//
//  KMMergeSettingWindowController.swift
//  PDF Reader Pro
//
//  Created by tangchao on 2022/11/25.
//

import Cocoa

typealias KMMergeSettingWindowControllerCancelClick = (_ window: NSWindow)->()
typealias KMMergeSettingWindowControllerMergeClick = (_ windowController: NSWindowController)->()
class KMMergeSettingWindowController: NSWindowController {

    @IBOutlet weak var titleLabel: NSTextField!
    
    @IBOutlet weak var odd_even_mergeComboBox: NSButton!
    @IBOutlet weak var helpButton: NSButton!
    
    @IBOutlet weak var pageSizeLabel: NSTextField!
    @IBOutlet weak var pageSizeComboBox: NSComboBox!
    
    @IBOutlet weak var customSizeView: NSView!
    
    @IBOutlet weak var customWitdhView: NSView!
    @IBOutlet weak var customWidthTextField: NSTextField!
    @IBOutlet weak var customHeigthView: NSView!
    @IBOutlet weak var customHeightTextField: NSTextField!
    
    @IBOutlet weak var mergeButton: NSButton!
    @IBOutlet weak var cancelButton: NSButton!
    
    var selectedIndex: Int = 0
    
    var cancelClick: KMMergeSettingWindowControllerCancelClick!
    var mergeClick: KMMergeSettingWindowControllerMergeClick!
    
    override func windowDidLoad() {
        super.windowDidLoad()

        titleLabel.stringValue = NSLocalizedString("合并设置", comment: "")
        
        odd_even_mergeComboBox.title = NSLocalizedString("奇偶页面穿插合并", comment: "")
        odd_even_mergeComboBox.state = .off
        helpButton.target = self
        helpButton.action = #selector(helpButtonAction)
        
        pageSizeLabel.stringValue = NSLocalizedString("页面大小", comment: "")
        pageSizeComboBox.stringValue = NSLocalizedString("原始页面大小", comment: "")
        pageSizeComboBox.removeAllItems()
        pageSizeComboBox.addItems(withObjectValues: [NSLocalizedString("原始页面大小", comment: ""),
                                                     NSLocalizedString("A4", comment: ""),
                                                     NSLocalizedString("A3", comment: ""),
                                                     NSLocalizedString("U.S.Letter", comment: ""),
                                                     NSLocalizedString("U.S.Legal", comment: ""),
                                                     NSLocalizedString("自定义(595*841mm)", comment: "")])
        pageSizeComboBox.delegate = self
        pageSizeComboBox.isEditable = false
        customSizeView.isHidden = true
        
        for view in [customWitdhView, customHeigthView] {
            view?.wantsLayer = true
            view?.layer?.borderWidth = 1
            view?.layer?.borderColor = NSColor.black.cgColor
            view?.layer?.cornerRadius = 4
        }
        for textField in [customWidthTextField, customHeightTextField] {
            textField?.focusRingType = .none
            textField?.delegate = self
        }
        
        mergeButton.title = NSLocalizedString("合并", comment: "")
        mergeButton.target = self
        mergeButton.action = #selector(mergeButtonAction)
        cancelButton.title = NSLocalizedString("取消", comment: "")
        cancelButton.target = self
        cancelButton.action = #selector(cancelButtonAction)
    }
    
    @objc func mergeButtonAction() {
        guard let callback = mergeClick else {
            return
        }
        
        callback(self)
    }
    
    @objc func cancelButtonAction() {
        guard let callback = cancelClick else {
            return
        }
        
        callback(self.window!)
    }
    
    @objc func helpButtonAction() {
        let popover = NSPopover()
        popover.behavior = .transient
        let controller = KMMergePopoverViewController.init(nibName: "KMMergePopoverViewController", bundle: nil)
        popover.contentViewController = controller
        
        popover .show(relativeTo: helpButton.bounds, of: helpButton, preferredEdge: .maxY)
    }
}

extension KMMergeSettingWindowController: NSComboBoxDelegate {
    func comboBoxSelectionDidChange(_ notification: Notification) {
        if notification.object as! NSComboBox != pageSizeComboBox {
            return
        }
        
        let box: NSComboBox = notification.object as! NSComboBox
        let index = box.indexOfSelectedItem
        if index < 0 {
            return
        }
        
        selectedIndex = index
        if index == 5 {
            self.customSizeView.isHidden = false
            let value: String = pageSizeComboBox.itemObjectValue(at: pageSizeComboBox.numberOfItems-1) as! String
            let array = value.components(separatedBy: "*")
            if array.count <= 1 {
                self.customWidthTextField.stringValue = "595"
                self.customHeightTextField.stringValue = "841"
                return
            }
            var heigth: String = ""
            heigth = (array.last?.components(separatedBy: "mm").first!)!
            
            var width: String = ""
            width = (array.first?.components(separatedBy: NSLocalizedString("(", comment: "")).last)!
            
            self.customWidthTextField.stringValue = width
            self.customHeightTextField.stringValue = heigth
        } else {
            self.customSizeView.isHidden = true
        }
    }
    
    func controlTextDidChange(_ obj: Notification) {
        if customWidthTextField.isEqual(to: obj.object) {
            let textField: NSTextField = obj.object as! NSTextField
            var value: String = ""
            for ch in textField.stringValue {
                if ch != "0" && ch != "1" && ch != "2" && ch != "3" && ch != "4" && ch != "5" && ch != "6" && ch != "7" && ch != "8" && ch != "9" {

                } else {
                    if value.isEmpty && ch == "0" {
                        
                    } else {
                        value.append(ch)
                    }
                }
            }
            customWidthTextField.stringValue = value
            
            pageSizeComboBox.removeAllItems()
            var string: String = ""
            string.append(NSLocalizedString("自定义", comment: ""))
            string.append("(")
            string.append(customWidthTextField.stringValue)
            string.append("*")
            string.append(customHeightTextField.stringValue)
            string.append("mm)")
            pageSizeComboBox.addItems(withObjectValues: [NSLocalizedString("原始页面大小", comment: ""),
                                                         "A4",
                                                         "A3",
                                                         "U.S.Letter",
                                                         "U.S.Legal",
                                                         string])
            pageSizeComboBox.stringValue = string
        } else if customHeightTextField.isEqual(to: obj.object) {
            let textField: NSTextField = obj.object as! NSTextField
            var value: String = ""
            for ch in textField.stringValue {
                if ch != "0" && ch != "1" && ch != "2" && ch != "3" && ch != "4" && ch != "5" && ch != "6" && ch != "7" && ch != "8" && ch != "9" {

                } else {
                    if value.isEmpty && ch == "0" {
                        
                    } else {
                        value.append(ch)
                    }
                }
            }
            customHeightTextField.stringValue = value
            
            pageSizeComboBox.removeAllItems()
            var string: String = ""
            string.append(NSLocalizedString("自定义", comment: ""))
            string.append("(")
            string.append(customWidthTextField.stringValue)
            string.append("*")
            string.append(customHeightTextField.stringValue)
            string.append("mm)")
            pageSizeComboBox.addItems(withObjectValues: [NSLocalizedString("原始页面大小", comment: ""),
                                                         "A4",
                                                         "A3",
                                                         "U.S.Letter",
                                                         "U.S.Legal",
                                                         string])
            pageSizeComboBox.stringValue = string
        }
    }
}