//
//  LoginViewController.swift
//  MTP2_iOS
//
//  Created by zhongyuan on 2018/5/10.
//  Copyright © 2018年 zhongyuan.All rights reserved.
//

import UIKit
import NVActivityIndicatorView
import WHToast
import SwiftyAttributes
import SafariServices
import SwiftDate

/// 登录视图容器管理类
class LoginViewController: BaseTableViewController<LsLoginUserModel>, UITextFieldDelegate {
    
    // MARK: - 生命周期
    private static let TAG_LOGIN = 100
    private static let TAG_REGIEST = 101
    private static let TAG_PULL = 102
    private static let TAG_WACHAT = 103
    private static let TAG_ALIPAY = 104
    private static let TAG_PHONE_LOGIN = 105
    private static let TAG_FORGETPWD = 106
    
    /// 账户名称
    @IBOutlet weak var usernameTextField: UITextField!
    /// 账户密码
    @IBOutlet weak var passwordTextField: UITextField!
    /// 登录按钮
    @IBOutlet weak var loginButton: UIButton!
    /// 手机号码登录
    @IBOutlet weak var phoneLoginButton: UIButton! {
        didSet {
            phoneLoginButton.isHidden = !((ConfigUtils.getValue(key: .SupportMobileLogin) as? Bool) ?? true)
        }
    }
    /// 是否记住密码
    @IBOutlet weak var savePwd: UISwitch!
    /// 账户信息下拉按钮
    @IBOutlet weak var userPull: UIButton!
    /// 用户信息
    @IBOutlet weak var userTableView: UITableView! {
        didSet {
            userTableView.layer.cornerRadius = 5.0
            userTableView.layer.borderWidth = 0.5
            userTableView.layer.borderColor = UIColorFromHex(rgbValue: 0xe0e0e0).cgColor
            userTableView.layer.masksToBounds = true
        }
    }
    /// cell的高度约束
    @IBOutlet weak var cellConstraints: NSLayoutConstraint!
    /// 微信
    @IBOutlet weak var weixinButton: UIButton!
    /// 支付宝
    @IBOutlet weak var alipayButton: UIButton!
    /// 忘记密码
    @IBOutlet weak var forgetPwdButton: UIButton! {
        didSet {
            forgetPwdButton.isHidden = !((ConfigUtils.getValue(key: .SupportResetPwd) as? Bool) ?? true)
        }
    }
    /// 版本号
    @IBOutlet weak var versionLabel: UILabel! {
        didSet {
            versionLabel.text = "版本号：V" + app_Version
        }
    }
    /// 是否张开状态
    private var isExpand = false
    
    // MARK: - 生命周期相关
    override func viewDidLoad() {
        super.viewDidLoad()
        
        /// 隐藏导航栏
        self.navigationController?.setNavigationBarHidden(true, animated: true)
        /// Loading
        addLoadingView()
        /// 界面内容初始化
        buildView()
        /// 数据初始化
        initData()
        /// 初始化用户信息
        initUser()
    }
    
    override func viewDidAppear(_ animated: Bool) {
        super.viewDidAppear(animated)
        
        /// stopAnimating
        if let isAnimating = self._anim?.isAnimating,
           isAnimating { self._anim?.stopAnimating() }
    }
    
    // MARK: - 初始化相关
    /// 数据初始化
    func initData() {
        /// 请求app版本更新
        self.requestAppVersionUpdate()
    }
    
    /// 界面内容初始化
    func buildView() {
        /// 设置attributedPlaceholder
        usernameTextField.attributedPlaceholder = "用户名/账号/手机号".withTextColor(Color_placeholder_text)
        passwordTextField.attributedPlaceholder = "请输入您的密码".withTextColor(Color_placeholder_text)
        
        /// 获取是否记录密码
        self.savePwd.isOn = UserDefaultsUtils.isSavePwd()
        
        /// 记住了密码 并且密码不为空 并且6小时有效
        if self.savePwd.isOn,
           let pwd = UserDefaultsUtils.savePwd(),
           let date = UserDefaultsUtils.savePwdTime(),
           ((Date()-date).hour ?? 0)<=6 {
            /// 填入密码
            passwordTextField.text = pwd
        }
        
