iOS-glrj/VenusKitto/PetDetailViewController.swift

//
//  PetDetailViewController.swift
//  VenusKitto
//
//  Created by Neoa on 2025/8/27.
//

import Foundation
import UIKit

// MARK: - PetDetailViewController (宠物详情 + 编辑/保存)
final class PetDetailViewController: UIViewController, UIImagePickerControllerDelegate, UINavigationControllerDelegate {

    // 输入/选择行与 AddPet 基本一致
    private let scrollView = UIScrollView()
    private let contentView = UIView()

    private let avatarButton = UIButton(type: .custom)
    private let avatarHint = UILabel()

    private let nickCard = UIView()
    private let nickTitle = UILabel()
    private let nickField = UITextField()

    private let infoCard = UIView()

    private let weightRow = InputRow(title: "体重", placeholder: "请输入体重(kg)", showsChevron: false, keyboard: .decimalPad)
    private let speciesRow = SelectRow(title: "种类")
    private let breedRow   = SelectRow(title: "品种")
    private let genderRow  = SelectRow(title: "性别")
    private let birthRow   = SelectRow(title: "出生日期")
    private let arriveRow  = SelectRow(title: "到家日期")

    private let saveButton = UIButton(type: .system)

    private var isEditingMode = false { didSet { applyEditingState() } }

    private var selectedSpecies: String?
    private var selectedBreedName: String?
    private var selectedBreedId: String?
    private var selectedGender: String?
    private var birthDate: Date?
    private var arriveDate: Date?
    private var avatarImageUrl: String?

    private let pet: HomeViewController.PetSummary
    private let imageCache = NSCache<NSString, UIImage>()
    private let rightEditButton = UIButton(type: .system)

    init(pet: HomeViewController.PetSummary) {
        self.pet = pet
        super.init(nibName: nil, bundle: nil)
    }
    required init?(coder: NSCoder) { fatalError() }

    override func viewDidLoad() {
        super.viewDidLoad()
        view.backgroundColor = .white
        title = "宠物详情"

        // 左上角：返回 + 编辑
        if let backImage = UIImage(named: "AddPet385") {
            let back = UIBarButtonItem(image: backImage.withRenderingMode(.alwaysOriginal), style: .plain, target: self, action: #selector(tapBack))
            navigationItem.leftBarButtonItem = back
        }
        // 右上角：编辑/保存（自定义按钮以支持背景色）
        rightEditButton.setTitle("编辑", for: .normal)
        rightEditButton.setTitleColor(.black, for: .normal)
        rightEditButton.backgroundColor = .clear
        rightEditButton.layer.cornerRadius = 16
        rightEditButton.contentEdgeInsets = UIEdgeInsets(top: 6, left: 14, bottom: 6, right: 14)
        rightEditButton.addTarget(self, action: #selector(onRightButtonTap), for: .touchUpInside)
        navigationItem.rightBarButtonItem = UIBarButtonItem(customView: rightEditButton)

        layout()
        wire()
        fillWithPet()
        isEditingMode = false // 默认不可编辑（箭头隐藏、不可点）
    }

    @objc private func tapBack() { navigationController?.popViewController(animated: true) }

    private func layout() {
        // scroll
        view.addSubview(scrollView)
        scrollView.translatesAutoresizingMaskIntoConstraints = false
        scrollView.showsVerticalScrollIndicator = false
        scrollView.keyboardDismissMode = .onDrag
        scrollView.addSubview(contentView)
        contentView.translatesAutoresizingMaskIntoConstraints = false

        NSLayoutConstraint.activate([
            scrollView.topAnchor.constraint(equalTo: view.safeAreaLayoutGuide.topAnchor),
            scrollView.leadingAnchor.constraint(equalTo: view.leadingAnchor),
            scrollView.trailingAnchor.constraint(equalTo: view.trailingAnchor),
            scrollView.bottomAnchor.constraint(equalTo: view.bottomAnchor),

            contentView.topAnchor.constraint(equalTo: scrollView.topAnchor),
            contentView.leadingAnchor.constraint(equalTo: scrollView.leadingAnchor),
            contentView.trailingAnchor.constraint(equalTo: scrollView.trailingAnchor),
            contentView.bottomAnchor.constraint(equalTo: scrollView.bottomAnchor),
            contentView.widthAnchor.constraint(equalTo: scrollView.widthAnchor)
        ])

