//
//  KMSearchReplaceWindowController.swift
//  PDF Reader Pro
//
//  Created by User-Tangchao on 2024/8/7.
//

import Cocoa
import KMComponentLibrary

class KMSearchReplaceWindowController_Window: NSWindow {
    override var canBecomeMain: Bool {
        return true
    }
    
    override var canBecomeKey: Bool {
        return true
    }
}

class KMSearchReplaceWindowController: KMNBaseWindowController {
    @IBOutlet weak var titleBarBox: NSBox!
    @IBOutlet weak var tabBox: NSBox!
    @IBOutlet weak var searchBox: NSBox!
    @IBOutlet weak var replaceBox: NSBox!
    
    var replaceCallback: (() -> Void)?
    var itemClick: KMCommonClickBlock?
    var closeCallback: (() -> Void)?
    
    private var _modalSession: NSApplication.ModalSession?
    
    var handdler: KMNSearchHanddler = KMNSearchHanddler() {
        didSet {
            if handdler.searchKey?.count != 0 && handdler.searchResults.count == 0{
                self.search(keyboard: handdler.searchKey ?? "")
            } else {
                self.reloadData()
            }
        }
    }
    
    private var currentSel: CPDFSelection?
    
    private lazy var titleBarView_: KMNSearchReplaceTitleBarView = {
        let view = KMNSearchReplaceTitleBarView()
        return view
    }()
    private lazy var searchItemView_: KMNSearchReplaceSearchItemView = {
        let view = KMNSearchReplaceSearchItemView()
        return view
    }()
    private lazy var replaceItemView_: KMNSearchReplacePopItemView = {
        let view = KMNSearchReplacePopItemView()
        return view
    }()
    
    var previousButton: ComponentButton {
        get {
            return searchItemView_.previousButton
        }
    }
    var nextButton: ComponentButton {
        get {
            return searchItemView_.nextButton
        }
    }
    var replaceAllButton: ComponentButton {
        get {
            return replaceItemView_.replaceAllButton
        }
    }
    var replaceButton: ComponentButton {
        get {
            return replaceItemView_.replaceButton
        }
    }
    
    private var searchGroupView_: ComponentGroup?
    
    convenience init(with pdfView: CPDFView?, type: KMNBotaSearchType) {
        self.init(windowNibName: "KMSearchReplaceWindowController")
        
        self.handdler.pdfView = pdfView
        handdler.type = type
    }

    override func windowDidLoad() {
        super.windowDidLoad()

        self.initDefaultValue()
        self.switchType(handdler.type)
    }
    
    @objc func didMoveNotification(_ noti: Notification) {
        let window = self.window
        let frame = window?.frame ?? .zero
        let supFrame = window?.parent?.frame ?? .zero
        
        KMPrint("frame: \(frame)")
        KMPrint("supFrame: \(supFrame)")
    }
    
    func initDefaultValue() {
        window?.isMovableByWindowBackground = true
        
        window?.contentView?.wantsLayer = true
        window?.contentView?.layer?.cornerRadius = ComponentLibrary.shared.getComponentValueFromKey("radius/m") as? CGFloat ?? 8
        window?.contentView?.layer?.masksToBounds = true
        window?.backgroundColor = .clear
        
        titleBarBox.boxType = .custom
        titleBarBox.borderWidth = 0
        titleBarBox.contentView = titleBarView_
        titleBarView_.itemClick = { [weak self] idx, _ in
            if idx == 1 {
                self?._closeAction(NSButton())
            } else if idx == 2 {
                self?._closeAction(NSButton())
                
                self?.itemClick?(1, self?.handdler)
            } else if idx == 3 {
                self?.switchType(.search, animate: true)
                self?.itemClick?(3, self?.handdler)
                self?.search(keyboard: self?.handdler.searchKey ?? "")
            } else if idx == 4 {
                self?.switchType(.replace, animate: true)
                self?.itemClick?(4, self?.handdler)
                self?.search(keyboard: self?.handdler.searchKey ?? "")
            }
        }
        
        searchBox.borderWidth = 0
        searchBox.contentView = searchItemView_
        searchItemView_.itemClick = { [unowned self] idx, _ in
            if idx == 1 { // Previous
                _previousAction(NSButton())
            } else if idx == 2 { // next
                _nextAction(NSButton())
            } else if idx == 3 {
                showSearchGroupView(sender: ComponentButton())
            }
        }
        searchItemView_.valueDidChange = { [unowned self] value, _ in
            if let data = value as? String {
                handdler.searchKey = data
                search(keyboard: data)
                
