///
/// Copyright (c) 2013-2015 Sensus Metering Systems
///
using System;
using System.Collections.Generic;
using System.Globalization;
using Config.Entities;

namespace TBF
{
	public class Utils
	{
		/// <summary>
		/// Parse unsigned float
		/// </summary>
		public static bool TryParseUFloat(string text, out float result)
		{
			return float.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.CurrentCulture, out result) ||
				   float.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out result) ||
				   (Program.AltCulture != null && float.TryParse(text, NumberStyles.AllowDecimalPoint, Program.AltCulture, out result));
				   
		}
		public static float ParseUFloat(string text, float dfltVal)
		{
			float result;
			if (float.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.CurrentCulture, out result)) return result;
			if (float.TryParse(text, NumberStyles.AllowDecimalPoint, CultureInfo.InvariantCulture, out result)) return result;
			if (Program.AltCulture != null && float.TryParse(text, NumberStyles.AllowDecimalPoint, Program.AltCulture, out result)) return result;
			return dfltVal;
		}
		public static float ParseUFloat(string text)
		{
			return ParseUFloat(text, 0);
		}

		/// <summary>
		/// Parse float, sign allowed
		/// </summary>
		public static bool TryParseSFloat(string text, out float result)
		{
			return float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, CultureInfo.CurrentCulture, out result) ||
				   float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture, out result) ||
				   (Program.AltCulture != null && float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, Program.AltCulture, out result));
		}
		public static float ParseSFloat(string text, float dfltVal)
		{
			float result;
			if (float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, CultureInfo.CurrentCulture, out result)) return result;
			if (float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, CultureInfo.InvariantCulture, out result)) return result;
			if (Program.AltCulture != null && float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign, Program.AltCulture, out result)) return result;
			return dfltVal;
		}
		public static float ParseSFloat(string text)
		{
			return ParseSFloat(text, 0);
		}

		/// <summary>
		/// Parse float, sign allowed, exponent allowed
		/// </summary>
		public static bool TryParseEFloat(string text, out float result)
		{
			return float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowExponent, CultureInfo.CurrentCulture, out result) ||
				   float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowExponent, CultureInfo.InvariantCulture, out result) ||
				   (Program.AltCulture != null && float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowExponent, Program.AltCulture, out result));
		}
		public static float ParseEFloat(string text, float dfltVal)
		{
			float result;
			if (float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowExponent, CultureInfo.CurrentCulture, out result)) return result;
			if (float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowExponent, CultureInfo.InvariantCulture, out result)) return result;
			if (Program.AltCulture != null && float.TryParse(text, NumberStyles.AllowDecimalPoint | NumberStyles.AllowLeadingSign | NumberStyles.AllowExponent, Program.AltCulture, out result)) return result;
			return dfltVal;
		}
		public static float ParseEFloat(string text)
		{
			return ParseEFloat(text, 0);
		}

		/// <summary>
		/// Get a list of IValve-s from an entity implementing IHasValves
		/// </summary>
		/// <param name="entity">Entity implementing IHasValves</param>
		/// <returns>A list of IValves</returns>
		public static IList<BenchControl.GenericDevices.IValve> ValvesOpen(IHasValves entity)
		{
			var valvesOpen = new List<BenchControl.GenericDevices.IValve>();
            if (entity != null && entity.ValvesOpen != null && entity.ValvesOpen != string.Empty)
			{
				string[] vOpen = entity.ValvesOpen.Split(new char[] { ';' });
				foreach (var vName in vOpen)
				{
					valvesOpen.Add((BenchControl.GenericDevices.IValve)BenchControl.TbfComponents.FindComponent(vName));
				}
			}
			return valvesOpen;
		}

