//
//  KMNLeftSideViewController.swift
//  PDF Reader Pro
//
//  Created by 丁林圭 on 2024/11/2.
//

import Cocoa

import KMComponentLibrary

@objc protocol KMNLeftSideViewControllerDelegate: AnyObject {
    @objc optional func enterPageEditLeftSideViewController(leftSideViewController:KMNLeftSideViewController)
    
    @objc optional func changeSelectePageLeftSideViewController(leftSideViewController:KMNLeftSideViewController,pageIndex:Int)
    
    @objc optional func addBookmarkForLeftC(controller: KMNLeftSideViewController, bookmark: CPDFBookmark?, info: [String : Any]?)

    @objc optional func switchSearchPopWindow(controller: KMNLeftSideViewController)
    @objc optional func searchTypeDidChange(controller: KMNLeftSideViewController)
    
}

class KMNLeftSideViewController: KMNBaseViewController {
    
    weak open var leftSideViewDelegate: KMNLeftSideViewControllerDelegate?

    @IBOutlet var backContentBox: NSBox!
    
    @IBOutlet var headerBox: NSBox!
    
    @IBOutlet var bottomBox: NSBox!
    
    @IBOutlet weak var headerBoxHeightConst: NSLayoutConstraint!
    
    private var currentDocument:CPDFDocument?
    
    public var thumnailViewController:KMNThumnailViewController?
    
    private lazy var bookmarkViewC_: KMBookMarkViewController = {
        let controller = KMBookMarkViewController()
        controller.delegate = self
        return controller
    }()
    
    private lazy var outlineViewC_: KMOutlineViewController = {
        let contr = KMOutlineViewController(nibName: "KMOutlineViewController", bundle: nil)
        return contr
    }()
    
    private lazy var searchViewC_: KMBotaSearchViewController = {
        let con = KMBotaSearchViewController()
        con.delegate = self
        return con
    }()
    
    private lazy var annotationViewC_: KMLeftSideViewController = {
        let leftSideViewController = KMLeftSideViewController()
        leftSideViewController.delegate = self
        return leftSideViewController
    }()
    
    private lazy var aiInfoWindowVC: NSWindowController = {
        let aiConfigWindowVC = AINewConfigWindowController.currentWC()
        aiConfigWindowVC.window?.orderOut(nil)
        
        return aiConfigWindowVC
    }()
    
    var outlineViewC: KMOutlineViewController {
        get {
            return outlineViewC_
        }
    }
    
    var bookmarkViewC: KMBookMarkViewController {
        get {
            return bookmarkViewC_
        }
    }
    
    var searchViewC: KMBotaSearchViewController {
        get {
            return searchViewC_
        }
    }
    
    var annoController: KMLeftSideViewController {
        get {
            return annotationViewC_
        }
    }
    
    lazy var thumbnailHeaderViewController: KMNThumnailHeaderViewController = {
        let controller = KMNThumnailHeaderViewController(nibName: "KMNThumnailHeaderViewController", bundle: nil)
        controller.view.frame = headerBox.bounds
        controller.view.autoresizingMask = [.width, .height] // Use flexible for better resizing
        return controller
    }()
    
    public var leftsideType:KMPDFSidebarType = .none {
        didSet {
            switch leftsideType {
            case .search:
                headerBoxHeightConst.constant = 0
                bottomBox.contentView = searchViewC_.view
            case .thumbnail:
                headerBoxHeightConst.constant = 40
                headerBox.contentView = thumbnailHeaderViewController.view
                bottomBox.contentView = thumnailViewController?.view
                self.view.layoutSubtreeIfNeeded()
                reloadData()
            case .bookmark:
                headerBoxHeightConst.constant = 0

                bottomBox.contentView = bookmarkViewC_.view
                bookmarkViewC_.document = currentDocument
                reloadData()
            case .outline:
                headerBoxHeightConst.constant = 0
                bottomBox.contentView = outlineViewC_.view
                reloadData()
            case .annotation:
                headerBoxHeightConst.constant = 0
                bottomBox.contentView = annotationViewC_.view
            case .aiTools:
                headerBoxHeightConst.constant = 0
                if let view = aiInfoWindowVC.window?.contentView {
                    bottomBox.contentView = view
                }
            default: break
            }
        }
    }
    public func reloadData() {
        NSObject.cancelPreviousPerformRequests(withTarget: self, selector: #selector(reloadIfData), object: nil)

