//
//  KMCropPropertyController.swift
//  PDF Reader Pro
//
//  Created by Niehaoyu on 2024/11/20.
//

import Cocoa
import KMComponentLibrary

@objc protocol KMCropPropertyControllerDelegate: AnyObject {
    
    @objc optional func kmCropControllerDidCrop(_ controller: KMCropPropertyController, _ cropRect: CGRect, _ view: KMPageRangeSelectView)
    
    @objc optional func kmCropControllerDidCropSeparate(_ controller: KMCropPropertyController, _ view: KMPageRangeSelectView)
    
    @objc optional func kmCropControllerDidCropAuto(_ controller: KMCropPropertyController, _ view: KMPageRangeSelectView)
}

class KMCropPropertyController: NSViewController {
    
    @IBOutlet var contendView: NSView!
    
    //White Margin
    @IBOutlet var whiteMarginBGView: NSView!
    @IBOutlet var whiteMarginLabel: NSTextField!
    @IBOutlet var separateLabel: NSTextField!
    @IBOutlet var separateTip: ComponentToolTipsHelp!
    @IBOutlet var separateSwitch: ComponentSwitch!
    
    @IBOutlet var autoLabel: NSTextField!
    @IBOutlet var autoTipsView: ComponentToolTipsHelp!
    @IBOutlet var autoSwitch: ComponentSwitch!
    
    //PageSize
    @IBOutlet var pageSizeBGView: NSView!
    @IBOutlet var pageSizeLabel: NSTextField!
    @IBOutlet var sizeSyncButton: ComponentButton!
    @IBOutlet var sizeWidthInput: ComponentInputNumber!
    @IBOutlet var sizeHeightInput: ComponentInputNumber!
    
    //PageMargin
    @IBOutlet var pageMarginBGView: NSView!
    @IBOutlet var pageMarginLabel: NSTextField!
    @IBOutlet var pageLeftInput: ComponentInputNumber!
    @IBOutlet var pageTopInput: ComponentInputNumber!
    @IBOutlet var pageRightInput: ComponentInputNumber!
    @IBOutlet var pageBottomInput: ComponentInputNumber!
    
    //PageRange
    @IBOutlet var pageRangeBGView: NSView!
    @IBOutlet var pageRangeLabel: NSTextField!
    @IBOutlet var pangeRangeSelectView: KMPageRangeSelectView!
    
    @IBOutlet var cropButton: ComponentButton!
    
    private var _cropSeparateOn: Bool = false
    private var _cropAutoOn: Bool = false
    private var _syncChangeBounds: Bool = false //同步修改宽高
    
    weak open var delegate: KMCropPropertyControllerDelegate?
    
    public var pdfView: CPDFListView?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        
        cropSeparateOn = UserDefaults.standard.bool(forKey: "CropSeparateOnKey")
        cropAutoOn = UserDefaults.standard.bool(forKey: "CropAutoOnKey")
        if UserDefaults.standard.object(forKey: "CropSyncChangeBoundsKey") == nil {
            UserDefaults.standard.setValue(true, forKey: "CropSyncChangeBoundsKey")
        }
        syncChangeBounds = UserDefaults.standard.bool(forKey: "CropSyncChangeBoundsKey")
        
        setupProperty()
        
        reloadData()
    }
    
    //MARK: - Setter and Getter
    public var cropSeparateOn : Bool {
        get {
            return _cropSeparateOn
        }
        set {
            _cropSeparateOn = newValue
          
            UserDefaults.standard.setValue(_cropSeparateOn, forKey: "CropSeparateOnKey")
         }
    }
    
    public var cropAutoOn : Bool {
        get {
            return _cropAutoOn
        }
        set {
            _cropAutoOn = newValue
          
            UserDefaults.standard.setValue(_cropAutoOn, forKey: "CropAutoOnKey")
         }
    }
    
    public var syncChangeBounds : Bool {
        get {
            return _syncChangeBounds
        }
        set {
            _syncChangeBounds = newValue
          
