//
//  QSLHomeFriendView.swift
//  QuickSearchLocation
//
//  Created by mac on 2024/4/12.
//

import UIKit
import YYText
import SnapKit

enum FriendViewLocation {
    case ScrollTop
    case ScrollCenter
    case ScrollBottom
}

protocol QSLHomeFriendViewDelegate: NSObjectProtocol {
    
    func refreshBtnAction()
    
    func homeFriPhoneViewClick()
    
    func routeBtnAction(model: QSLUserModel)
    
    func locateBtnAction(model: QSLUserModel)
    
    func addFriendAction(isSmall: Bool)
    
    func viewDidScroll()
}

class QSLHomeFriendView: UIView {
    
    weak var delegate: QSLHomeFriendViewDelegate?
    // 动态约束处理
    var couponViewTopConstraint: Constraint? = nil
    private var friBgViewTopConstraint: Constraint? // 新增：保存friBgView的顶部约束
    
    var viewModel:QSLHomeViewModel? {
        didSet {
            friTableView.reloadData()
        }
    }
    
    /// 位置
    var scrollLocation: FriendViewLocation?
    /// 滑动到最后停下来的位置
    var scrollStopY: CGFloat?
    /// 滑动顶部距离顶部的距离
    var scrollTopHeight: CGFloat?
    /// 滑动中间距离顶部的距离
    var scrollCenterHeight: CGFloat?
    /// 滑动底部距离顶部的距离
    var scrollBottomHeight: CGFloat?
    
    lazy var friMapLogoImageView: UIImageView = {
       
        let imageView = UIImageView()
        imageView.isHidden = true
        imageView.image = UIImage(named: "home_friends_map_logo")
        return imageView
    }()
    
    lazy var friExpandButton: UIButton = {
       
        let button = UIButton(type: .custom)
        button.backgroundColor = UIColor.hexStringColor(hexString: "#333333", alpha: 0.6)
        button.addRadius(radius: 2)
        return button
    }()
    
    lazy var refreshButton: UIButton = {
        
        let button = UIButton(type: .custom)
        button.setBackgroundImage(UIImage(named: "home_refresh_btn"), for: .normal)
        button.addTarget(self, action: #selector(refreshBtnAction), for: .touchUpInside)
        return button
    }()

    lazy var couponView: UIImageView = {
        let view = UIImageView()
        view.image = UIImage(named: "home_activity_bg")
        view.isUserInteractionEnabled = true
        view.isHidden = true
        let tapG = UITapGestureRecognizer.init(target: self, action: #selector(unlockBtnAction))
        view.addGestureRecognizer(tapG)
        return view
    }()
    
    lazy var couponLabel: YYLabel = {
        let label = YYLabel()
        return label
    }()
    
    lazy var countdownLabel: QSLCountdownView = {
        let label = QSLCountdownView(frame: CGRectMake(0, 0, QSLConst.qsl_kScreenW - 24.rpx, 17.rpx),type: 1)
        return label
    }()
    
    lazy var couponBtn: UILabel = {
        let label = UILabel()
        label.gradientBackgroundColor(color1: UIColor.hexStringColor(hexString: "#FFFEF3", alpha: 1), color2: UIColor.hexStringColor(hexString: "#FFE6C0", alpha: 1), width: 65.rpx, height: 28.rpx, direction: .horizontal)
        label.text("去使用")
        label.textAlignment = .center
        label.font = UIFont.textM(14)
        label.textColor = (UIColor.hexStringColor(hexString: "#3A331C"))
        label.addRadius(radius: 14.rpx)
        return label
    }()
    
    lazy var friBgView: UIView = {
        
        let view = UIView()
        
        view.clipsToBounds = true
        view.backgroundColor = QSLColor.backGroundColor
        view.addRadius(radius: 12.rpx)
        
        return view
    }()
    
    lazy var friHeaderView: UIView = {
      
        let view = UIView(frame: CGRect(x: 0, y: 0, width: QSLConst.qsl_kScreenW, height: 61.rpx))
        if let image = UIImage.gradient([UIColor.hexStringColor(hexString: "#FFFFFF", alpha: 1), UIColor.hexStringColor(hexString: "#FFFFFF", alpha: 0)], size: CGSize(width: qsl_kScreenW, height: 61.rpx), locations: [0, 1], direction: .vertical) {
            view.backgroundColor = UIColor(patternImage: image)
        }
        view.addFourCorner(topLeft: 12.rpx, topRight: 12.rpx, bottomLeft: 0, bottomRight: 0)
        return view
    }()
    
