//
//  ZyquoTheme.swift
//  Zyquo Atlas
//
//  Author: Simon-Pierre Boucher
//  Mail: contact@spboucher.ai
//
//  The non-color design tokens: typography, spacing, radii, shadows, and layout
//  metrics — views contain zero magic numbers. Colors live in AtlasTheme /
//  BuiltInThemes and are applied live by ThemeEngine (the flagship "Atlas Light"
//  theme is the Phase 4.1 base spec); fonts scale with the user's uiScale via
//  LayoutSettings. Atlas's identity is a balanced teal-indigo "map/atlas" story.
//

import SwiftUI

extension NSColor {
    /// 0xRRGGBB → NSColor (sRGB).
    convenience init(hex: UInt32) {
        self.init(
            srgbRed: CGFloat((hex >> 16) & 0xFF) / 255,
            green: CGFloat((hex >> 8) & 0xFF) / 255,
            blue: CGFloat(hex & 0xFF) / 255,
            alpha: 1
        )
    }
}

// MARK: - Typography

/// Type scale (SF Pro system font; SF Mono for code). Body is 13.5pt/1.45 per
/// the family spec.
enum ZyquoFont {
    /// 20pt semibold — window/section titles.
    static let title = Font.system(size: 20, weight: .semibold)
    /// UI body at a given size (default 13.5).
    static func body(size: Double = 13.5) -> Font {
        .system(size: size, weight: .regular)
    }
    static func bodyEmphasis(size: Double = 13.5) -> Font {
        .system(size: size, weight: .medium)
    }
    /// 12.5pt medium — omnibox / tab titles.
    static let control = Font.system(size: 12.5, weight: .medium)
    /// 11pt — captions, status.
    static let caption = Font.system(size: 11, weight: .regular)
    static func code(size: Double = 12.5) -> Font {
        .system(size: size, weight: .regular, design: .monospaced)
    }
    /// Generous line height for body text (spec: 1.45 → factor 0.45).
    static let bodyLineSpacingFactor: Double = 0.45
}

// MARK: - Spacing, radii, shadows, metrics

/// Spacing scale: 4 / 8 / 12 / 16 / 20 / 24 / 32.
enum ZyquoSpacing {
    static let xxs: CGFloat = 4
    static let xs: CGFloat = 8
    static let sm: CGFloat = 12
    static let md: CGFloat = 16
    static let lg: CGFloat = 20
    static let xl: CGFloat = 24
    static let xxl: CGFloat = 32
}

/// Corner radii: 6 (small controls), 10 (cards/tabs), 14 (floating panels).
enum ZyquoRadius {
    static let small: CGFloat = 6
    static let medium: CGFloat = 10
    static let large: CGFloat = 14
}

/// Shadows: extremely soft, used sparingly (floating panels, popovers).
enum ZyquoShadow {
    static let soft = ShadowStyle(color: .black.opacity(0.06), radius: 12, y: 2)

    struct ShadowStyle {
        let color: Color
        let radius: CGFloat
        var x: CGFloat = 0
        var y: CGFloat = 0
    }
}

/// Fixed layout metrics (chrome must be quiet so web content is the star).
enum ZyquoMetrics {
    static let toolbarHeight: CGFloat = 44
    static let tabBarHeight: CGFloat = 36
    static let tabMinWidth: CGFloat = 120
    static let tabMaxWidth: CGFloat = 240
    static let aiSidebarWidth: CGFloat = 360
    static let hairline: CGFloat = 0.5
}