//
//  KMBookMarkViewController.swift
//  PDF Reader Pro
//
//  Created by lxy on 2022/10/10.
//

import Cocoa
import KMComponentLibrary

typealias KMBookMarkViewControllerBookMarkDidChange = (_ controller: KMBookMarkViewController, _ bookMarks: [KMBookMarkItem]) -> Void

@objc protocol KMBookMarkViewControllerDelegate: NSObjectProtocol {
    @objc optional func bkControllerAddAction(controller: KMBookMarkViewController, bookmark: CPDFBookmark?, info: [String : Any]?)
}

extension KMNSearchKey.wholeWords {
    static let bookmark = "BookmarkSearchWholeWordsKey"
}

extension KMNSearchKey.caseSensitive {
    static let bookmark = "BookmarkSearchCaseSensitiveKey"
}

class KMBookMarkViewController: KMNBotaBaseViewController {
    @IBOutlet weak var topView: NSView!
    @IBOutlet weak var addBookButton: NSButton!
    @IBOutlet weak var titleTextField: NSTextField!
    @IBOutlet weak var sortButton: NSButton!
    
    @IBOutlet var topSeplineView: NSView!
    
    @IBOutlet weak var bookTableView: KMBotaTableView!
    @IBOutlet weak var emptyView: NSView!
    @IBOutlet weak var bigTipLabel: NSTextField!
    @IBOutlet weak var tipLabel: NSTextField!
    
    var dataSource: [KMBookMarkItem] = []
    var renameTextField: NSTextField?
    var renamePDFBook: KMBookMarkItem?
    var renameCellView: KMBookCellView?
    
    weak var document: CPDFDocument?
    
    var isLocalEvent: Bool = false //区分外部点击还是内部点击
    
    var selectItems: [KMBookMarkItem] = []
    
    var bookMarkDidChange: KMBookMarkViewControllerBookMarkDidChange?
    
    weak var delegate: KMBookMarkViewControllerDelegate?
    
    private lazy var handdler_ = KMNBookmarkHanddler()
    // 升序
    private var sortType_: KMSortMode = .ascending
    
    private lazy var addButton_: ComponentButton = {
        let view = ComponentButton()
        view.properties = ComponentButtonProperty(type: .text_gray, size: .xxs, onlyIcon: true, icon: NSImage(named: "KMBookmarkAdd"))
        return view
    }()
    
    private var emptyView_: ComponentEmpty = {
        let view = ComponentEmpty()
        view.properties = ComponentEmptyProperty(emptyType: .noBookmark, state: .normal, image: NSImage(named: "KMBookmarkEmpty"), text: KMLocalizedString("No Bookmark"), subText: KMLocalizedString("Here is the description."))
        return view
    }()
    
    var handdler: KMNBookmarkHanddler {
        get {
            return handdler_
        }
    }
    
    private var groupView: ComponentGroup? = ComponentGroup.createFromNib(in: ComponentLibrary.shared.componentBundle())
    
    convenience init() {
        self.init(nibName: "KMBookMarkViewController", bundle: nil)
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        handdler.delegate = self

        titleTextField.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-bold")
        
        addBookButton.addSubview(addButton_)
        addButton_.frame = addBookButton.bounds
        addButton_.autoresizingMask = [.width, .height]
        addButton_.setTarget(self, action: #selector(addBookmarkAction))
            
        bookTableView.style = NSTableView.Style.plain
        bookTableView.allowsMultipleSelection = true
        bookTableView.doubleAction = #selector(renameBookAction)
        
        bookTableView.hasImageToolTips = true
        bookTableView.botaDelegate = self
        
        sortButton.image = NSImage(named: "KMImageNameBotaBookmarkSortIcon")
        sortButton.target = self
        sortButton.action = #selector(sortAction)
        
        topView.addSubview(searchButton)
        searchButton.km_add_size_constraint(size: NSMakeSize(24, 24))
        searchButton.km_add_centerY_constraint(constant: 1)
        searchButton.km_add_trailing_constraint(equalTo: addBookButton, attribute: .leading, constant: -4)
        searchButton.setTarget(self, action: #selector(_searchAction))
        