		/// <summary>
		/// Get a list of IValve-s from an entity implementing IHasValves
		/// </summary>
		/// <param name="entity">Entity implementing IHasValves</param>
		/// <returns>A list of IValves</returns>
		public static IList<BenchControl.GenericDevices.IValve> ValvesClose(IHasValves entity)
		{
			var valvesClose = new List<BenchControl.GenericDevices.IValve>();
			if (entity != null && entity.ValvesClose != null && entity.ValvesClose != string.Empty)
			{
				string[] vClose = entity.ValvesClose.Split(new char[] { ';' });
				foreach (var vName in vClose)
				{
					valvesClose.Add((BenchControl.GenericDevices.IValve)BenchControl.TbfComponents.FindComponent(vName));
				}
			}
			return valvesClose;
		}


		/// <summary>
		/// Get an array of RegulValve positions from a TransitionStep entity
		/// </summary>
		/// <param name="entity">TransitionStep entity</param>
		/// <returns>float[] of regulation valve positions from 0 to 100.0f</returns>
		public static float[] GetRegulValvesPositions(TransitionStep step)
		{
			int regvCount = BenchControl.Sequences.SequenceBase.RegulValves.Count;
			float[] result = new float[regvCount];

			string[] rvPosStr = (step.RegulValvesPct != null) ? step.RegulValvesPct.Split(new char[] { ';' }) : new string[0];
			for (int i = 0; i < regvCount; i++)
			{
				float fdummy;
				if ((i < rvPosStr.Length) && Utils.TryParseUFloat(rvPosStr[i], out fdummy) &&
					(fdummy >= 0) && (fdummy <= 100.0f))
				{
					result[i] = fdummy;
				}
                else // if ((i < rvPosStr.Length) && rvPosStr[i].Equals("---"))
				{
					result[i] = -1.0f;		/// Negative value means no regulation valve position change
				}
			}

			return result;
		}


        /// <summary>
        /// Get an array of Pump-With-FM power percentages from a TransitionStep entity
        /// </summary>
        /// <param name="entity">TransitionStep entity</param>
        /// <returns>float[] of FM-pump power percentages from 0 to 100.0f</returns>
        public static float[] GetPumpWithFMPcts(TransitionStep step)
        {
            int fmPumpCount = BenchControl.Sequences.SequenceBase.PumpsWithFM.Count;
            float[] result = new float[fmPumpCount];

            string[] fmPctsStr = (step.PumpWithFMPcts != null) ? step.PumpWithFMPcts.Split(new char[] { ';' }) : new string[0];
            for (int i = 0; i < fmPumpCount; i++)
            {
                float fdummy;
                if ((i < fmPctsStr.Length) && Utils.TryParseUFloat(fmPctsStr[i], out fdummy) &&
                    (fdummy >= 0) && (fdummy <= 100.0f))
                {
                    result[i] = fdummy;
                }
                else if ((i < fmPctsStr.Length) && fmPctsStr[i].Equals("Dflt"))
                {
                    result[i] = -2.0f;		/// This value means default pump power defined by the Test parameter
                }
                else //if ((i < rvPosStr.Length) && rvPosStr[i].Equals("---"))
                {
                    result[i] = -1.0f;		/// This value means no pump power change
                }
            }

            return result;
        }


		/// <summary>
		/// Pre-fetch the test results from the currently available results.
		/// The order of the returned results is the same as the order of tests in the procedure specification.
		/// </summary>
		/// <param name="procedure">Current procedure, it is used to determine the order of resulting test results</param>
		/// <param name="testResults">Currently available unsorted test results (can also be null)</param>
		/// <param name="meterPartNr">Water meter number (1-based) or 0=all (also compared with nonzero 'Part' number)</param>
		/// <returns>Ordered list of test results containing null-s for missing results</returns>
		public static IList<TestResult> GetSortedTestResults(Procedure procedure, IList<TestResult> testResults, int meterPartNr)
		{
			IList<TestResult> rslts = new List<TestResult>();

			if (procedure == null) return rslts;	/// Return an empty list if no procedure specified

			foreach (var test in procedure.Tests)
			{
				BenchControl.GenericDevices.ITestMethod method =
					BenchControl.TbfComponents.FindComponent(test.Method) as BenchControl.GenericDevices.ITestMethod;

				if ((method != null) && method.Publish(test) && ((test.Part == 0) || (meterPartNr == 0) || (test.Part == meterPartNr)))
				{
					for (int rpt = 1; rpt <= test.Repeats; rpt++)
					{
						bool added = false;
						if (testResults != null)
						{
							foreach (var testRslt in testResults)
							{
								if ((testRslt.TestId == test.Id) && (testRslt.RepetitionNr == rpt))
								{
									rslts.Add(testRslt);
									added = true;
									break;
								}
							}
						}
						if (!added) rslts.Add(null);
					}
				}
			}
			return rslts;
		}