    lazy var friHeaderTitleIcon: UIImageView = {
      
        let imageView = UIImageView()
        imageView.image = UIImage(named: "home_friends_header_title")
        return imageView
    }()
    
    lazy var friHeaderAddBtn: UIButton = {
       
        let btn = UIButton()
        btn.setBackgroundImage(UIImage(named: "home_friends_header_add_btn_bg"), for: .normal)
        btn.image(UIImage(named: "home_friends_header_add_icon"))
        btn.title("查找好友")
        btn.mediumFont(15)
        btn.textColor(.white)
        btn.setImageTitleLayout(.imgLeft, spacing: 0)
        btn.addTarget(self, action: #selector(topAddButtonAction), for: .touchUpInside)
        return btn
    }()
    
    lazy var friTableView: UITableView = {
        
        let tableView = UITableView(frame: .zero, style: .grouped)
        tableView.backgroundColor = .clear
        tableView.separatorStyle = .none
        tableView.showsVerticalScrollIndicator = false
        tableView.delegate = self
        tableView.dataSource = self
        tableView.tableViewNeverAdjustContentInset()
        tableView.bounces = false
        tableView.isUserInteractionEnabled = true
        tableView.isScrollEnabled = false
        tableView.contentInsetAdjustmentBehavior = .never
        tableView.register(cellClass: QSLHomeFriendTableViewCell.self)
        
        return tableView
    }()
    
    override init(frame: CGRect) {
        super.init(frame: frame)
        
        self.scrollCenterHeight = self.qsl_top
        self.scrollBottomHeight = qsl_kScreenH - qsl_kTabbarFrameH - 56 - 40
        self.setupUI()
        self.addPanAction()
        
        NotificationCenter.default.addObserver(
                    self,
                    selector: #selector(handleCouponNotification(_:)),
                    name: Notification.Name("QSLHomeUpdateCouponViewNoti"),
                    object: nil
                )
        //更新首页优惠券价格
        NotificationCenter.default.addObserver(
                    self,
                    selector: #selector(refreshCouponNotification(_:)),
                    name: Notification.Name("QSLHomeRefreshCouponViewNoti"),
                    object: nil
                )
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    @objc func refreshBtnAction() {
        
        delegate?.refreshBtnAction()
    }

}

// MARK: - 设置UI
extension QSLHomeFriendView {
    
    func setupUI() {
        addSubview(couponView)
        couponView.addSubview(couponBtn)
        couponView.addSubview(couponLabel)
        couponView.addSubview(countdownLabel)
 
        addSubview(friBgView)
        addSubview(friTableView)
        
        addSubview(friMapLogoImageView)
        addSubview(friExpandButton)
        addSubview(refreshButton)
        
        friBgView.addSubview(friHeaderView)
        friHeaderView.addSubview(friHeaderTitleIcon)
        friHeaderView.addSubview(friHeaderAddBtn)
        
        friMapLogoImageView.snp.makeConstraints { make in
            make.size.equalTo(CGSize(width: 62, height: 20))
            make.top.equalTo(0)
            make.left.equalTo(12)
        }
        
        friExpandButton.snp.makeConstraints { make in
            make.size.equalTo(CGSize(width: 80, height: 4))
            make.top.equalTo(friMapLogoImageView.snp.bottom).offset(8)
            make.centerX.equalTo(snp.centerX)
        }

        // couponView 的约束（初始时设为隐藏）
        couponView.snp.makeConstraints { make in
            make.left.equalTo(8.rpx)
            make.right.equalTo(-8.rpx)
            make.height.equalTo(58.rpx)
            couponViewTopConstraint = make.top.equalTo(friExpandButton.snp.bottom).offset(8.rpx).constraint
        }
        
        couponLabel.snp.makeConstraints { make in
            make.height.equalTo(22.rpx)
            make.top.equalTo(10.rpx)
            make.left.equalTo(60.rpx)
            make.right.equalTo(-12.rpx)
        }
        
