;
}

/// Order card specifications
class OrderCardSpecs {
  OrderCardSpecs._();

  /// Order number font size
  static const double orderNumberFontSize = 16.0;

  /// Order number font weight
  static const FontWeight orderNumberFontWeight = FontWeight.w600;

  /// Order date font size
  static const double dateFontSize = 12.0;

  /// Order total font size
  static const double totalFontSize = 18.0;

  /// Order total font weight
  static const FontWeight totalFontWeight = FontWeight.bold;
}

/// Status badge specifications
class StatusBadgeSpecs {
  StatusBadgeSpecs._();

  /// Badge height
  static const double height = 24.0;

  /// Badge border radius
  static const double borderRadius = 12.0;

  /// Badge padding
  static const EdgeInsets padding = EdgeInsets.symmetric(
    horizontal: AppSpacing.sm,
    vertical: 2.0,
  );

  /// Badge font size
  static const double fontSize = 11.0;

  /// Badge font weight
  static const FontWeight fontWeight = FontWeight.w600;
}

/// Avatar specifications
class AvatarSpecs {
  AvatarSpecs._();

  /// Small avatar size
  static const double sm = 32.0;

  /// Medium avatar size
  static const double md = 48.0;

  /// Large avatar size
  static const double lg = 64.0;

  /// Extra large avatar size
  static const double xl = 96.0;
}

/// Animation durations
class AppDuration {
  AppDuration._();

  /// Short animation: 200ms
  static const Duration short = Duration(milliseconds: 200);

  /// Medium animation: 300ms
  static const Duration medium = Duration(milliseconds: 300);

  /// Long animation: 500ms
  static const Duration long = Duration(milliseconds: 500);

  /// Page transition duration
  static const Duration pageTransition = medium;

  /// Fade in duration
  static const Duration fadeIn = medium;

  /// Shimmer animation duration
  static const Duration shimmer = Duration(milliseconds: 1500);
}

/// Grid specifications
class GridSpecs {
  GridSpecs._();

  /// Product grid cross axis count (columns)
  static const int productGridColumns = 2;

  /// Product grid cross axis spacing
  static const double productGridCrossSpacing = AppSpacing.md;

  /// Product grid main axis spacing
  static const double productGridMainSpacing = AppSpacing.md;

  /// Quick action grid cross axis count
  static const int quickActionColumns = 3;

  /// Quick action grid cross axis spacing
  static const double quickActionCrossSpacing = AppSpacing.md;

  /// Quick action grid main axis spacing
  static const double quickActionMainSpacing = AppSpacing.md;
}

/// List specifications
class ListSpecs {
  ListSpecs._();

  /// List item padding
  static const EdgeInsets itemPadding = EdgeInsets.symmetric(
    horizontal: AppSpacing.md,
    vertical: AppSpacing.sm,
  );

  /// List item divider height
  static const double dividerHeight = 1.0;

  /// List item divider indent
  static const double dividerIndent = AppSpacing.md;
}

/// Image specifications
class ImageSpecs {
  ImageSpecs._();

  /// Product image cache width
  static const int productImageCacheWidth = 400;

  /// Product image cache height
  static const int productImageCacheHeight = 400;

  /// Avatar image cache width
  static const int avatarImageCacheWidth = 200;

  /// Avatar image cache height
  static const int avatarImageCacheHeight = 200;

  /// Banner image cache width
  static const int bannerImageCacheWidth = 800;

  /// Banner image cache height
  static const int bannerImageCacheHeight = 400;
}

/// Screen breakpoints for responsive design
class Breakpoints {
  Breakpoints._();

  /// Small screen (phone)
  static const double sm = 600.0;

  /// Medium screen (tablet)
  static const double md = 960.0;

  /// Large screen (desktop)
  static const double lg = 1280.0;

  /// Extra large screen
  static const double xl = 1920.0;
}