//
//  KMTools.swift
//  PDF Master
//
//  Created by tangchao on 2023/3/7.
//

import Cocoa

@objc class KMTools: NSObject {
    
    // MARK: -
    // MARK: 获取已打开的文件
    @objc class func getOpenDocumentURLs() -> [URL] {
        var files:[URL] = []
        for window in NSApp.windows {
            if ((window.windowController is KMBrowserWindowController) == false) {
                continue
            }
            
            let controller: KMBrowserWindowController = window.windowController as! KMBrowserWindowController
            let model = controller.browser?.tabStripModel
            guard let count = model?.count() else {
                continue
            }
            
            if (count <= 0) {
                continue
            }
            
            for i in 0 ..< count {
                let document = model?.tabContents(at: Int32(i))
//                if (document?.windowControllers == nil || document?.windowControllers.count == 0) {
//                    continue
//                }
                if (document?.fileURL == nil) {
                    continue
                }
                
                if (document?.isHome == nil || document!.isHome) {
                    continue
                }
                
                files.append((document?.fileURL)!)
            }
        }
        return files
    }
    
    // MARK: -
    // MARK: 无法区分 [权限+开启] [开启] 这两种情况 请不要使用
    private class func isDocumentHasPermissionsPassword(_ url: URL) -> Bool {
        let document = PDFDocument(url: url)
        if (document == nil) {
            return false
        }
        
        if (document?.permissionsStatus == .user) {
            return true
        }
        
        // document?.permissionsStatus == .none
        if (document!.isLocked == false) { // 没有加锁
            return false
        }
        
        // 已加锁 [权限+开启] [开启]
        if (KMTools.hasPermissionsLimit(document!)) { // 有权限限制
            return true
        }
        
        return false
    }
    
    // MARK: -
    // MARK: 暂时只处理了复制和打印两项(后续项目需求有新增时，可以再此方法里扩展)
    @objc class func hasPermissionsLimit(_ document: PDFDocument) -> Bool {
        if (document.allowsCopying == false) {
            return true
        }
        if (document.allowsPrinting == false) {
            return true
        }
        return false
    }
    
    // MARK: -
    // MARK: 打开网页
    
    @objc class func openURL(url: URL?) {
        guard let _url = url else {
            KMPrint("url invalid.")
            return
        }
        NSWorkspace.shared.open(_url)
    }
    
    @objc class func openURL(urlString: String?) {
        guard let _urlString = urlString else {
            KMPrint("url invalid.")
            return
        }
        
        KMTools.openURL(url: URL(string: _urlString))
    }
    
    // MARK: -
    // MARK: 获取 App 版本号
    @objc class func getAppVersion() -> String {
        let infoDictionary = Bundle.main.infoDictionary
        if (infoDictionary == nil) {
            return "1.0.0"
        }
        
        var version = infoDictionary!["CFBundleShortVersionString"]
        if (version != nil && (version is String) && (version as! String).isEmpty == false) {
            return version as! String
        }
        
        version = infoDictionary!["CFBundleVersion"]
        if (version != nil && (version is String) && (version as! String).isEmpty == false) {
            return version as! String
        }
        
        return "1.0.0"
    }
    
    class func getSystemVersion() -> (Int, Int, Int) {
        let versionInfo = ProcessInfo.processInfo.operatingSystemVersion
        return (versionInfo.majorVersion, versionInfo.minorVersion, versionInfo.patchVersion)
    }
    
    @objc class func isDefaultPDFReader() -> Bool {
        let app = LSCopyDefaultRoleHandlerForContentType("pdf" as CFString, LSRolesMask.all)?.takeUnretainedValue()
        if (app == nil) {
            return false
        }
        
        return (app! as String) == Bundle.main.bundleIdentifier!
    }
    
    @objc class func setDefaultPDFReader(_ isOrNo: Bool) -> Bool {
        var bid = "com.apple.Preview"
        if (isOrNo) {
            bid = Bundle.main.bundleIdentifier!
        }
        let status: OSStatus = LSSetDefaultRoleHandlerForContentType(KMTools.UTIforFileExtension("pdf") as CFString, LSRolesMask.all, bid as CFString)
        if (status == 0) {
            return true
        }
        return false
    }
    
    @objc class func UTIforFileExtension(_ exn: String) -> String {
        return (UTTypeCreatePreferredIdentifierForTag(kUTTagClassFilenameExtension, exn as CFString, nil)?.takeUnretainedValue())! as String
    }
    
    // MARK: -
    // MARK: 是否全屏
    
    @objc class func isFullScreen(_ window: NSWindow) -> Bool {
        return window.styleMask.contains(.fullScreen)
    }
    
    // MARK: -
    // MARK: 文件类型
    
    static let imageExtensions = ["jpg","cur","bmp","jpeg","gif","png","tiff","tif",/*@"pic",*/"ico","icns","tga","psd","eps","hdr","jp2","jpc","pict","sgi","heic"]
    static let pdfExtensions = ["pdf"]
    static let officeExtensions = ["doc", "docx", "xls", "xlsx", "ppt", "pptx"]
    
    @objc class func isImageType(_ exn: String) -> Bool {
        return KMTools.imageExtensions.contains(exn.lowercased())
    }
    
