//
//  KMEditImageController.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/11/14.
//

import Cocoa
import KMComponentLibrary

class KMEditImageController: NSViewController {
    
    @IBOutlet var scrollView: NSScrollView!
    @IBOutlet var contendView: NSView!
    
    @IBOutlet var sizeBGView: NSView!
    @IBOutlet var sizeLabel: NSTextField!
    @IBOutlet var sizeSyncButton: ComponentButton!
    @IBOutlet var sizeWidthInput: ComponentInputNumber!
    @IBOutlet var sizeHeightInput: ComponentInputNumber!
    
    
    @IBOutlet var rotateBGView: NSView!
    @IBOutlet var rotateLabel: NSTextField!
    @IBOutlet var rotateSelect: ComponentSelect!
    @IBOutlet var rotateLeftButton: ComponentButton!
    @IBOutlet var rotateRightButton: ComponentButton!
    @IBOutlet var flipVerticalButton: ComponentButton!
    @IBOutlet var flipHorizontalButton: ComponentButton!
    
    @IBOutlet var opacityBGView: NSView!
    @IBOutlet var opacityLabel: NSTextField!
    @IBOutlet var opacitySlider: ComponentSlider!
    @IBOutlet var opacitySelect: ComponentSelect!
    
    @IBOutlet var cropButton: ComponentButton!
    @IBOutlet var replaceButton: ComponentButton!
    @IBOutlet var ExtrackButton: ComponentButton!
    
    private var syncChangeBounds: Bool = true //同步修改宽高
    
    private var groupView: ComponentGroup!
    
    var pdfView: CPDFListView? {
        didSet {
            reloadData()
        }
    }
    
    var currentArea: CPDFEditImageArea?
    
    //MARK: - func
    override func viewDidAppear() {
        super.viewDidAppear()
        
        opacitySlider.reloadData()
        
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        setupProperty()
    }
    
    func setupProperty() {
        
        //Size
        sizeLabel.stringValue = KMLocalizedString("Size")
        sizeLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        sizeLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        sizeSyncButton.properties = ComponentButtonProperty(type: .text_gray, size: .xxs, onlyIcon: true, icon: NSImage(named: "sync_Change_unlock"), keepPressState: true)
        sizeSyncButton.properties.propertyInfo.leftIcon_press = NSImage(named: "sync_Change_lock")
        sizeSyncButton.setTarget(self, action: #selector(sizeSyncButtonClicked(_:)))
        sizeSyncButton.reloadData()
        
        sizeWidthInput.properties = ComponentInputNumberProperty(alignment: .center,
                                                                 size: .s,
                                                                 state: .normal,
                                                                 showPrefix: true,
                                                                 leftIcon: NSImage(named: "w_icon"),
                                                                 showSuffix: false,
                                                                 minSize: 1,
                                                                 maxSize: 1000,
                                                                 text:"100")
        sizeWidthInput.delegate = self
        
        sizeHeightInput.properties = ComponentInputNumberProperty(alignment: .center,
                                                                  size: .s,
                                                                  state: .normal,
                                                                  showPrefix: true,
                                                                  leftIcon: NSImage(named: "h_icon"),
                                                                  showSuffix: false,
                                                                  minSize: 1,
                                                                  maxSize: 1000,
                                                                  text:"100")
        sizeHeightInput.delegate = self
        
        //Rotate
        rotateLabel.stringValue = KMLocalizedString("Rotate & Flip")
        rotateLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        rotateLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        rotateSelect.properties = ComponentSelectProperties(size: .s,
                                                            state: .normal,
                                                            creatable: true,
                                                            text: "100",
                                                            textUnit: "°",
                                                            regexString: "0123456789-")
        if true {
            var opacityItems: [ComponentMenuitemProperty] = []
            for string in ["0°", "45°", "-45°", "90°", "-90°"] {
                let item = ComponentMenuitemProperty(type: .normal, text: string)
                opacityItems.append(item)
            }
            rotateSelect.updateMenuItemsArr(opacityItems)
        }
        rotateSelect.delegate = self
        
