//
//  KMLoginWindowsController.swift
//  PDF Reader Pro
//
//  Created by wanjun on 2024/10/22.
//

import Cocoa
import Combine

typealias LoginResultComplete = (_ success: Bool) -> Void

@objcMembers
class KMLoginWindowsController: NSWindowController {
    
    @IBOutlet weak var leftBox: NSBox!
    @IBOutlet weak var leftImageView: NSImageView!
    @IBOutlet weak var leftsubImageView: NSImageView!
    @IBOutlet weak var leftsubLabel: NSTextField!

    @IBOutlet weak var rightBox: NSBox!
    
    var memberInfo: KMMemberInfo = KMMemberInfo.shared
    
    var signUpView: KMSignUpView?
    
    var loginResult: LoginResultComplete!
    
    private var viewModel = KMSignUpViewModel()
    private var cancellables = Set<AnyCancellable>()

    static let shared: KMLoginWindowsController = {
        let windowC = KMLoginWindowsController(windowNibName: "KMLoginWindowsController")
        return windowC
    }()


    override func windowDidLoad() {
        super.windowDidLoad()

        // Implement this method to handle any initialization after your window controller's window has been loaded from its nib file.
//        window?.styleMask.insert([.titled, .closable, .miniaturizable, .fullSizeContentView])
//        window?.titleVisibility = .visible
        
        leftsubLabel.stringValue = NSLocalizedString("Welcome to PDF Reader Pro", tableName: "MemberCenterLocalizable", comment: "")
        
        initializeUI()
        
        NotificationCenter.default.addObserver(self, selector: #selector(loginSuccessNotification), name: NSNotification.Name(rawValue: "MemberCenterLoginSuccess"), object: nil)
        
        NotificationCenter.default.addObserver(self, selector: #selector(logoutSuccessNotification), name: NSNotification.Name(rawValue: "MemberCenterLogoutSuccess"), object: nil)
        
        rightBox.addObserver(self, forKeyPath: "contentView", options: [.new, .old], context: nil)
    }
    
    override func showWindow(_ sender: Any?) {
        super.showWindow(sender)
        
        initializeUI()
    }
    
    deinit {
        rightBox.removeObserver(self, forKeyPath: "contentView")
    }
    
    // MARK: Private Action
    
    private func initializeUI() -> Void {
        if memberInfo.isLogin {
            window?.close()
        } else {
            guard let parentView = self.window?.contentView else { return }
            signUpView = KMSignUpView(model: viewModel, superView: parentView)
            if(signUpView != nil) {
                signUpView?.frame = rightBox.frame
                rightBox.contentView = signUpView!
            }
            
            let signUpView = KMSignUpView()
            signUpView.frame = rightBox.frame
            rightBox.contentView = signUpView
            rightBox.fillColor = NSColor(named: "membercentercolor") ?? NSColor.white
        }
    }
    
    @IBAction func leftButtonAction(_ sender: NSButton) {
        //远程控制
        if let loginContent = KMAdvertisementManager.manager.info.loginViewContent {
            if loginContent.content?.isEmpty == false {
                let content = loginContent.content?.first
                let string = KMAdvertisementModelTransition.transitionLanguage(langeuage: content?.linkURL)
                if string.count != 0  {
                    NSWorkspace.shared.open(URL.init(string: string)!)
                }
            }
        }
    }
    
    // 刷新左侧视图
    private func refreshSplitView() -> Void {
        leftImageView.image = NSImage(named: "WelcomePDFReaderPro1")
        self.leftsubLabel.isHidden = false
        self.leftsubImageView.isHidden = false

        if viewModel.screenType == .signUp {
            leftsubImageView.image = NSImage(named: "WelcomeSubPDFReaderPro")
            //远程控制
            if let loginContent = KMAdvertisementManager.manager.info.loginViewContent {
                if loginContent.content?.isEmpty == false {
                    let content = loginContent.content?.first
                    let url = URL(string: KMAdvertisementModelTransition.transitionImagePath(image: content?.image, highlight: false))
                    let _ = KMAdvertisementImage.imageWithURL(url: url) { [weak self] image in
                        guard let self = self else { return }
                        if image.isValid {
                            self.leftImageView.image = image
                            self.leftsubLabel.isHidden = true
                            self.leftsubImageView.isHidden = true
                        }
                    }
                }
            }
        } else {
            leftsubImageView.image = NSImage(named: "WelcomeSub2PDFReaderPro")
        }
    }
    
    // MARK: public Action
    
    @objc func loginSuccessNotification() -> Void {
        if let result = loginResult {
            result(true)
        }
        window?.close()
    }
    
    @objc func logoutSuccessNotification() -> Void {
        signUpView?.resetTextFileData()
    }
    
    func openWindow(_ complete: @escaping LoginResultComplete) -> Void {
        KMLoginWindowsController.shared.showWindow(nil)
        loginResult = complete
    }
    
    // MARK: Bind Method
    
    func bindViewModel() -> Void {
        viewModel.$screenType
            .receive(on: RunLoop.main)
            .sink { [weak self] newValue in
                self?.refreshSplitView()
            }
            .store(in: &cancellables)
        
    }
    
    override func observeValue(forKeyPath keyPath: String?, of object: Any?, change: [NSKeyValueChangeKey : Any]?, context: UnsafeMutableRawPointer?) {
        if keyPath == "contentView" {
            if let newContentView = change?[.newKey] as? NSView {
                if newContentView is KMSignUpView {
                    viewModel.screenType = .signUp
                } else if newContentView is KMForgotPasswordView {
                    viewModel.screenType = .forgotPassword
                } else if newContentView is KMEnterVerificationCodeView {
                    viewModel.screenType = .enterVerificationCode
                } else if newContentView is KMEnterNewPasswordView {
                    viewModel.screenType = .enterNewPassword
                }
                refreshSplitView()
            }
        }
    }
}