//
//  KMBackgroundController.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/11/7.
//

import Cocoa
import KMComponentLibrary

@objc protocol KMBackgroundControllerDelegate: AnyObject {
    
    @objc optional func kmBackgroundControllerDidUpdateMode(_ view: KMBackgroundController)
    
    //数据发生变化时处理
    @objc optional func kmBackgroundControllerDidWatermarkUpdated(_ view: KMBackgroundController)
}

class KMBackgroundController: NSViewController {
    
    @IBOutlet var contendView: NSView!
    
    @IBOutlet var preInfoView: NSView!
    @IBOutlet var propertyInfoView: NSView!
    
    var documentPreview: KMEditDocumentController = KMEditDocumentController.init()
    var propertyController: KMBackgroundPropertyController = KMBackgroundPropertyController.init()
    var templatesController: KMBGTemplateController = KMBGTemplateController()
    
    var saveTemplateMessage: ComponentMessage = ComponentMessage()
    
    var pdfDocument: CPDFDocument?
    
    var backgroundModel: KMBackgroundModel?
    
    var editSubType: KMPDFEditSubModeType = .none
    
    weak open var delegate: KMBackgroundControllerDelegate?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        
        documentPreview.view.frame = preInfoView.bounds
        documentPreview.view.autoresizingMask = [.width, .height]
        preInfoView.addSubview(documentPreview.view)
        
        propertyController.view.frame = propertyInfoView.bounds
        propertyController.view.autoresizingMask = [.width, .height]
        propertyController.delegate = self
        propertyController.view.isHidden = true
        propertyInfoView.addSubview(propertyController.view)
        
        templatesController.view.frame = propertyInfoView.bounds
        templatesController.view.autoresizingMask = [.width, .height]
        templatesController.delegate = self
        templatesController.view.isHidden = true
        propertyInfoView.addSubview(templatesController.view)
        
        setupProperty()
    }
    
    func setupProperty() {
        saveTemplateMessage.properties = ComponentMessageProperty(messageType: .success, title: KMLocalizedString("Saved Template"))
        
    }
    
    func resetUI() {
        propertyController.view.isHidden = true
        templatesController.view.isHidden = true
        
        if editSubType == .template {
            templatesController.view.isHidden = false
             
        } else if editSubType == .add {
            propertyController.view.isHidden = false
            propertyController.editSubType = editSubType
            
        } else if editSubType == .edit {
            propertyController.view.isHidden = false
            propertyController.editSubType = editSubType
            
        }
    }
    
    func reloadData() {
        if editSubType == .template {
            templatesController.reloadData()
            
            backgroundModel = templatesController.selectedBackground
        } else if editSubType == .add {
            propertyController.editSubType = editSubType
            propertyController.backgroundData = KMBackgroundManager.defaultManager.defaultModel
            propertyController.reloadData()
            
            backgroundModel = propertyController.backgroundData
        } else if editSubType == .edit {
            propertyController.editSubType = editSubType
            propertyController.reloadData()
            
            backgroundModel = propertyController.backgroundData
        }
        documentPreview.pdfDocument = pdfDocument
        documentPreview.reloadData()
        
        updatePDFDocumentBackground()
        delegate?.kmBackgroundControllerDidWatermarkUpdated?(self)
    }
    
    func updatePDFDocumentBackground() {
        if let data = backgroundModel {
            let cPDFBackground = documentPreview.pdfDocument?.background()
            cPDFBackground?.type = data.type
            if cPDFBackground?.type == .color {
                cPDFBackground?.color = data.color
            } else if cPDFBackground?.type == .image {
                if data.imagePath != nil {
                    cPDFBackground?.setImage(data.image())
                } else {
                    cPDFBackground?.setImage(nil)
                }
            }
            cPDFBackground?.scale =  data.scale
            cPDFBackground?.rotation = data.rotation
            cPDFBackground?.opacity = data.opacity
            cPDFBackground?.verticalAlignment = UInt(data.verticalMode)
            cPDFBackground?.horizontalAlignment = UInt(data.horizontalMode)
            cPDFBackground?.xOffset = data.horizontalSpace
            cPDFBackground?.yOffset = data.verticalSpace
            cPDFBackground?.isAllowsView = true
            
            cPDFBackground?.pageString = "0"
            cPDFBackground?.update()
            
            self.documentPreview.refreshUI()
            
