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

import UIKit

extension UIViewController {
    // MARK: - 提示信息框
    /// 显示提示信息框的方法（单个确定按钮）
    ///
    /// - Parameters:
    ///   - title: 标题
    ///   - message: 提示内容
    ///   - handler: 确定按钮点击后的回调块
    func showHintController(title: String, message: String, comfirmTitle: String = "ok".localized, handler: ((UIAlertAction) -> Swift.Void)? = nil) {
        let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alertController.addAction(UIAlertAction(title: comfirmTitle, style: .cancel, handler: handler))
        alertController.view.tintColor = UIColor.darkText
        self.present(alertController, animated: true, completion: nil)
    }
    
    /// 显示警告信息框的方法（自动隐藏）
    ///
    /// - Parameters:
    ///   - title: 标题
    ///   - message: 提示内容
    ///   - completion: 自动隐藏后的回调块
    func showWarnController(title: String, message: String, completion: (() -> Swift.Void)? = nil) {
        let alertController = UIAlertController(title: title, message: message, preferredStyle: UIAlertController.Style.alert)
        self.present(alertController, animated: true, completion: { () -> Void in
            let delayTime = DispatchTime.now() + Double(Int64(1 * Double(NSEC_PER_SEC))) / Double(NSEC_PER_SEC)
            DispatchQueue.main.asyncAfter(deadline: delayTime, execute: { () -> Void in
                alertController.dismiss(animated: true, completion: completion)
            })
        })
    }
    
    /// 显示提示确定信息框
    ///
    /// - Parameters:
    ///   - title: 标题
    ///   - message: 提示内容
    ///   - handler: 确定信息后的回调块
    func showYesOrNOController(title: String, message: String, handler: ((UIAlertAction) -> Swift.Void)? = nil) {
        let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alertController.addAction(UIAlertAction(title: "yes".localized, style: .destructive, handler: handler))
        alertController.addAction(UIAlertAction(title: "no".localized, style: .cancel, handler: nil))
        alertController.view.tintColor = UIColor.darkText
        self.present(alertController, animated: true, completion: nil)
    }
    
    /// 显示提示确定信息框
    ///
    /// - Parameters:
    ///   - title: 标题
    ///   - message: 提示内容
    ///   - handler: 确定信息后的回调块
    func showCommitAlertController(title: String, message: String, handler: ((UIAlertAction) -> Swift.Void)? = nil) {
        let alertController = UIAlertController(title: title, message: message, preferredStyle: .alert)
        alertController.addAction(UIAlertAction(title: "ok".localized, style: .destructive, handler: handler))
        alertController.addAction(UIAlertAction(title: "cancle".localized, style: .cancel, handler: nil))
        alertController.view.tintColor = UIColor.darkText
        self.present(alertController, animated: true, completion: nil)
    }
    
    /// 显示 ActionSheetController 弹出框信息
    ///
    /// - Parameters:
    ///   - title: 标题
    ///   - message: 内容信息
    ///   - cancelTitle: 取消按钮标题
    ///   - cancelBlock: 取消执行块
    ///   - actionSheetTitles: actionSheetTitles 标题
    ///   - handler: actionSheet 执行块
    func showActionSheetController(title : String?, message : String?, cancelTitle : String?, cancelBlock: (() -> Void)?, actionSheetTitles: [String]?, handler: ((_ index: NSInteger, _ action: UIAlertAction?) -> Void)?) {
        /// show AlertController
        let alertController = UIAlertController.init(title: title, message: message, preferredStyle: .actionSheet)
        
        /// cancel Action
        if let title = cancelTitle {
            let cancelAction = UIAlertAction.init(title: title, style: .cancel, handler: { (action) in
                if cancelBlock != nil {
                    cancelBlock!()
                }
            })
            alertController.addAction(cancelAction)
        }
        
        alertController.view.tintColor = UIColor.darkText
        
        /// ActionSheet
        if let titles = actionSheetTitles {
            /// 构建sheets
            for sheetTitle in titles {
                let actionSheetAction = UIAlertAction.init(title: sheetTitle, style: .default, handler: { (alertAction) in
                    let index = titles.firstIndex(of: sheetTitle)
                    if handler != nil {
                        handler!(index!, alertAction)
                    }
                })
                alertController.addAction(actionSheetAction)
            }
        }
        