        couponBtn.snp.makeConstraints { make in
            make.height.equalTo(28.rpx)
            make.width.equalTo(65.rpx)
            make.right.equalTo(-12.rpx)
            make.centerY.equalToSuperview()
        }
        
        countdownLabel.snp.makeConstraints { make in
            make.height.equalTo(17.rpx)
            make.top.equalTo(couponLabel.snp.bottom).offset(0)
            make.left.equalTo(60.rpx)
            make.right.equalTo(couponBtn.snp.left).offset(-10.rpx)
        }

        friBgView.snp.makeConstraints { make in
            friBgViewTopConstraint = make.top.equalTo(friExpandButton.snp.bottom).offset(8.rpx).constraint
            make.left.bottom.right.equalToSuperview()
        }
        
        refreshButton.snp.makeConstraints { make in
            make.size.equalTo(CGSize(width: 40.rpx, height: 40.rpx))
            make.right.equalTo(-8.rpx)
            make.bottom.equalTo(friBgView.snp.top).offset(-12.rpx)
        }
        
        friHeaderView.snp.makeConstraints { make in
            make.left.right.equalTo(0)
            make.height.equalTo(61.rpx)
            make.top.equalTo(0)
        }
        
        friHeaderTitleIcon.snp.makeConstraints { make in
            make.size.equalTo(CGSize(width: 82.rpx, height: 26.5.rpx))
            make.left.equalTo(16.rpx)
            make.top.equalTo(16.rpx)
        }
        
        friHeaderAddBtn.snp.makeConstraints { make in
            make.size.equalTo(CGSize(width: 106.rpx, height: 32.rpx))
            make.right.equalTo(-8.rpx)
            make.centerY.equalTo(friHeaderTitleIcon.snp.centerY)
        }
        
        friTableView.snp.makeConstraints { make in
            make.left.equalTo(0)
            make.right.equalTo(0)
            make.top.equalTo(friBgView.snp.top).offset(50.rpx)
            make.bottom.equalTo(-12.rpx)
        }
    }
}

// MARK: - 点击事件
extension QSLHomeFriendView {
    @objc func unlockBtnAction(){
        QSEventHandle.eventPush(eventName: QSLGravityConst.home_coupon_click)

        QSLJumpManager.shared.unlockBtnAction()
    }
    
    @objc func homeFriPhoneViewAction() {
        delegate?.homeFriPhoneViewClick()
    }
    
    @objc func topAddButtonAction() {
        delegate?.addFriendAction(isSmall: true)
    }
}

extension QSLHomeFriendView: QSLHomeFriendTableViewCellDelegate {
    
    func routeBtnAction(model: QSLUserModel) {
        delegate?.routeBtnAction(model: model)
    }
    
    func locateBtnAction(model: QSLUserModel) {
        delegate?.locateBtnAction(model: model)
    }
    
    @objc private func handleCouponNotification(_ notification: Notification) {
        guard let shouldShow = notification.userInfo?["showCoupon"] as? Bool else { return }
        
        updateCouponViewVisibility(show: shouldShow)
    }
    
    @objc private func refreshCouponNotification(_ notification: Notification) {
        refreshCouponView()
    }
    
    func refreshCouponView(){
        if let model = QSLCountdownManager.shared.selectGood {
            let amount : Int = Int((model.originalAmount - model.amount) / 100)
            
            let attr = NSMutableAttributedString()
            
            let firstText = "您有一订单未支付专属优惠券 "
            let firstAttr = NSMutableAttributedString(string: firstText)
            firstAttr.yy_font = UIFont.textM(10)
            firstAttr.yy_color = UIColor.white
            attr.append(firstAttr)
            
            if amount > 0 {
                let secondText = "-¥\(amount)"
                let secondAttr = NSMutableAttributedString(string: secondText)
                secondAttr.yy_font = UIFont.textB(18)
                secondAttr.yy_color = UIColor.hexStringColor(hexString: "#E1E3A3")
                attr.append(secondAttr)
            }
            
            self.couponLabel.attributedText = attr
            
            if(self.countdownLabel.label.text != nil){
                return
            }
            
            QSLCountdownManager.shared.updateHandler = { [weak self] timeString in
                if let curVC = self?.rootViewController(){
                    if(curVC.isKind(of: QSLHomeController.self)){
                        self?.countdownLabel.updateCountdownText(timeString)
                    }
                }
            }
            QSLCountdownManager.shared.finishHandler  = { [weak self] in
                self?.updateCouponViewVisibility(show: false)
            }
            QSLCountdownManager.shared.startCountdown()
            
