/* Copyright 2017 Diversified Technical Systems
*/
using System;
using System.Collections.Generic;
using System.Linq;

namespace DatabaseImport
{
    /// <summary>
    /// this class will probably become an abstract base class in the future but for now since we only have
    /// summed realtime channels, we can be a little less formal
    /// </summary>
    public class CalculatedValueClass
    {
        public CalculatedValueClass(System.Data.DataRow dr)
        {
            var fields = Enum.GetValues(typeof(DbOperations.CalculatedChannels.Fields))
                .Cast<DbOperations.CalculatedChannels.Fields>().ToArray();

            foreach (var field in fields)
            {
                var o = dr[field.ToString()];
                if (DBNull.Value.Equals(o)) { continue; }
                switch (field)
                {
                    case DbOperations.CalculatedChannels.Fields.TestSetupName:
                        TestSetupName = Convert.ToString(o);
                        break;
                    case DbOperations.CalculatedChannels.Fields.Operation:
                        Operation = (Operations)Convert.ToInt32(o);
                        break;
                    case DbOperations.CalculatedChannels.Fields.InputChannelIds:
                        InputChannelIdsBlob = (byte[])o;
                        break;
                    case DbOperations.CalculatedChannels.Fields.Id:
                        Id = Convert.ToInt32(o);
                        break;
                    case DbOperations.CalculatedChannels.Fields.CFCForOutput:
                        ChannelFilterClassForOutput = Convert.ToString(o);
                        break;
                    case DbOperations.CalculatedChannels.Fields.CFCForInputChannels:
                        CFCForInputChannels = Convert.ToString(o);
                        break;
                    case DbOperations.CalculatedChannels.Fields.CCName:
                        Name = Convert.ToString(o);
                        break;
                    case DbOperations.CalculatedChannels.Fields.CalculatedChannelValueCode:
                        CalculatedValueCode = Convert.ToString(o);
                        break;
                }
            }
        }

        public int Id { get; set; } = -1;

        public enum Operations
        {
            SUM = 1,
            AVERAGE = 2,
            IRTRACC3D = 3,
            IRTRACC3D_ABDOMEN = 4,
            IRTRACC3D_LOWERTHORAX = 5
        }

        public Operations Operation { get; set; } = Operations.SUM;

        public string CalculatedValueCode { get; set; } = "???????????????X";

        private List<string> _inputChannelIds = new List<string>();
        public string[] InputChannelIds
        {
            get => _inputChannelIds.ToArray();
            set => _inputChannelIds = new List<string>(value);
        }
        public byte[] InputChannelIdsBlob
        {
            get
            {
                var text = string.Join(System.Globalization.CultureInfo.InvariantCulture.TextInfo.ListSeparator, InputChannelIds);
                return System.Text.Encoding.UTF8.GetBytes(text);
            }
            set
            {
                _inputChannelIds.Clear();
                var text = System.Text.Encoding.UTF8.GetString(value);
                InputChannelIds = text.Split(new[] { System.Globalization.CultureInfo.InvariantCulture.TextInfo.ListSeparator }, StringSplitOptions.None);
            }
        }

        public string CFCForInputChannels { get; set; } = "";

        public string ChannelFilterClassForOutput { get; set; } = "";

        public string TestSetupName { get; set; }

        public string Name { get; set; }
    }
}