//
//  String+.swift
//  yinmeng-ios
//
//  Created by yinmeng on 2024/2/23.
//

import Foundation
import CommonCrypto
extension String {

	func encrypt() -> String? {
		let str = MAIDESEncryptTool.encryptUseDES(self, key: DesKey)
		return str
	}

	func decrypt() -> String? {
		let str = MAIDESEncryptTool.decryptUseDES(self, key: DesKey)
		return str
	}

	func decrypt(key:String) -> String? {
		let str = MAIDESEncryptTool.decryptUseDES(self, key: key)
		return str
	}

}


extension String {
	/// 截取字符串
	/// - Parameters:
	///   - begin: 开始截取的索引
	///   - count: 需要截取的个数
	/// - Returns: 字符串
	func substring(start: Int, _ count: Int) -> String {
		let begin = index(startIndex, offsetBy: max(0, start))
		let end = index(startIndex, offsetBy: min(count, start + count))
		return String(self[begin..<end])
	}


	/// 判断字符串是否全部空格
	var isBlank: Bool {
		let trimmedStr = self.trimmingCharacters(in: .whitespacesAndNewlines)
		return trimmedStr.isEmpty
	}

	func boundingRect(with constrainedSize: CGSize, font: UIFont, lineSpacing: CGFloat? = nil) -> CGSize {
		let attritube = NSMutableAttributedString(string: self)
		let range = NSRange(location: 0, length: attritube.length)
		attritube.addAttributes([NSAttributedString.Key.font: font], range: range)
		if lineSpacing != nil {
			let paragraphStyle = NSMutableParagraphStyle()
			paragraphStyle.lineSpacing = lineSpacing ?? 0
			attritube.addAttribute(NSAttributedString.Key.paragraphStyle, value: paragraphStyle, range: range)
		}
		let rect = attritube.boundingRect(with: constrainedSize, options: [.usesLineFragmentOrigin, .usesFontLeading], context: nil)
		var size = rect.size
		if let currentLineSpacing = lineSpacing {
			let spacing = size.height - font.lineHeight
			if spacing <= currentLineSpacing && spacing > 0 {
				size = CGSize(width: size.width, height: font.lineHeight)
			}
		}
		return size
	}
}