        }
    }
    
    private func updateCouponViewVisibility(show: Bool) {
        if(couponView.isHidden == !show){
            self.refreshCouponView()
            return
        }
        couponView.isHidden = !show
        
        if (show) {
            self.refreshCouponView()
            
            couponViewTopConstraint?.update(offset: 8.rpx)
            friBgViewTopConstraint?.update(offset: 8.rpx) // 修改这里
            friBgView.snp.remakeConstraints { make in
                make.top.equalTo(couponView.snp.bottom).offset(0)
                make.left.bottom.right.equalToSuperview()
            }
            
            refreshButton.snp.remakeConstraints { make in
                make.size.equalTo(CGSize(width: 40.rpx, height: 40.rpx))
                make.right.equalTo(-8.rpx)
                make.bottom.equalTo(couponView.snp.top).offset(-12.rpx)
            }
            
        } else {
            couponViewTopConstraint?.update(offset: 0)
            friBgView.snp.remakeConstraints { make in
                make.top.equalTo(friExpandButton.snp.bottom).offset(8.rpx)
                make.left.bottom.right.equalToSuperview()
            }
            
            refreshButton.snp.remakeConstraints { make in
                make.size.equalTo(CGSize(width: 40.rpx, height: 40.rpx))
                make.right.equalTo(-8.rpx)
                make.bottom.equalTo(friBgView.snp.top).offset(-12.rpx)
            }
        }
        
        UIView.animate(withDuration: 0.3) {
            self.layoutIfNeeded()
        }
    }
}

// MARK: - 添加滑动逻辑
extension QSLHomeFriendView: UIGestureRecognizerDelegate {
    
    func addPanAction() {

        let pan = UIPanGestureRecognizer(target: self, action: #selector(panAction))
        pan.delegate = self
        self.addGestureRecognizer(pan)
    }
    
    @objc func panAction(pan: UIPanGestureRecognizer) {
        
        let point = pan.translation(in: self)
        if let scrollStopY = self.scrollStopY, scrollStopY > 0 {
            pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
            return
        }
        
        self.qsl_top += point.y
        if let scrollTopHeight = self.scrollTopHeight, self.qsl_top < scrollTopHeight {
            self.qsl_top = scrollTopHeight
        }
        
        if let scrollBottomHeight = self.scrollBottomHeight, self.qsl_top > scrollBottomHeight {
            self.qsl_top = scrollBottomHeight
        }
        
        if pan.state == .ended || pan.state == .cancelled {
            
            let velocity = pan.velocity(in: self)
            let speed = 350.0
            
            if let scrollLocation = self.scrollLocation {
                switch scrollLocation {
                case .ScrollTop:
                    if velocity.y < -speed {
                        self.scrollToLocation(type: .ScrollTop)
                        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
                        return
                    } else if velocity.y > speed {
                        self.scrollToLocation(type: .ScrollCenter)
                        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
                        return
                    }
                    break
                case .ScrollCenter:
                    if velocity.y < -speed {
                        self.scrollToLocation(type: .ScrollTop)
                        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
                        return
                    } else if velocity.y > speed {
                        self.scrollToLocation(type: .ScrollBottom)
                        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
                        return
                    }
                    break
                case .ScrollBottom:
                    if velocity.y < -speed {
                        self.scrollToLocation(type: .ScrollCenter)
                        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
                        return
                    } else if velocity.y > speed {
                        self.scrollToLocation(type: .ScrollBottom)
                        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
                        return
                    }
                    break
                }
            }
            
            if self.qsl_top < (qsl_kScreenH - qsl_kTabbarBottom) / 4 {
                self.scrollToLocation(type: .ScrollTop)
            } else if self.qsl_top < (qsl_kScreenH - qsl_kTabbarBottom) / 4 * 3 && self.qsl_top > (qsl_kScreenH - qsl_kTabbarBottom) / 4 {
                self.scrollToLocation(type: .ScrollCenter)
            } else {
                self.scrollToLocation(type: .ScrollBottom)
            }
        }
        