        // avatar
        avatarButton.translatesAutoresizingMaskIntoConstraints = false
        avatarButton.setImage(UIImage(named: "Home372") ?? UIImage(systemName: "pawprint.circle")!, for: .normal)
        avatarButton.imageView?.contentMode = .scaleAspectFill
        avatarButton.layer.cornerRadius = 40
        avatarButton.clipsToBounds = true
        avatarButton.backgroundColor = UIColor(hex: "#FFF3D9")

        avatarHint.text = "点击上传头像"
        avatarHint.font = .systemFont(ofSize: 12)
        avatarHint.textColor = UIColor(hex: "#8B8B8B")
        avatarHint.textAlignment = .center
        avatarHint.translatesAutoresizingMaskIntoConstraints = false

        contentView.addSubview(avatarButton)
        contentView.addSubview(avatarHint)

        NSLayoutConstraint.activate([
            avatarButton.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 16),
            avatarButton.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 24),
            avatarButton.widthAnchor.constraint(equalToConstant: 80),
            avatarButton.heightAnchor.constraint(equalToConstant: 80),

            avatarHint.topAnchor.constraint(equalTo: avatarButton.bottomAnchor, constant: 6),
            avatarHint.centerXAnchor.constraint(equalTo: avatarButton.centerXAnchor)
        ])

        // Nick card
        nickCard.backgroundColor = .white
        nickCard.layer.cornerRadius = 12
        nickCard.layer.shadowColor = UIColor.black.cgColor
        nickCard.layer.shadowOpacity = 0.06
        nickCard.layer.shadowRadius = 6
        nickCard.layer.shadowOffset = .init(width: 0, height: 2)
        nickCard.translatesAutoresizingMaskIntoConstraints = false

        nickTitle.text = "昵称"
        nickTitle.font = .systemFont(ofSize: 14)
        nickTitle.textColor = UIColor(hex: "#5B5B5B")
        nickField.placeholder = "请输入昵称"
        nickField.font = .systemFont(ofSize: 14)
        nickField.textAlignment = .right
        nickField.clearButtonMode = .whileEditing

        [nickTitle, nickField].forEach { nickCard.addSubview($0); $0.translatesAutoresizingMaskIntoConstraints = false }
        contentView.addSubview(nickCard)

        NSLayoutConstraint.activate([
            nickCard.topAnchor.constraint(equalTo: contentView.topAnchor, constant: 120),
            nickCard.leadingAnchor.constraint(equalTo: contentView.leadingAnchor, constant: 24),
            nickCard.trailingAnchor.constraint(equalTo: contentView.trailingAnchor, constant: -24),
            nickCard.heightAnchor.constraint(equalToConstant: 64),

            nickTitle.centerYAnchor.constraint(equalTo: nickCard.centerYAnchor),
            nickTitle.leadingAnchor.constraint(equalTo: nickCard.leadingAnchor, constant: 16),

            nickField.centerYAnchor.constraint(equalTo: nickCard.centerYAnchor),
            nickField.trailingAnchor.constraint(equalTo: nickCard.trailingAnchor, constant: -24),
            nickField.leadingAnchor.constraint(greaterThanOrEqualTo: nickTitle.trailingAnchor, constant: 12)
        ])

        // Info card
        infoCard.backgroundColor = .white
        infoCard.layer.cornerRadius = 12
        infoCard.layer.shadowColor = UIColor.black.cgColor
        infoCard.layer.shadowOpacity = 0.06
        infoCard.layer.shadowRadius = 6
        infoCard.layer.shadowOffset = .init(width: 0, height: 2)
        infoCard.translatesAutoresizingMaskIntoConstraints = false
        contentView.addSubview(infoCard)

        let rows: [UIView] = [weightRow, speciesRow, breedRow, genderRow, birthRow, arriveRow]
        rows.forEach { r in
            r.translatesAutoresizingMaskIntoConstraints = false
            infoCard.addSubview(r)
        }
        // 分隔线
        let seps = (0..<(rows.count - 1)).map { _ in DashedSeparator() }
        seps.forEach { s in infoCard.addSubview(s); s.translatesAutoresizingMaskIntoConstraints = false }

        NSLayoutConstraint.activate([
            infoCard.topAnchor.constraint(equalTo: nickCard.bottomAnchor, constant: 16),
            infoCard.leadingAnchor.constraint(equalTo: nickCard.leadingAnchor),
            infoCard.trailingAnchor.constraint(equalTo: nickCard.trailingAnchor)
        ])

