//
//  KMEditPDFPopToolBarController.swift
//  PDF Reader Pro
//
//  Created by tangchao on 2024/6/18.
//

import Cocoa

@objc enum KMEditPDFToolbarItemKey: Int {
    case none
    case color
    case fontStyle
    case fontAdd
    case fontReduce
    case fontBold
    case fontItalic
    case textAlignment
    
    case leftRotate
    case rightRotate
    case reverseX // 左右翻转
    case reverseY // 上下翻转
    case crop
    case replace
    case export
    
    case alignmentLeft
    case alignmentRight
    case alignmentCenterX
    case alignmentjustifiedX // 左右两端对齐
    case alignmentTop
    case alignmentBottom
    case alignmentCenterY
    case alignmentjustifiedY // 上下两端对齐
    
    case separator // 分割线
}

class KMEditPDFToolbarModel: NSObject {
    var itemKey: KMEditPDFToolbarItemKey = .none
    var isEnabled = true
}

class KMSeparatorLineView: NSView {
    var strokeColor: NSColor = .black {
        didSet {
            self.needsDisplay = true
        }
    }
    
    override func draw(_ dirtyRect: NSRect) {
        super.draw(dirtyRect)
        
        let rect = self.bounds
        let ctx = NSGraphicsContext.current?.cgContext
        ctx?.saveGState()
        ctx?.setLineWidth(1)
        ctx?.setStrokeColor(self.strokeColor.cgColor)
        let startP = NSPoint(x: rect.size.width*0.5, y: 6+2)
        ctx?.move(to: startP)
        let endP = NSPoint(x: rect.size.width*0.5, y: rect.size.height-8)
        ctx?.addLine(to: endP)
        ctx?.strokePath()
        ctx?.restoreGState()
    }
}

struct KMEditPDFToolbarStyle: OptionSet {
    let rawValue: Int
    
    static var text  = KMEditPDFToolbarStyle(rawValue: 1 << 0)
    static var image   = KMEditPDFToolbarStyle(rawValue: 1 << 1)
}

class KMEditPDFPopToolBarController: NSViewController {
    deinit {
        KMPrint("KMEditPDFPopToolBarController deinit.")
    }
    
    convenience init() {
        self.init(nibName: "KMEditPDFPopToolBarController", bundle: nil)
    }
    
    var toolbarView: KMEditPDFToolbarView?
    var itemKeys: [KMEditPDFToolbarItemKey] = [] {
        didSet {
//            self.toolbarView?.reloadData()
        }
    }
    
    var datas: [KMEditPDFToolbarModel] = [] {
        didSet {
            self.toolbarView?.reloadData()
        }
    }
    
    var fontColor: NSColor?
    
    var itemClick: ((KMEditPDFToolbarItemKey, Any?)->Void)?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        // Do view setup here.
        
        self.interfaceThemeDidChanged(NSApp.appearance?.name ?? .aqua)

        let toolbarView = KMEditPDFToolbarView()
        self.toolbarView = toolbarView
        toolbarView.frame = self.view.bounds
        toolbarView.autoresizingMask = [.width, .height]
        self.view.addSubview(toolbarView)
        toolbarView.delegate = self
        toolbarView.inset = .init(top: 6, left: 4, bottom: 0, right: 0)
        
        toolbarView.reloadData()
    }
    
    @objc func _buttonClick(_ sender: NSButton) {
        let idx = sender.tag
        if idx >= 0 && idx < self.itemKeys.count {
            self.itemClick?(self.itemKeys[idx], nil)
        }
    }
    
    @objc func textAlignmentItemClick(_ sender: NSButton) {
        let vc = KMTextAlignmentController(nibName: "KMTextAlignmentController", bundle: nil)
        let createFilePopover: NSPopover = NSPopover.init()
        createFilePopover.contentViewController = vc
//        createFilePopover.delegate = self
        createFilePopover.animates = true
        createFilePopover.behavior = .semitransient
        createFilePopover.setValue(true, forKey: "shouldHideAnchor")
        createFilePopover.show(relativeTo: CGRect(x: sender.bounds.origin.x, y: 20, width: sender.bounds.size.width, height: sender.bounds.size.height), of: sender, preferredEdge: .maxY)
        
        vc.itemAction = { [weak self] idx, _ in
            var data: NSTextAlignment = .left
            if idx == 0 {
                data = .left
            } else if idx == 1 {
                data = .center
            } else if idx == 2 {
                data = .right
            }
            self?.itemClick?(.textAlignment, data)
            createFilePopover.close()
        }
    }
    
