using System;
using System.Timers;
using TradeIdeas.MiscSupport;
using TradeIdeas.TIProData.Interfaces;

namespace TradeIdeas.TIProData
{
    public static class TIQUtilities
    {
        //This is a fake data generator that's especially tailored for the RBI/GBI custom windows that's currently being developed in the TIProDevExtensions. Most of this 
        //code copied from the TIQ, but with a number of changes for our particular case. It's crude, but it does furnish the fake stuff. 
        // 
        private static Timer _timer;
        private static IConnectionMaster _connectionMaster;
        private static readonly DateTime REFERENCE = new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc); //http://stackoverflow.com/questions/7227278/net-datetime-to-time-t-in-seconds
        public static void StartFakeData(IConnectionMaster connectionMaster)
        {
            _connectionMaster = connectionMaster;
            _timer = new Timer(20000); // Set up the timer (milliseconds)
            _timer.Elapsed += new ElapsedEventHandler(_timer_Elapsed);
            _timer.Enabled = true; // Enable it
        }

        static void _timer_Elapsed(object sender, ElapsedEventArgs e)
        {
            string symbol = GetRandomString(4);
            string entry = getRandomPriceString();
            string stop = getRandomPriceString();
            string price = getRandomPriceString();
            string prevClose = getRandomPriceString();
            string volume = getRandomVolumeString();
            string avVol = getRandomVolumeString();
            string posRange = getRandomPriceString();
            string postionInRange = getRandomPriceString();
            string high = getRandomPriceString();
            string low = (Double.Parse(high) - Double.Parse(high) / 3.0).ToString();
            string date = (ServerFormats.ToTimeT(DateTime.Now)).ToString();
            string finalString = "symbol=" + symbol + "&TIME=" + date + "&price=" + price + "&entry=" + entry + "&stop=" + stop + "&prev_close=" + prevClose + "&tvol=" + volume + "&advol=" + avVol + "&high=" + high + "&low=" + low + "&test=1";
            _connectionMaster.TraditionalAlertsManager.SendMessage(GetCategory(), finalString);
        }
        public static void StopFakeData()
        {
            if (_timer != null)
            {
                _timer.Stop();
            }
        }
        private static string GetRandomString(int length)
        {
            //code from http://blog.codeeffects.com/Article/Generate-Random-Numbers-And-Strings-C-Sharp
            string[] array = new string[26]
	        {
	        	"A","B","C","D","E","F","G","H","I","J","K","L","M","N","O","P","Q","R","S","T","U","V","W","X","Y","Z"
	        };
            System.Text.StringBuilder sb = new System.Text.StringBuilder();
            for (int i = 0; i < length; i++) sb.Append(array[GetRandomNumber(25)]);
            return sb.ToString();
        }
        private static string getRandomPriceString()
        {
            double tens = GetRandomNumber(99);
            double fraction = GetRandomNumber(99);
            return (tens + fraction / 100).ToString();
        }
        private static string GetCategory()
        {
            string[] array = new String[6]
            {
                "tipro-GBI5","tipro-GBI15","tipro-GBI30","tipro-RBI5","tipro-RBI15","tipro-RBI30"
            };
           return  array[GetRandomNumber(6)];
        }
        private static string getRandomVolumeString()
        {
            byte[] b = new byte[4];
            new System.Security.Cryptography.RNGCryptoServiceProvider().GetBytes(b);
            int seed = (b[0] & 0x7f) << 24 | b[1] << 16 | b[2] << 8 | b[3];
            System.Random r = new System.Random(seed);
            return (r.Next(50000, 101000)).ToString();
        }
        private static int GetRandomNumber(int maxNumber)
        {
            //code from http://blog.codeeffects.com/Article/Generate-Random-Numbers-And-Strings-C-Sharp
            if (maxNumber < 1)
                throw new System.Exception("The maxNumber value should be greater than 1");
            byte[] b = new byte[4];
            new System.Security.Cryptography.RNGCryptoServiceProvider().GetBytes(b);
            int seed = (b[0] & 0x7f) << 24 | b[1] << 16 | b[2] << 8 | b[3];
            System.Random r = new System.Random(seed);
            return r.Next(1, maxNumber);
        }
    }
}