        // Row heights
        let h: CGFloat = 52
        var prev: UIView? = nil
        for (idx, row) in rows.enumerated() {
            NSLayoutConstraint.activate([
                row.leadingAnchor.constraint(equalTo: infoCard.leadingAnchor, constant: 12),
                row.trailingAnchor.constraint(equalTo: infoCard.trailingAnchor, constant: -12),
                row.heightAnchor.constraint(equalToConstant: h)
            ])
            if let p = prev {
                row.topAnchor.constraint(equalTo: p.bottomAnchor).isActive = true
            } else {
                row.topAnchor.constraint(equalTo: infoCard.topAnchor).isActive = true
            }
            if idx < seps.count {
                let sep = seps[idx]
                NSLayoutConstraint.activate([
                    sep.leadingAnchor.constraint(equalTo: infoCard.leadingAnchor, constant: 12),
                    sep.trailingAnchor.constraint(equalTo: infoCard.trailingAnchor, constant: -12),
                    sep.topAnchor.constraint(equalTo: row.bottomAnchor),
                    sep.heightAnchor.constraint(equalToConstant: 1)
                ])
            }
            prev = row
        }
        prev!.bottomAnchor.constraint(equalTo: infoCard.bottomAnchor).isActive = true

        // Save button
        saveButton.setTitle("保存", for: .normal)
        saveButton.setTitleColor(.black, for: .normal)
        saveButton.backgroundColor = UIColor(hex: "#FFE059")
        saveButton.layer.cornerRadius = 22
        contentView.addSubview(saveButton)
        saveButton.translatesAutoresizingMaskIntoConstraints = false
        saveButton.heightAnchor.constraint(equalToConstant: 44).isActive = true

        NSLayoutConstraint.activate([
            saveButton.topAnchor.constraint(equalTo: infoCard.bottomAnchor, constant: 28),
            saveButton.leadingAnchor.constraint(equalTo: infoCard.leadingAnchor),
            saveButton.trailingAnchor.constraint(equalTo: infoCard.trailingAnchor),
            saveButton.bottomAnchor.constraint(equalTo: contentView.bottomAnchor, constant: -28)
        ])
    }

    private func wire() {
        let tap = UITapGestureRecognizer(target: self, action: #selector(endEdit))
        tap.cancelsTouchesInView = false
        view.addGestureRecognizer(tap)

        avatarButton.addTarget(self, action: #selector(pickAvatar), for: .touchUpInside)
        saveButton.addTarget(self, action: #selector(tapSave), for: .touchUpInside)

        speciesRow.onTap = { [weak self] in self?.chooseSpecies() }
        breedRow.onTap   = { [weak self] in self?.chooseBreed() }
        genderRow.onTap  = { [weak self] in self?.chooseGender() }
        birthRow.onTap   = { [weak self] in self?.chooseDate(for: .birth) }
        arriveRow.onTap  = { [weak self] in self?.chooseDate(for: .arrive) }
    }

    @objc private func endEdit() { view.endEditing(true) }

    // 只读/编辑模式切换
    private func applyEditingState() {
        // chevron 显隐 & 交互
        speciesRow.setChevronHidden(!isEditingMode)
        breedRow.setChevronHidden(!isEditingMode)
        genderRow.setChevronHidden(!isEditingMode)
        birthRow.setChevronHidden(!isEditingMode)
        arriveRow.setChevronHidden(!isEditingMode)

        weightRow.setEnabled(isEditingMode)
        speciesRow.setEnabled(isEditingMode)
        breedRow.setEnabled(isEditingMode)
        genderRow.setEnabled(isEditingMode)
        birthRow.setEnabled(isEditingMode)
        arriveRow.setEnabled(isEditingMode)

        nickField.isUserInteractionEnabled = isEditingMode
        avatarButton.isUserInteractionEnabled = isEditingMode
        // InputRow 的 textField是私有，这里不直接访问，整体禁用/启用这一行
        weightRow.isUserInteractionEnabled = isEditingMode

        saveButton.isHidden = !isEditingMode
        avatarHint.isHidden = !isEditingMode
        updateRightButton()
    }

    // 更新右上角按钮外观
    private func updateRightButton() {
        if isEditingMode {
            rightEditButton.setTitle("保存", for: .normal)
            rightEditButton.backgroundColor = UIColor(hex: "#FFE059")
        } else {
            rightEditButton.setTitle("编辑", for: .normal)
            rightEditButton.backgroundColor = .clear
        }
    }