                updateButtonStatus()
            }
        }
        searchItemView_.inputDidEditBlock = { [unowned self] in
            updateButtonStatus()
            let value = searchItemView_.inputValue
            if value.isEmpty {
            } else {
                currentSel = nil
            }
        }
        searchItemView_.input.properties.showSuffix = false
        searchItemView_.input.reloadData()
        
        replaceBox.borderWidth = 0
        replaceBox.contentView = replaceItemView_
        replaceItemView_.itemClick = { [unowned self] idx, _ in
            if idx == 1 {
                _replaceAllAction(NSButton())
            } else if idx == 2 {
                _replaceAction(NSButton())
            }
        }
        replaceItemView_.valueDidChange = { [unowned self] value, _ in
            if let data = value as? String {
                handdler.replaceKey = data
            }
        }
        
        updateButtonStatus()
        if searchItemView_.inputValue.isEmpty {
        } else {
            self.currentSel = nil
        }
    }
    
    override func updateUILanguage() {
        super.updateUILanguage()
    }
    
    override func updateUIThemeColor() {
        super.updateUIThemeColor()
        
        KMMainThreadExecute {
            self.searchItemView_.input.properties.leftIcon = NSImage(named: "KMImageNameBotaSearch")
            self.searchItemView_.input.reloadData()
            self.replaceItemView_.input.properties.leftIcon = NSImage(named: "KMImagenameBotaSearchInputPrefiex")
            self.replaceItemView_.input.reloadData()
            
            self.updateViewColor()
        }
    }
    
    func updateButtonStatus() {
        let value = searchItemView_.inputValue
        if value.isEmpty {
            previousButton.properties.isDisabled = true
            previousButton.reloadData()
            nextButton.properties.isDisabled = true
            nextButton.reloadData()
            replaceButton.properties.isDisabled = true
            replaceButton.reloadData()
            replaceAllButton.properties.isDisabled = true
            replaceAllButton.reloadData()
        } else {
            replaceButton.properties.isDisabled = false
            replaceButton.reloadData()
            replaceAllButton.properties.isDisabled = false
            replaceAllButton.reloadData()
            
            previousButton.properties.isDisabled = (self.handdler.showIdx == 0) ? true : false
            previousButton.reloadData()
            nextButton.properties.isDisabled = ((self.handdler.showIdx == self.handdler.resultCount - 1) || self.handdler.resultCount == 0) ? true : false
            nextButton.reloadData()
        }
    }
    
    private func updateViewColor() {
        let isDark = KMAppearance.isDarkMode()
        if isDark {
            self.window?.contentView?.wantsLayer = true
            self.window?.contentView?.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/popup").cgColor
            self.window?.contentView?.border(ComponentLibrary.shared.getComponentColorFromKey("colorBorder/popUp"), 1, 8)
        } else {
            self.window?.contentView?.wantsLayer = true
            self.window?.contentView?.layer?.backgroundColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/popup").cgColor
            self.window?.contentView?.border(ComponentLibrary.shared.getComponentColorFromKey("colorBorder/popUp"), 1, 8)
        }
        
        self.switchType(handdler.type)
    }
    
    func switchType(_ type: KMNBotaSearchType, animate: Bool = false) {
        if type == .replace {
            if KMMemberInfo.shared.isLogin == false {
                KMLoginWindowsController.shared.showWindow(nil)
                return
            }
        }
        
        handdler.type = type
        self.titleBarView_.type = type
        
        if type == .search { // 248 112
            self.replaceBox.isHidden = true
            
            var frame = self.window?.frame ?? .zero
            let height: CGFloat = 156
            let heightOffset = frame.size.height - height
            frame.origin.y += heightOffset
            frame.size.height = height
            self.window?.setFrame(frame, display: true, animate: animate)
            self.window?.minSize = frame.size
            self.window?.maxSize = frame.size
        } else if type == .replace { // 388 208
            DispatchQueue.main.async {
                self.replaceBox.isHidden = false
            }
            
            var frame = self.window?.frame ?? .zero
            let height:CGFloat = 252
            let heightOffset = frame.size.height-height
            frame.origin.y += heightOffset
            frame.size.height = height
            self.window?.setFrame(frame, display: true, animate: animate)
            self.window?.minSize = frame.size
            self.window?.maxSize = frame.size
            
