import Foundation

let kHeaderFooterFolderPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(Bundle.main.bundleIdentifier!).stringByAppendingPathComponent("headerFooter")

let kHeaderFooterPlistPath = NSSearchPathForDirectoriesInDomains(FileManager.SearchPathDirectory.applicationSupportDirectory, FileManager.SearchPathDomainMask.userDomainMask, true).last?.stringByAppendingPathComponent(Bundle.main.bundleIdentifier!).stringByAppendingPathComponent("headerFooter").stringByAppendingPathComponent("headerFooter2025.plist")

class KMHeaderFooterManager: NSObject {
    
    static let defaultManager = KMHeaderFooterManager()
    
    var headFooterObjects: [KMHeaderFooterModel] = []
    var defaultHeaderFooter: KMHeaderFooterModel = KMHeaderFooterModel()
    
    override init() {
        super.init()
#if DEBUG
        print("kHeaderFooterPlistPath = \(kHeaderFooterPlistPath ?? "")")
#endif
        if (FileManager.default.fileExists(atPath: kHeaderFooterPlistPath!)) {
            let dataDict = NSDictionary(contentsOfFile: kHeaderFooterPlistPath!)
            if (dataDict == nil) {
                return
            }
            for keyIndex in 0 ..< (dataDict?.allKeys.count)! {
                let key: String = dataDict?.allKeys[keyIndex] as! String
                let backgroundDict: NSDictionary = dataDict?.object(forKey: key) as! NSDictionary
                
                let model = parseDictionary(dict: backgroundDict)
                model.tag = key
                
                self.headFooterObjects.append(model)
                
                self.defaultHeaderFooter.name = self.fetchHeaderFooterAvailableName()
            }
        }
    }
    
    //MARK: - 增删改查
    func addHeaderFooter(_ obj: KMHeaderFooterModel) -> Bool {
        if (!FileManager.default.fileExists(atPath: kHeaderFooterFolderPath!)) {
            let create: ()? = try?FileManager.default.createDirectory(atPath: kHeaderFooterFolderPath!, withIntermediateDirectories: false)
            if (create == nil) {
                return false
            }
        }
        
        if (!FileManager.default.fileExists(atPath: kHeaderFooterPlistPath!)) {
            let create = try?FileManager.default.createFile(atPath: kHeaderFooterPlistPath!, contents: nil)
            if (create == nil) {
                return false
            }
        }
        
        let dict = NSDictionary(contentsOfFile: kHeaderFooterPlistPath!)
        var newDict:NSMutableDictionary!
        if (dict != nil) {
            newDict = NSMutableDictionary(dictionary: dict!)
        } else {
            newDict = NSMutableDictionary()
        }
        
        let backgroundDict = self.parseModel(model: obj)
        if (backgroundDict.isEmpty) {
            let alert = NSAlert()
            alert.alertStyle = .critical
            //            alert.messageText = NSLocalizedString("文件\(obj.imagePath?.lastPathComponent)已损坏", comment: "")
            alert.runModal()
            return false
        }
        
        let tag = obj.tag
        newDict.addEntries(from: [tag : backgroundDict])
        
        let result = newDict.write(toFile: kHeaderFooterPlistPath!, atomically: true)
        if (result) {
            if (self.headFooterObjects.count < 1) {
                self.headFooterObjects.append(obj)
            } else {
                self.headFooterObjects.insert(obj, at: 0)
            }
        }
        return result
    }
    
    func removeHeaderFooter(_ obj: KMHeaderFooterModel) -> Bool {
        if (obj.tag.isEmpty) {
            return false
        }
        if (!FileManager.default.fileExists(atPath: kHeaderFooterPlistPath!)) {
            return false
        }
        
        let key: String = obj.tag
        
        let dictionary = NSDictionary(contentsOfFile: kHeaderFooterPlistPath!)
        var newDictionary: NSMutableDictionary!
        if (dictionary != nil) {
            newDictionary = NSMutableDictionary(dictionary: dictionary!)
        } else {
            newDictionary = NSMutableDictionary()
        }
        newDictionary.removeObject(forKey: key)
        
        let result = newDictionary.write(toFile: kHeaderFooterPlistPath!, atomically: true)
        if (result) {
            if (self.headFooterObjects.contains(obj)) {
                self.headFooterObjects.removeObject(obj)
            }
        }
        return result
    }
    
    func updateHeaderFooter(theModel: KMHeaderFooterModel) -> Bool {
        var flagModel: KMHeaderFooterModel!
        for model in self.headFooterObjects {
            if (model.tag == theModel.tag) {
                flagModel = model
                break
            }
        }
        
        if (flagModel == nil) {
            return false
        }
        
        let dict = NSDictionary(contentsOfFile: kHeaderFooterPlistPath!)
        var newDict:NSMutableDictionary!
        if (dict != nil) {
            newDict = NSMutableDictionary(dictionary: dict!)
        } else {
            newDict = NSMutableDictionary()
        }
        
