//
//  KMFormActionButtonPopWindowController.swift
//  PDF Reader Pro
//
//  Created by wanjun on 2024/2/2.
//

import Cocoa

@objcMembers
class KMFormActionButtonPopWindowController: NSWindowController {
    
    @IBOutlet private weak var actionLabel: NSTextField!
    @IBOutlet private weak var actionComboBox: NSComboBox!
    @IBOutlet private weak var label: NSTextField!
    @IBOutlet private weak var labelTextField: NSTextField!
    @IBOutlet private weak var presenceLabel: NSTextField!
    @IBOutlet private weak var visibleComboBox: NSComboBox!
    @IBOutlet private weak var emailButton: NSButton!
    @IBOutlet private weak var emailTextField: NSTextField!
    @IBOutlet private weak var urlButton: NSButton!
    @IBOutlet private weak var urlTextField: NSTextField!
    @IBOutlet private weak var cancelButton: NSButton!
    @IBOutlet private weak var okButton: NSButton!
    
    private var settingButtonWidget: CPDFButtonWidgetAnnotation?
    private var isEdit: Bool = false
    private var handler: ((Int) -> Void)!

    // MARK: Dealloc
    
    deinit {
        NotificationCenter.default.removeObserver(self)
    }
    
    // MARK: init Methods

    convenience init(buttonWidget: CPDFButtonWidgetAnnotation, isEdit: Bool) {
        self.init(windowNibName: "KMFormActionButtonPopWindowController")
        
        settingButtonWidget = buttonWidget
        self.isEdit = isEdit
    }
    
    // MARK: Life Cycle
    
    override func windowDidLoad() {
        super.windowDidLoad()
        
        localizedString()
        if isEdit {
            configuViews()
        }
        emailTextField.inputContext?.allowedInputSourceLocales = [NSAllRomanInputSourcesLocaleIdentifier]
        urlTextField.inputContext?.allowedInputSourceLocales = [NSAllRomanInputSourcesLocaleIdentifier]
    }
    
    // MARK: Private Methods
    
    func localizedString() {
        cancelButton.title = NSLocalizedString("Cancel", comment: "")
        okButton.title = NSLocalizedString("OK", comment: "")
        actionLabel.stringValue = NSLocalizedString("Action", comment: "")
        presenceLabel.stringValue = NSLocalizedString("Button Field", comment: "")
        label.stringValue = NSLocalizedString("Label", comment: "")
        labelTextField.stringValue = NSLocalizedString("Submit", comment: "")
        
        actionComboBox.removeAllItems()
        actionComboBox.stringValue = NSLocalizedString("Submit", comment: "")
        actionComboBox.addItems(withObjectValues: [
            NSLocalizedString("Submit", comment: ""),
            NSLocalizedString("Print", comment: "")
        ])
        actionComboBox.selectItem(at: 0)
        
        visibleComboBox.removeAllItems()
        visibleComboBox.stringValue = NSLocalizedString("Visible", comment: "")
        visibleComboBox.addItems(withObjectValues: [
            NSLocalizedString("Visible", comment: ""),
            NSLocalizedString("Hidden", comment: ""),
            NSLocalizedString("Visible but doesn't print", comment: "")
        ])
        
        emailButton.title = NSLocalizedString("Submit to Email", comment: "")
        urlButton.title = NSLocalizedString("Submit to URL", comment: "")
        
        urlTextField.isEnabled = false
        emailTextField.isEnabled = true
        
        NotificationCenter.default.addObserver(self, selector: #selector(textFieldDidChange), name: NSControl.textDidChangeNotification, object: labelTextField)
    }

    func configuViews() {
        labelTextField.stringValue = settingButtonWidget?.caption() ?? NSLocalizedString("Submit", comment: "")
        let shouldDisplay = settingButtonWidget?.shouldDisplay() ?? false
        let shouldPrint = settingButtonWidget?.shouldPrint() ?? false
        
        if shouldDisplay && !shouldPrint {
            visibleComboBox.selectItem(at: 2)
        } else if shouldDisplay && shouldPrint {
            visibleComboBox.selectItem(at: 0)
        } else if shouldPrint && !shouldDisplay {
            visibleComboBox.selectItem(at: 0)
        }
        
        if settingButtonWidget?.mouseUpAction() is CPDFAnnotation {
            actionComboBox.selectItem(at: 1)
            urlButton.isEnabled = false
            emailButton.isEnabled = false
            urlTextField.isEnabled = false
            emailTextField.isEnabled = false
        } else {
            actionComboBox.selectItem(at: 0)
            urlButton.isEnabled = true
            emailButton.isEnabled = true
            urlTextField.isEnabled = true
            emailTextField.isEnabled = true
            
            if let urlAction = settingButtonWidget!.mouseUpAction() as? CPDFURLAction {
                if urlAction.url().fileURL.absoluteString.hasPrefix("mailto:") {
                    urlButton.state = .off
                    emailButton.state = .on
                    emailTextField.stringValue = urlAction.url().fileURL.absoluteString
                } else {
                    urlButton.state = .on
                    emailButton.state = .off
                    urlTextField.stringValue = urlAction.url().fileURL.absoluteString
                }
            }
        }
    }
    