        rotateLeftButton.properties = ComponentButtonProperty(type: .text_gray, size: .s, onlyIcon: true, icon: NSImage(named: "pageEdit_rotateLeft"), keepPressState: false)
        rotateLeftButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        rotateRightButton.properties = ComponentButtonProperty(type: .text_gray, size: .s, onlyIcon: true, icon: NSImage(named: "pageEdit_rotateRight"), keepPressState: false)
        rotateRightButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        flipVerticalButton.properties = ComponentButtonProperty(type: .text_gray, size: .s, onlyIcon: true, icon: NSImage(named: "flipVertical"), keepPressState: false)
        flipVerticalButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        flipHorizontalButton.properties = ComponentButtonProperty(type: .text_gray, size: .s, onlyIcon: true, icon: NSImage(named: "flipHorizontal"), keepPressState: false)
        flipHorizontalButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        //Opacity
        opacityLabel.stringValue = KMLocalizedString("Opacity")
        opacityLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        opacityLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        opacitySlider.properties = ComponentSliderProperty(size: .m, percent: 1)
        opacitySlider.delegate = self
        
        opacitySelect.properties = ComponentSelectProperties(size: .s,
                                                             state: .normal,
                                                             creatable: true,
                                                             text: "100",
                                                             textUnit: "%",
                                                             regexString: "0123456789%")
        if true {
            var opacityItems: [ComponentMenuitemProperty] = []
            for string in ["25%", "50%", "75%", "100%"] {
                let item = ComponentMenuitemProperty(type: .normal, text: string)
                opacityItems.append(item)
            }
            opacitySelect.updateMenuItemsArr(opacityItems)
        }
        opacitySelect.delegate = self
        
        cropButton.properties = ComponentButtonProperty(type: .default_tertiary, size: .s, buttonText: KMLocalizedString("Crop"), keepPressState: false)
        cropButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        replaceButton.properties = ComponentButtonProperty(type: .default_tertiary, size: .s, buttonText: KMLocalizedString("Replace"), keepPressState: false)
        replaceButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        ExtrackButton.properties = ComponentButtonProperty(type: .default_tertiary, size: .s, buttonText: KMLocalizedString("Extract"), keepPressState: false)
        ExtrackButton.setTarget(self, action: #selector(buttonClicked(_:)))
        
        
    }
    
    func reloadData() {
        
        let areas = pdfView?.km_editingImageAreas() ?? []
        if areas.count == 0 {
            currentArea = nil
        } else if areas.count == 1 {
            currentArea = areas.first
        } else if areas.count == 2 {
            currentArea = nil
        }
        
        if let area = currentArea {
            //Size
            if syncChangeBounds {
                sizeSyncButton.properties.state = .pressed
            } else {
                sizeSyncButton.properties.state = .normal
            }
            sizeSyncButton.reloadData()
            
            let areaFrame = area.bounds
            sizeWidthInput.properties.text = String(format: "%.1f", areaFrame.size.width)
            sizeWidthInput.reloadData()
            
            sizeHeightInput.properties.text = String(format: "%.1f", areaFrame.size.height)
            sizeHeightInput.reloadData()
            
            //Rotate
            if let rotates = pdfView?.km_editAreasRotates([area]) {
                if rotates.count > 0 {
                    var rotate = rotates.first ?? 1
                    
                    rotateSelect.properties.text = String(format: "%.0f%@", rotate, "°")
                    rotateSelect.reloadData()
                    
                }
            }
            
            //Opacity
            if let opacitys = pdfView?.km_editAreasOpacitys([area]) {
                if opacitys.count > 0 {
                    var opacity = opacitys.first ?? 1
                    opacity = min(1, opacity)
                    opacity = max(0, opacity)
                    
                    opacitySelect.properties.text = String(format: "%.0f%@", opacity*100, "%")
                    opacitySelect.reloadData()
                    
                    opacitySlider.properties.percent = opacity
                    opacitySlider.reloadData()
                }
            }
            