        /// 设置cell标识
        cellReuseIdentifier = "LoginUserCellID"
        /// tableView 设置
        userTableView.rowHeight = 44.0
    }
    
    // MARK: - 用户交互相关
    @IBAction func viewPassed(_ sender: UIButton) {
        if self.usernameTextField.isFirstResponder {
            self.usernameTextField.resignFirstResponder()
        }
        if self.passwordTextField.isFirstResponder {
            self.passwordTextField.resignFirstResponder()
        }
        switch sender.tag {
        case LoginViewController.TAG_LOGIN:
            if let _ = MTP2BusinessCore.shared.address {
                startLogin()
            } else {
                /// startAnimating
                self._anim?.startAnimating()
                /// requestAppAdress
                MTP2BusinessCore.shared.requestAppAdress { (isComplete, error) in
                    DispatchQueue.main.async {
                        /// stopAnimating
                        self._anim?.stopAnimating()
                        
                        if !isComplete {
                            WHToast.showError(withMessage: "登录失败，获取链路失败！", duration: 2.0, finishHandler: {})
                            return
                        }
                        /// 开始登录
                        self.startLogin()
                    }
                }
            }
        case LoginViewController.TAG_PULL: /// 帐户列表
            getAllUser()
        case LoginViewController.TAG_FORGETPWD: /// 忘记密码
            /// 进入到重置密码
            self.present(storyboardName: "ResetPwd", storyboardId: "ResetPwdFirstStepID")
        case LoginViewController.TAG_PHONE_LOGIN: /// 帐户注册
            guard let url = URL(string: MTP2BusinessCore.shared.address?.mobileOpenUrl ?? "") else { return }
            let safriViewController = SFSafariViewController(url: url)
            safriViewController.delegate = self
            self.present(safriViewController, animated: true, completion: {})
        default:
            if (self.navigationController?.viewControllers.count ?? 0) > 1 {
                self.navigationController?.popViewController(animated: true)
            } else {
                self.dismiss(animated: true, completion: {})
            }
        }
    }
    
    @IBAction func onValueChanged(_ sender: UISwitch) {
        /// 记录是否记住密码
        UserDefaultsUtils.setIsSavePwd(sender.isOn)
    }
    
    /// 获取保存的用户账号
    func initUser() {
        if let userInfo = try? DatabaseHelper.getUsers(type: Int16(0))  {
            tableCellModels = userInfo.compactMap({ LsLoginUserModel(source: $0) }).sorted(by: { (obj1, obj2) -> Bool in
                return obj1.loginDate>obj2.loginDate
            })
            usernameTextField.text = tableCellModels[0].loginID
            userPull.isHidden = userInfo.count > 0 ? false : true
        } else {
            usernameTextField.text = ""
            tableCellModels.removeAll()
            userPull.isHidden = true
        }
    }
    
    /// 显示所有的账户信息
    func getAllUser() {
        /// 是否展开
        isExpand = !isExpand
        /// 是否隐藏
        self.userTableView.isHidden = !self.isExpand
        /// 约束
        self.cellConstraints.constant = 0.0
        /// 动画
        UIView.animate(withDuration: 0.3) {
            self.cellConstraints.constant = self.isExpand ? CGFloat(self.tableCellModels.count > 5 ? 5 : self.tableCellModels.count) * 44 : 0
            self.view.layoutIfNeeded()
        }
        userTableView.reloadData()
    }
    
    // MARK: - 登录相关
    /// 用户登录校验
    ///
    /// - Returns: 是否成功
    private func checkValue() -> Bool {
        if let account = self.usernameTextField.text {
            if account.trimmingCharacters(in: CharacterSet.whitespaces).isEmpty {
                WHToast.showError(withMessage: "请输入登录账户", duration: 1.0) {
                    self.usernameTextField.becomeFirstResponder()
                }
                return false
            }
        }
        if let password = self.passwordTextField.text {
            if password.trimmingCharacters(in: CharacterSet.whitespaces).isEmpty {
                WHToast.showError(withMessage: "请输入账户密码", duration: 1.0) {
                    self.passwordTextField.becomeFirstResponder()
                }
                return false
            }
        }
        return true
    }
    
