//
//  VerificationPopView.swift
//  QuickLocation
//
//  Created by 八条 on 2026/6/10.
//

import UIKit
import RxSwift
import RxCocoa
import IQKeyboardManagerSwift

class VerificationPopView: UIView {

    private static let shared = VerificationPopView(frame: CGRect(origin: .zero, size: kScreenSize))

    var disposeBag = DisposeBag()
    
    private var completion: (() -> Void)?
    
    static func show(completion: @escaping (() -> Void)) {
        guard let superView = kKeyWindow else {
            return
        }
        
        if VerificationPopView.shared.superview != nil {
            VerificationPopView.shared.removeFromSuperview()
            VerificationPopView.shared.bgView.frame = .zero
        }
        
        VerificationPopView.shared.num1Lab.text = "\(Int.random(in: 1...9))"
        VerificationPopView.shared.num2Lab.text = "\(Int.random(in: 1...9))"
        VerificationPopView.shared.resultTF.text = ""
        
        VerificationPopView.shared.bgView.alpha = 1
        VerificationPopView.shared.bgView.frame = CGRect(x: 0, y: 0, width: kScreenWidth, height: kScreenHeight)
        superView.addSubview(VerificationPopView.shared)
        superView.bringSubviewToFront(VerificationPopView.shared)
        
        UIView.animate(withDuration: 0.25) {
            VerificationPopView.shared.bgView.alpha = 1
        } completion: { _ in
            VerificationPopView.shared.resultTF.becomeFirstResponder()
        }
        
        VerificationPopView.shared.completion = {
            completion()
            VerificationPopView.dismiss()
        }
        
        IQKeyboardManager.shared.resignOnTouchOutside = false
    }
    
    /// 关闭
    static func dismiss() {
        guard VerificationPopView.shared.superview != nil else { return }

        UIView.animate(withDuration: 0.25, delay: 0, options: [.curveEaseIn]) {
            VerificationPopView.shared.bgView.alpha = 0
        } completion: { _ in
            VerificationPopView.shared.removeFromSuperview()
            IQKeyboardManager.shared.resignOnTouchOutside = true
        }
    }
    
    private func setupRx() {
        resultTF.rx.text
                    .bind(to: resultLab.rx.text)
                    .disposed(by: disposeBag)
        
        resultTF.rx.text.orEmpty
            .subscribe(onNext: { [weak self] text in
                guard let self = self,
                let num1 = self.num1Lab.text,
                      let num2 = self.num2Lab.text else { return }
                let result = num1.integer + num2.integer
                
                if !text.isEmpty {
                    self.resultIconView.image = UIImage(named: result == text.integer ? "Popup/correct" : "Popup/error")
                    self.confirmBtn.isEnabled = result == text.integer
                }
                else {
                    self.resultIconView.image = nil
                    self.confirmBtn.isEnabled = false
                }
            })
            .disposed(by: disposeBag)
        
        confirmBtn.rx.tap.subscribe(onNext: { _ in
            self.completion?()
        }).disposed(by: disposeBag)
        
        closeBtn.rx.tap.subscribe(onNext: { _ in
            VerificationPopView.dismiss()
            
        }).disposed(by: disposeBag)
    }
    
    private lazy var bgView: UIView = {
        let view = UIView()
        view.backgroundColor = .black.withAlphaComponent(0.5)
        return view
    }()
    
    lazy var popView: UIView = {
        let view = UIView()
        view.backgroundColor = .clear
        return view
    }()
    
    lazy var popBgView: UIView = {
        let view = UIView()
        view.backgroundColor = .white
        view.cornerRadius = 30
        return view
    }()
    
    lazy var logoImgView: UIImageView = {
        let view = UIImageView(image: UIImage(named: "Popup/bell"))
        return view
    }()
    
    lazy var headerBgImg: UIImageView = {
        let view = UIImageView(image: UIImage(named: "Popup/header_bg"))
        view.contentMode = .scaleAspectFill
        return view
    }()
    
    lazy var titleLab: UILabel = {
        let label = UILabel()
        label.text = "确定要离开这个圈子吗？"
        label.font = .systemFont(ofSize: 20, weight: .bold)
        label.textColor = UIColor(hexStr: "#1A1A1A")
        label.textAlignment = .center
        label.numberOfLines = 0
        return label
    }()
    
    lazy var contentLab: UILabel = {
        let label = UILabel()
        label.text = "您离开后将解散圈子，确定 要解散吗？"
        label.font = .systemFont(ofSize: 14, weight: .medium)
        label.textColor = UIColor(hexStr: "#767676")
        label.textAlignment = .center
        label.numberOfLines = 0
        return label
    }()
    
    lazy var tipsLab: UILabel = {
        let label = UILabel()
        label.text = "请验证：填写组合数字，相加后需等于给定数值"
        label.font = .systemFont(ofSize: 8, weight: .medium)
        label.textColor = UIColor(hexStr: "#999999")
        label.textAlignment = .center
        label.numberOfLines = 0
        return label
    }()
    
    lazy var equationView: UIView = {
        let view = UIView()
        view.backgroundColor = .clear
        
        let addLab = UILabel()
        addLab.text = "+"
        addLab.font = .systemFont(ofSize: 16, weight: .medium)
        addLab.textColor = UIColor(hexStr: "#999999")
        
        let equalLab = UILabel()
        equalLab.text = "="
        equalLab.font = .systemFont(ofSize: 16, weight: .medium)
        equalLab.textColor = UIColor(hexStr: "#999999")
        