        pan.setTranslation(CGPoint(x: 0, y: 0), in: self)
    }
    
    func scrollToLocation(type: FriendViewLocation) {
        
        let animation = CASpringAnimation(keyPath: "position.y")
        animation.damping = 10
        animation.stiffness = 200
        animation.mass = 1
        animation.initialVelocity = 10
        animation.duration = animation.settlingDuration
//        animation.fromValue = self.friPhoneView.layer.position.y
//        animation.toValue = self.friPhoneView.layer.position.y + 2
        animation.isRemovedOnCompletion = false
        animation.fillMode = .forwards
        
        let animation1 = CASpringAnimation(keyPath: "position.y")
        animation1.damping = 10
        animation1.stiffness = 200
        animation1.mass = 1
        animation1.initialVelocity = 10
        animation1.duration = animation.settlingDuration
        animation1.fromValue = self.friTableView.layer.position.y
        animation1.toValue = self.friTableView.layer.position.y + 2
        animation1.isRemovedOnCompletion = false
        animation1.fillMode = .forwards
        
        self.scrollLocation = type
        
        if let topHeight = self.scrollTopHeight, let centerHeight = self.scrollCenterHeight, let bottomHeight = self.scrollBottomHeight {
            switch type {
            
            case .ScrollTop:
                
                UIView.animate(withDuration: 0.2) {
                    self.qsl_top = topHeight
                } completion: { finished in
                    self.friTableView.isScrollEnabled = true
//                    self.friPhoneView.layer.add(animation, forKey: "animation")
                    self.friTableView.layer.add(animation1, forKey: "animation")
                }
                break
            case .ScrollCenter:
                
                UIView.animate(withDuration: 0.2) {
                    self.qsl_top = centerHeight
                } completion: { finished in
                    self.friTableView.isScrollEnabled = false
//                    self.friPhoneView.layer.add(animation, forKey: "animation")
                    self.friTableView.layer.add(animation1, forKey: "animation")
                }
                break
            case .ScrollBottom:
                
                UIView.animate(withDuration: 0.2) {
                    self.qsl_top = bottomHeight
                } completion: { finished in
                    self.friTableView.isScrollEnabled = false
//                    self.friPhoneView.layer.add(animation, forKey: "animation")
                    self.friTableView.layer.add(animation1, forKey: "animation")
                }
                break
            }
        }
    
        delegate?.viewDidScroll()
    }
    
    func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldRecognizeSimultaneouslyWith otherGestureRecognizer: UIGestureRecognizer) -> Bool {
        return true
    }
    
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let currentPostion = scrollView.contentOffset.y
        self.scrollStopY = currentPostion
    }
}

extension QSLHomeFriendView: QSLHomeFriendFooterViewDelegate {
    
    func addButtonAction() {
        delegate?.addFriendAction(isSmall: false)
    }
}

// MARK: - 设置Tableview
extension QSLHomeFriendView: UITableViewDelegate, UITableViewDataSource {
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        guard let friendList = viewModel?.friendList else { return 0 }
        return friendList.count
    }
    
    func tableView(_ tableView: UITableView, willDisplay cell: UITableViewCell, forRowAt indexPath: IndexPath) {
        
//        if indexPath.row == 0 {
//            
//            cell.addCorner(conrners: [.topRight, .topLeft], radius: 6)
//        }
//        
//        if let friendList = viewModel?.friendList, indexPath.row == friendList.count - 1 {
//            
//            cell.addCorner(conrners: [.bottomLeft, .bottomRight], radius: 6)
//        }
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    
        let cell = tableView.dequeueReusableCell(cellType: QSLHomeFriendTableViewCell.self, cellForRowAt: indexPath)
        cell.selectionStyle = .none
        cell.delegate = self
        if let model = viewModel?.friendList[indexPath.row] {
            cell.config(model: model)
        }
        return cell
    }
    
    func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {
        return 94.rpx
    }
    
    func tableView(_ tableView: UITableView, heightForHeaderInSection section: Int) -> CGFloat {
        return 0.0001
    }
    
    func tableView(_ tableView: UITableView, heightForFooterInSection section: Int) -> CGFloat {
        return 200.rpx
    }
    
    func tableView(_ tableView: UITableView, viewForFooterInSection section: Int) -> UIView? {
        let view = QSLHomeFriendFooterView()
        view.delegate = self
        return view
    }
    
}