            
            if pdfView?.isEditImage == true {
                cropButton.properties.buttonText = KMLocalizedString("Cancel Crop")
            } else {
                cropButton.properties.buttonText = KMLocalizedString("Crop")
            }
            cropButton.reloadData()
            
        }
        
        
    }
    
    //MARK: - Action
    @objc func sizeSyncButtonClicked(_ sender: ComponentButton) {
        syncChangeBounds = !syncChangeBounds
        
        if syncChangeBounds {
            sizeSyncButton.properties.state = .pressed
        } else {
            sizeSyncButton.properties.state = .normal
        }
        sizeSyncButton.reloadData()
    }
    
    @objc func buttonClicked(_ sender: ComponentButton) {
        if sender == rotateLeftButton {
            self.pdfView?.leftRotateAction()
        } else if sender == rotateRightButton {
            self.pdfView?.rightRotateAction()
        } else if sender == flipVerticalButton {
            self.pdfView?.reverseYAction()
        } else if sender == flipHorizontalButton {
            self.pdfView?.reverseXAction()
        } else if sender == cropButton {
            if pdfView?.isEditImage == true {
                pdfView?.cropCancelAction()
            } else {
                pdfView?.cropAction()
            }
            
        } else if sender == replaceButton {
            if let areas = self.pdfView?.km_editingImageAreas() {
                let panel = NSOpenPanel()
                panel.allowsMultipleSelection = false
                panel.allowedFileTypes = ["png","jpg"]
                panel.beginSheetModal(for: NSApp.mainWindow!) { response in
                    if response == .OK {
                        let openPath = panel.url?.path
                        for area in areas {
                            self.pdfView?.replace(area, imagePath: openPath!)
                        }
                    }
                }
            }
        } else if sender == ExtrackButton {
            extractAction()
        }
        
        reloadData()
    }
    
    func extractAction() {
        var menuItemArr: [ComponentMenuitemProperty] = []
        let items: [(String, String)] = [("jpg", "export_jpg_Key"),
                                         ("png", "export_png_Key"),
                                         ("pdf", "export_pdf_Key")]
        
        for (i, value) in items {
            let properties_Menuitem: ComponentMenuitemProperty = ComponentMenuitemProperty(multipleSelect: false,
                                                                                           itemSelected: false,
                                                                                           isDisabled: false,
                                                                                           keyEquivalent: nil,
                                                                                           text: KMLocalizedString(i),
                                                                                           identifier: value)
            menuItemArr.append(properties_Menuitem)
        }
        
        if groupView == nil {
            groupView = ComponentGroup.createFromNib(in: ComponentLibrary.shared.componentBundle())
        }
        groupView.groupDelegate = self
        groupView?.frame = CGRectMake(0, 0, ExtrackButton.frame.size.width, 36*3+8)
        groupView.updateGroupInfo(menuItemArr)
        if let point: CGPoint = ExtrackButton.superview?.convert(ExtrackButton.frame.origin, to: self.view.window?.contentView) {
            groupView.showWithPoint(CGPoint(x: point.x, y: point.y - CGRectGetHeight(groupView.frame)-4), relativeTo: self.view)
        }
    }
    
    //MARK: - MouseEvent
    override func mouseDown(with event: NSEvent) {
        super.mouseDown(with: event)
        
        view.window?.makeFirstResponder(nil)
    }
    
}

extension KMEditImageController: ComponentInputNumberDelegate {
    func componentInputNumberDidValueChanged(inputNumber: ComponentInputNumber?) {
        if inputNumber == sizeWidthInput {
            let areas = self.pdfView?.km_editingImageAreas() ?? []
            self.pdfView?.editAreaBoundUpdating = true
            for area in areas {
                var bounds = area.bounds
                var width = inputNumber?.properties.text?.stringToCGFloat() ?? 0
                if width == 0 {
                    return
                }
                let pageBounds = area.page?.bounds ?? .zero
                if width > NSWidth(pageBounds) {
                    width = NSWidth(pageBounds)
                    let value = String(format: "%.1f", width)
                }
                let wOffset = width-bounds.size.width
                bounds.origin.x = max(0, bounds.origin.x-wOffset * 0.5)
                bounds.origin.x = min(bounds.origin.x, pageBounds.size.width-width)
                
