# Bedrock

A foundational design system and UI component library for building consistent, beautiful SwiftUI applications.

## Overview

Bedrock is designed to be the foundation upon which apps are built, providing:

- **Design System**: Consistent spacing, typography, and animations
- **Color Protocols**: Define consistent color naming with custom palettes per app
- **Settings Components**: Ready-to-use toggle, picker, and selector views
- **Utilities**: Common helpers for device detection, debugging, and more

## Installation

Add Bedrock as a dependency in your `Package.swift`:

```swift
dependencies: [
    .package(path: "../Bedrock")
]
```

Then add it to your target:

```swift
.target(
    name: "YourApp",
    dependencies: ["Bedrock"]
)
```

## Usage

### Design Constants

Use the `Design` enum for consistent spacing, sizing, and styling:

```swift
import Bedrock

struct MyView: View {
    var body: some View {
        VStack(spacing: Design.Spacing.medium) {
            Text("Hello")
                .font(.system(size: Design.BaseFontSize.title))
                .padding(Design.Spacing.large)
            
            Button("Tap Me") { }
                .clipShape(.rect(cornerRadius: Design.CornerRadius.medium))
        }
    }
}
```

### Color System

Bedrock provides a **protocol-based color system** that enforces consistent naming while allowing apps to define their own palettes.

#### Using Default Colors

Bedrock includes neutral default colors that work out of the box:

```swift
Text("Primary Text")
    .foregroundStyle(Color.Text.primary)

Text("Secondary Text")
    .foregroundStyle(Color.Text.secondary)

VStack { }
    .background(Color.Surface.primary)
```

#### Creating Custom Color Themes

Apps can define custom color palettes by conforming to the color protocols:

```swift
// In CasinoKit - define casino-themed accent colors
public enum CasinoAccentColors: AccentColorProvider {
    public static let primary = Color(red: 0.9, green: 0.75, blue: 0.3)   // Gold
    public static let light = Color(red: 1.0, green: 0.85, blue: 0.4)
    public static let dark = Color(red: 0.7, green: 0.55, blue: 0.2)
    public static let secondary = Color(red: 0.2, green: 0.7, blue: 0.7) // Teal
}

// Create a complete theme
public enum CasinoTheme: AppColorTheme {
    public typealias Surface = CasinoSurfaceColors
    public typealias Text = DefaultTextColors        // Reuse Bedrock defaults
    public typealias Accent = CasinoAccentColors     // Custom gold accents
    public typealias Button = CasinoButtonColors
    public typealias Status = DefaultStatusColors    // Reuse Bedrock defaults
    public typealias Border = DefaultBorderColors
    public typealias Interactive = DefaultInteractiveColors
}

// Use in views
Button("Deal") { }
    .background(CasinoTheme.Accent.primary)
```

#### Available Color Protocols

| Protocol | Properties |
|----------|------------|
| `SurfaceColorProvider` | primary, secondary, tertiary, overlay, card, groupedFill, sectionFill |
| `TextColorProvider` | primary, secondary, tertiary, disabled, placeholder, inverse |
| `AccentColorProvider` | primary, light, dark, secondary |
| `ButtonColorProvider` | primaryLight, primaryDark, secondary, destructive, cancelText |
| `StatusColorProvider` | success, warning, error, info |
| `BorderColorProvider` | subtle, standard, emphasized, selected |
| `InteractiveColorProvider` | selected, hover, pressed, focus |

### Settings Components

Ready-to-use settings UI components:

```swift
// Toggle with title and subtitle
SettingsToggle(
    title: "Notifications",
    subtitle: "Receive push notifications",
    isOn: $notificationsEnabled
)

// Volume slider
VolumePicker(label: "Volume", volume: $soundVolume)

// Segmented picker
SegmentedPicker(
    title: "Theme",
    options: [("Light", "light"), ("Dark", "dark"), ("Auto", "auto")],
    selection: $theme
)

// Selectable row
SelectableRow(
    title: "Premium Plan",
    subtitle: "Unlock all features",
    isSelected: plan == .premium,
    badge: { BadgePill(text: "$9.99", isSelected: plan == .premium) },
    action: { plan = .premium }
)
```

### Device Detection

Adapt your UI based on device characteristics:

```swift
if DeviceInfo.isPad {
    SidebarView()
} else {
    TabBarView()
}
```

## Design System Reference

### Spacing

| Name | Value | Usage |
|------|-------|-------|
| `xxxSmall` | 1pt | Hairline spacing |
| `xxSmall` | 2pt | Minimal spacing |
| `xSmall` | 4pt | Tight spacing |
| `small` | 8pt | Compact spacing |
| `medium` | 12pt | Default spacing |
| `large` | 16pt | Comfortable spacing |
| `xLarge` | 20pt | Generous spacing |
| `xxLarge` | 24pt | Section spacing |
| `xxxLarge` | 32pt | Large section spacing |

### Opacity

| Name | Value | Usage |
|------|-------|-------|
| `verySubtle` | 0.05 | Barely visible |
| `subtle` | 0.1 | Subtle backgrounds |
| `hint` | 0.2 | Hints and disabled states |
| `light` | 0.3 | Light overlays |
| `medium` | 0.5 | Medium emphasis |
| `strong` | 0.7 | Strong emphasis |
| `heavy` | 0.8 | Heavy overlays |
| `almostFull` | 0.9 | Nearly opaque |

### Default Colors

Default colors use a neutral blue accent. Apps should define custom themes for branding:

| Category | Purpose |
|----------|---------|
| `Color.Surface.*` | Background colors |
| `Color.Text.*` | Text colors |
| `Color.Accent.*` | Accent/highlight colors (default: blue) |
| `Color.Button.*` | Button colors |
| `Color.Status.*` | Success/warning/error colors |
| `Color.Border.*` | Border and divider colors |
| `Color.Interactive.*` | Interactive state colors |

## Requirements

- iOS 18.0+
- macOS 15.0+
- Swift 6.0+