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

namespace TBF.BenchControl.WaterMeter
{
	public class ProcParams : IParamsProvider, IProcedureParams
	{
        public string Producer;				/// Hersteller
		public float Qn;
        public string ApprovalInfo;			/// Zulassungszeichen
        public string MetrologicalClass;	/// Metr. Klasse

		string[] paramNames = new string[]
		{
			Strings.Producer,
			Strings.Qn,
			Strings.Approval_info,
			Strings.Metrological_class,
		};
		public string ParamName(int i) { return paramNames[i]; }

		public string ToString(int i)
		{
			switch (i)
			{
				case 0: return Producer;
				case 1: return Qn.ToString();
				case 2: return ApprovalInfo;
				case 3: return MetrologicalClass;
				default: return string.Empty;
			}
		}

		public void UpdateParam(int i, string strValue)
		{
			switch (i)
			{
				case 0: Producer = strValue; return;
				case 1: Qn = Utils.ParseUFloat(strValue); return;
				case 2: ApprovalInfo = strValue; return;
				case 3: MetrologicalClass = strValue; return;
				default: return;
			}
		}

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

			float dummy;
			switch (i)
			{
				case 1:
					if (Utils.TryParseUFloat(strValue, out dummy)) return true;
					break;
				case 0:
				case 2:
				case 3:
					return true;
				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.ComponentProcedure ProcedureParamsEntity { get { return procParamsEntity; } }
		Entities.ComponentProcedure procParamsEntity;

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

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

		/// Parameterless constructor
		public ProcParams()
		{
			Producer = "";
			Qn = 2.5f;
			ApprovalInfo = "";
			MetrologicalClass = "A";
		}

		public ProcParams(Entities.ComponentProcedure procParamsEntity, string componentName, Entities.Procedure test)
			: this()
		{
			this.procParamsEntity = procParamsEntity;
			this.componentName = componentName;
			this.test = test;
		}

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

				/// Create and return the ComponentProcedure entity
				TBF.Entities.ComponentProcedure entity = new TBF.Entities.ComponentProcedure();
				entity.CmpntName = component.Cfg.Name;
				entity.Parameters = writer.ToString();
				entity.Procedure = procedure;
				return entity;
			}
		}

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

			}
		}

		public static IParamsProvider GetProcedureParams(Entities.ComponentProcedure procParamsEntity)
		{
			if (procParamsEntity == null) return new ProcParams();

			ProcParams procParams;
			try
			{
				procParams = (ProcParams)(new XmlSerializer(typeof(ProcParams)))
					.Deserialize(new StringReader(procParamsEntity.Parameters));
			}
			catch
			{
				procParams = new ProcParams();
			}
			procParams.procParamsEntity = procParamsEntity;
			procParams.componentName = procParamsEntity.CmpntName;
			procParams.test = procParamsEntity.Procedure;
			return procParams;
		}

		#endregion
	}
}