import SwiftUI

// MARK: - Design Tokens

extension Color {
    // Backgrounds — kein reines Schwarz, sondern Mitternachtsblau
    static let nightBase    = Color(hex: "080810")  // Haupt-Hintergrund
    static let nightSurface = Color(hex: "0E0E1C")  // Karten, Sheets
    static let nightRaised  = Color(hex: "151528")  // Elevated surfaces
    static let nightBorder  = Color(white: 1, opacity: 0.06)

    // Text
    static let nightPrimary   = Color(hex: "EEEEF8")
    static let nightSecondary = Color(hex: "64647A")
    static let nightTertiary  = Color(hex: "3A3A52")

    // Akzente
    static let nightPurple     = Color(hex: "7B4FE8")
    static let nightPurpleSoft = Color(hex: "9B77F0")
    static let nightGreen      = Color(hex: "34D399")
    static let nightRed        = Color(hex: "F27474")

    // Hex initializer
    init(hex: String) {
        let h = hex.trimmingCharacters(in: .alphanumerics.inverted)
        var int: UInt64 = 0
        Scanner(string: h).scanHexInt64(&int)
        let a, r, g, b: UInt64
        switch h.count {
        case 6: (a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
        case 8: (a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
        default:(a, r, g, b) = (255, 255, 255, 255)
        }
        self.init(.sRGB,
                  red:     Double(r) / 255,
                  green:   Double(g) / 255,
                  blue:    Double(b) / 255,
                  opacity: Double(a) / 255)
    }
}

// MARK: - Mood (passt hier semantisch besser rein als in Post.swift)

extension Mood {
    var color: Color {
        switch self {
        case .still:          return Color(hex: "4A9EFF")
        case .unruhig:        return Color(hex: "FF8C42")
        case .melancholisch:  return Color(hex: "A855F7")
        case .aufgedreht:     return Color(hex: "10D08A")
        }
    }
    var label: String { rawValue }
    var emoji: String {
        switch self {
        case .still:         return "◌"
        case .unruhig:       return "◎"
        case .melancholisch: return "◑"
        case .aufgedreht:    return "◉"
        }
    }
}

// MARK: - Typography helpers

extension Font {
    static func nightTitle(_ size: CGFloat) -> Font {
        .system(size: size, weight: .bold, design: .rounded)
    }
    static func nightBody(_ size: CGFloat) -> Font {
        .system(size: size, weight: .regular)
    }
    static func nightMono(_ size: CGFloat) -> Font {
        .system(size: size, design: .monospaced)
    }
    static func nightLabel(_ size: CGFloat, weight: Font.Weight = .medium) -> Font {
        .system(size: size, weight: weight)
    }
}