    @IBAction private func dismissSheet(_ sender: Any) {
        if #available(macOS 10.13, *) {
            NSApp.endSheet(window!, returnCode: (sender as? NSControl)?.tag ?? 0)
        } else {
            NSApp.endSheet(window!)
        }
        window!.orderOut(self)
    }
    
    @objc private func didEndSheet(_ sheet: NSWindow?, returnCode: Int, contextInfo: UnsafeMutableRawPointer?) {
        if contextInfo != nil && self.handler != nil {
            self.handler!(returnCode)
        }
    }
    
    func beginSheetModal(for window: NSWindow?, completionHandler handler: ((Int) -> Void)?) {
        if window != nil {
            window!.beginSheet(self.window!) { ModalResponse in
                self.handler?(ModalResponse.rawValue)
            }
        }
        self.handler = handler
    }
    
    // MARK: Button Actions
    
    @IBAction func comboBoxClicked_ActionSelect(_ sender: Any) {
        guard let comboBox = sender as? NSComboBox else {
            return
        }
        
        if comboBox.indexOfSelectedItem == 1 {
            emailButton.isEnabled = false
            urlButton.isEnabled = false
            urlTextField.stringValue = ""
            emailTextField.stringValue = ""
            urlTextField.isEnabled = false
            emailTextField.isEnabled = false
            
            labelTextField.stringValue = NSLocalizedString("Print", comment: "")
        } else {
            emailButton.isEnabled = true
            urlButton.isEnabled = true
            urlTextField.isEnabled = true
            emailTextField.isEnabled = true
            labelTextField.stringValue = NSLocalizedString("Submit", comment: "")
        }
    }

    @IBAction func buttonClicked_MailOrURLSelect(_ sender: Any) {
        guard let button = sender as? NSButton else {
            return
        }
        
        if button.tag == 1 {
            emailButton.state = NSControl.StateValue.off
            urlButton.state = NSControl.StateValue.on
            emailTextField.isEnabled = false
            urlTextField.isEnabled = true
        } else {
            emailButton.state = NSControl.StateValue.on
            urlButton.state = NSControl.StateValue.off
            urlTextField.isEnabled = false
            emailTextField.isEnabled = true
        }
    }

    @IBAction func buttonClicked_CancelSetting(_ sender: Any) {
        dismissSheet(cancelButton as Any)
    }
    
    @IBAction func buttonClicked_ConfirmSetting(_ sender: Any) {
        if actionComboBox.indexOfSelectedItem == 0 {
            var url: String?
            if urlButton.state == .on {
                if urlTextField.stringValue.hasPrefix("http://") || urlTextField.stringValue.hasPrefix("https://") {
                    url = urlTextField.stringValue
                } else {
                    url = "http://\(urlTextField.stringValue)"
                }
            } else {
                if emailTextField.stringValue.hasPrefix("mailto:") {
                    url = emailTextField.stringValue
                } else {
                    url = "mailto:\(emailTextField.stringValue)"
                }
            }
            if let action = CPDFURLAction(url: url) {
                settingButtonWidget?.setMouseUpAction(action)
            }
        } else {
            if let action = CPDFNamedAction(name: .print) {
                settingButtonWidget?.setMouseUpAction(action)
            }
        }
        
        if visibleComboBox.indexOfSelectedItem == 0 {
            settingButtonWidget?.setShouldDisplay(true)
            settingButtonWidget?.setShouldPrint(true)
        } else if visibleComboBox.indexOfSelectedItem == 1 {
            settingButtonWidget?.setShouldDisplay(false)
            settingButtonWidget?.setShouldPrint(true)
        } else {
            settingButtonWidget?.setShouldDisplay(true)
            settingButtonWidget?.setShouldPrint(false)
        }
        
        settingButtonWidget?.setCaption(labelTextField.stringValue)

        NotificationCenter.default.post(name: NSNotification.Name("KMFormActionButtonChange"), object: nil, userInfo: nil)
        dismissSheet(okButton as Any)
    }
    
    // MARK: NSNotification Action
    
    @objc func textFieldDidChange() {
        settingButtonWidget?.setCaption(labelTextField.stringValue)
        
        NotificationCenter.default.post(name: Notification.Name("KMFormActionButtonLabelTextField"), object: self)
    }
}