using System;
using System.Collections.Generic;
using System.ComponentModel;
//using System.Data;
//using System.Drawing;
//using System.Text;
//using System.Windows.Forms;
//using CommandLine.Utility;
using System.IO;
using System.Diagnostics;

namespace Snap2HTML
{
    class Utils
    {
        // Hack to sort folders correctly even if they have spaces/periods in them
        public static List<string> SortDirList(List<string> lstDirs)
        {
            for (int n = 0; n < lstDirs.Count; n++)
            {
                lstDirs[n] = lstDirs[n].Replace(" ", "1|1");
                lstDirs[n] = lstDirs[n].Replace(".", "2|2");
            }
            lstDirs.Sort();
            for (int n = 0; n < lstDirs.Count; n++)
            {
                lstDirs[n] = lstDirs[n].Replace("1|1", " ");
                lstDirs[n] = lstDirs[n].Replace("2|2", ".");
            }
            return lstDirs;
        }

        // Replaces characters that may appear in filenames/paths that have special meaning to JavaScript
        // Info on u2028/u2029: https://en.wikipedia.org/wiki/Newline#Unicode
        public static string MakeCleanJsString(string s)
        {
            return s.Replace("\\", "\\\\")
                    .Replace("&", "&amp;")
                    .Replace("\u2028", "")
                    .Replace("\u2029", "")
                    .Replace("\u0004", "");
        }

        // Test string for matches against a wildcard pattern. Use ? and * as wildcards. (Wrapper around RegEx)
        public static bool IsWildcardMatch(String wildcard, String text, bool casesensitive)
        {
            System.Text.StringBuilder sb = new System.Text.StringBuilder(wildcard.Length + 10);
            sb.Append("^");
            for (int i = 0; i < wildcard.Length; i++)
            {
                char c = wildcard[i];
                switch (c)
                {
                    case '*':
                        sb.Append(".*");
                        break;
                    case '?':
                        sb.Append(".");
                        break;
                    default:
                        sb.Append(System.Text.RegularExpressions.Regex.Escape(wildcard[i].ToString()));
                        break;
                }
            }
            sb.Append("$");
            System.Text.RegularExpressions.Regex regex;
            if (casesensitive)
                regex = new System.Text.RegularExpressions.Regex(sb.ToString(), System.Text.RegularExpressions.RegexOptions.None);
            else
                regex = new System.Text.RegularExpressions.Regex(sb.ToString(), System.Text.RegularExpressions.RegexOptions.IgnoreCase);

            return regex.IsMatch(text);
        }

        public static int ToUnixTimestamp(DateTime value)
        {
            return (int)Math.Truncate((value.ToUniversalTime().Subtract(new DateTime(1970, 1, 1))).TotalSeconds);
        }

        public static long ParseLong(string s)
        {
            long num;
            if (Int64.TryParse(s, out num))
            {
                return num;
            }
            return 0;
        }
    }
}