    // 右上角按钮点击：编辑 -> 进入编辑；保存 -> 调用保存
    @objc private func onRightButtonTap() {
        if isEditingMode {
            tapSave()
        } else {
            isEditingMode = true
        }
    }

    private func fillWithPet() {
        nickField.text = pet.nickname?.isEmpty == false ? pet.nickname : pet.name

        // 种类/品种/性别
        if let cid = Int(pet.categoryId ?? "0") {
            selectedSpecies = (cid == 3) ? "狗" : (cid == 4 ? "猫" : nil)
            speciesRow.value = selectedSpecies ?? "请选择"
        }
        selectedBreedName = pet.breedName
        breedRow.value = pet.breedName ?? "请选择"
        selectedBreedId = pet.breedId

        selectedGender = pet.gender
        genderRow.value = pet.gender ?? "请选择"

        // 体重
        if let w = pet.weight, !w.isEmpty {
            weightRow.text = w
        }

        // 日期
        let dateFmt = DateFormatter(); dateFmt.dateFormat = "yyyy-MM-dd"
        if let d = parseServerDate(pet.birthDate) {
            birthDate = d; birthRow.value = dateFmt.string(from: d)
        }
        if let d = parseServerDate(pet.arrivalDate) {
            arriveDate = d; arriveRow.value = dateFmt.string(from: d)
        }

        // 头像
        if let urlStr = pet.avatar, let url = URL(string: urlStr) {
            loadImage(from: url) { [weak self] img in
                self?.avatarButton.setImage(img ?? (UIImage(named: "Home372") ?? UIImage(systemName: "pawprint.circle")!), for: .normal)
            }
        }
    }

    // MARK: - Actions
    @objc private func pickAvatar() {
        guard isEditingMode else { return }
        let picker = UIImagePickerController()
        picker.sourceType = .photoLibrary
        picker.delegate = self
        present(picker, animated: true)
    }

    func imagePickerController(_ picker: UIImagePickerController, didFinishPickingMediaWithInfo info: [UIImagePickerController.InfoKey : Any]) {
        if let img = info[.originalImage] as? UIImage {
            avatarButton.setImage(img, for: .normal)
            uploadAvatar(image: img)
        }
        picker.dismiss(animated: true)
    }

    private func uploadAvatar(image: UIImage) {
        guard let imageData = image.jpegData(compressionQuality: 0.7) else { return }
        let url = URL(string: "\(baseURL)/common/upload")!
        var request = URLRequest(url: url)
        request.httpMethod = "POST"
        if let token = UserDefaults.standard.string(forKey: "userToken") {
            request.setValue(token, forHTTPHeaderField: "Authorization")
        }
        let boundary = "Boundary-\(UUID().uuidString)"
        request.setValue("multipart/form-data; boundary=\(boundary)", forHTTPHeaderField: "Content-Type")

        var body = Data()
        body.append("--\(boundary)\r\n".data(using: .utf8)!)
        body.append("Content-Disposition: form-data; name=\"file\"; filename=\"avatar.jpg\"\r\n".data(using: .utf8)!)
        body.append("Content-Type: image/jpeg\r\n\r\n".data(using: .utf8)!)
        body.append(imageData)
        body.append("\r\n".data(using: .utf8)!)
        body.append("--\(boundary)--\r\n".data(using: .utf8)!)
        request.httpBody = body

        URLSession.shared.dataTask(with: request) { [weak self] data, _, _ in
            guard let data = data else { return }
            if let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any],
               let code = (json["code"] as? String) ?? ((json["code"] as? Int).map { String($0) }),
               code == "200",
               let dataObj = json["data"] as? [String: Any],
               let urlStr = dataObj["url"] as? String {
                self?.avatarImageUrl = urlStr
            }
        }.resume()
    }