        DispatchQueue.main.asyncAfter(deadline: .now() + 0.3) {
            self.reloadIfData()
        }
    }
    
    @objc public func reloadIfData() {
        switch leftsideType {
        case .search:
            break
        case .thumbnail:
            thumnailViewController?.reloadDatas()
            break
        case .bookmark:
            bookmarkViewC_.reloadData()
            break
        case .outline:
            outlineViewC_.reloadData()
            break
        case .annotation:
            annoController.note_reloadDataIfNeed()
            break
        case .aiTools:
            break
        default: break
        }
    }
    
    
    public func changeDocument(document: CPDFDocument?) {
        currentDocument = document
    }
    
    public func changeLeftSideBounds() {
        thumnailViewController?.updateThumbnailSize()
    }
    
    init(_ document: CPDFDocument) {
        super.init(nibName: "KMNLeftSideViewController", bundle: nil)
        
        currentDocument = document
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
                
        initThumnailView()
    }
    
    override func updateUIThemeColor() {
        super.updateUIThemeColor()
        
        headerBox.borderColor = ComponentLibrary.shared.getComponentColorFromKey("colorBorder/divider")
        headerBox.fillColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-middle")
        bottomBox.fillColor = ComponentLibrary.shared.getComponentColorFromKey("colorBg/layout-middle")
    }
    
    private func initThumnailView() {
        thumnailViewController = KMNThumnailViewController.init(currentDocument)
        thumnailViewController?.view.frame = bottomBox.bounds
        thumnailViewController?.thumnailViewDelegate = self
        thumnailViewController?.thumbnailBaseViewDelegate = self
        thumnailViewController?.view.autoresizingMask = [.width, .height]
    }
    
    // MARK: - Public Methods
    public func pageCountChangedAction(document: CPDFDocument?) {
        guard let theDocument = document, theDocument.isEqual(to: currentDocument) else {
            return
        }
        
        if leftsideType == .bookmark {
            bookmarkViewC.reloadData()
        }
    }
    
    public func currentPageDidChangedAction(listView: CPDFListView?) {
        guard let theDocument = listView?.document, theDocument.isEqual(to: currentDocument) else {
            return
        }
        if leftsideType == .bookmark {
            bookmarkViewC.currentPageDidChangedAction(document: currentDocument)
        } else if leftsideType == .thumbnail {
            var indexpaths: Set<IndexPath> = []
            indexpaths.insert(IndexPath(item: listView?.currentPageIndex ?? 0, section: 0))
            
            thumnailViewController?.selectionIndexPaths =  indexpaths
        }
    }
}

// MARK: - KMNThumbnailBaseViewDelegate
extension KMNLeftSideViewController: KMNThumbnailBaseViewDelegate {
    func changeIndexPathsThumbnailViewControlle(pageEditVC:KMNThumbnailBaseViewController?,selectionIndexPaths: Set<IndexPath>,selectionStrings:String ) {
        
        if(selectionIndexPaths.count == 1) {
            leftSideViewDelegate?.changeSelectePageLeftSideViewController?(leftSideViewController: self, pageIndex: selectionIndexPaths.first?.item ?? 0)
        }
    }

}

// MARK: - KMNThumnailViewControllerDelegate
extension KMNLeftSideViewController: KMNThumnailViewControllerDelegate {
    func enterPageEditThumnailViewController(thumnailViewController: KMNThumnailViewController) {
        leftSideViewDelegate?.enterPageEditLeftSideViewController?(leftSideViewController: self)
    }
}

// MARK: - KMBookMarkViewControllerDelegate
extension KMNLeftSideViewController: KMBookMarkViewControllerDelegate {
    func bkControllerAddAction(controller: KMBookMarkViewController, bookmark: CPDFBookmark?, info: [String : Any]?) {
        leftSideViewDelegate?.addBookmarkForLeftC?(controller: self, bookmark: bookmark, info: info)
    }
}

// MARK: - KMBotaSearchViewControllerDelegate
extension KMNLeftSideViewController: KMBotaSearchViewControllerDelegate {
    func switchSearchPopWindow(controller: KMBotaSearchViewController) {
        leftSideViewDelegate?.switchSearchPopWindow?(controller: self)
    }
    
    func searchTypeDidChange(controller: KMBotaSearchViewController) {
        leftSideViewDelegate?.searchTypeDidChange?(controller: self)
    }
}

// MARK: - KMLeftSideViewControllerDelegate
extension KMNLeftSideViewController: KMLeftSideViewControllerDelegate {
}