using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Web;

namespace ExportMap.cs
{
    public class TBUtils
    {
        /// <summary>
        /// 获取源目录
        /// </summary>
        public static string SourcesPath
        {
            get
            {
                return Path.Combine(Tools.BaseDir, "TerraBuilder");
            }
        }

        /// <summary>
        /// 时间字符串
        /// </summary>
        public static string TimeStr
        {
            get
            {
                return DateTime.Now.ToString("yyyyMMddhhmmss");
            }
        }

        /// <summary>
        /// Mpt路径
        /// </summary>
        public static string MptPath
        {
            get
            {
                return Tools.GetSetting("mpt");
            }
        }

        /// <summary>
        /// 创建MPT
        /// </summary>
        public static string CreateMpt(string sourcePath, ref string err)
        {
            string time = TimeStr;
            string targetPath = Path.Combine(Tools.TempDir, time);

            try
            {
                if (!Directory.Exists(targetPath)) Directory.CreateDirectory(targetPath);

                MoveFilesToTemp(sourcePath, targetPath);
                string tbp = GetNewTbp(time);
                string js = GetNewJs(time, tbp, targetPath);

                return null;
            }
            catch (Exception ex)
            {
                LogOut.Error(ex.Message + "\r\n" + ex.StackTrace);
                err = ex.Message;
                return null;
            }
            finally
            {
                if (Directory.Exists(targetPath)) Directory.Delete(targetPath, true);
            }
        }

        /// <summary>
        /// 获取新Tbp文件
        /// </summary>
        private static string GetNewTbp(string time)
        {
            string tbp = Path.Combine(SourcesPath, "tb.tbp");
            string newTbp = Path.Combine(Tools.TempDir, time, time + ".tbp");

            File.Copy(tbp, newTbp);

            return newTbp;
        }

        /// <summary>
        /// 移动文件至临时目录
        /// </summary>
        private static void MoveFilesToTemp(string sourcePath, string targetPath)
        {
            CopyFolder(Path.Combine(sourcePath, "数字正射影像图"), Path.Combine(targetPath, "img"));
            CopyFolder(Path.Combine(sourcePath, "数字高程模型"), Path.Combine(targetPath, "dem"));
            CopyFolder(Path.Combine(sourcePath, "中线裁剪范围"), Path.Combine(targetPath, "shp"));
        }

        /// <summary>
        /// 复制目录
        /// </summary>
        private static void CopyFolder(string sourcePath, string targetPath)
        {
            if (!Directory.Exists(targetPath)) Directory.CreateDirectory(targetPath);

            DirectoryInfo di = new DirectoryInfo(sourcePath);

            FileInfo[] files = di.GetFiles();
            if (null == files || 0 == files.Length) return;

            foreach (FileInfo fi in files)
            {
                File.Move(fi.FullName, Path.Combine(targetPath, fi.Name));
            }
        }

        /// <summary>
        /// 获取新JS
        /// </summary>
        private static string GetNewJs(string time, string tbp, string targetPath)
        {
            string js = Path.Combine(SourcesPath, "template.js");
            string img = GetFilePath(Path.Combine(targetPath, "img"), "*.tif");
            string dem = GetFilePath(Path.Combine(targetPath, "dem"), "*.tif");
            string shp = GetFilePath(Path.Combine(targetPath, "shp"), "*.shp");

            string str = File.ReadAllText(js);
            str = str.Replace("{tbp}", tbp)
                .Replace("{img}", img)
                .Replace("{dem}", dem)
                .Replace("{shp}", shp)
                .Replace("\\", "\\\\");

            string newJs = Path.Combine(Tools.TempDir, time, time + ".js");
            File.WriteAllText(newJs, str);

            return newJs;
        }

        /// <summary>
        /// 获取文件路径
        /// </summary>
        private static string GetFilePath(string path, string ext)
        {
            DirectoryInfo di = new DirectoryInfo(path);
            FileInfo[] files = di.GetFiles(ext);

            return null == files || 0 == files.Length ? string.Empty : files[0].FullName;
        }

        /// <summary>
        /// 重启TB程序
        /// </summary>
        private static void ReloadTB()
        {
            List<string> list = new List<string>();
            list.Add("taskkill /f /t /im TerraBuilder.exe");
            list.Add("taskkill /f /t /im TBFuser.exe");
            list.Add("start /d \"C:\\Program Files\\Skyline\\TerraBuilder Fuser\" TBFuser.exe");

            Tools.ExecCmd(list, false);
        }
    }
}