    @objc func colorPanelAction(_ sender: NSColorPanel) {
        let color = sender.color
        let colorView = (self.toolbarView?.itemViews.first as? KMEditPDFToolbarItemView)?.view as? KMEditPDFColorView
        colorView?.colorBtn.layer?.backgroundColor = color.cgColor
        self.itemClick?(.color, color)
    }
    
    override func interfaceThemeDidChanged(_ appearance: NSAppearance.Name) {
        super.interfaceThemeDidChanged(appearance)
        
        self.view.wantsLayer = true
        if appearance == .darkAqua {
            self.view.layer?.backgroundColor = NSColor(red: 37/255.0, green: 37/255.0, blue: 38/255.0, alpha: 1.0).cgColor
        } else {
            self.view.layer?.backgroundColor = .white
        }
        
        Task { @MainActor in
            self.toolbarView?.reloadData()
        }
    }
}

extension KMEditPDFPopToolBarController: KMEditPDFToolbarViewDelegate {
    func numberOfItems(in toolbarView: KMEditPDFToolbarView) -> Int {
        return self.datas.count
    }
    
    func toolbarView(_ toolbarView: KMEditPDFToolbarView, viewFor index: Int) -> NSView? {
        let model = self.datas[index]
        let itemKey = model.itemKey
        if itemKey == .color {
            let colorView = KMEditPDFToolbarItemView()
            let view = KMEditPDFColorView()
            view.colorBtn.layer?.backgroundColor = self.fontColor?.cgColor
            view.itemClick = { [weak self] idx, _ in
                let panel = NSColorPanel.shared
                panel.setTarget(self)
                panel.setAction(#selector(self?.colorPanelAction))
                panel.orderFront(nil)
            }
            colorView.view = view
            return colorView
        } else if itemKey == .fontStyle {
            let fontStyleView = KMEditPDFToolbarItemView()

            let viewC = KMDesignSelect.init(withType: .Combox)
            viewC.isScrollPop = true
            fontStyleView.view = viewC.view
            fontStyleView.obj = viewC
//            if KMAppearance.isDarkMode() {
//                viewC.background = NSColor(white: 0, alpha: 0.15)
//            }
            viewC.borderColor = KMAppearance.Interactive.s0Color()
            viewC.background = KMAppearance.Layout.l1Color()
            viewC.background_hov = KMAppearance.Layout.l1Color()
            viewC.background_focus = KMAppearance.Layout.l1Color()
            viewC.textColor = KMAppearance.Layout.h1Color()
            viewC.textColor_hov = KMAppearance.Layout.h1Color()
            viewC.textColor_focus = KMAppearance.Layout.h1Color()
            viewC.popViewControllerBackground = KMAppearance.Layout.bgColor()
            viewC.popViewControllerTextColor = KMAppearance.Layout.h0Color()
            viewC.popViewControllerEnterFillColor = KMAppearance.Interactive.s0Color()
            viewC.updateUI()
            
            let familyNames = CPDFFont.familyNames
            viewC.removeAllItems()
            viewC.addItems(withObjectValues: familyNames)
            viewC.selectItem(at: 0)
            viewC.delete = self
            return fontStyleView
        } else if itemKey == .separator {
            let colorView = KMEditPDFToolbarItemView()
            let view = KMSeparatorLineView()
            view.strokeColor = KMAppearance.separatorLineColor()
            colorView.view = view
            return colorView
        } else if itemKey == .textAlignment {
            let colorView = KMEditPDFToolbarItemView()
            let viewC = KMDesignButton(withType: .Image)
            colorView.view = viewC.view
            colorView.obj = viewC
            viewC.pagination()
            if KMAppearance.isDarkMode() {
                viewC.background_hov = NSColor(hex: "#365898")
            } else {
    //            viewC.background_hov = NSColor(hex: "#EDEEF0")
            }
            viewC.target = self
            viewC.action = #selector(textAlignmentItemClick)
            viewC.image = NSImage(named: "KMImageNameEditPDFAlignCenterSelect")!
            return colorView
        }
        
        let colorView = KMEditPDFToolbarItemView()
        let viewC = KMDesignButton(withType: .Image)
        colorView.view = viewC.view
        colorView.obj = viewC
        viewC.pagination()
        if KMAppearance.isDarkMode() {
            viewC.background_hov = NSColor(hex: "#365898")
        } else {
//            viewC.background_hov = NSColor(hex: "#EDEEF0")
        }
        
        viewC.tag = index
        viewC.state = model.isEnabled ? .Norm : .Disabled
        viewC.target = self
        viewC.action = #selector(_buttonClick)
        