    /// 登录方法
    func startLogin()  {
        /// 异常
        guard checkValue(),
              let accountManager = MTP2BusinessCore.shared.accountManager,
              let account = self.usernameTextField.text,
              let password = self.passwordTextField.text else { return }

        /// startAnimating
        self._anim?.startAnimating()
        /// isUserInteractionEnabled
        self.view.isUserInteractionEnabled = false
        /// isEnabled
        self.loginButton.isEnabled = false
        
        let faidBlock = { (error: ErrorInfo?) in
            DispatchQueue.main.async {
                self._anim?.stopAnimating()
                self.view.isUserInteractionEnabled = true
                self.loginButton.isEnabled = true
                
                if let error = error,
                    error.retCode == 1003,
                    let loginrsp = accountManager.loginRsp {
                    let message = "还剩\(loginrsp.pwdWrongLockCnt - loginrsp.pwdWrongCnt)次错误机会，账号或密码不匹配达到\(loginrsp.pwdWrongLockCnt)次，登录账号将锁定\(loginrsp.loginLockHourNum)小时。请联系管理员966000处理。" + "您也可通过手机验证码登录！"
                    self.showHintController(title: "提示", message: message)
                } else {
                    self.showErrorMessgae(error: error)
                }
            }
        }
        
        guard let trade_address = MTP2BusinessCore.shared.address?.tradeHost,
              let trade_port = MTP2BusinessCore.shared.address?.tradePort,
              let intPort = UInt16(trade_port) else { return }
        /// 每次登录前重新请求地址信息
        MTP2BusinessCore.shared.requestAppAdress(true) { (isAddress, er) in
            if !isAddress {
                faidBlock(er)
                return
            }
            /// 获取登录ID
            accountManager.getUserLoginID(account) { (isSuccess, err, loginId) in
                if !isSuccess {
                    faidBlock(err)
                    return
                }
                DispatchQueue.main.async {
                    accountManager.login(address: trade_address, port: intPort, userName: loginId!, password: password, deviceID: NSUUID().uuidString, version: app_Version) { isCompleted, error in
                        if isCompleted {
                            /// 用户与商品信息统一查询
                            accountManager.queryAccountAndGoods(callback: { (isCompleted, error) in
                                if isCompleted {
                                    DispatchQueue.main.async {
                                        /// 如果有 先删除
                                        if let _ = try? DatabaseHelper.getUser(userID: MTP2BusinessCore.shared.getUserID(), type: Int16(0)) {
                                            try? DatabaseHelper.deleteUser(userID: MTP2BusinessCore.shared.getUserID())
                                        }
                                        DispatchQueue.global().asyncAfter(deadline: DispatchTime.now()+0.5, execute: {
                                            /// 记录本地用户信息
                                            try? DatabaseHelper.addUser(userID: MTP2BusinessCore.shared.getUserID(), loginID: account, loginDate: Date(), type: Int16(0))
                                        })
                                        if self.savePwd.isOn {
                                            /// 记住密码和时间
                                            UserDefaultsUtils.setSavePwd(password)
                                            UserDefaultsUtils.setSavePwdTime(Date())
                                        }
                                        self._anim?.stopAnimating()
                                        self.view.isUserInteractionEnabled = true
                                        self.loginButton.isEnabled = true
                                        /// 进入主界面
                                        if let mainTabBarController: UITabBarController = self.storyboard?.instantiateViewController(withIdentifier: "MainTabBarController") as? UITabBarController {
                                            /// 设置根视图
                                            (UIApplication.shared.delegate as? AppDelegate)?.window?.rootViewController = mainTabBarController
                                        }
                                    }
                                } else {
                                    faidBlock(error)
                                }
                            })
                        } else {
                            faidBlock(error)
                        }
                    }
                }
            }
        }
    }
    
    override func touchesBegan(_ touches: Set<UITouch>, with event: UIEvent?) {
        super.touchesBegan(touches, with: event)
        
        /// 关闭
        if !userTableView.isHidden {
            isExpand = false
            userTableView.isHidden = true
        }
    }
    