        let watermarkDict = self.parseModel(model: theModel)
  
        newDict.setObject(watermarkDict, forKey: flagModel.tag as NSCopying)
        let result = newDict.write(toFile: kHeaderFooterPlistPath!, atomically: true)
        if (result) {
            if let index = self.headFooterObjects.firstIndex(of: flagModel) {
                self.headFooterObjects[index] = theModel
            }
        }
        return result
    }
    
    func updateModel(_ model: KMHeaderFooterModel, with dict: NSDictionary) {
        model.fontName = dict.object(forKey: "fontName") as! String
        model.fontsize = dict.object(forKey: "fontsize") as! CGFloat
        
        if let value = dict.object(forKey: "color") {
            model.color = NSColor.km_init(hex: value as! String)
        }
        
        model.leftMargin = dict.object(forKey: "leftMargin") as! Int
        model.rightMargin = dict.object(forKey: "rightMargin") as! Int
        model.bottomMargin = dict.object(forKey: "bottomMargin") as! Int
        model.topMargin = dict.object(forKey: "topMargin") as! Int
        
        model.topLeftString = dict.object(forKey: "topLeftString") as! String
        model.topCenterString = dict.object(forKey: "topCenterString") as! String
        model.topRightString = dict.object(forKey: "topRightString") as! String
        model.bottomLeftString = dict.object(forKey: "bottomLeftString") as! String
        model.bottomCenterString = dict.object(forKey: "bottomCenterString") as! String
        model.bottomRightString = dict.object(forKey: "bottomRightString") as! String
        
        model.dateFormatString = dict.object(forKey: "dateFormatString") as! String
        model.pageFormatString = dict.object(forKey: "pageFormatString") as! String
        model.startString = dict.object(forKey: "startString") as! String
        model.name = dict.object(forKey: "name") as! String
        
        if let value = dict.object(forKey: "tag") {
            model.tag = value as! String
        }
    }
    
    func updateCPDFHeaderFooter(_ headerFooter: CPDFHeaderFooter, withModel model: KMHeaderFooterModel, _ totalPDFCount: Int) {
        
        let fontSize = model.fontsize
        let fontName: String = model.fontName
        
        let font = NSFont.boldSystemFont(ofSize:fontSize)
        let style = NSMutableParagraphStyle()
        style.alignment = .center
        style.lineBreakMode = .byCharWrapping
        let size: NSSize = "text".boundingRect(with: NSSize(width: 1000, height: 1000), options: NSString.DrawingOptions(rawValue: 3), attributes: [NSAttributedString.Key.font : font, NSAttributedString.Key.paragraphStyle : style]).size
        
        headerFooter.margin = NSEdgeInsetsMake(max(CGFloat(model.topMargin)-size.height, 0), CGFloat(model.leftMargin), max(CGFloat(model.bottomMargin)-size.height, 0), CGFloat(model.rightMargin))
        
        let strings = KMHeaderFooterModel.parseModel(model: model, pageCount: totalPDFCount)
        var count: Int = 0
        let color = model.color
        
        for text in strings {
            headerFooter.setText(text, at: UInt(count))
            headerFooter.setTextColor(color, at: UInt(count))
            headerFooter.setFontSize(fontSize, at: UInt(count))
            headerFooter.setFontName(fontName, at: UInt(count))
            count += 1
        }
    }
    
    //MARK: - Parse
    func parseModel(model: KMHeaderFooterModel) -> Dictionary<String, Any> {
        var dict: [String : Any] = [:]
        
        dict["fontName"] = model.fontName
        dict["fontsize"] = model.fontsize
        dict["color"] = model.color.toHex()
        
        dict["leftMargin"] = model.leftMargin
        dict["rightMargin"] = model.rightMargin
        dict["bottomMargin"] = model.bottomMargin
        dict["topMargin"] = model.topMargin
        
        dict["topLeftString"] = model.topLeftString
        dict["topCenterString"] = model.topCenterString
        dict["topRightString"] = model.topRightString
        dict["bottomLeftString"] = model.bottomLeftString
        dict["bottomCenterString"] = model.bottomCenterString
        dict["bottomRightString"] = model.bottomRightString
        
        dict["dateFormatString"] = model.dateFormatString
        dict["pageFormatString"] = model.pageFormatString
        dict["startString"] = model.startString
        
        dict["name"] = model.name
        dict["tag"] = model.tag
        
        return dict
    }
    
    private func parseDictionary(dict: NSDictionary) -> KMHeaderFooterModel {
        let model = KMHeaderFooterModel()
        
        model.fontName = dict.object(forKey: "fontName") as! String
        model.fontsize = dict.object(forKey: "fontsize") as! CGFloat
        