        emptyView.addSubview(emptyView_)
        emptyView_.km_add_top_constraint(constant: 232)
        emptyView_.km_add_bottom_constraint()
        emptyView_.km_add_leading_constraint()
        emptyView_.km_add_trailing_constraint()
        
        if let data = headerSearchView {
            topView.addSubview(data)
            headerSearchView?.frame = topView.bounds
            headerSearchView?.autoresizingMask = [.width, .height]
        }
        hideHeaderSearch()
        headerSearchView?.itemClick = { [weak self] idx, params in
            if idx == 1 { // 显示搜索限制条件
                guard let button = params.first as? ComponentButton else {
                    return
                }
                self?.showSearchGroupView(sender: button)
            } else if idx == 2 { // 关闭搜索
                self?.hideHeaderSearch()
                
                self?.reloadData()
            }
        }
        headerSearchView?.valueDidChange = { [weak self] sender, info in
            let value = info?[.newKey] as? String ?? ""
            
            self?.handdler.searchKey = value
            self?.reloadData()
        }
        
        self.reloadData()
    }
    
    override func updateUILanguage() {
        super.updateUILanguage()
        
        KMMainThreadExecute {
            self.titleTextField.stringValue = KMLocalizedString("Bookmarks")
        }
    }
    
    override func updateUIThemeColor() {
        super.updateUIThemeColor()
        
        KMMainThreadExecute {
            self.view.wantsLayer = true
            let color = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-middle")
            self.view.layer?.backgroundColor = color.cgColor
            
            self.topSeplineView.wantsLayer = true
            self.topSeplineView.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorBorder/divider").cgColor
            
            self.titleTextField.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
            
            self.headerSearchView?.wantsLayer = true
            self.headerSearchView?.layer?.backgroundColor = color.cgColor
            self.headerSearchView?.bottomLine.wantsLayer = true
            self.headerSearchView?.bottomLine.layer?.backgroundColor = KMNColorTools.colorPrimary_border1().cgColor
            
            self.addButton_.properties.icon = NSImage(named: "KMBookmarkAdd")
            self.addButton_.reloadData()
            
            self.searchButton.properties.icon = NSImage(named: "KMImageNameOutlineSearch")
            self.searchButton.reloadData()
        }
    }
    
    func reloadData() {
        let array = document?.bookmarks() ?? [CPDFBookmark]()
        var bookMarks: [KMBookMarkItem] = []
        for bookMark in array {
            let item = KMBookMarkItem()
            item.bookMark = bookMark
            item.index = UInt(bookMark.pageIndex)
            item.label = bookMark.label
            bookMarks.append(item)
        }
        self.dataSource = bookMarks
        
        if self.sortType_ == .descending {
            self.dataSource.sort(){$0.bookMark.pageIndex >= $1.bookMark.pageIndex}
        } else {
            self.dataSource.sort(){$0.bookMark.pageIndex < $1.bookMark.pageIndex}
        }
        
        if handdler.isValidSearchMode() {
            var items: [KMBookMarkItem] = []
            for item in dataSource {
                if hasContainString(handdler.searchKey, bookmark: item.bookMark) {
                    items.append(item)
                }
            }
            self.dataSource = items
        }
        
        self.bookTableView.reloadData()
        
        self.updateAddBookMarkState()
    }
    
    func addBookMarkAndEdit(newBookMark: KMBookMarkItem) {
        _ = self.dataSource.contains { KMBookMarkItem in
            if KMBookMarkItem.bookMark == newBookMark.bookMark {
                let index = KMOCToolClass.arrayIndexOf(array: self.dataSource, item: KMBookMarkItem) ?? 0
                self.didSelectItem(row: index, event: NSEvent())
                self.renameBookWithRow(row: index)
                return true
            }
            return false
        }
    }
    
    override func addNotifations() {
        super.addNotifations()

