//
//  UILabel+Extension.swift
//  HealthyZG
//
//  Created by 林 on 2020/7/21.
//  Copyright © 2020 Lin. All rights reserved.
//

import Foundation
import UIKit

extension UILabel {
    /// 删除线
    public func setupStrikethroughStyle(_ withText: String="") {
        guard let text = self.text else { return }
        let attributeText = NSMutableAttributedString(string: text)
        let nsString = NSString(string: text)
        var range = nsString.range(of: text)
        if !withText.isEmpty, text.contains(withText) {
            range = nsString.range(of: withText)
        }
        attributeText.addAttribute(.strikethroughStyle, value: 1, range: range)
        self.attributedText = attributeText
    }
    
    /// 设置¥或单位的字体样式
    public func setupMoneyStyle(moneyValue: String, symbol: String, unit: String, fontStyle: UIFont) {
        let nsString = NSString(string: moneyValue)
        let symbolRange = nsString.range(of: symbol)
        let unitRange = nsString.range(of: unit)
        let attString = NSMutableAttributedString(string: moneyValue)
        attString.addAttributes([NSAttributedString.Key.font: fontStyle], range: symbolRange)
        attString.addAttributes([NSAttributedString.Key.font: fontStyle], range: unitRange)
        self.attributedText = attString
    }
    
    /// 设置符号(比如¥)字体样式
    public func setupMoneyStyle(symbol: String, fontStyle: UIFont) {
        let text = self.text ?? ""
        let nsString = NSString(string: text)
        let symbolRange = nsString.range(of: symbol)
        let attString = NSMutableAttributedString(string: text)
        attString.addAttributes([NSAttributedString.Key.font: fontStyle], range: symbolRange)
        self.attributedText = attString
    }
    
    /// 设置字体样式
    public func setupTextStyle(text: String, font: UIFont, color: UIColor) {
        if let labelText = self.text {
            let nsString = NSString(string: labelText)
            let textRange = nsString.range(of: text)
            let attString = NSMutableAttributedString(string: labelText)
            attString.addAttributes([NSAttributedString.Key.font: font,
                                     NSAttributedString.Key.foregroundColor: color],
                                    range: textRange)
            self.attributedText = attString
        }
    }
    
    public func setupTextStyle(text: String, color: UIColor) {
        if let labelText = self.text {
            let nsString = NSString(string: labelText)
            let textRange = nsString.range(of: text)
            let attString = NSMutableAttributedString(string: labelText)
            attString.addAttributes([NSAttributedString.Key.foregroundColor: color],
                                    range: textRange)
            self.attributedText = attString
        }
    }
}

extension UILabel {
    /**
     设置Label字体、颜色
     */
    public func setupStyle(font: UIFont, textColor: UIColor) {
        self.font = font
        self.textColor = textColor
    }
}

extension UILabel {
    func setLineSpacing(lineSpacing: CGFloat = 0.0) {
        guard let labelText = self.text else { return }
        
        let paragraphStyle = NSMutableParagraphStyle()
        paragraphStyle.lineSpacing = lineSpacing
        
        let attributedString: NSMutableAttributedString
        if let labelAttributedText = self.attributedText {
            attributedString = NSMutableAttributedString(attributedString: labelAttributedText)
        } else {
            attributedString = NSMutableAttributedString(string: labelText)
        }
        
        attributedString.addAttribute(
            .paragraphStyle,
            value: paragraphStyle,
            range: NSMakeRange(0, attributedString.length)
        )
        
        self.attributedText = attributedString
    }
}