    @objc private func tapSave() {
        // 组装参数
        let userId = Int(UserDefaults.standard.string(forKey: "userId") ?? "") ?? UserDefaults.standard.integer(forKey: "userId")

        let breedId = Int(selectedBreedId ?? (pet.breedId ?? "0")) ?? 0
        let categoryId = (selectedSpecies == "狗") ? 3 : (selectedSpecies == "猫" ? 4 : (Int(pet.categoryId ?? "0") ?? 0))
        let gender = selectedGender ?? (pet.gender ?? "")

        let name = nickField.text ?? pet.name
        let nickname = nickField.text ?? pet.nickname ?? pet.name

        let dateFormatter = DateFormatter(); dateFormatter.dateFormat = "yyyy-MM-dd"
        let birth = birthDate != nil ? dateFormatter.string(from: birthDate!) : (dateFormatter.string(from: parseServerDate(pet.birthDate) ?? Date()))
        let arrive = arriveDate != nil ? dateFormatter.string(from: arriveDate!) : (dateFormatter.string(from: parseServerDate(pet.arrivalDate) ?? Date()))

        let weightDouble: Double = {
            if let d = Double(weightRow.text), !weightRow.text.isEmpty { return d }
            if let w = pet.weight, let d = Double(w) { return d }
            return 0
        }()

        let bodyDict: [String: Any] = [
            "arrivalDate": arrive,
            "avatar": avatarImageUrl ?? (pet.avatar ?? ""),
            "birthDate": birth,
            "breedId": breedId,
            "categoryId": categoryId,
            "createTime": "",
            "gender": gender,
            "id": Int(pet.id ?? "0") ?? 0,
            "name": name,
            "nickname": nickname,
            "updateTime": "",
            "userId": userId,
            "weight": weightDouble
        ]

        guard let url = URL(string: "\(baseURL)/petRecordPet/petUpdate") else { return }
        var req = URLRequest(url: url)
        req.httpMethod = "POST"
        req.setValue("application/json", forHTTPHeaderField: "Content-Type")
        if let token = UserDefaults.standard.string(forKey: "userToken") {
            req.setValue(token, forHTTPHeaderField: "Authorization")
        }
        req.httpBody = try? JSONSerialization.data(withJSONObject: bodyDict, options: [])

        URLSession.shared.dataTask(with: req) { [weak self] data, resp, err in
            if let http = resp as? HTTPURLResponse { print("🐾 petUpdate status: \(http.statusCode)") }
            if let err = err { print("🐾 petUpdate error: \(err)"); return }
            guard let data = data else { return }
            if let json = try? JSONSerialization.jsonObject(with: data) as? [String: Any] {
                print()
                let code = (json["code"] as? String) ?? ((json["code"] as? Int).map { String($0) })
                DispatchQueue.main.async {
                    if code == "200" {
                        DispatchQueue.main.async {
                            self?.showToast("更新成功")
                            // 通知首页/列表刷新
                            NotificationCenter.default.post(name: .petDidSave, object: nil, userInfo: ["userId": String(userId)])
                            self?.navigationController?.popViewController(animated: true)
                        }
                    } else {
                        DispatchQueue.main.async {
                            self?.showToast("更新失败")
                        }
                    }
                }
            }else{
                DispatchQueue.main.async {
                    self?.showToast("更新成功")
                    // 通知首页/列表刷新
                    NotificationCenter.default.post(name: .petDidSave, object: nil, userInfo: ["userId": String(userId)])
                    self?.navigationController?.popViewController(animated: true)
                }
            }
        }.resume()
    }

    // MARK: - 选择器（与 AddPet 一致）
    private enum DateKind { case birth, arrive }
    private func chooseDate(for kind: DateKind) {
        guard isEditingMode else { return }
        let initDate = (kind == .birth) ? (self.birthDate ?? Date()) : (self.arriveDate ?? Date())
        let vc = DatePickerSheetController(initial: initDate)
        vc.onDone = { [weak self] date in
            guard let self = self else { return }
            let fmt = DateFormatter(); fmt.dateFormat = "yyyy-MM-dd"
            let text = fmt.string(from: date)
            if kind == .birth { self.birthDate = date; self.birthRow.value = text }
            else { self.arriveDate = date; self.arriveRow.value = text }
        }
        present(vc, animated: false)
    }

    private func chooseSpecies() {
        guard isEditingMode else { return }
        let ac = UIAlertController(title: "选择种类", message: nil, preferredStyle: .actionSheet)
        ["猫", "狗"].forEach { t in ac.addAction(UIAlertAction(title: t, style: .default, handler: { _ in
            self.selectedSpecies = t
            self.speciesRow.value = t
            // 清空品种
            self.selectedBreedName = nil
            self.selectedBreedId = nil
            self.breedRow.value = "请选择"
        })) }
        ac.addAction(UIAlertAction(title: "取消", style: .cancel))
        // ✅ 关键：指定 popover 锚点
        presentSheet(ac, from: self.speciesRow)
    }