        /// modal present alertController
        self.present(alertController, animated: true, completion: nil)
    }
    
    /// 显示 AlertController 弹出框信息
    ///
    /// - Parameters:
    ///   - title: 标题
    ///   - message: 内容信息
    ///   - cancelTitle: 取消按钮标题
    ///   - sureTitle: 确认按钮标题
    ///   - cancelBlock: 取消执行块
    ///   - sureBlock: 确认执行块
    func showAlertController(title: String?, message: String?, cancelTitle: String?, sureTitle: String?, cancelBlock:(() -> Void)?, sureBlock:(() -> Void)?) {
        
        /// show AlertController
        let alertController = UIAlertController.init(title: title, message: message, preferredStyle: .alert)
        
        /// cancel Action
        if cancelTitle != nil {
            let cancelAction = UIAlertAction.init(title: cancelTitle, style: .cancel, handler: { (action) in
                if cancelBlock != nil {
                    cancelBlock!()
                }
            })
            alertController.addAction(cancelAction)
        }
        alertController.view.tintColor = UIColor.darkText
        
        /// sure Action
        if sureTitle != nil {
            let sureAction = UIAlertAction.init(title: sureTitle, style: .destructive, handler: { (action) in
                if sureBlock != nil {
                    sureBlock!()
                }
            })
            alertController.addAction(sureAction)
        }
        
        /// modal present alertController
        self.present(alertController, animated: true, completion: nil)
    }
    
    /// 展示给定数量信息的弹出选择框
    ///
    /// - Parameters:
    ///   - title: 弹出框标题
    ///   - message: 弹出框提示信息
    ///   - takeInfo: 携带信息
    ///   - type: 弹出类型
    ///   - clickBlock: 代码块
    func showPopupsController(title: String?, message: String?, titleArray: [String], takeInfo: Any? = nil,type: UIAlertController.Style = .alert, _ showCancel: Bool = true, clickBlock: @escaping ((_ value: String,_ rowNum: Int, _ takeInfo: Any?) -> Void)) {
        
        /// show AlertController
        let alertController = UIAlertController(title: title, message: message, preferredStyle: type)
        alertController.view.tintColor = UIColor.darkText
        
        if showCancel == true {
            /// cancel Action
            let cancelAction = UIAlertAction(title: "cancle".localized, style: .cancel, handler: nil)
            alertController.addAction(cancelAction)
        }
        
        /// Actions
        for (index, title) in titleArray.enumerated() {
            let action = UIAlertAction(title: title, style: .default, handler: { (_) in
                clickBlock(title,index, takeInfo)
            })
            alertController.addAction(action)
        }
        
        let height: NSLayoutConstraint = NSLayoutConstraint(item: alertController.view!, attribute: NSLayoutConstraint.Attribute.height, relatedBy: NSLayoutConstraint.Relation.lessThanOrEqual, toItem: nil, attribute: NSLayoutConstraint.Attribute.notAnAttribute, multiplier: 1, constant: self.view.frame.height * 0.50)
        alertController.view.addConstraint(height)
        
        /// modal present alertController
        self.present(alertController, animated: true, completion: nil)
    }
    
    /// 根据错误码展示提示信息
    ///
    /// - Parameter error: ErrorInfo
    func showErrorMessgae(error: ErrorInfo?) {
        if let error = error {
            if let errorDesc = ErrorUtils.getDesc(errorCode: error.retCode) {
                self.showHintController(title: "tips".localized, message: errorDesc)
            } else if let retMsg = error.retMsg {
                self.showHintController(title: "tips".localized, message: retMsg)
            } else {
                self.showHintController(title: "tips".localized, message: "unknownErrorType".localized)
            }
        } else {
            self.showHintController(title: "tips".localized, message: "systembusy".localized)
        }
    }
    