        if itemKey == .fontAdd {
            viewC.image = NSImage(named: "KMImageNameEditPDFFontAdd")!
            colorView.popToolTip = NSLocalizedString("Larger font size", comment: "")
        } else if itemKey == .fontReduce {
            viewC.image = NSImage(named: "KMImageNameEditPDFFontReduce")!
            colorView.popToolTip = NSLocalizedString("Reduce font size", comment: "")
        } else if itemKey == .fontBold {
            viewC.image = NSImage(named: "KMImageNameEditPDFFontBold")!
            colorView.popToolTip = NSLocalizedString("Bold font", comment: "")
        } else if itemKey == .fontItalic {
            viewC.image = NSImage(named: "KMImageNameEditPDFFontItalic")!
            colorView.popToolTip = NSLocalizedString("Italic font", comment: "")
        } else if itemKey == .textAlignment {
            viewC.image = NSImage(named: "KMImageNameEditPDFAlignCenterSelect")!
            colorView.popToolTip = NSLocalizedString("Center text", comment: "")
        }
        // 图片
        else if itemKey == .leftRotate {
            viewC.image = NSImage(named: "KMImageNameEditPDFLeftRotateNew")!
            colorView.popToolTip = NSLocalizedString("Rotate left", comment: "")
        } else if itemKey == .rightRotate {
            viewC.image = NSImage(named: "KMImageNameEditPDFRightRotateNew")!
            colorView.popToolTip = NSLocalizedString("Rotate right", comment: "")
        } else if itemKey == .reverseX {
            viewC.image = NSImage(named: "KMImageNameEditPDFReverseX")!
            colorView.popToolTip = NSLocalizedString("Flip horizontal", comment: "")
        } else if itemKey == .reverseY {
            viewC.image = NSImage(named: "KMImageNameEditPDFReverseY")!
            colorView.popToolTip = NSLocalizedString("Flip vertical", comment: "")
        } else if itemKey == .crop {
            viewC.image = NSImage(named: "KMImageNameEditPDFCrop")!
            colorView.popToolTip = NSLocalizedString("Crop", comment: "")
        } else if itemKey == .replace {
            viewC.image = NSImage(named: "KMImageNameEditPDFReplace")!
            colorView.popToolTip = NSLocalizedString("Replace", comment: "")
        } else if itemKey == .export {
            viewC.image = NSImage(named: "KMImageNameEditPDFExport")!
            colorView.popToolTip = NSLocalizedString("Export file", comment: "")
        }
        // 对齐
        else if itemKey == .alignmentLeft {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage45_1")!
            colorView.popToolTip = NSLocalizedString("Align left", comment: "")
        } else if itemKey == .alignmentCenterX {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage46_1")!
            colorView.popToolTip = NSLocalizedString("Align center", comment: "")
        } else if itemKey == .alignmentRight {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage47_1")!
            colorView.popToolTip = NSLocalizedString("Align right", comment: "")
        } else if itemKey == .alignmentjustifiedX { 
            viewC.image = NSImage(named: "KMImageNameEditPDFImage21_1")!
            colorView.popToolTip = NSLocalizedString("Align both ends", comment: "")
        } else if itemKey == .alignmentTop {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage48_1")!
            colorView.popToolTip = NSLocalizedString("Align top", comment: "")
        } else if itemKey == .alignmentCenterY {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage49_1")!
            colorView.popToolTip = NSLocalizedString("Align center in vertical", comment: "")
        } else if itemKey == .alignmentBottom {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage50_1")!
            colorView.popToolTip = NSLocalizedString("Align bottom", comment: "")
        } else if itemKey == .alignmentjustifiedY {
            viewC.image = NSImage(named: "KMImageNameEditPDFImage20_1")!
            colorView.popToolTip = NSLocalizedString("Align ends in vertical", comment: "")
        }
        return colorView
    }
    
    func toolbarView(_ toolbarView: KMEditPDFToolbarView, sizeForItemAt index: Int) -> NSSize {
        let itemKey = self.itemKeys[index]
        if itemKey == .color {
            return NSMakeSize(56, 32)
        } else if itemKey == .fontStyle {
            return NSMakeSize(148, 32)
        } else if itemKey == .separator {
            return NSMakeSize(16, 32)
        }
        return NSMakeSize(32, 32)
    }
}

extension KMEditPDFPopToolBarController: KMSelectPopButtonDelegate {
    func km_comboBoxSelectionDidChange(_ obj: KMDesignSelect) {
        self.itemClick?(.fontStyle, obj.stringValue)
    }
    
    func km_controlTextDidEndEditing(_ obj: KMDesignSelect) {
        
    }
}