    private func chooseBreed() {
        guard isEditingMode else { return }
        guard let sp = selectedSpecies ?? ((Int(pet.categoryId ?? "0") ?? 0) == 3 ? "狗" : ((Int(pet.categoryId ?? "0") ?? 0) == 4 ? "猫" : nil)) else {
            let ac = UIAlertController(title: "请先选择种类", message: nil, preferredStyle: .alert)
            ac.addAction(UIAlertAction(title: "确定", style: .default))
            present(ac, animated: true); return
        }
        let categoryId: Int
        switch sp {
        case "狗": categoryId = 3
        case "猫": categoryId = 4
        default: categoryId = 0
        }
        let vc = BreedPickerViewController(categoryId: categoryId, token: UserDefaults.standard.string(forKey: "userToken"))
        vc.onSelect = { [weak self] breedId, breedName in
            self?.selectedBreedName = breedName
            self?.breedRow.value = breedName
            self?.selectedBreedId = breedId
            self?.navigationController?.popViewController(animated: true)
        }
        navigationController?.pushViewController(vc, animated: true)
    }

    private func chooseGender() {
        guard isEditingMode else { return }
        let ac = UIAlertController(title: "选择性别", message: nil, preferredStyle: .actionSheet)
        ["公", "母"].forEach { t in ac.addAction(UIAlertAction(title: t, style: .default, handler: { _ in
            self.selectedGender = t
            self.genderRow.value = t
        })) }
        ac.addAction(UIAlertAction(title: "取消", style: .cancel))
        // ✅ 关键：指定 popover 锚点
        presentSheet(ac, from: self.genderRow)
    }

    // MARK: - Present action sheet safely on iPad
    private func presentSheet(_ ac: UIAlertController, from source: UIView) {
        if let pop = ac.popoverPresentationController {
            // 优先用触发的控件作为锚点
            if source.window != nil {
                pop.sourceView = source
                pop.sourceRect = source.bounds
                pop.permittedArrowDirections = [.up, .down]
            } else {
                // 兜底：用整个视图中心作为锚点（极少数情况下 source 还未在窗口层级里）
                pop.sourceView = self.view
                pop.sourceRect = CGRect(x: self.view.bounds.midX, y: self.view.bounds.midY, width: 1, height: 1)
                pop.permittedArrowDirections = []
            }
        }
        self.present(ac, animated: true)
    }

    
    // MARK: - Helpers
    private func parseServerDate(_ s: String?) -> Date? {
        guard let s = s, !s.isEmpty else { return nil }
        // 兼容 2025-08-20T00:00:00.000+08:00
        let fmt = DateFormatter()
        fmt.locale = Locale(identifier: "en_US_POSIX")
        fmt.dateFormat = "yyyy-MM-dd'T'HH:mm:ss.SSSXXXXX"
        return fmt.date(from: s)
    }

    private func loadImage(from url: URL, completion: @escaping (UIImage?) -> Void) {
        let key = url.absoluteString as NSString
        if let c = imageCache.object(forKey: key) {
            completion(c); return
        }
        URLSession.shared.dataTask(with: url) { [weak self] data, _, _ in
            var img: UIImage? = nil
            if let data = data { img = UIImage(data: data) }
            if let i = img { self?.imageCache.setObject(i, forKey: key) }
            DispatchQueue.main.async { completion(img) }
        }.resume()
    }

    private func showToast(_ message: String) {
        let toastLabel = UILabel(frame: CGRect(x: self.view.frame.size.width / 2 - 150, y: self.view.frame.size.height/2 - 50, width: 300, height: 50))
        toastLabel.backgroundColor = UIColor.black.withAlphaComponent(0.7)
        toastLabel.textColor = UIColor.white
        toastLabel.textAlignment = .center
        toastLabel.font = .systemFont(ofSize: 14)
        toastLabel.text = message
        toastLabel.alpha = 1.0
        toastLabel.layer.cornerRadius = 10
        toastLabel.clipsToBounds  =  true
        self.view.addSubview(toastLabel)

        UIView.animate(withDuration: 1, delay: 1, options: .curveEaseOut, animations: {
            toastLabel.alpha = 0.0
        }, completion: { _ in
            toastLabel.removeFromSuperview()
        })
    }
}