using System;
using System.Collections.Generic;
using System.Text;
using System.IO;
using Bot.CommandSystem;
using OpenMetaverse;



namespace Bot
{
    public sealed class GroupLog
    {

        private static readonly object _lock = new object();
        private static GroupLog _in;
        private static readonly object _writeLock = new object();

        static GroupLog() { }

        public static GroupLog Instance
        {
            get
            {
                lock (_lock)
                {
                    if (_in == null) _in = new GroupLog();
                    return _in;
                }
            }
        }

        public void WriteLogEntry(string LogName, string ToAppend)
        {
            // Log filename will ALWAYS contain the date
            try
            {
                lock (_writeLock)
                {

                    string date = DateTime.Now.ToString("M-d-yyyy");
                    date += " " + LogName + ".log";

                    if (!Directory.Exists("GroupChatLogs")) Directory.CreateDirectory("GroupChatLogs");

                    date = "GroupChatLogs/" + date;

                    File.AppendAllText(date, "[" + DateTime.Now.ToString("hh:mm:ss") + "]: " + ToAppend + "\n");
                }
            }
            catch (Exception e) { }
        }

        private static readonly object _fileRead = new object();
        [CommandGroupMaster("Logging")]
        [CommandGroup("search_log", 5, 2, "search_log [groupName] [search_term]  -  Searches for the search term in all logs relating to the group name (Use a underscore to show where spaces are!). The search term may also include the pipe (|) delimiter to include more than 1 word.", Bot.MessageHandler.Destinations.DEST_AGENT | Bot.MessageHandler.Destinations.DEST_LOCAL)]
        public void search_log(UUID client, int level, GridClient grid, string[] additionalArgs,
                                MessageHandler.MessageHandleEvent MHE, MessageHandler.Destinations source,
                                CommandRegistry registry, UUID agentKey, string agentName)
        {
            string GrpName = additionalArgs[0].Replace('_', ' ');
            string[] search = additionalArgs[1].Split('|');

            DirectoryInfo di = new DirectoryInfo("GroupChatLogs");
            foreach (FileInfo fi in di.GetFiles())
            {
                // check if filename contains the group name
                string onlyName = Path.GetFileNameWithoutExtension(fi.Name);

                if (onlyName.Contains(GrpName))
                {
                    // read file
                    lock (_fileRead)
                    {
                        foreach (string S in File.ReadLines("GroupChatLogs/" + onlyName + ".log"))
                        {
                            foreach (string V in search)
                            {
                                if (S.Contains(V, StringComparison.OrdinalIgnoreCase))
                                {

                                    MHE(source, client, "{[https://zontreck.dev:35591/viewlog/" + Uri.EscapeUriString(onlyName) + " " + onlyName + "]} " + S);
                                }
                            }
                        }


                    }
                }

            }

            MHE(source, client, ".\n \n[Search Completed]");
        }
    }
}