        NotificationCenter.default.addObserver(self, selector: #selector(KMPDFViewCurrentPageDidChangedNotification), name: NSNotification.Name.init(rawValue: "KMPDFViewCurrentPageDidChanged"), object: nil)
        NotificationCenter.default.addObserver(self, selector: #selector(documentPageCountChangedNotification), name: NSNotification.Name.init(rawValue: "CPDFDocumentPageCountChangedNotification"), object: nil)
    }
    
    func showSearchGroupView(sender: ComponentButton) {
        var viewHeight: CGFloat = 8
        var menuItemArr: [ComponentMenuitemProperty] = []
        let titles = ["Whole Words","Case Sensitive"]
        for i in titles {
            let menuI = ComponentMenuitemProperty(text: KMLocalizedString(i))
            menuItemArr.append(menuI)
            viewHeight += 36
        }
        
        if let info = menuItemArr.first {
            if KMDataManager.ud_bool(forKey: KMNSearchKey.wholeWords.bookmark) {
                info.righticon = NSImage(named: "KMNImageNameMenuSelect")
            }
        }
        if let info = menuItemArr.last {
            if KMDataManager.ud_bool(forKey: KMNSearchKey.caseSensitive.bookmark) {
                info.righticon = NSImage(named: "KMNImageNameMenuSelect")
            }
        }
        
        let groupView = ComponentGroup.createFromNib(in: ComponentLibrary.shared.componentBundle())
        searchGroupView = groupView
        groupView?.groupDelegate = self
        groupView?.frame = CGRectMake(310, 0, 200, viewHeight)
        groupView?.updateGroupInfo(menuItemArr)
        
        var point = sender.convert(sender.frame.origin, to: nil)
        point.y -= viewHeight
        groupView?.showWithPoint(point, relativeTo: sender)
        searchGroupTarget = sender
    }
    
    override func showHeaderSearch() {
        super.showHeaderSearch()
        
        handdler.isSearchMode = true
    }
    
    override func hideHeaderSearch() {
        super.hideHeaderSearch()
        
        handdler.isSearchMode = false
    }
    
    func hasContainString(_ searchString: String, bookmark: CPDFBookmark) -> Bool {
        var label = bookmark.label ?? ""
        var searchLabel = searchString
        if handdler.caseSensitive == false {
            label = label.lowercased()
            searchLabel = searchLabel.lowercased()
        }
        
        if label.contains(searchLabel) {
            if handdler.wholeWords {
                let words = label.words()
                return words.contains(searchLabel)
            }
            return true
        }
        return false
    }
    
    //MARK: - Menu Action
    
    @objc func renameBookAction() {
        if self.bookTableView.selectedRowIndexes.count == 1 {
            self.renameBookWithRow(row: self.bookTableView.selectedRowIndexes.first!)
        } else {
            __NSBeep()
        }
    }
    
    
    @IBAction func escButtonAction(_ sender: Any) {
        self.bookTableView.deselectAll(nil)
    }
    
    @IBAction func addBookmarkAction(_ sender: Any) {
        let currentPageIndex = handdler.currentPageIndex
        if let data = handdler.bookmark(for: currentPageIndex) {
            delegate?.bkControllerAddAction?(controller: self, bookmark: data, info: ["result" : false])
            return
        }
        
        handdler.addCurrentBookmark(callback: { [unowned self] bookmark in
            self.delegate?.bkControllerAddAction?(controller: self, bookmark: bookmark, info: nil)
            self.reloadData()
        })
    }
    
    @objc func changeLocationAction() {
        if self.bookTableView.selectedRowIndexes.count == 1 {
            let item = self.dataSource[self.bookTableView.selectedRowIndexes.first!]
            let alter = NSAlert()
            alter.alertStyle = NSAlert.Style.informational
            alter.messageText = KMLocalizedString("Are you sure you want to set the selected page as the bookmark location?", comment: "")
            alter.addButton(withTitle: KMLocalizedString("Yes", comment:""))
            alter.addButton(withTitle: KMLocalizedString("No", comment:""))
            let modlres = alter.runModal()
            if modlres == NSApplication.ModalResponse.alertFirstButtonReturn {
                let bookMark = KMBookMarkItem()
                bookMark.bookMark = item.bookMark
                bookMark.label = item.label
                bookMark.index = UInt(handdler.currentPageIndex)
                self.changeLocation(oldBookMark: item,
                                    newBookMark: bookMark)
            }
        } else {
            __NSBeep()
        }
    }
    
