using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;

namespace fis.Vid
{
    /// <summary>
    /// vid extended data
    /// </summary>
    public class VidExtendedData
    {
        /// <summary>
        /// version tag
        /// </summary>
        public static VidTag VersionTag => new VidTag("Vid", "Version");
        /// <summary>
        /// version num
        /// </summary>
        public static VidIntegerValueElement VersionValue => new VidIntegerValueElement(1);
        /// <summary>
        /// vid data dict 
        /// </summary>
        public Dictionary<VidTag, IVidValue> Data { get; set; }

        public VidExtendedData(Dictionary<VidTag, IVidValue> data)
        {
            Data = data;
            Add(VersionTag, VersionValue);
        }

        /// <summary>
        /// Add item
        /// </summary>
        /// <param name="key">key</param>
        /// <param name="value">value</param>
        public void Add(VidTag key, IVidValue value)
        {
            Data.Add(key, value);
        }

        /// <summary>
        /// Object to bytes.
        /// </summary>
        /// <returns></returns>
        public byte[] ToBytes()
        {
            using (var stream = new MemoryStream())
            {
                var writer = new VinnoStreamWriter(stream);
                writer.WriteInt(Data.Count);
                for (int cursor = 0; cursor < Data.Count; cursor++)
                {
                    VidTag key = Data.ElementAt(cursor).Key;
                    var value = Data.ElementAt(cursor).Value;
                    var keys = $"{key.Group},{key.Element},{value.Type}";
                    writer.WriteString(keys);
                    var values = $"{value.GetValue()}";
                    writer.WriteString(values);
                }

                return stream.ToArray();
            }
        }

        /// <summary>
        /// Parse from bytes to object.
        /// </summary>
        /// <param name="data"></param>
        /// <returns></returns>
        public static VidExtendedData FromBytes(byte[] data)
        {
            try
            {
                if (data != null && data.Any())
                {
                    using (var stream = new MemoryStream(data))
                    {
                        stream.Position = 0;
                        var reader = new VinnoStreamReader(stream);
                        var count = reader.ReadInt();
                        if (count > 0 && count <= data.Length)
                        {
                            var vidExtendedData = new VidExtendedData(new Dictionary<VidTag, IVidValue>());
                            for (int cursor = 0; cursor < count; cursor++)
                            {
                                var key = reader.ReadString();
                                var keys = key.Split(',');
                                if (keys.Length != 3)
                                {
                                    vidExtendedData = null;
                                    break;
                                }
                                var vidTag = new VidTag(keys[0], keys[1]);
                                var value = reader.ReadString();
                                var valueType = (ValueType) Enum.Parse(typeof(ValueType), keys[2]);
                                IVidValue vidValue = null;
                                switch (valueType)
                                {
                                    case ValueType.String:
                                        vidValue = new VidStringValueElement(value);
                                        break;
                                    case ValueType.Double:
                                        vidValue = new VidDoubleValueElement(double.Parse(value));
                                        break;
                                    case ValueType.Float:
                                        vidValue = new VidFloatValueElement(float.Parse(value));
                                        break;
                                    case ValueType.Integer:
                                        vidValue = new VidIntegerValueElement(int.Parse(value));
                                        break;
                                    case ValueType.Long:
                                        vidValue = new VidLongValueElement(long.Parse(value));
                                        break;
                                    case ValueType.Uint:
                                        vidValue = new VidUintValueElement(uint.Parse(value));
                                        break;
                                    case ValueType.Ulong:
                                        vidValue = new VidUlongValueElement(ulong.Parse(value));
                                        break;
                                    case ValueType.Ushort:
                                        vidValue = new VidUshortValueElement(ushort.Parse(value));
                                        break;
                                    case ValueType.Byte:
                                        vidValue = new VidByteValueElement(byte.Parse(value));
                                        break;
                                    case ValueType.Short:
                                        vidValue = new VidShortValueElement(short.Parse(value));
                                        break;
                                }
                                vidExtendedData?.Add(vidTag, vidValue);
                            }

                            return vidExtendedData;
                        }
                    }
                }
            }
            catch (Exception e)
            {
            }
            return null;
        }
    }

