import SwiftUI

extension Color {
    init(hex: String) {
        let hex = hex.trimmingCharacters(in: CharacterSet.alphanumerics.inverted)
        var int: UInt64 = 0
        Scanner(string: hex).scanHexInt64(&int)
        
        let a, r, g, b: UInt64
        switch hex.count {
        case 3: // RGB (12-bit)
            (a, r, g, b) = (255, (int >> 8) * 17, (int >> 4 & 0xF) * 17, (int & 0xF) * 17)
        case 6: // RGB (24-bit)
            (a, r, g, b) = (255, int >> 16, int >> 8 & 0xFF, int & 0xFF)
        case 8: // ARGB (32-bit)
            (a, r, g, b) = (int >> 24, int >> 16 & 0xFF, int >> 8 & 0xFF, int & 0xFF)
        default:
            (a, r, g, b) = (255, 0, 0, 0)
        }
        
        self.init(
            .sRGB,
            red: Double(r) / 255,
            green: Double(g) / 255,
            blue: Double(b) / 255,
            opacity: Double(a) / 255
        )
    }
    
    static let defaultProjectColors: [Color] = [
        Color(hex: "EF4444"), // Red
        Color(hex: "F97316"), // Orange
        Color(hex: "EAB308"), // Yellow
        Color(hex: "22C55E"), // Green
        Color(hex: "14B8A6"), // Teal
        Color(hex: "06B6D4"), // Cyan
        Color(hex: "3B82F6"), // Blue
        Color(hex: "6366F1"), // Indigo
        Color(hex: "A855F7"), // Purple
        Color(hex: "EC4899"), // Pink
    ]
    
    static func projectColor(for index: Int) -> Color {
        defaultProjectColors[index % defaultProjectColors.count]
    }
}
