//
//  ADHcolor.swift
//  ADHTuanCan
//
//  Created by 敖德亨 on 2023/9/27.
//

import Foundation

import UIKit

extension UIColor {
    
    class func RGBColor(red : CGFloat,green :CGFloat ,blue : CGFloat,alpha : CGFloat) ->UIColor{
        return UIColor(red: red, green: green, blue: blue, alpha: alpha)
    }
    
    class func color(hex:String)->UIColor{
            var cString = hex.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines).uppercased()
        if (cString.hasPrefix("#")) {
            let index = cString.index(cString.startIndex, offsetBy:1)
            cString = cString.substring(from: index)
        }

        if (cString.count != 6) {
            return UIColor.red
        }

            let rIndex = cString.index(cString.startIndex, offsetBy: 2)
            let rString = cString.substring(to: rIndex)
            let otherString = cString.substring(from: rIndex)
            let gIndex = otherString.index(otherString.startIndex, offsetBy: 2)
            let gString = otherString.substring(to: gIndex)
            let bIndex = cString.index(cString.endIndex, offsetBy: -2)
            let bString = cString.substring(from: bIndex)

            var r:CUnsignedInt = 0, g:CUnsignedInt = 0, b:CUnsignedInt = 0;
            Scanner(string: rString).scanHexInt32(&r)
            Scanner(string: gString).scanHexInt32(&g)
            Scanner(string: bString).scanHexInt32(&b)

            return UIColor(red: CGFloat(r) / 255.0, green: CGFloat(g) / 255.0, blue: CGFloat(b) / 255.0, alpha: CGFloat(1))
        }
    
    class func color(hex:String,alpha:CGFloat)->UIColor{
        var cString = hex.trimmingCharacters(in: CharacterSet.whitespacesAndNewlines).uppercased()
        if (cString.hasPrefix("#")) {
            let index = cString.index(cString.startIndex, offsetBy:1)
            cString = cString.substring(from: index)
        }
        
        if (cString.count != 6) {
            return UIColor.red
        }
        
        let rIndex = cString.index(cString.startIndex, offsetBy: 2)
        let rString = cString.substring(to: rIndex)
        let otherString = cString.substring(from: rIndex)
        let gIndex = otherString.index(otherString.startIndex, offsetBy: 2)
        let gString = otherString.substring(to: gIndex)
        let bIndex = cString.index(cString.endIndex, offsetBy: -2)
        let bString = cString.substring(from: bIndex)
        
        var r:CUnsignedInt = 0, g:CUnsignedInt = 0, b:CUnsignedInt = 0;
        Scanner(string: rString).scanHexInt32(&r)
        Scanner(string: gString).scanHexInt32(&g)
        Scanner(string: bString).scanHexInt32(&b)
        
        return UIColor(red: CGFloat(r) / 255.0, green: CGFloat(g) / 255.0, blue: CGFloat(b) / 255.0, alpha: CGFloat(alpha))
    }
    
}