//
//  KMNPopToolbarWindow.swift
//  PDF Reader Pro
//
//  Created by 丁林圭 on 2025/2/6.
//

import Cocoa

class KMNAnnotationPopToolbarWindow: NSWindow {
    
    static let shared = KMNAnnotationPopToolbarWindow()
    
    public var annotationPopMode:KMNAnnotationPopMode = KMNAnnotationPopMode(pdfAnnotations: [])
    
    convenience init() {
        let rect = NSRect(x: 0, y: 0, width: 400, height: 44)
        let styleMask: NSWindow.StyleMask = [.fullSizeContentView]
        self.init(contentRect: rect, styleMask: styleMask, backing: .buffered, defer: false)
    }
    
    override init(contentRect: NSRect, styleMask style: NSWindow.StyleMask, backing backingStoreType: NSWindow.BackingStoreType, defer flag: Bool) {
        super.init(contentRect: contentRect, styleMask: style, backing: backingStoreType, defer: flag)
        
        let contentViewC = KMNPopAnnotationViewController.shared
        
        self.contentViewController = contentViewC
        
        self.titlebarAppearsTransparent = true
        self.titleVisibility = .hidden
        self.isMovable = false
        
        self.contentView?.wantsLayer = true
        self.contentView?.layer?.cornerRadius = 4
        self.contentView?.layer?.masksToBounds = true
        
        self.backgroundColor = .clear
    }
    
    func show(relativeTo positioningRect: NSRect, of positioningView: CPDFListView, preferredEdge: NSRectEdge) {
        self.orderFront(nil)
        let contentViewC = KMNPopAnnotationViewController.shared
        contentViewC.closeWindowCallback = {[weak self] in
            self?.closeWindow(listView: positioningView)
        }
        contentViewC.frameCallback = {[weak self] in
            self?.updateFrame(listView: positioningView)
        }
    }
    
    
    //MARK: - Public
    public func updateFrame(listView:CPDFListView) {
        let activeAnnotations = annotationPopMode.annotations
        let page = activeAnnotations.first?.page
        let windowFram = listView.window?.frame ?? CGRectZero
        
        if(page != nil) {
            let pageRect = listView.selectionMultipleBounds(with: activeAnnotations)
            let positioningRect = listView.convert(pageRect, from: page!)
            if (CGRectIntersectsRect(positioningRect, listView.frame)) {
                let view: NSView? = nil
                let position = listView.convert(positioningRect, to: view)
                var positionNew = position.origin
                
                positionNew.x += windowFram.origin.x + position.width/2
                positionNew.y += windowFram.origin.y + position.height
                
                var positionRect = self.frame
                positionRect.origin.x = positionNew.x - positionRect.width/2
                positionRect.origin.y = positionNew.y + popOffSet
                
                var listViewWindRect = listView.convert(listView.frame, to: view)
                listViewWindRect.origin.x += windowFram.origin.x
                listViewWindRect.origin.y += windowFram.origin.y
                
                if CGRectGetMaxY(positionRect) > CGRectGetMaxY(listViewWindRect) {
                    positionRect.origin.y = positionNew.y - popOffSet - position.height - positionRect.size.height
                }
                
                if CGRectGetMinX(positionRect) < CGRectGetMinX(listViewWindRect) {
                    positionRect.origin.x = CGRectGetMinX(listViewWindRect)
                }
                
                if CGRectGetMaxX(positionRect) > CGRectGetMaxX(listViewWindRect) {
                    positionRect.origin.x = CGRectGetMaxX(listViewWindRect) - positionRect.width
                }
                
                self.setFrame(positionRect, display: true)
                let popA = KMNPopAnnotationViewController.shared

                popA.updateUILanguage()
            } else {
                
            }
        }
    }
    
    public func closeWindow(listView:CPDFListView?) {
        if self.isVisible == true {
            listView?.window?.removeChildWindow(self)
            self.orderOut(nil)
        }
        
        let popA = KMNPopAnnotationViewController.shared
        popA.closePopView()
    }
   
    override var canBecomeKey: Bool {
        if(annotationPopMode.popType == .formRadioAnnotation || annotationPopMode.popType == .formAnnotation ||
           annotationPopMode.popType == .linkAnnotation) {
            return true
        } else {
            return false
        }
    }
    
    override var canBecomeMain: Bool {
        if(annotationPopMode.popType == .formRadioAnnotation || annotationPopMode.popType == .formAnnotation ||
           annotationPopMode.popType == .linkAnnotation) {
            return true
        } else {
            return false
        }
    }
    
}