using System;
using System.IO;
using System.Text;
using System.Xml.Serialization;
using TBF.BenchControl.Generic;
using TBF.Resources;

namespace TBF.BenchControl.TestMethods.CombinedWithDetection
{
	public class CombinedWithDetTestParams : IParamsProvider, ITestParams
	{
		public float TargetQ;		    /// Target=terminal flow durning detection when increasing or decreasing the flow
		public float RelativeQfrom;		/// Tested flow low range related to the detected flow
		public float RelativeQto;		/// Tested flow high range related to the detected flow
		public float RateOfChange;		/// Each step is calculated as (TargetQfrom - Qfrom) * RateOfChange, text form is displayed in % (*100)
		public float DetectionThreshold;/// Drop of frequency for the detection, text form is displayed in % (*100)
        public int SupressTrills;

		string[] paramNames = new string[]
		{
			Strings.TargetQ,
			Strings.RelativeQfrom,
			Strings.RelativeQto,
			Strings.RateOfChangePct,
			Strings.DetectionThresholdPct,
			Strings.SupressWMTrills,
		};
		public string ParamName(int i) { return paramNames[i]; }

		public string ToString(int i)
		{
			switch (i)
			{
				case 0: return TargetQ.ToString();
				case 1: return RelativeQfrom.ToString();
				case 2: return RelativeQto.ToString();
				case 3: return (100.0f * RateOfChange).ToString();
				case 4: return (100.0f * DetectionThreshold).ToString();
                case 5: return SupressTrills.ToString();
				default: return string.Empty;
			}
		}

		public void UpdateParam(int i, string strValue)
		{
			switch (i)
			{
				case 0: TargetQ = Utils.ParseUFloat(strValue); return;
				case 1: RelativeQfrom = Utils.ParseSFloat(strValue); return;
				case 2: RelativeQto = Utils.ParseSFloat(strValue); return;
				case 3: RateOfChange = Utils.ParseUFloat(strValue) / 100.0f; return;
				case 4: DetectionThreshold = Utils.ParseUFloat(strValue) / 100.0f; return;
                case 5: SupressTrills = int.Parse(strValue); return;
				default: return;
			}
		}

		public bool ValidateParam(int i, string strValue, out string message)
		{
			message = string.Empty;

			float dummy;
            int idummy;
			switch (i)
			{
				case 0:
				case 3:
				case 4:
					if (Utils.TryParseUFloat(strValue, out dummy)) return true;
					break;
				case 1:
				case 2:
					if (Utils.TryParseSFloat(strValue, out dummy)) return true;
					break;
                case 5:
                    if (int.TryParse(strValue, out idummy)) return true;
                    break;
				default:
					message = "Invalid index";
					return false;
			}

			message = ParamName(i) + " is invalid";
			return false;
		}

		#region Boilerplate code
		
		public int ParamsCount() { return paramNames.Length; }

		public override string ToString()
		{
			StringBuilder sb = new StringBuilder();
			for (int i = 0; i < ParamsCount(); i++)
			{
				if (i != 0) sb.Append("; ");
				sb.Append(ParamName(i));
				sb.Append("=");
				sb.Append(ToString(i));
			}
			return sb.ToString();
		}

		[XmlIgnore]
		public Entities.ComponentTest TestParamsEntity { get { return testParamsEntity; } }
		Entities.ComponentTest testParamsEntity;

		[XmlIgnore]
		public string ComponentName { get { return componentName; } }
		string componentName;

		[XmlIgnore]
		public Entities.Test Test { get { return test; } }
		Entities.Test test;

		/// Parameterless constructor
		public CombinedWithDetTestParams()
		{
			TargetQ = 3.0f;
			RelativeQfrom = -0.4f;
			RelativeQto = -0.2f;
			RateOfChange = 0.05f;
			DetectionThreshold = 0.25f;
		}

		public CombinedWithDetTestParams(Entities.ComponentTest testParamsEntity, string componentName, Entities.Test test)
			: this()
		{
			this.testParamsEntity = testParamsEntity;
			this.componentName = componentName;
			this.test = test;
		}

		public TBF.Entities.ComponentTest ToDbEntity(IComponent component, Entities.Test test)
		{
			using (var writer = new StringWriter())
			{
				/// Serialize this class with parameters
				(new XmlSerializer(GetType())).Serialize(writer, this);

				/// Create and return the ComponentTest entity
				TBF.Entities.ComponentTest entity = new TBF.Entities.ComponentTest();
				entity.CmpntName = component.Cfg.Name;
				entity.Parameters = writer.ToString();
				entity.Test = test;
				return entity;
			}
		}

		public void UpdateDbEntity()
		{
			using (var writer = new StringWriter())
			{
				/// Serialize this class and update the entity
				(new XmlSerializer(GetType())).Serialize(writer, this);
				testParamsEntity.Parameters = writer.ToString();
				testParamsEntity.CmpntName = componentName;
				testParamsEntity.Test = test;

			}
		}

		public static IParamsProvider GetTestParams(Entities.ComponentTest testParamsEntity)
		{
			if (testParamsEntity == null) return new CombinedWithDetTestParams();

			CombinedWithDetTestParams testParams;
			try
			{
				testParams = (CombinedWithDetTestParams)(new XmlSerializer(typeof(CombinedWithDetTestParams)))
					.Deserialize(new StringReader(testParamsEntity.Parameters));
			}
			catch
			{
				testParams = new CombinedWithDetTestParams();
			}
			testParams.testParamsEntity = testParamsEntity;
			testParams.componentName = testParamsEntity.CmpntName;
			testParams.test = testParamsEntity.Test;
			return testParams;
		}

		#endregion
	}
}