        } else {
            pdfDocument?.background().clear()
            documentPreview.refreshUI()
        }
    }
    
    override func mouseUp(with event: NSEvent) {
        super.mouseUp(with: event)
        
        
    }
    
}

//MARK: - KMBackgroundPropertyControllerDelegate
extension KMBackgroundController: KMBackgroundPropertyControllerDelegate {
    func backgroundPropertyControllerDidUpdate(_ controller: KMBackgroundPropertyController) {
        backgroundModel = controller.backgroundData
        
        updatePDFDocumentBackground()
        
        delegate?.kmBackgroundControllerDidWatermarkUpdated?(self)
    }
    
    func backgroundPropertyControllerDidChangetoTemplate(_ controller: KMBackgroundPropertyController) {
        editSubType = .template
        resetUI()
        delegate?.kmBackgroundControllerDidUpdateMode?(self)

        backgroundModel = templatesController.selectedBackground
        reloadData()
    }
    
    func backgroundPropertyControllerSaveTemplateSuccess(_ controller: KMBackgroundPropertyController, _ data: KMBackgroundModel) {
        saveTemplateMessage.frame = CGRectMake((CGRectGetWidth(self.view.frame) - saveTemplateMessage.properties.propertyInfo.viewWidth)/2,
                                               CGRectGetHeight(self.view.frame) - saveTemplateMessage.properties.propertyInfo.viewHeight - 8,
                                               saveTemplateMessage.properties.propertyInfo.viewWidth,
                                               saveTemplateMessage.properties.propertyInfo.viewHeight)
        saveTemplateMessage.reloadData()
        saveTemplateMessage.show(inView: self.view, autoHideSeconde: 2)
        
        editSubType = .template
        resetUI()
        delegate?.kmBackgroundControllerDidUpdateMode?(self)
        
        templatesController.selectedBackground = data
        reloadData()
    }
    
    func backgroundPropertyControllerCancelTemplateEdit(_ controller: KMBackgroundPropertyController) {
        editSubType = .template
        resetUI()
        delegate?.kmBackgroundControllerDidUpdateMode?(self)
        
        templatesController.selectedBackground = controller.backgroundData
        
        reloadData()
         
    }
    
    func backgroundPropertyControllerFinishTemplateEdit(_ controller: KMBackgroundPropertyController) {
        editSubType = .template
        resetUI()
        delegate?.kmBackgroundControllerDidUpdateMode?(self)
         
        templatesController.selectedBackground = controller.backgroundData
        
        reloadData()
    }
}

//MARK: - KMBGTemplateControllerDelegate
extension KMBackgroundController: KMBGTemplateControllerDelegate {
    func templateControllerDidSelectedChanged(_ controller: KMBGTemplateController) {
        backgroundModel = controller.selectedBackground
        
        updatePDFDocumentBackground()
        
        delegate?.kmBackgroundControllerDidWatermarkUpdated?(self)
    }
    
    func templateControllerDidAddData(_ controller: KMBGTemplateController) {
        editSubType = .add
        resetUI()
        delegate?.kmBackgroundControllerDidUpdateMode?(self)
        
        propertyController.backgroundData = KMBackgroundManager.defaultManager.defaultModel
        
        backgroundModel = propertyController.backgroundData
        
        reloadData()
        
        documentPreview.layoutDocumentView()
    }
    
    func templateControllerDidEditData(_ controller: KMBGTemplateController, _ data: KMBackgroundModel) {
        editSubType = .edit
        resetUI()
        delegate?.kmBackgroundControllerDidUpdateMode?(self)
        
        propertyController.originalDataDict = KMBackgroundManager.defaultManager.parseModelToDict(model: data)
        propertyController.backgroundData = data
        propertyController.reloadData()
        
        backgroundModel = propertyController.backgroundData
        
        documentPreview.layoutDocumentView()
    }
}