using Newtonsoft.Json;
using System;
using System.Collections.Generic;
using System.Collections.Specialized;
using System.ComponentModel.DataAnnotations.Schema;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Tango.Core;

namespace Tango.BL.Entities
{
    public class RmlExtensionTestResult : RmlExtensionTestResultBase
    {
        [NotMapped]
        [JsonIgnore]
        public TensileResult WhiteColor { get; set; }


        public RmlExtensionTestResult()
        {

        }

        protected override void OnTensileResultsChanged(SynchronizedObservableCollection<TensileResult> tensileresults)
        {
            base.OnTensileResultsChanged(tensileresults);
            if (TensileResults != null)
            {
                TensileResults.CollectionChanged -= OnTensileResultsCollectionChanged;
                TensileResults.CollectionChanged += OnTensileResultsCollectionChanged;
                AddEventsOnUpdateCollection();
            }
        }

        private void OnTensileResultsCollectionChanged(object sender, NotifyCollectionChangedEventArgs e)
        {
            if (e.Action == NotifyCollectionChangedAction.Add)
            {
                AddEventsOnUpdateCollection();
            }
        }

        private void AddEventsOnUpdateCollection()
        {
            foreach (var result in TensileResults)
            {
                if (result.IsWhiteColor)
                {
                    WhiteColor = result;
                    WhiteColor.MaxLoadChanged -= WhiteColor_MaxLoadChanged;
                    WhiteColor.MaxLoadChanged += WhiteColor_MaxLoadChanged;
                    WhiteColor.StrainMaxLoadChanged -= WhiteColor_StrainMaxLoadChanged;
                    WhiteColor.StrainMaxLoadChanged += WhiteColor_StrainMaxLoadChanged;
                }

                else
                {
                    result.MaxLoadChanged -= Result_MaxLoadChanged;
                    result.MaxLoadChanged += Result_MaxLoadChanged;
                    result.StrainMaxLoadChanged -= Result_StrainMaxLoadChanged;
                    result.StrainMaxLoadChanged += Result_StrainMaxLoadChanged;
                }
            }
        }

        private void WhiteColor_MaxLoadChanged(object sender, double? e)
        {
            foreach (var result in TensileResults)
            {
                if (WhiteColor == null || WhiteColor.MaxLoad == 0)
                    result.PercentChangeLoad = 0;
                else if (!result.IsWhiteColor)
                    result.PercentChangeLoad = 100 - ((result.MaxLoad * 100) / WhiteColor.MaxLoad);
            }

        }

        private void WhiteColor_StrainMaxLoadChanged(object sender, double? e)
        {
            foreach (var result in TensileResults)
            {
                if (WhiteColor == null || WhiteColor.StrainMaxLoad == 0)
                    result.PercentChangeStrain = 0;
                else if (!result.IsWhiteColor)
                    result.PercentChangeStrain = 100 - ((result.StrainMaxLoad * 100) / WhiteColor.StrainMaxLoad);
            }
        }


        private void Result_MaxLoadChanged(object sender, double? e)
        {
            if (sender is TensileResult)
            {
                TensileResult result = sender as TensileResult;
                if (WhiteColor == null || WhiteColor.MaxLoad == 0)
                    result.PercentChangeLoad = 0;
                else
                    result.PercentChangeLoad = 100 - ((result.MaxLoad * 100) / WhiteColor.MaxLoad);
            }
        }

        private void Result_StrainMaxLoadChanged(object sender, double? e)
        {
            if (sender is TensileResult)
            {
                TensileResult result = sender as TensileResult;
                if (WhiteColor == null || WhiteColor.StrainMaxLoad == 0)
                    result.PercentChangeStrain = 0;
                else
                    result.PercentChangeStrain = 100 - ((result.StrainMaxLoad * 100) / WhiteColor.StrainMaxLoad);
            }
        }
    }
}