using Newtonsoft.Json;
using StackExchange.Redis;
using System.Reflection;
using WebSupergoo.ABCpdf11;
using static PDFMonitor_SVG.Entities;

namespace PDFMonitor_SVG {

    public partial class FormMain : Form {
        private ConnectionMultiplexer? redisClient;
        private string? redisServerUrl;
        private string? redisServerPwd;
        private string? redisTaskKey;
        private string? redisCallbackKey;
        //生成的PDF文件目录
        private string? completedPDFPath;

        //private FixedThreadPool threadPool;
        private SynchronizationContext context;


        public FormMain() {
            InitializeComponent();
            ReadServerConfig();
            try {
                redisClient = ConnectionMultiplexer.Connect(redisServerUrl + ",password=" + redisServerPwd);
                memoLog.Items.Add("redis连接成功");
            }
            catch (Exception ex) {
                memoLog.Items.Add("redis连接失败,请检查程序设置");
                memoLog.Items.Add(ex.Message);
            }
            //threadPool = new FixedThreadPool(8); //默认8个线程
            ThreadPool.SetMinThreads(4, 4);
            ThreadPool.SetMaxThreads(8, 8);
            // 获取当前的SynchronizationContext
            context = SynchronizationContext.Current;

            WebSupergoo.ABCpdf11.XSettings.InstallLicense("X/VKS0cMn8tAun4hGNvFONyWaelyItt2pqrH5srEKm4brmiSKC69N5FsGmRijGFheK9mhXoi/HVdi/VrNv0Vv1RyfQWQCg==");
        }

        ~FormMain() {
            redisClient?.Dispose();
            //threadPool.Shutdown();
        }

        private void ReadServerConfig() {
            string iniPath = Path.GetDirectoryName(Assembly.GetExecutingAssembly().Location) + "\\PDFMonitor_SVG.ini";
            IniFile ini = new(iniPath);

            redisServerUrl = ini.Read("redis", "redisServerUrl", "127.0.0.1:6379");
            redisServerPwd = ini.Read("redis", "redisServerPwd", "Admin@dounengyin@123");
            redisTaskKey = ini.Read("redis", "redisTaskKey", "sdtool:mall:designer:svg:task:list:1000");
            redisCallbackKey = ini.Read("redis", "redisCallbackKey", "sdtool:mall:designer:pdf:callback:list:1000");

            completedPDFPath = ini.Read("path", "completedPDFPath", "D:\\testPdfOut\\");
            if (!Directory.Exists(completedPDFPath)) {
                Directory.CreateDirectory(completedPDFPath);
            }
        }

        private void TimerGetTask_Tick(object sender, EventArgs e) {
            RedisValue taskInfo = redisClient.GetDatabase().ListLeftPop(redisTaskKey);
            if (!taskInfo.IsNullOrEmpty) {
                // 有任务了,干活  
                SVGTaskInfo svgTaskInfo = JsonConvert.DeserializeObject<SVGTaskInfo>(taskInfo);
                if (svgTaskInfo == null) return;

                memoLog.Items.Add("获取任务[" + svgTaskInfo.SvgFileName + "]成功");
                //todo 
                //threadPool.Execute(() => {
                //    doConvertTask(svgTaskInfo);
                //});
                ThreadPool.QueueUserWorkItem(new WaitCallback(doConvertTask), svgTaskInfo);
            }
        }

        private void doConvertTask(object state) {
            SVGTaskInfo svgTaskInfo = (SVGTaskInfo)state;
            try {
                context.Post(_ => {
                    memoLog.Items.Add(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") +
                    " 任务[" + svgTaskInfo.SvgFileName + "]开始");
                }, null);
                //传过来的是px,转成mm
                int fileWidth = px2mm(double.Parse(svgTaskInfo.Width));
                int fileHeight = px2mm(double.Parse(svgTaskInfo.Height));
                int fileWidthPx = (int)Math.Ceiling(double.Parse(svgTaskInfo.Width));

                Doc doc = new Doc();
                doc.Units = UnitType.Mm;
                //doc.MediaBox.Top = 0;
                //doc.MediaBox.Left = 0;
                //doc.MediaBox.Right = fileWidth;
                //doc.MediaBox.Bottom = fileHeight;
                string mediaBoxStr = "0 0 " + fileWidth + " " + fileHeight;
                doc.MediaBox.String = mediaBoxStr;
                doc.MediaBox.Pin = XRect.Corner.TopLeft;
                doc.Rect.String = doc.MediaBox.String;
                doc.Rect.Pin = XRect.Corner.TopLeft;
                doc.HtmlOptions.Media = MediaType.Print;

                string convertedFileName = Path.ChangeExtension(svgTaskInfo.SvgFileName, ".pdf");
                string convertedFilePath = completedPDFPath + convertedFileName;

                doc.AddImageUrl(svgTaskInfo.SvgPath, true, fileWidthPx, true);
                doc.Save(convertedFilePath);
                doc.Clear();
                doc.Dispose();

                PDFCallbackInfo pdfCallbackInfo = new PDFCallbackInfo();
                pdfCallbackInfo.IdDesignOrder = svgTaskInfo.IdDesignOrder;
                pdfCallbackInfo.PdfFileName = convertedFileName;
                redisClient.GetDatabase().ListRightPush(redisCallbackKey, JsonConvert.SerializeObject(pdfCallbackInfo));

                context.Post(_ => {
                    memoLog.Items.Add(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") +
                    " 任务[" + svgTaskInfo.SvgFileName + "]完成");
                }, null);
            }
            catch (Exception ex) {
                context.Post(_ => {
                    memoLog.Items.Add(DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") +
                    " 任务[" + svgTaskInfo.SvgFileName + "]失败");
                    memoLog.Items.Add($"{ex.Message}");
                }, null);
            }

        }

        private void btnStartService_Click(object sender, EventArgs e) {
            if (redisClient == null) {
                memoLog.Items.Add("redis客户端未连接,请修正程序设置后重启");
                return;
            }
            memoLog.Items.Add("服务已启动");

            timerGetTask.Start();
        }

        private void btnStopService_Click(object sender, EventArgs e) {
            timerGetTask.Stop();
            memoLog.Items.Add("服务已停止");
        }
    }
}