                if syncChangeBounds {
                    var scale: CGFloat = 0
                    if bounds.size.width != 0 {
                        scale = width / bounds.size.width
                    }
                    bounds.size.height *= scale
                    bounds.size.width = width
                } else {
                    bounds.size.width = width
                }
                self.pdfView?.setBoundsEditArea(area, withBounds: bounds)
            }
        } else if inputNumber == sizeHeightInput {
            let areas = self.pdfView?.km_editingImageAreas() ?? []
            self.pdfView?.editAreaBoundUpdating = true
            for area in areas {
                var bounds = area.bounds
                var height = inputNumber?.properties.text?.stringToCGFloat() ?? 0
                if height == 0 {
                    return
                }
                let pageBounds = area.page?.bounds ?? .zero
                if height > NSHeight(pageBounds) {
                    height = NSHeight(pageBounds)
                }
                let hOffset = height-bounds.size.height
                bounds.origin.y = max(0, bounds.origin.y-hOffset * 0.5)
                bounds.origin.y = min(bounds.origin.y, pageBounds.size.height-height)
                if syncChangeBounds { // 寛高约束
                    var scale: CGFloat = 0
                    if bounds.size.height != 0 {
                        scale = height / bounds.size.height
                    }
                    bounds.size.width *= scale
                    bounds.size.height = height
                } else {
                    bounds.size.height = height
                }
                self.pdfView?.setBoundsEditArea(area, withBounds: bounds)
            }
        }
        reloadData()
    }
}

//MARK: - ComponentSelectDelegate
extension KMEditImageController: ComponentSelectDelegate {
    func componentSelectDidSelect(view: ComponentSelect?, menuItemProperty: ComponentMenuitemProperty?) {
        if view == opacitySelect {
            if let text = opacitySelect.properties.text {
                let result = text.stringByDeleteCharString("%")
                let opacity = result.stringToCGFloat()/100
                
                pdfView?.setEditingAreasOpacity(opacity)
                
                reloadData()
            }
        } else if view == rotateSelect {
            if let text = rotateSelect.properties.text {
                let result = text.stringByDeleteCharString("°")
                let value = result.stringToCGFloat()
                
                pdfView?.rotateEditingAreas(value)
                
                reloadData()
            }
        }
    }
    
    func componentSelectTextDidEndEditing(_ view: ComponentSelect) {
        if view == opacitySelect {
            if let text = opacitySelect.properties.text {
                let result = text.stringByDeleteCharString("%")
                let opacity = result.stringToCGFloat()/100
                
                pdfView?.setEditingAreasOpacity(opacity)
                
                reloadData()
            }
        } else if view == rotateSelect {
            if let text = rotateSelect.properties.text {
                let result = text.stringByDeleteCharString("°")
                let value = result.stringToCGFloat()
                
                pdfView?.rotateEditingAreas(value)
                
                reloadData()
            }
        }
    }
}

//MARK: - ComponentCColorDelegate
extension KMEditImageController: ComponentCColorDelegate {
    
}

//MARK: - ComponentSliderDelegate
extension KMEditImageController: ComponentSliderDelegate {
    func componentSliderDidUpdate(_ view: ComponentSlider) {
        let percent = view.properties.percent
        
        self.pdfView?.setEditingAreasOpacity(percent)
        
        reloadData()
        
    }
}


//MARK: - ComponentGroupDelegate
extension KMEditImageController: ComponentGroupDelegate {
    func componentGroupDidSelect(group: ComponentGroup?, menuItemProperty: ComponentMenuitemProperty?) {
        if menuItemProperty?.identifier == "export_jpg_Key" {
            pdfView?.exportEditingImageAreasAction(format: "jpg")
        } else if menuItemProperty?.identifier == "export_png_Key" {
            pdfView?.exportEditingImageAreasAction(format: "png")
        } else if menuItemProperty?.identifier == "export_pdf_Key" {
            pdfView?.exportEditingImageAreasAction(format: "pdf")
        }
        
    }
    
}