        if let value = dict.object(forKey: "color") {
            model.color = NSColor.km_init(hex: value as! String)
        }
        
        model.leftMargin = dict.object(forKey: "leftMargin") as! Int
        model.rightMargin = dict.object(forKey: "rightMargin") as! Int
        model.bottomMargin = dict.object(forKey: "bottomMargin") as! Int
        model.topMargin = dict.object(forKey: "topMargin") as! Int
        
        model.topLeftString = dict.object(forKey: "topLeftString") as! String
        model.topCenterString = dict.object(forKey: "topCenterString") as! String
        model.topRightString = dict.object(forKey: "topRightString") as! String
        model.bottomLeftString = dict.object(forKey: "bottomLeftString") as! String
        model.bottomCenterString = dict.object(forKey: "bottomCenterString") as! String
        model.bottomRightString = dict.object(forKey: "bottomRightString") as! String
        
        model.dateFormatString = dict.object(forKey: "dateFormatString") as! String
        model.pageFormatString = dict.object(forKey: "pageFormatString") as! String
        model.startString = dict.object(forKey: "startString") as! String
        model.name = dict.object(forKey: "name") as! String
        model.tag = dict.object(forKey: "tag") as! String
        
        return model
    }
    
    //MARK: - Get
    func fetchHeaderFooterAvailableName() -> String {
        var availableIndex = 0
        for item in headFooterObjects {
            if item.name.hasPrefix("HeaderFooter") {
                if let index = Int(item.name.dropFirst("HeaderFooter".count)), index >= availableIndex {
                    availableIndex = index + 1
                }
            }
        }
        return "HeaderFooter\(availableIndex)"
    }
    
    //MARK: - Compare
    class func compareIsChangedModel(_ model: KMHeaderFooterModel, withDict dict: NSDictionary) -> Bool {
        if let value = dict["fontName"] {
            if model.fontName != (value as! String) {
                return true
            }
        }
        
        if let value = dict["fontsize"] {
            if model.fontsize != (value as! CGFloat) {
                return true
            }
        }
        
        if let value = dict["color"] {
            if model.color.toHex() != (value as! String) {
                return true
            }
        }
        
        if let value = dict["leftMargin"] {
            if model.leftMargin != (value as! Int) {
                return true
            }
        }
        if let value = dict["rightMargin"] {
            if model.rightMargin != (value as! Int) {
                return true
            }
        }
        if let value = dict["bottomMargin"] {
            if model.bottomMargin != (value as! Int) {
                return true
            }
        }
        if let value = dict["topMargin"] {
            if model.topMargin != (value as! Int) {
                return true
            }
        }
        
        if let value = dict["topLeftString"] {
            if model.topLeftString != (value as! String) {
                return true
            }
        }
        if let value = dict["topCenterString"] {
            if model.topCenterString != (value as! String) {
                return true
            }
        }
        if let value = dict["topRightString"] {
            if model.topRightString != (value as! String) {
                return true
            }
        }
        if let value = dict["bottomLeftString"] {
            if model.bottomLeftString != (value as! String) {
                return true
            }
        }
        if let value = dict["bottomCenterString"] {
            if model.bottomCenterString != (value as! String) {
                return true
            }
        }
        if let value = dict["bottomRightString"] {
            if model.bottomRightString != (value as! String) {
                return true
            }
        }
        
        if let value = dict["dateFormatString"] {
            if model.dateFormatString != (value as! String) {
                return true
            }
        }
        if let value = dict["pageFormatString"] {
            if model.pageFormatString != (value as! String) {
                return true
            }
        }
        if let value = dict["startString"] {
            if model.startString != (value as! String) {
                return true
            }
        }
        return false
    }
}

//MARK: - Class Method
extension KMHeaderFooterManager {
    class func getdateFormatArray() -> [String] {
        return [
            "m/d",
            "m/d/yy",
            "m/d/yyyy",
            "mm/dd/yy",
            "mm/dd/yyyy",
            "d/m/yy",
            "d/m/yyyy",
            "dd/mm/yy",
            "dd/mm/yyyy",
            "mm/yy",
            "mm/yyyy",
            "m.d.yy",
            "m.d.yyyy",
            "mm.dd.yy",
            "mm.dd.yyyy",
            "mm.yy",
            "mm.yyyy",
            "d.m.yy",
            "d.m.yyyy",
            "dd.mm.yy",
            "dd.mm.yyyy",
            "yy-mm-dd",
            "yyyy-mm-dd"
        ]
    }
    
    class func getPageFormats() -> [String] {
        return ["1",
                "1 of n",
                "1/n",
                "Page 1",
                "Page 1 of n"]
    }
    
    class func getFontSize() -> [String] {
        return ["6","8","10","12","14",
                "16","18","20","22","24",
                "26","28","30","32","34",
                "36","40","48","64","80",
                "96","112"]
    }
    
}