    @objc func deleteBookAction() {
        if self.bookTableView.selectedRowIndexes.count != 0 {
            var bookMarks:[KMBookMarkItem] = []
            for index in self.bookTableView.selectedRowIndexes {
                let item = self.dataSource[index]
                bookMarks.append(item)
            }
            self.deleteBookMark(bookMarks: bookMarks)
        } else {
            __NSBeep()
        }
    }
    
    private func renameBookWithRow(row: Int) {
        self.renamePDFBook = self.dataSource[row]
        self.renameCellView = self.bookTableView.view(atColumn: 0, row: row, makeIfNecessary: true) as? KMBookCellView
        self.renameTextField = self.renameCellView?.inputTF
        self.renameTextField?.delegate = self
        self.renameTextField?.isEditable = true
        self.renameTextField?.becomeFirstResponder()
    }
    
    @objc func sortAction(_ sender: NSButton) {
        let type = self.sortType_
        if type == .ascending {
            self.sortType_ = .descending
        } else {
            self.sortType_ = .ascending
        }
        
        self.reloadData()
    }
    
    @objc private func _searchAction() {
        searchButton.properties.state = .normal
        searchButton.reloadData()
        
        showHeaderSearch()
    }
    
    //MARK: - Noti
    
    @objc func KMPDFViewCurrentPageDidChangedNotification(notification: NSNotification) {
        if notification.object is CPDFDocument {
            let pdfdocument : CPDFDocument = notification.object as! CPDFDocument
            if pdfdocument.isEqual(document) {
                if !isLocalEvent {
                    var containSelIndex:Bool = false
                    for (index, value) in self.dataSource.enumerated() {
                        if value.bookMark == document?.bookmark(forPageIndex: UInt(handdler.currentPageIndex)) {
                            containSelIndex = true
                            self.didSelectItem(row: index, event: NSEvent())
                            break
                        }
                    }
                    if !containSelIndex {
                        self.cancelSelect()
                    }
                }
                isLocalEvent = false
            }
            self.updateAddBookMarkState()
        }
    }
    
    @objc func documentPageCountChangedNotification(notification: NSNotification) {
        if notification.object is CPDFDocument {
            DispatchQueue.main.asyncAfter(deadline: DispatchTime.now() + 0.3) { [weak self] in
                let pdfdocument : CPDFDocument = notification.object as! CPDFDocument
                if pdfdocument.isEqual(self?.document) {
                    self?.reloadData()
                }
            }
        }
    }
}

// MARK: - NSTextFieldDelegate

extension KMBookMarkViewController: NSTextFieldDelegate {
    func controlTextDidEndEditing(_ obj: Notification) {
        if (self.renameTextField!.isEqual(obj.object)) {
            let textField : NSTextField = obj.object as! NSTextField
            handdler.rename(bookmark: renamePDFBook!.bookMark, label: textField.stringValue)
            self.renameTextField?.isEditable = false
        }
    }
}

// MARK: - NSTableViewDelegate,NSTableViewDataSource

extension KMBookMarkViewController : NSTableViewDelegate,NSTableViewDataSource {
    func numberOfRows(in tableView: NSTableView) -> Int {
        let count = self.dataSource.count
        if count == 0 {
            self.emptyView.isHidden = false
        } else {
            self.emptyView.isHidden = true
        }
        return count
    }
    