            // 将事件回调出去
            self.replaceCallback?()
        }
    }

    func search(keyboard: String) {
        let isCase = KMDataManager.ud_bool(forKey: KMNSearchKey.caseSensitive.botaSearch)
        let isWholeWord = KMDataManager.ud_bool(forKey: KMNSearchKey.wholeWords.botaSearch)
        let isEditing = self.handdler.pdfView?.isEditing() ?? false
        
        self._beginLoading()
        self.handdler.search(keyword: keyboard, isCase: isCase, isWholeWord: isWholeWord, isEdit: isEditing, callback: { [weak self] datas in
            self?._endLoading()
            
            self?.reloadData()
        })
    }
    
    func reloadData() {
        let handdler = self.handdler
        searchItemView_.inputValue = handdler.searchKey ?? ""
        replaceItemView_.inputValue = handdler.replaceKey ?? ""
        
        if handdler.showIdx != 0 {
            let model = self.handdler.searchResults[handdler.showIdx]
            self.handdler.showSelection(model.selection)
        } else {
            let sels = handdler.searchResults
            if let sel = sels.first?.selection {
                handdler.showSelection(sel)
            } else {
                handdler.showSelection(CPDFSelection())
            }
        }
        self._showIndexTip()
        self.updateButtonStatus()
    }
}

//MARK: Actions
extension KMSearchReplaceWindowController {
    @objc private func _closeAction(_ sender: NSButton) {
        self.window?.orderOut(nil)
        self.handdler.clearData()
        self.closeCallback?()
    }
    
    @objc public func _previousAction(_ sender: NSButton?) {
        let index = self.handdler.previous()
        if index < self.handdler.searchResults.count && index >= 0{
            let model = self.handdler.searchResults[index]
            self.handdler.showSelection(model.selection)
            self._showIndexTip()
            self.updateButtonStatus()
        }
    }
    
    @objc public func _nextAction(_ sender: NSButton?) {
        let index = self.handdler.next()
        if index < self.handdler.searchResults.count && index >= 0 {
            let model = self.handdler.searchResults[index]
            self.handdler.showSelection(model.selection)
            self._showIndexTip()
            self.updateButtonStatus()
        }
    }
    
    @objc private func _checkAction(_ sender: NSButton) {
        self.currentSel = nil
    }
    
    @objc private func _searchTabAction(_ sender: NSButton) {
        self.switchType(.search, animate: true)
    }
    
    @objc private func _replaceTabAction(_ sender: NSButton) {
        self.switchType(.replace, animate: true)
    }
    
    @objc private func _replaceAction(_ sender: NSButton) {
        let isEditing =  self.handdler.pdfView?.isEditing() ?? false
        if isEditing == false {
            NSSound.beep()
            return
        }
        guard let selection = self.currentSel else { return }
        let searchS = self.searchItemView_.inputValue
        let replaceS = self.replaceItemView_.inputValue
        self.handdler.replace(searchS: searchS, replaceS: replaceS, sel: selection) { [weak self] newSel in
            self?.handdler.showSelection(newSel)
        }
    }
    
    @objc private func _replaceAllAction(_ sender: NSButton) {
        let isEditing =  self.handdler.pdfView?.isEditing() ?? false
        if isEditing == false {
            NSSound.beep()
            return
        }
        
        let datas = self.handdler.pdfView?.document.findEditSelections() ?? []
        if datas.isEmpty {
            _showNoResultsAlert()
            return
        }
        
        let searchS = self.searchItemView_.inputValue
        let replaceS = self.replaceItemView_.inputValue
        self._beginLoading()
        DispatchQueue.global().async {
            self.handdler.pdfView?.document.replaceAllEditText(with: searchS, toReplace: replaceS)
            self.currentSel = nil
            
            DispatchQueue.main.async {
                self._endLoading()
                self.handdler.pdfView?.setHighlightedSelection(nil, animated: false)
                self.handdler.pdfView?.setNeedsDisplayForVisiblePages()
            }
        }
    }
}

//MARK: Alert
extension KMSearchReplaceWindowController {
    private func _showNoResultsAlert() {
        _ = _showAlert(style: .critical, message: KMLocalizedString("No related content found, please change keyword."), info: "", buttons: [KMLocalizedString("OK", comment: "")])
    }
    
    private func _showAlert(style: NSAlert.Style, message: String, info: String, buttons: [String]) -> NSApplication.ModalResponse {
        let alert = NSAlert()
        alert.alertStyle = style
        alert.messageText = message
        alert.informativeText = info
        for button in buttons {
            alert.addButton(withTitle: button)
        }
        return alert.runModal()
    }
    
    private func _showIndexTip() {
        DispatchQueue.main.async {
            if self.handdler.resultCount == 0 {
                self.searchItemView_.input.properties.rightText = ""
            } else {
                self.searchItemView_.input.properties.rightText = "\(self.handdler.showIdx+1)/\(self.handdler.resultCount)"
            }
            self.searchItemView_.input.reloadData()
        }
    }
}