    @objc class func isPDFType(_ exn: String) -> Bool {
        return KMTools.pdfExtensions.contains(exn.lowercased())
    }
    
    @objc class func isOfficeType(_ exn: String) -> Bool {
        return KMTools.officeExtensions.contains(exn.lowercased())
    }
}

// MARK: -
// MARK: PDFMaster

extension KMTools {
    // 打开 [快速教学]
    @objc class func openQuickStartStudy() {
        // MARK: -
        // MARK: 内嵌文档需要替换
        var fileName = "PDF Master User Guide"
        let fileType = "pdf"
        
        let path = Bundle.main.path(forResource: fileName, ofType: fileType)
        if (path == nil || FileManager.default.fileExists(atPath: path!) == false) {
            KMTools.openURL(url: URL(string: "https://www.pdfreaderpro.com/help"))
            return
        }
        
        let version = KMTools.getAppVersion()
        fileName.append(" v\(version).\(fileType)")
        
        let folderPath = NSSearchPathForDirectoriesInDomains(.applicationSupportDirectory, .userDomainMask, true).last?.appending("/\(Bundle.main.bundleIdentifier!)")
        if (FileManager.default.fileExists(atPath: folderPath!) == false) {
            try?FileManager.default.createDirectory(atPath: folderPath!, withIntermediateDirectories: false)
        }
        
        let toPath = "\(folderPath!)/\(fileName)"
        if (FileManager.default.fileExists(atPath: toPath)) {
            try?FileManager.default.removeItem(atPath: toPath)
        }
        try?FileManager.default.copyItem(atPath: path!, toPath: toPath)
        
        if !toPath.isPDFValid() {
            let alert = NSAlert()
            alert.alertStyle = .critical
            alert.messageText = NSLocalizedString("An error occurred while opening this document. The file is damaged and could not be repaired.", comment: "")
            alert.runModal()
            return
        }
        NSDocumentController.shared.openDocument(withContentsOf: URL(fileURLWithPath: toPath), display: true) { document, result, error in
            if (error != nil) {
                NSApp.presentError(error!)
            }
        }
    }
    
    // 打开 [FAQ] 网站
    @objc class func openFAQWebsite() {
//        KMTools.openURL(URL(string: "")!)
    }
    
    // 打开 [更多产品] 网站
    @objc class func openMoreProductWebsite() {
        KMTools.openURL(url: URL(string: "https://www.pdfreaderpro.com/product?utm_source=MacApp&utm_campaign=ProductLink&utm_medium=PdfProduct"))
    }
    
    // 打开 [免费 PDF 模板] 网站
    @objc class func openFreePDFTemplatesWebsite() {
        KMTools.openURL(url: URL(string: "https://www.pdfreaderpro.com/templates?utm_source=MacApp&utm_campaign=TemplatesLink&utm_medium=PdfTemplates"))
    }
    
    // 打开 [ComPDFKit 授权] 网站
    @objc class func openComPDFKitPowerWebsite() {
        KMTools.openURL(url: URL(string: "https://www.compdf.com/?utm_source=macapp&utm_medium=pdfmac&utm_campaign=compdfkit-promp"))
    }
    
    // 打开 [官网 下载页] 网站
    // 测试环境 http://test-pdf-pro.kdan.cn:3021/pdf-master-mac-download
    @objc class func openDownloadDMGWebsite() {
        KMTools.openURL(urlString: "https://www.pdfreaderpro.com/pdf-master-mac-download")
    }
    
    // 意见反馈
    @objc class func feekback() {
        let (major, minor, bugFix) = KMTools.getSystemVersion()
        let versionInfoString = "\(KMTools.getRawSystemInfo()) - \(major).\(minor).\(bugFix)"
        
        let appVersion = KMTools.getAppVersion()
        let appName = KMTools.getAppName()
        let subjects = "\(appName) - \(appVersion);\(NSLocalizedString("Propose a New Feature", comment: ""));\(versionInfoString)"
        // MARK: -
        // MARK TODO: 邮箱域名需要替换
        let email = "support@pdfreaderpro.com"
        
        // MARK: -
        // MARK TODO: 邮箱域名需要替换
        KMMailHelper.newEmail(withContacts: email, andSubjects: subjects)
    }
    
    @objc class func getRawSystemInfo() -> String {
        let info = GBDeviceInfo.deviceInfo().rawSystemInfoString
        if (info == nil) {
            return ""
        }
        return info!
    }
    
    @objc class func getAppName() -> String {
        let appTarget = KMTools_OC.getAppTarget()
        if (appTarget == .free) {
            return "PDF Master"
        } else if (appTarget == .pro) {
            return "PDF Master Pro"
        } else if (appTarget == .DMG) {
//            return "PDF Master DMG"
            return "PDF Master"
        }
        return "PDF Master"
    }
    
    @objc class func pageRangeTypeString(pageRange: KMPageRange) -> String {
        switch pageRange {
        case .all:
            return NSLocalizedString("All Pages", comment: "")
        case .current:
            return NSLocalizedString("Current Page", comment: "")
        case .odd:
            return NSLocalizedString("Odd Pages", comment: "")
        case .even:
            return NSLocalizedString("Even Pages", comment: "")
        case .custom:
            return NSLocalizedString("Customize", comment: "")
        }
    }
}