		/// <summary>
		/// Pre-fetch the test names given the procedure and the meter number.
		/// The order or test names is the same as in the procedure specification.
		/// </summary>
		/// <param name="procedure">Procedure</param>
		/// <param name="meterPartNr">Water meter number (1-based) or 0=all (also compared with nonzero 'Part' number)</param>
		/// <returns>Ordered list of test names</returns>
		public static IList<string> GetDecoratedTestNames(Procedure procedure, int meterPartNr)
		{
			IList<string> names = new List<string>();

			if (procedure == null) return names;	/// Return an empty list if no procedure specified

			foreach (var test in procedure.Tests)
			{
				BenchControl.GenericDevices.ITestMethod method =
					BenchControl.TbfComponents.FindComponent(test.Method) as BenchControl.GenericDevices.ITestMethod;

				if ((method != null) && method.Publish(test) && ((test.Part == 0) || (meterPartNr == 0) || (test.Part == meterPartNr)))
				{
					if (test.Repeats == 1)
					{
						names.Add(test.Name);
						continue;
					}
					for (int rpt = 1; rpt <= test.Repeats; rpt++)
					{
						names.Add(test.Name + string.Format(" ({0}/{1})", rpt, test.Repeats));
					}
				}
			}
			return names;
		}

        /// <summary>
        /// To prepare the last argument of GetSortedTestResults() and GetDecoratedTestNames() functions
        /// </summary>
        /// <param name="wmNr1">Watermeter nr. (1-based)</param>
        /// <param name="combined">Meter: false=standard, true=combined</param>
        /// <returns>Part nr. of the meter</returns>
        public static int PartNr(int wmNr1, bool combined)
        {
            if (wmNr1 == 0) return 0;

            if (combined) return wmNr1;

            int wmPartSize = (wmNr1 - 1) / Config.Data.LineSize + 1;
            return wmPartSize;
        }

		/// <summary>
		/// Return test title for a given test and repetition number
		/// </summary>
		/// <param name="test">Test entity</param>
		/// <param name="repetitonNr">1 .. Nr. repetitions</param>
		/// <returns>Test title (string)</returns>
		public static string TestTitle(Test test, int repetitonNr)
		{
			if (test.Repeats == 1)
			{
				if (test.Part == 0)
				{
					return test.Name;											/// Single test
				}
				else
				{
					return string.Format("{0} ({1})", test.Name, test.Part);	/// A part of a single test
				}
			}
			else
			{
				/// More test repetitions
				return string.Format("{0} ({1}/{2})", test.Name, repetitonNr, test.Repeats);
			}
		}