    func tableView(_ tableView: NSTableView, viewFor tableColumn: NSTableColumn?, row: Int) -> NSView? {
        if row < self.dataSource.count {
            let item: KMBookMarkItem = self.dataSource[row]
            let cell : KMBookCellView = tableView.makeView(withIdentifier: NSUserInterfaceItemIdentifier(rawValue: "KMBookCellView"), owner: self) as! KMBookCellView
            if handdler.isValidSearchMode() {
                var label = item.bookMark.label ?? ""
                let attri = NSMutableAttributedString(string: label, attributes: [
                    .font : NSFont.SFProTextRegularFont(13),
                    .foregroundColor : KMNColorTools.colorText_1()])
                
                var _searchKey = handdler.searchKey
                if handdler.caseSensitive == false {
                    label = label.lowercased()
                    _searchKey = _searchKey.lowercased()
                }
                
                let ranges = label.ranges(of: _searchKey)
                for range in ranges.nsRnage {
                    attri.addAttributes([.font : NSFont.SFProTextBoldFont(13), .foregroundColor: KMNColorTools.colorPrimary_textLight()], range: range)
                }
                cell.inputTF.attributedStringValue = attri
            } else {
                cell.inputTF.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-regular")
                cell.inputTF.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/1")
                
                cell.inputTF.stringValue = item.bookMark.label
                cell.bookTitle.stringValue = "\(item.bookMark.pageIndex + 1)"
                cell.inputBox.borderWidth = 0
                if let data = item.bookMark.date {
                    cell.dateLabel.stringValue = KMTools.timeString(timeDate: data)
                } else {
                    cell.dateLabel.stringValue = ""
                }
            }
            
            cell.textFieldDidEndEditingCallback = { [weak self] textF in
                self?.renameCellView = cell
                self?.handdler.rename(bookmark: item.bookMark, label: textF.stringValue)
            }
            return cell
        }
        return nil
    }
    
    func tableView(_ tableView: NSTableView, rowViewForRow row: Int) -> NSTableRowView? {
        let rowView = KMBookMarkTableRowView()
        rowView.selectionHighlightStyle = .none
        if row < self.dataSource.count {
            rowView.model = self.dataSource[row]
            
            rowView.menuClickedAction = { [weak self] point in
                let idxs = self?.bookTableView.selectedRowIndexes.count ?? 0
                
                let tempView = self?.bookTableView.rowView(atRow: row, makeIfNecessary: false)
                var viewHeight: CGFloat = 0
                let items: [String] = ["Delete", "Add", "Rename", "Delete All"]
                var menuItemArr: [ComponentMenuitemProperty] = []
                for value in items {
                    let properties_Menuitem: ComponentMenuitemProperty = ComponentMenuitemProperty(multipleSelect: false,
                                                                                                       itemSelected: false,
                                                                                                       isDisabled: false,
                                                                                                       keyEquivalent: nil,
                                                                                                       text: KMLocalizedString(value),
                                                                                                       identifier: value)
                        
                    menuItemArr.append(properties_Menuitem)
                    viewHeight += 36
                }
                if idxs > 1 {
                    (menuItemArr.safe_element(for: 1) as? ComponentMenuitemProperty)?.isDisabled = true
                    (menuItemArr.safe_element(for: 2) as? ComponentMenuitemProperty)?.isDisabled = true
                }
                
                if self?.groupView != nil {
                    self?.groupView?.clickedAutoHide = false
                    self?.groupView?.groupDelegate = self
                    self?.groupView?.frame = CGRectMake(0, 0, 180, viewHeight)
                    self?.groupView?.updateGroupInfo(menuItemArr)
                    
                    self?.groupView?.showWithPoint(CGPoint(x: point.x, y: point.y - viewHeight), relativeTo: tempView)
                }
                return NSMenu()
            }
            
            rowView.mouseDownAction = { [unowned self] (view, event) in
                self.didSelectItem(row: row, event: event)
            }
            
            rowView.rightMouseDownAction = { [unowned self] (view, event) in
                if !KMOCToolClass.arrayContains(array: self.selectItems, annotation: rowView.model) ||
                    self.selectItems.count == 1 {
                    self.selectIndex(index: row)
                }
                
                if row < 0 || row >= self.dataSource.count {
                    return
                }
            }
            
