///
/// Copyright (c) 2016 Sensus Metering Systems
///
using System;
using System.Collections.Generic;
using System.Linq;

namespace Results.Entities
{
    /// <summary>
    /// Test, consisting of one or more repetitions of the test 'SingleTest'.
    /// </summary>
	public class TestData
    {
        public virtual int    Id			{ get; protected set; }
        public virtual string Name			{ get; set; }
		public virtual int    Repeats		{ get; set; }
		public virtual double Qfrom         { get; set; }	/// [m3/h] flow range low limit
		public virtual double Qto			{ get; set; }	/// [m3/h] flow range high limit
		public virtual double TargetVolume	{ get; set; }	/// [l] target test volume
		public virtual double TargetTime	{ get; set; }	/// [s] target test time
		public virtual string Method		{ get; set; }
		public virtual double ErrLimLo		{ get; set; }	/// [%] (usually < 0)
		public virtual double ErrLimHi		{ get; set; }	/// [%] (usually > 0)
		public virtual double Uncertainty	{ get; set; }	///	[%] makes error limits tighter: 0 <= Uncertainty <= abs(ErrLimXx)
		public virtual bool   Evaluate      { get; set; }


		protected TestData()
        {
			Name = string.Empty;
			Method = string.Empty;
		}

		public TestData(Config.Entities.Test test)
			: this()
		{
			Name         = test.Name;
			Repeats      = test.Repeats;
			Qfrom        = (double)test.Qfrom;
			Qto          = (double)test.Qto;
			TargetVolume = (double)test.Volume;
			TargetTime   = (double)test.TstTime;
			Method       = test.Method;
			ErrLimLo     = (double)test.ErrLimLo;
			ErrLimHi     = (double)test.ErrLimHi;
			Uncertainty  = (double)test.Uncertainty;
			Evaluate     = test.Evaluate;
		}


		/// <summary>
		/// Method to compare the content of two entities
		/// </summary>
		/// <param name="wmd">Second entity to compare with</param>
		/// <returns>first = two entities are equal (except of Id)</returns>
		public virtual bool Equals(TestData td)
		{
			if (!Name.Equals(td.Name)) return false;
			if (Repeats != td.Repeats) return false;
			if (Qfrom != td.Qfrom) return false;
			if (Qto != td.Qto) return false;
			if (TargetVolume != td.TargetVolume) return false;
			if (TargetTime != td.TargetTime) return false;
			if (!Method.Equals(td.Method)) return false;
			if (ErrLimLo != td.ErrLimLo) return false;
			if (ErrLimHi != td.ErrLimHi) return false;
			if (Uncertainty != td.Uncertainty) return false;
			if (Evaluate != td.Evaluate) return false;

			return true;
		}


		/// <summary>
		/// Adds an item to the list if it does not occur there
		/// </summary>
		/// <param name="list">List of items</param>
		/// <param name="item">Item to add to the list or find there</param>
		/// <returns>Item from the list (existing or added)</returns>
		public static TestData UpdateList(IList<TestData> list, TestData item)
		{
			if (item == null) return null;		/// Null item is not stored in the list

			TestData found = list.FirstOrDefault<TestData>(x => x.Equals(item));

			if (found != null) return found;	/// The same item found in the list, The found item returned

			list.Add(item);						/// Item not fund in the list, it is added to the list
			return item;
		}
    }
}