    // MARK: - 版本更新相关
    /// app检测版本更新
    fileprivate func requestAppVersionUpdate() {
        /// 地址信息为空
        guard let updateUrl = ConfigUtils.getServiceUrl(resourceType: .UpdateUrl),
              updateUrl != "" else { return }
        /// 请求更新
        HttpUtils.callInterface(url: updateUrl, type: .GET, params: nil) { (isComplete, response) in
            if isComplete == true,
                let dic = response as? NSDictionary, let arrays = (dic["results"] as? [NSDictionary]), arrays.count != 0 {
                DispatchQueue.main.async {
                    guard let appStoreVersion = (arrays[0])["version"] as? String else {return}
                    guard let releaseNotes = (arrays[0])["releaseNotes"] as? String else {return}
                    guard let trackViewUrl = (arrays[0])["trackViewUrl"] as? String else {return}
                    let storeStr = NSString(string: appStoreVersion).replacingOccurrences(of: ".", with: "")
                    let appStr = NSString(string: app_Version).replacingOccurrences(of: ".", with: "")
                    if storeStr > appStr {
                        /// 提示更新
                        AppUpdateAlert.showUpdateAlert(version: appStoreVersion, description: releaseNotes, trackViewUrl)
                    }
                }
            }
        }
    }
    
    // MARK: - UITextFieldDelegate
    func textFieldShouldReturn(_ textField: UITextField) -> Bool {
        /// 失去焦点
        self.view.endEditing(true)
        /// 开始登录
        if textField == passwordTextField {
            if let _ = MTP2BusinessCore.shared.address {
                startLogin()
            } else {
                /// startAnimating
                self._anim?.startAnimating()
                /// requestAppAdress
                MTP2BusinessCore.shared.requestAppAdress { (isComplete, error) in
                    DispatchQueue.main.async {
                        /// stopAnimating
                        self._anim?.stopAnimating()
                        if !isComplete {
                            WHToast.showError(withMessage: "登录失败，获取链路失败！", duration: 2.0, finishHandler: {})
                            return
                        }
                        /// 开始登录
                        self.startLogin()
                    }
                }
            }
        }
        return true
    }
    
    func textFieldDidBeginEditing(_ textField: UITextField) {
        if Is_Iphone_678 {
            if textField == usernameTextField {
                UIView.animate(withDuration: 0.3) { self.view.top = -100.0 }
            }
            
            if textField == passwordTextField {
                UIView.animate(withDuration: 0.3) { self.view.top = -140.0 }
            }
        }
        
        if !userTableView.isHidden {
            isExpand = false
            userTableView.isHidden = true
        }
    }
    
    func textFieldDidEndEditing(_ textField: UITextField) {
        UIView.animate(withDuration: 0.3) { self.view.top = 0.0 }
    }
    
    // MARK: - UITableViewDelegate
    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        super.tableView(tableView, didSelectRowAt: indexPath)
        /// 显示选中的账户信息
        usernameTextField.text = tableCellModels[indexPath.row].loginID
        userTableView.isHidden = true
        /// 清空密码输入框
        passwordTextField.text = ""
    }
}

// MARK: - LoginUserCellDelegate
extension LoginViewController: LoginUserCellDelegate {
    func delete(rowNum: Int) {
        do {
            try DatabaseHelper.deleteUser(userID: UInt32(tableCellModels[rowNum].userID))
        } catch {
            WHToast.showError(withMessage: error.localizedDescription, duration: 1.5, finishHandler: {})
        }
        tableCellModels.remove(at: rowNum)
        userTableView.deleteRows(at:[IndexPath(row: rowNum, section: 0)], with: .right)
        if tableCellModels.count == 0 { userPull.isHidden = true }
        UIView.animate(withDuration: 0.3) {
            
            self.cellConstraints.constant = CGFloat(self.tableCellModels.count > 5 ? 5 : self.tableCellModels.count) * 44
            self.view.layoutIfNeeded()
        }
    }
}

extension LoginViewController: UIPopoverPresentationControllerDelegate {
    func adaptivePresentationStyle(for controller: UIPresentationController) -> UIModalPresentationStyle {
        return .none
    }
}

extension LoginViewController: SFSafariViewControllerDelegate {
    
    func safariViewControllerDidFinish(_ controller: SFSafariViewController) {
        controller.dismiss(animated: true, completion: {})
    }
}