            rowView.hoverCallback = { [unowned self] (mouseEntered, mouseBox) in
                if let value = ComponentLibrary.shared.getComponentValueFromKey("radius/xs") {
                    let currentValue = value as? CGFloat ?? 0
                    rowView.box?.cornerRadius = currentValue
                }
                
                self.bookTableView.enumerateAvailableRowViews { view, row in
                    if let data = view as? KMBookMarkTableRowView {
                        data.model.hover = false
                        data.reloadData()
                    }
                }
                if mouseEntered {
                    rowView.model.hover = true
                    rowView.reloadData()
                } else {
                    rowView.model.hover = false
                    rowView.reloadData()
                }
            }
        }
        return rowView
    }
    
    func tableView(_ tableView: NSTableView, heightOfRow row: Int) -> CGFloat {
        return 36
    }
    
    func tableView(_ tableView: NSTableView, shouldSelect tableColumn: NSTableColumn?) -> Bool {
        self.isLocalEvent = true
        return true
    }
    
    func tableView(_ tableView: NSTableView, shouldSelectRow row: Int) -> Bool {
        self.isLocalEvent = true
        return true
    }
    
    func tableViewSelectionDidChange(_ notification: Notification) {
//        if self.bookTableView.selectedRow == -1 {
//            self.cancelSelect()
//        }
    }
    
    func selectIndex(index: Int) {
        if index < 0 || index >= self.dataSource.count {
            return
        }
        self.bookTableView.selectRowIndexes(IndexSet(integer: IndexSet.Element(index)), byExtendingSelection: false)
        self.didSelectItem(row: index, event: NSEvent(), needJump: false)
    }

    func didSelectItem(row: Int, event: NSEvent?, needJump: Bool = true) {
        //当选中一个时
        if self.bookTableView.selectedRowIndexes.count == 1 || (event != nil &&
                                                                (!event!.modifierFlags.contains(NSEvent.ModifierFlags.command) &&
                                                                !event!.modifierFlags.contains(NSEvent.ModifierFlags.shift))) {
            self.bookTableView.selectRowIndexes(IndexSet(integer: IndexSet.Element(row)), byExtendingSelection: false)
        }
        
        //原始数据置空
        for model in self.selectItems {
            self.dataSource.contains { KMBookMarkItem in
                if KMBookMarkItem.bookMark == model.bookMark {
                    let index = KMOCToolClass.arrayIndexOf(array: self.dataSource, item: KMBookMarkItem) ?? 0
                    if index != nil {
                        KMBookMarkItem.select = false
                        if self.bookTableView.rowView(atRow: index, makeIfNecessary: false) != nil {
                            let rowView: KMBookMarkTableRowView = self.bookTableView.rowView(atRow: index, makeIfNecessary: false) as! KMBookMarkTableRowView
                            rowView.reloadData()
                        }
                    }
                    return true
                }
                return false
            }
        }
    
        //获取最新数据
        var items: [KMBookMarkItem] = []
        for index in self.bookTableView.selectedRowIndexes {
            if index < self.dataSource.count {
                let model: KMBookMarkItem = self.dataSource[index]
                model.select = true
                if self.bookTableView.rowView(atRow: index, makeIfNecessary: false) != nil {
                    let rowView: KMBookMarkTableRowView = self.bookTableView.rowView(atRow: index, makeIfNecessary: false) as! KMBookMarkTableRowView
                    rowView.reloadData()
                }
                items.append(model)
            }
        }
        self.selectItems = items
        