            UserDefaults.standard.setValue(_syncChangeBounds, forKey: "CropSyncChangeBoundsKey")
         }
    }
    
    func setupProperty() {
        //White Margin
        whiteMarginLabel.stringValue = KMLocalizedString("Crop White Margins")
        whiteMarginLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        whiteMarginLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        separateLabel.stringValue = KMLocalizedString("Separate")
        separateLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("comp-form/colorText-label")
        separateLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-regular")
        
        separateSwitch.properties = ComponentSwitchProperty(size: .s, open: false, isDisabled: false)
        separateSwitch.setTarget(self, action: #selector(switchAction(_:)))
        
        autoLabel.stringValue = KMLocalizedString("Auto")
        autoLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("comp-form/colorText-label")
        autoLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-m-regular")
        
        separateTip.toolTip = KMLocalizedString("separateTip tooltips")
        
        autoTipsView.toolTip = KMLocalizedString("autoTipsView tooltips")
        
        autoSwitch.properties = ComponentSwitchProperty(size: .s, open: false, isDisabled: false)
        autoSwitch.setTarget(self, action: #selector(switchAction(_:)))
        
        //PageSize
        whiteMarginLabel.stringValue = KMLocalizedString("Crop Page Size")
        whiteMarginLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        whiteMarginLabel.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"),
                                                                 minSize: 0,
                                                                 maxSize: 1000,
                                                                 text:"100")
        sizeWidthInput.delegate = self
        
        sizeHeightInput.properties = ComponentInputNumberProperty(alignment: .center,
                                                                  size: .s,
                                                                  state: .normal,
                                                                  showPrefix: true,
                                                                  leftIcon: NSImage(named: "h_icon"),
                                                                  minSize: 0,
                                                                  maxSize: 1000,
                                                                  text:"100")
        sizeHeightInput.delegate = self
        
        //PageMargin
        whiteMarginLabel.stringValue = KMLocalizedString("Crop Page Margins")
        whiteMarginLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        whiteMarginLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        pageLeftInput.properties = ComponentInputNumberProperty(size: .s,
                                                                state: .normal,
                                                                minSize: 0,
                                                                maxSize: 1000,
                                                                text:"0")
        
        pageTopInput.properties = ComponentInputNumberProperty(size: .s,
                                                               state: .normal,
                                                               minSize: 0,
                                                               maxSize: 1000,
                                                               text:"0")
        
        pageRightInput.properties = ComponentInputNumberProperty(size: .s,
                                                                 state: .normal,
                                                                 minSize: 0,
                                                                 maxSize: 1000,
                                                                 text:"0")
        
        pageBottomInput.properties = ComponentInputNumberProperty(size: .s,
                                                                  state: .normal,
                                                                  minSize: 0,
                                                                  maxSize: 1000,
                                                                  text:"0")
        
        pageLeftInput.delegate = self
        pageTopInput.delegate = self
        pageRightInput.delegate = self
        pageBottomInput.delegate = self
        
        //PageRange
        pageRangeLabel.stringValue = KMLocalizedString("Page Range")
        pageRangeLabel.textColor = ComponentLibrary.shared.getComponentColorFromKey("colorText/2")
        pageRangeLabel.font = ComponentLibrary.shared.getFontFromKey("mac/body-s-medium")
        
        cropButton.properties = ComponentButtonProperty(type: .primary, size: .m, buttonText: KMLocalizedString("Apply"), keepPressState: false)
        cropButton.setTarget(self, action: #selector(cropButtonClicked(_:)))
    }
    
    func reloadData() {
        guard let pdfView = self.pdfView else {
            return
        }
        
        guard let page = pdfView.currentSelectionPage() else {
            return
        }
        let pageBounds = page.bounds
        let selectionRect = pdfView.selectionRect
        
        //White Margin
        separateSwitch.properties.open = cropSeparateOn
        separateSwitch.reloadData()
        
        autoSwitch.properties.open = cropAutoOn
        autoSwitch.reloadData()
        
        //PageSize
        sizeWidthInput.properties.maxSize = Int(pageBounds.size.width)
        sizeWidthInput.properties.text = String(format: "%.0f", selectionRect.size.width)
        sizeWidthInput.reloadData()
        
        sizeHeightInput.properties.maxSize = Int(pageBounds.size.height)
        sizeHeightInput.properties.text = String(format: "%.0f", selectionRect.size.height)
        sizeHeightInput.reloadData()
        
        if syncChangeBounds {
            sizeSyncButton.properties.state = .pressed
        } else {
            sizeSyncButton.properties.state = .normal
        }
        sizeSyncButton.reloadData()
        //PageMargin
        
