KittensTravelNotes/PodCode/Ex/UIColor+Ex.swift

//
//  UIColor+Ex.swift
//  KittensTravelNotes
//
//  Created by 100Years on 2025/7/6.
//

import SwiftUI
public extension UIColor {
    /// 返回一个随机颜色
    static var random: UIColor {
        return UIColor(
            red: CGFloat.random(in: 0...1),
            green: CGFloat.random(in: 0...1),
            blue: CGFloat.random(in: 0...1),
            alpha: 1.0
        )
    }
    
    static func fromHex(_ hex: String, alpha: CGFloat = 1.0) -> UIColor {
        var cleanedHex = hex.trimmingCharacters(in: .whitespacesAndNewlines).uppercased()
        
        // Remove leading "#" if present
        if cleanedHex.hasPrefix("#") {
            cleanedHex.removeFirst()
        }
        
        // Ensure valid hex length
        guard cleanedHex.count == 6 else {
            return UIColor.clear // Return clear color for invalid input
        }
        
        // Extract RGB components
        var rgbValue: UInt64 = 0
        Scanner(string: cleanedHex).scanHexInt64(&rgbValue)
        
        let red = CGFloat((rgbValue & 0xFF0000) >> 16) / 255.0
        let green = CGFloat((rgbValue & 0x00FF00) >> 8) / 255.0
        let blue = CGFloat(rgbValue & 0x0000FF) / 255.0
        
        return UIColor(red: red, green: green, blue: blue, alpha: alpha)
    }
    
    var color: Color {
        return Color(self)
    }

}