        view.addSubview(num1View)
        view.addSubview(addLab)
        view.addSubview(num2View)
        view.addSubview(equalLab)
        view.addSubview(resultView)
        view.addSubview(resultIconView)
        
        num1View.layoutChain
            .left()
            .edgesVertical()
            .width(30)
            .height(30)
        
        addLab.layoutChain
            .leftToRightOfView(num1View, offset: 13)
            .centerY()
        
        num2View.layoutChain
            .topToView(num1View)
            .leftToRightOfView(addLab, offset: 13)
            .width(30)
            .height(30)
        
        equalLab.layoutChain
            .leftToRightOfView(num2View, offset: 13)
            .centerY()
        
        resultView.layoutChain
            .topToView(num1View)
            .leftToRightOfView(equalLab, offset: 13)
            .height(30)
            .width(30)
        
        resultIconView.layoutChain
            .leftToRightOfView(resultView, offset: 10)
            .centerY()
            .right()
            
        return view
    }()
    
    lazy var num1View: UIView = {
        let view = UIView()
        view.backgroundColor = UIColor(hexStr: "#EFF9FF")
        view.cornerRadius = 2
        
        view.addSubview(num1Lab)
        num1Lab.layoutChain
            .edges()
        
        return view
    }()
    
    lazy var num1Lab: UILabel = {
        let label = UILabel()
        label.font = .systemFont(ofSize: 16, weight: .medium)
        label.textColor = UIColor(hexStr: "#666666")
        label.textAlignment = .center
        return label
    }()
    
    lazy var num2View: UIView = {
        let view = UIView()
        view.backgroundColor = UIColor(hexStr: "#EFF9FF")
        view.cornerRadius = 2
        
        view.addSubview(num2Lab)
        num2Lab.layoutChain
            .edges()
        return view
    }()
    
    lazy var num2Lab: UILabel = {
        let label = UILabel()
        label.font = .systemFont(ofSize: 16, weight: .medium)
        label.textColor = UIColor(hexStr: "#666666")
        label.textAlignment = .center
        return label
    }()
    
    lazy var resultView: UIView = {
        let view = UIView()
        view.backgroundColor = UIColor(hexStr: "#5CBBFF")
        view.cornerRadius = 2
        
        view.addSubview(resultTF)
        view.addSubview(resultLab)
        resultLab.layoutChain
            .edges(all: 4)
        return view
    }()
    
    lazy var resultTF: UITextField = {
        let tf = UITextField()
        tf.keyboardType = .numberPad
        tf.returnKeyType = .done
        tf.isHidden = true
        return tf
    }()
    
    lazy var resultLab: UILabel = {
        let label = UILabel()
        label.font = .systemFont(ofSize: 16, weight: .medium)
        label.textColor = .white//UIColor(hexStr: "#16B3FF")
        label.textAlignment = .center
        return label
    }()
    
    lazy var resultIconView: UIImageView = {
        let view = UIImageView()
        view.backgroundColor = .clear
        return view
    }()
    
    lazy var confirmBtn: UIButton = {
        let btn = UIButton(type: .custom)
        btn.setTitle("是", for: .normal)
        btn.setTitleColor(UIColor(hexStr: "#16B3FF"), for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 16, weight: .medium)
        btn.backgroundColor = .clear
        btn.isEnabled = false
        return btn
    }()
    
    lazy var closeBtn: UIButton = {
        let btn = UIButton(type: .custom)
        btn.setTitle("否", for: .normal)
        btn.setTitleColor(UIColor(hexStr: "#0F2846"), for: .normal)
        btn.titleLabel?.font = .systemFont(ofSize: 16, weight: .medium)
        btn.setBackgroundImage(UIImage(named: "Common/button_bg_2"), for: .normal)
        btn.cornerRadius = 25
        return btn
    }()
    
    // MARK: - Init
    override init(frame: CGRect) {
        super.init(frame: frame)
        backgroundColor = .clear
        addSubview(bgView)
        bgView.addSubview(popView)
        popView.addSubview(popBgView)
        popView.addSubview(logoImgView)
        popBgView.addSubview(headerBgImg)
        popBgView.addSubview(titleLab)
        popBgView.addSubview(contentLab)
        popBgView.addSubview(tipsLab)
        popBgView.addSubview(equationView)
        popBgView.addSubview(confirmBtn)
        popBgView.addSubview(closeBtn)
        
        popView.layoutChain
            .centerY(self, offset: -40)
            .centerX()
            .width(315)
        
        popBgView.layoutChain.edges()
        
        logoImgView.layoutChain
            .left(16)
            .top(-45)
            .width(109)
            .height(109)
        
        headerBgImg.layoutChain
            .edges(excludingEdge: .bottom)
            .heightToWidth(100/315)
        
        titleLab.layoutChain
            .top(53)
            .centerX()
        
        contentLab.layoutChain
            .topToBottomOfView(titleLab, offset: 10)
            .edgesHorzontal(20)
        
        tipsLab.layoutChain
            .topToBottomOfView(contentLab, offset: 8)
            .centerX()
        
        equationView.layoutChain
            .topToBottomOfView(tipsLab, offset: 6)
            .centerX()
            .height(30)
        
        closeBtn.layoutChain
            .topToBottomOfView(equationView, offset: 20)
            .edgesHorzontal(20)
            .height(50)
        
        confirmBtn.layoutChain
            .topToBottomOfView(closeBtn, offset: 10)
            .edgesHorzontal(20)
            .height(50)
            .bottom(10)
        
        setupRx()
    }
    
    required init?(coder aDecoder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }

    override func layoutSubviews() {
        super.layoutSubviews()
        
    }

}