//MARK: ComponentGroupDelegate
extension KMSearchReplaceWindowController: ComponentGroupDelegate {
    func showSearchGroupView(sender: ComponentButton) {
        var viewHeight: CGFloat = 8
        var menuItemArr: [ComponentMenuitemProperty] = []
        let titles = ["Search", "Find and Replace", "", "Whole Words", "Case Sensitive"]
        for i in titles {
            if i.isEmpty {
                let menuI = ComponentMenuitemProperty.divider()
                menuItemArr.append(menuI)
                viewHeight += 8
            } else {
                let menuI = ComponentMenuitemProperty(text: KMLocalizedString(i))
                menuItemArr.append(menuI)
                viewHeight += 36
            }
        }
        
        if handdler.type == .search {
            menuItemArr.first?.righticon = NSImage(named: "KMNImageNameMenuSelect")
        } else if handdler.type == .replace {
            let info = menuItemArr.safe_element(for: 1) as? ComponentMenuitemProperty
            info?.righticon = NSImage(named: "KMNImageNameMenuSelect")
        }
        if let info = menuItemArr.safe_element(for: 3) as? ComponentMenuitemProperty {
            if KMDataManager.ud_bool(forKey: KMNSearchKey.wholeWords.botaSearch) {
                info.righticon = NSImage(named: "KMNImageNameMenuSelect")
            }
        }
        if let info = menuItemArr.last {
            if KMDataManager.ud_bool(forKey: KMNSearchKey.caseSensitive.botaSearch) {
                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)
        
        let senderView = self.searchItemView_.input
        var point = senderView.convert(senderView.frame.origin, to: nil)
        point.y -= viewHeight
        point.y -= 30
        groupView?.showWithPoint(point, relativeTo: senderView)
//        searchGroupTarget = sender
    }
    
    func componentGroupDidSelect(group: ComponentGroup?, menuItemProperty: ComponentMenuitemProperty?) {
        if group == searchGroupView_ {
            guard let menuI = menuItemProperty else {
                return
            }
            let idx = group?.menuItemArr.firstIndex(of: menuI)
            if idx == 0 { // search
                switchType(.search)
            } else if idx == 1 { // replace
                switchType(.replace)
                
            } else if idx == 3 {
                let key = KMNSearchKey.wholeWords.botaSearch
                let value = KMDataManager.ud_bool(forKey: key)
                KMDataManager.ud_set(!value, forKey: key)
                
                currentSel = nil
                let data = searchItemView_.inputValue
                if data.isEmpty {
                    search(keyboard: data)
                }
            } else if idx == 4 {
                let key = KMNSearchKey.caseSensitive.botaSearch
                let value = KMDataManager.ud_bool(forKey: key)
                KMDataManager.ud_set(!value, forKey: key)
                
                currentSel = nil
                
                let data = searchItemView_.inputValue
                if data.isEmpty {
                    search(keyboard: data)
                }
            }
        }
    }
}

//MARK: Load
extension KMSearchReplaceWindowController {
    private func _beginLoading() {
        self.window?.contentView?.beginLoading()
    }
    
    private func _endLoading() {
        self.window?.contentView?.endLoading()
    }
}

//MARK: Modal
extension KMSearchReplaceWindowController {
    func startModal(_ sender: AnyObject?) {
        NSApp.stopModal()
        
        var modalCode: NSApplication.ModalResponse?
        if let _win = self.window {
            self._modalSession = NSApp.beginModalSession(for: _win)
            repeat {
                modalCode = NSApp.runModalSession(self._modalSession!)
            } while (modalCode == .continue)
        }
    }
    
    func endModal(_ sender: AnyObject?) {
        if let session = self._modalSession {
            NSApp.stopModal()
            NSApp.endModalSession(session)
            self.window?.orderOut(self)
        }
        if let winC = self.window?.kmCurrentWindowC, winC.isEqual(to: self) {
            self.window?.kmCurrentWindowC = nil
        }
    }
    
}