    /// 当键盘弹起时解决输入框被遮挡问题
    ///
    /// - Parameter views: 需要使用软键盘输入的文本控件列表
    func moveView(views: [UIView]) {
        NotificationCenter.default.addObserver(forName: UIResponder.keyboardWillChangeFrameNotification, object: nil, queue: nil) { [weak self] (notification) in
            guard let weakSelf = self, let responseView = views.first(where: { $0.isFirstResponder }) else { return }
            
            // 获取键盘的坐标
            let endFrame = (notification.userInfo?[UIResponder.keyboardFrameEndUserInfoKey] as! NSValue).cgRectValue
            let keyboardY: CGFloat = kScreenHeight - endFrame.origin.y
            // 获取目标的Y值
            let targetY: CGFloat = responseView.convert(CGPoint(x: 0, y: responseView.height), to: weakSelf.view).y
            // 为防止遮挡需要偏移的距离
            let offset = targetY + keyboardY - weakSelf.view.height + 24 // 24是textfield和键盘上方的间距，可以自由设定
            
            UIView.animate(withDuration: 0.25) {
                if offset > 0 {
                    weakSelf.view.bounds = CGRect(x: 0, y: offset, width: weakSelf.view.width, height: weakSelf.view.height)
                } else {
                    weakSelf.view.bounds = CGRect(x: 0, y: 0, width: weakSelf.view.width, height: weakSelf.view.height)
                }
            }
        }
    }
    
    /// 找到以本viewController为基础中最顶层的viewController，若没有模态视图，则最顶层的viewController就是它本身
    var presentedViewControllerVisibleInWindow: UIViewController {
        var vc = self
        while (vc.presentedViewController != nil) {
            vc = vc.presentedViewController!
        }
        return vc
    }
}

extension UIViewController {
    /// viewController
    /// - Parameters:
    ///   - name: name
    ///   - identifier: identifier
    /// - Returns: UIViewController
    func viewController (name: String, identifier: String) -> UIViewController {
        return UIStoryboard(name: name, bundle: nil).instantiateViewController(withIdentifier: identifier)
    }
}

extension UIViewController {
    /// push
    /// - Parameters:
    ///   - sbname: storyboardName
    ///   - sbId: storyboardId
    ///   - takeInfo: takeInfo
    ///   - checkLogin: checkLogin
    func push(storyboardName sbname:String,
              storyboardId sbId:String,
              takeInfo: Any? = nil,
              checkLogin: Bool = true) {
        if !checkLogin || MTP2BusinessCore.shared.getLoginStatus() { /// 检查登录状态
            let board: UIStoryboard = UIStoryboard.init(name: sbname, bundle: nil)
            if let baseViewController = board.instantiateViewController(withIdentifier: sbId) as? BaseViewController,
               let model = takeInfo {
                baseViewController.takeInfo = model
                self.navigationController?.pushViewController(baseViewController, animated: true)
            } else {
                let viewController = board.instantiateViewController(withIdentifier: sbId)
                self.navigationController?.pushViewController(viewController, animated: true)
            }
        } else { /// 未登录
            let login = UIStoryboard(name: "Main", bundle: nil).instantiateViewController(withIdentifier: "Login")
            self.navigationController?.pushViewController(login, animated: true)
        }
    }
    
    /// present
    /// - Parameters:
    ///   - sbname: sbname
    ///   - sbId: sbId
    ///   - isNav: isNav
    ///   - style: modalTransitionStyle
    func present(storyboardName sbname:String,
                 storyboardId sbId:String,
                 needNavigationController isNav: Bool = true,
                 modalTransitionStyle style: UIModalTransitionStyle = .crossDissolve) {
        let board: UIStoryboard = UIStoryboard.init(name: sbname, bundle: nil)
        let viewController = board.instantiateViewController(withIdentifier: sbId)
        
        if isNav == true {
            let navigationController = BaseNavigationController(rootViewController: viewController)
            navigationController.modalPresentationStyle = .overFullScreen
            navigationController.modalTransitionStyle = style
            self.present(navigationController, animated: true, completion: nil)
        } else {
            viewController.modalPresentationStyle = .overFullScreen
            viewController.modalTransitionStyle = style
            self.present(viewController, animated: true, completion: nil)
        }
    }
}