		/// <summary>
		/// Converts a float number to a string with the specified number of valid digits
		/// </summary>
		/// <param name="value">Float value to be converted to a string</param>
		/// <param name="validDigits">Number of valid digits: 4, 3, or 2 (otherwise a full precision number is printed)</param>
		/// <returns>String representation of a float number</returns>
		public static string FloatToStr(float value, int validDigits)
		{
			if (-float.Epsilon <= value && value <= float.Epsilon)
			{
				return "0";
			}
			else if (validDigits == 4)
			{
				if      (value >= 999.5 || value < -999.5) return value.ToString("F0");
				else if (value >= 99.95 || value < -99.95) return value.ToString("F1");
				else if (value >= 9.995 || value < -9.995) return value.ToString("F2");
				else if (value >= 0.9995 || value < -0.9995) return value.ToString("F3");
				else if (value >= 0.09995 || value < -0.09995) return value.ToString("F4");
				else if (value >= 0.009995 || value < -0.009995) return value.ToString("F5");
				else return value.ToString("F6");
			}
			else if (validDigits == 3)
			{
				if      (value >= 99.5 || value < -99.5) return value.ToString("F0");
				else if (value >= 9.95 || value < -9.95) return value.ToString("F1");
				else if (value >= 0.995 || value < -0.995) return value.ToString("F2");
				else if (value >= 0.0995 || value < -0.0995) return value.ToString("F3");
				else if (value >= 0.00995 || value < -0.00995) return value.ToString("F4");
				else if (value >= 0.000995 || value < -0.000995) return value.ToString("F5");
				else return value.ToString("F6");
			}
			else if (validDigits == 2)
			{
				if      (value >= 9.5 || value < -9.5) return value.ToString("F0");
				else if (value >= 0.95 || value < -0.95) return value.ToString("F1");
				else if (value >= 0.095 || value < -0.095) return value.ToString("F2");
				else if (value >= 0.0095 || value < -0.0095) return value.ToString("F3");
				else if (value >= 0.00095 || value < -0.00095) return value.ToString("F4");
				else return value.ToString("F5");
			}
			else return value.ToString();
		}

		/// <summary>
		/// Converts a double number to a string with the specified number of valid digits
		/// </summary>
		/// <param name="value">Double value to be converted to a string</param>
		/// <param name="validDigits">Number of valid digits: 4, 3, or 2 (otherwise a full precision number is printed)</param>
		/// <returns>String representation of a double number</returns>
		public static string DoubleToStr(double value, int validDigits)
		{
			if (-float.Epsilon <= value && value <= float.Epsilon)
			{
				return "0";
			}
			else if (validDigits == 4)
			{
				if (value >= 999.5 || value < -999.5) return value.ToString("F0");
				else if (value >= 99.95 || value < -99.95) return value.ToString("F1");
				else if (value >= 9.995 || value < -9.995) return value.ToString("F2");
				else if (value >= 0.9995 || value < -0.9995) return value.ToString("F3");
				else if (value >= 0.09995 || value < -0.09995) return value.ToString("F4");
				else if (value >= 0.009995 || value < -0.009995) return value.ToString("F5");
				else return value.ToString("F6");
			}
			else if (validDigits == 3)
			{
				if (value >= 99.5 || value < -99.5) return value.ToString("F0");
				else if (value >= 9.95 || value < -9.95) return value.ToString("F1");
				else if (value >= 0.995 || value < -0.995) return value.ToString("F2");
				else if (value >= 0.0995 || value < -0.0995) return value.ToString("F3");
				else if (value >= 0.00995 || value < -0.00995) return value.ToString("F4");
				else if (value >= 0.000995 || value < -0.000995) return value.ToString("F5");
				else return value.ToString("F6");
			}
			else if (validDigits == 2)
			{
				if (value >= 9.5 || value < -9.5) return value.ToString("F0");
				else if (value >= 0.95 || value < -0.95) return value.ToString("F1");
				else if (value >= 0.095 || value < -0.095) return value.ToString("F2");
				else if (value >= 0.0095 || value < -0.0095) return value.ToString("F3");
				else if (value >= 0.00095 || value < -0.00095) return value.ToString("F4");
				else return value.ToString("F5");
			}
			else return value.ToString();
		}

		public static string ShowRoute(ulong route)
		{
			string str = string.Empty;
			int i = 0;
			for (ulong bitmask = 0x8000000000000000; bitmask > 0; bitmask /= 2)
			{
				str += ((route & bitmask) != 0) ? "1" : "0";
				i++;
				if (i < 64)
				{
					if ((i % 16) == 0) str += "-";
					else if ((i % 8) == 0) str += " ";
				}
			}
			return str;
		}

        public static string ToMyString(DateTime dateTime)
        {
            return string.Format("{0}{1}{2}_{3}{4}",
                                    dateTime.Year,
                                    dateTime.Month.ToString("D2"),
                                    dateTime.Day.ToString("D2"),
                                    dateTime.Hour.ToString("D2"),
                                    dateTime.Minute.ToString("D2"));
        }
	}
}