        pageLeftInput.properties.maxSize = Int(pageBounds.size.width)
        pageLeftInput.properties.text = String(format: "%.0f", selectionRect.origin.x)
        pageLeftInput.reloadData()
        
        pageRightInput.properties.maxSize = Int(pageBounds.size.width)
        pageRightInput.properties.text = String(format: "%.0f", pageBounds.size.width - CGRectGetMaxX(selectionRect))
        pageRightInput.reloadData()
        
        pageTopInput.properties.maxSize = Int(pageBounds.size.height)
        pageTopInput.properties.text = String(format: "%.0f", pageBounds.size.height - CGRectGetMaxY(selectionRect))
        pageTopInput.reloadData()
         
        pageBottomInput.properties.maxSize = Int(pageBounds.size.height)
        pageBottomInput.properties.text = String(format: "%.0f", selectionRect.origin.y)
        pageBottomInput.reloadData()
        
        //PageRange
        if CGRectEqualToRect(pageBounds, selectionRect) {
            cropButton.properties.isDisabled = true
        } else {
            cropButton.properties.isDisabled = false
        }
        cropButton.reloadData()
    }
    
    //MARK: - Action
    @objc func sizeSyncButtonClicked(_ sender: ComponentButton) {
        syncChangeBounds = !syncChangeBounds
        
        reloadData()
    }
    
    @objc func cropButtonClicked(_ sender: ComponentButton) {
        if cropSeparateOn {
            delegate?.kmCropControllerDidCropSeparate?(self, pangeRangeSelectView)
        } else if cropAutoOn {
            delegate?.kmCropControllerDidCropAuto?(self, pangeRangeSelectView)
        } else {
            delegate?.kmCropControllerDidCrop?(self, pdfView?.selectionRect ?? CGRectZero, pangeRangeSelectView)
        }
    }
    
    @objc func switchAction(_ sender: ComponentSwitch) {
        guard let pdfView = self.pdfView else {
            return
        }
        
        guard let page = pdfView.document.page(at: 0) else {
            return
        }
        
        if sender == separateSwitch {
            cropSeparateOn = sender.properties.open
            cropAutoOn = false
            
            let rect = KMCropTools.getPageForegroundBox(page)
            pdfView.selectionRect = rect
            pdfView.setNeedsDisplayForVisiblePages()
            
        } else if sender == autoSwitch {
            cropAutoOn = sender.properties.open
            cropSeparateOn = false
            
            let rect = KMCropTools.getPageForegroundBox(page)
            pdfView.selectionRect = rect
            pdfView.setNeedsDisplayForVisiblePages()
            
        }
        reloadData()
    }
    
    
}

//MARK: - ComponentInputNumberDelegate
extension KMCropPropertyController: ComponentInputNumberDelegate {
    func componentInputNumberDidValueChanged(inputNumber: ComponentInputNumber?) {
        guard let pdfView = self.pdfView else {
            return
        }
        
        guard let page = pdfView.currentSelectionPage() else {
            return
        }
        let pageBounds = page.bounds
        
        var value: CGFloat = 0
        if let text = inputNumber?.properties.text {
            value = text.stringToCGFloat()
        }
  
        var rect = pdfView.selectionRect
        if inputNumber == sizeWidthInput {
            if syncChangeBounds {
                var scale: CGFloat = 0
                if rect.size.width != 0 {
                    scale = value / rect.size.width
                }
                rect.size.height *= scale
            }
            rect.size.width = value
        } else if inputNumber == sizeHeightInput {
            if syncChangeBounds {
                var scale: CGFloat = 0
                if rect.size.height != 0 {
                    scale = value / rect.size.height
                }
                rect.size.width *= scale
             }
            rect.size.height = value
        } else if inputNumber == pageLeftInput {
            rect.origin.x = value
        } else if inputNumber == pageRightInput {
            rect.size.width = pageBounds.size.width - rect.origin.x - value
        } else if inputNumber == pageTopInput {
            rect.size.height = pageBounds.size.height - rect.origin.y - value
        } else if inputNumber == pageBottomInput {
            rect.origin.y = value
        }
        pdfView.selectionRect = rect
        pdfView.setNeedsDisplayForVisiblePages()
        
        cropAutoOn = false
        cropSeparateOn = false

        reloadData()
    }
}