//
//  UIView+SPAdd.swift
//  ShortPlay
//
//  Created by 曾觉新 on 2025/4/9.
//

import UIKit
import SnapKit

extension UIView {
    fileprivate struct AssociatedKeys {
        static var sp_tapGesture: Int?
        static var sp_effect: Int?
        static var sp_circulars: Int?
    }
    @objc public static func sp_Awake() {
        sp_swizzled_instanceMethod("sp", oldClass: self, oldSelector: "layoutSubviews", newClass: self)
    }
    
    @objc func sp_layoutSubviews() {
        sp_layoutSubviews()
        _updateRadius()
        
        if let effectView = effectView, effectView.frame != self.bounds {
            effectView.frame = self.bounds
        }
    }
    
    ///获得当前的响应视图
    func getFirstResponderView() -> UIView? {
        var resultView: UIView? = nil
        
        for view in self.subviews {
            if view.isFirstResponder {
                resultView = view
                break
            } else {
                resultView = view.getFirstResponderView()
                if resultView != nil {
                    break
                }
            }
        }
        return resultView
    }
}


//MARK: --------------   模糊效果  --------------
extension UIView {
    private var effectView: UIVisualEffectView? {
        get {
            return objc_getAssociatedObject(self, &AssociatedKeys.sp_effect) as? UIVisualEffectView
        }
        set {
            objc_setAssociatedObject(self, &AssociatedKeys.sp_effect, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
        }
    }
    
    ///添加模糊效果
    func addEffectView(style: UIBlurEffect.Style = .dark) {
        if self.effectView == nil {
            let blur = UIBlurEffect(style: style)
            let effectView = UIVisualEffectView(effect: blur)
            self.addSubview(effectView)
            self.sendSubviewToBack(effectView)
            
            self.effectView = effectView
        }
    }
    ///删除模糊效果
    func removeEffectView() {
        self.effectView?.removeFromSuperview()
        self.effectView = nil
    }
}

//MARK: --------------   圆角  --------------
extension UIView {
    

    private var circulars: SPCirculars? {
        get {
            return objc_getAssociatedObject(self, &AssociatedKeys.sp_circulars) as? SPCirculars
        }
        set {
            objc_setAssociatedObject(self, &AssociatedKeys.sp_circulars, newValue, .OBJC_ASSOCIATION_RETAIN_NONATOMIC)
        }
    }
    
    func addRadius(topLeft: CGFloat, topRight: CGFloat, bottomLeft: CGFloat, bottomRight: CGFloat) {
        //清空其它设置方法
        self.circulars = SPCirculars(topLeft: topLeft, topRight: topRight, bottomLeft: bottomLeft, bottomRight: bottomRight)
        _updateRadius()
    }
    
    private func _updateRadius() {
        guard let circulars = self.circulars else { return }
        let rect = self.bounds
        
        let path = CGMutablePath()
        path.addRadiusRectangle(circulars, rect: rect)
        
        let maskLayer = CAShapeLayer()
        maskLayer.frame = self.bounds
        maskLayer.path = path
        self.layer.mask = maskLayer
    }
    
}