        //刷新数据
        if needJump {
            self.updateListViewData()
        }
    }
    
    func updateListViewData() {
        if self.bookTableView.selectedRowIndexes.count == 1 &&
            self.bookTableView.selectedRowIndexes.first! < self.dataSource.count {
            let index = self.bookTableView.selectedRowIndexes.first
            let selectBookMark = self.dataSource[index!]
//            self.listView.go(toPageIndex: selectBookMark.bookMark.pageIndex, animated: true)
        }
    }
    
    func cancelSelect() {
        self.bookTableView.deselectAll(nil)
        for model in self.selectItems {
            model.select = false
            let index = self.dataSource.firstIndex(of: model)
            if index != nil {
                if (self.bookTableView.rowView(atRow: index!, makeIfNecessary: false) != nil) {
                    let rowView: KMBookMarkTableRowView = self.bookTableView.rowView(atRow: index!, makeIfNecessary: false) as! KMBookMarkTableRowView
                    rowView.reloadData()
                }
            }
        }
    }
    
    func updateAddBookMarkState() {
        addButton_.properties.isDisabled = !canAddBorkMark()
        addButton_.reloadData()
    }
    
    func canAddBorkMark() -> Bool {
        if document?.bookmarks() != nil && document?.bookmarks()?.count != 0 {
            for bookMark in document?.bookmarks() ?? [] {
                if bookMark.pageIndex == handdler.currentPageIndex {
                    return false
                }
            }
        }
        return true
    }
}

// MARK: - KMBotaTableViewDelegate

extension KMBookMarkViewController: KMBotaTableViewDelegate {
    func tableView(_ aTableView: NSTableView, imageContextForRow rowIndex: Int) -> AnyObject? {
        if aTableView.isEqual(to: self.bookTableView) {
            let cnt = self.dataSource.count
            if rowIndex >= cnt {
                return nil
            }
            let model = self.dataSource[rowIndex]
            return model.bookMark
            
        }
        return nil
    }
}

//MARK: - undoRedo

extension KMBookMarkViewController {
    func changeLocation(oldBookMark: KMBookMarkItem, newBookMark: KMBookMarkItem) {
        document?.removeBookmark(forPageIndex: oldBookMark.index)
        document?.addBookmark(newBookMark.label, forPageIndex: newBookMark.index)
        
        reloadData()
    }
    
    func renamePDFBook(bookmark : KMBookMarkItem! , label:String) {
        if bookmark.bookMark.label == label {
            return
        }
        let temp = bookmark.bookMark.label
        
        bookmark.bookMark.label = label
        self.reloadData()
        
        var indexSet = IndexSet()
        indexSet.insert(self.bookTableView.row(for: self.renameCellView!))
        self.bookTableView.selectRowIndexes(indexSet, byExtendingSelection: false)
    }
    
    func deleteBookMark(bookMarks: [KMBookMarkItem]) {
        for bookMark in bookMarks {
            if ((document?.removeBookmark(forPageIndex: bookMark.index)) != nil) {
                KMPrint("删除标签成功")
            }
        }
        self.reloadData()
        
        guard let callBack = bookMarkDidChange else { return }
        
        callBack(self, bookMarks)
    }
    
    func addBookMark(bookMarks: [KMBookMarkItem]) {
        for bookMark in bookMarks {
            document?.addBookmark(bookMark.label, forPageIndex: UInt(bookMark.index))
        }
        self.reloadData()
        
        if bookMarks.count == 1 {
            DispatchQueue.main.async { [self] in
                if document?.bookmark(forPageIndex: UInt(bookMarks.first!.index)) != nil {
                    let item = KMBookMarkItem()
                    item.bookMark = (document?.bookmark(forPageIndex: UInt(bookMarks.first!.index)))!
                    item.label = item.bookMark.label
                    item.index = UInt(item.bookMark.pageIndex)
                    self.addBookMarkAndEdit(newBookMark: item)
                }
            }
        }
        
        guard let callBack = bookMarkDidChange else { return }
        
        callBack(self, bookMarks)
    }
    
    @IBAction func undo(_ sender: Any) {
        handdler.undo()
    }
    
    @IBAction func redo(_ sender: Any) {
        handdler.redo()
    }
}

// MARK: - NSMenuDelegate, NSMenuItemValidation

extension KMBookMarkViewController: NSMenuDelegate, NSMenuItemValidation {
    func validateMenuItem(_ menuItem: NSMenuItem) -> Bool {
        let action = menuItem.action
        if (action == #selector(undo)) {
            return handdler.canUndo()
        }
        if (action == #selector(redo)) {
            return handdler.canRedo()
        }
        
        if action == #selector(renameBookAction) ||
            action == #selector(changeLocationAction) ||
            action == #selector(deleteBookAction) {
            if self.bookTableView.selectedRowIndexes.count > 1 {
                if action == #selector(changeLocationAction) {
                    return false
                } else if action == #selector(renameBookAction) {
                    return false
                }
            } else if self.bookTableView.selectedRowIndexes.count == 1 {
                return true
            } else {
                if self.bookTableView.selectedRowIndexes.count == 0 {
                    if action == #selector(changeLocationAction) {}
                } else {
                    return false
                }
            }
        }
        return true
    }
}

extension KMBookMarkViewController: KMNBookmarkHanddlerDelegate {
    func handdler(_ handdler: KMNBookmarkHanddler, didAdd bookmark: CPDFBookmark?, info: [String : Any]?) {
        KMMainThreadExecute {
            self.reloadData()
        }
    }
    
    func handdler(_ handdler: KMNBookmarkHanddler, didRemove bookmark: CPDFBookmark?, info: [String : Any]?) {
        KMMainThreadExecute {
            self.reloadData()
        }
    }
    
    func handdler(_ handdler: KMNBookmarkHanddler, didRemoveAll info: [String : Any]?) {
        KMMainThreadExecute {
            self.reloadData()
        }
    }
    
    func handdler(_ handdler: KMNBookmarkHanddler, didRename bookmark: CPDFBookmark?, info: [String : Any]?) {
        KMMainThreadExecute {
            self.reloadData()
        }
    }
}

extension KMBookMarkViewController: ComponentGroupDelegate {
    func componentGroupDidSelect(group: ComponentGroup?, menuItemProperty: ComponentMenuitemProperty?) {
        if group == groupView {
            if let selItem = menuItemProperty {
                let index = group?.menuItemArr.firstIndex(of: selItem)
                if index == 0 {
                    group?.removeFromSuperview()
                    var pageIndexs = IndexSet()
                    for i in bookTableView.selectedRowIndexes {
                        if let item = dataSource.safe_element(for: i) as? KMBookMarkItem {
                            pageIndexs.insert(item.bookMark.pageIndex)
                        }
                    }
                    _ = handdler.removeBookmarks(for: pageIndexs)
                } else if index == 1 {
                    
                } else if index == 2 {
                    group?.removeFromSuperview()
                    
                    renameBookAction()
                } else if index == 3 {
                    Task {
                        let resp = await KMAlertTool.runModel(message: KMLocalizedString("此操作将删除文档中的所有书签，是否继续？"), buttons: [KMLocalizedString("OK"), KMLocalizedString("No")])
                        if resp == .alertFirstButtonReturn {
                            _ = handdler.removeAllBookmarks()
                        }
                    }
                }
            }
        } else if group == searchGroupView {
            guard let menuI = menuItemProperty else {
                return
            }
            let idx = group?.menuItemArr.firstIndex(of: menuI)
            if idx == 0 {
                let key = KMNSearchKey.wholeWords.bookmark
                let value = KMDataManager.ud_bool(forKey: key)
                KMDataManager.ud_set(!value, forKey: key)
                
                handdler.wholeWords = !value
            } else if idx == 1 {
                let key = KMNSearchKey.caseSensitive.bookmark
                let value = KMDataManager.ud_bool(forKey: key)
                KMDataManager.ud_set(!value, forKey: key)
                
                handdler.caseSensitive = !value
            }
        }
    }
    
    func componentGroupDidDismiss(group: ComponentGroup?) {
        if group == groupView {
            groupView?.removeFromSuperview()
        } else if group == searchGroupView {
            searchGroupTarget?.properties.state = .normal
            searchGroupTarget?.reloadData()
            searchGroupTarget = nil
        }
    }
}

class KMBookMarkItem: NSObject {
    var label: String = ""
    var index: UInt = 0
    var bookMark: CPDFBookmark = CPDFBookmark()
    var select: Bool = false
    var hover: Bool = false
}