    /// <summary>
    /// This is a const dictionary for tissue description which used in FLYINSONO
    /// Any questions for this dictionary, please contact the FLYINSONO team to confirm
    /// Be cautious about its reference, wrong reference will result in bugs here.
    /// </summary>
    public static class FISTissueCategory
    {
        /// <summary>
        /// This region is defined for old code, which already realized through old ways,not from this category
        /// If you want to do some refactor to suit current concept, please confirm that with FLYINSONO team, and the FLYINSONO team will make it work
        /// </summary>
        #region 
        /// <summary>
        /// The carotid group name to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string CarotidVidTagGroupName = "Carotid";

        /// <summary>
        /// The carotid element name for position to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string CarotidVidTagElementPostionName = "Position";

        /// <summary>
        /// The left carotid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string LeftCarotidName = "Left";

        /// <summary>
        /// The right carotid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string RightCarotidName = "Right";

        /// <summary>
        /// The 'top to bottom' carotid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string TopToBottomCarotidName = "TopToBottom";

        /// <summary>
        /// The 'bottom to top' carotid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string BottomToTopCarotidName = "BottomToTop";

        /// <summary>
        /// The breast group name to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string BreastVidTagVIDGroupName = "Breast";

        /// <summary>
        /// The breast element name for position to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string BreastVidTagElementPostionName = "Position";

        /// <summary>
        /// The left breast position value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string LeftBreastName = "Left";

        /// <summary>
        /// The right breast position value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string RightBreastName = "Right";

        /// <summary>
        /// The liver group name to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string LiverVidTagVIDGroupName = "Liver";

        /// <summary>
        /// The liver element name for position to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string LiverVidTagElementPostionName = "Position";

        /// <summary>
        /// The left lobe liver position value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string LeftLobeName = "LeftLobeName";

        /// <summary>
        /// The right lobe under liver position value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string RightLobeOfUnderName = "RightLobeOfUnder";

        /// <summary>
        /// The right lobe inter liver position value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string RightLobeOfInterName = "RightLobeOfInter";

        /// <summary>
        /// The breast element name for quadrant to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string BreastVidTagElementQuadrantName = "Quadrant";

        /// <summary>
        /// The breast quadrant 'outer upper' value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string BreastOuterUpperName = "OuterUpper";

        /// <summary>
        /// The breast quadrant 'inner upper' value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string BreastInnerUpperName = "InnerUpper";

        /// <summary>
        /// The breast quadrant 'outer lower' value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string BreastOuterLowerName = "OuterLower";

        /// <summary>
        /// The breast quadrant 'inner lower' value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string BreastInnerLowerName = "InnerLower";

        #endregion

        /// <summary>
        /// This region is defined for new coming tissue information, if you are adding the new ones, just reference code hear.
        /// </summary>
        #region
        /// <summary>
        /// The thyroid group name to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string ThyroidVIDGroupName = "Thyroid";

        /// <summary>
        /// The thyroid element name for position to create the <see cref="VidTag"/> type 
        /// </summary>
        public const string ThyroidVidTagElementPostionName = "Position";

        /// <summary>
        /// The left thyroid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string LeftThyroidName = "LeftThyroid";

        /// <summary>
        /// The middle thyroid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string MiddleThyroidName = "MiddleThyroid";

        /// <summary>
        /// The right thyroid value to create a string element  <see cref="VidStringValueElement"/> 
        /// </summary>
        public const string RightThyroidName = "RightThyroid";
        #endregion

        public const string Position = "Position";

    }


    /// <summary>
    /// vid tag 
    /// </summary>
    public class VidTag
    {

        public VidTag(string group, string element)
        {
            Group = group;
            Element = element;
        }
        /// <summary>
        /// vid group num
        /// </summary>
        public string Group { get; set; }
        /// <summary>
        /// vid element num
        /// </summary>
        public string Element { get; set; }
    }
    /// <summary>
    /// interface vid value
    /// </summary>
    public interface IVidValue
    {
        ValueType Type { get; }

        object GetValue();
    }
    /// <summary>
    /// vid value type
    /// </summary>
    public enum ValueType
    {
        String,
        Integer,
        Double,
        Float,
        Uint,
        Short,
        Ushort,
        Long,
        Ulong,
        Byte

    }
    /// <summary>
    /// abstract vid element
    /// </summary>
    /// <typeparam name="T"></typeparam>
    public abstract class VidValueElement<T> : IVidValue
    {
        public T Value { get; protected set; }

        protected VidValueElement(T value)
        {

        }

        public abstract ValueType Type { get; }

        public object GetValue()
        {
            return Value;
        }
    }
    /// <summary>
    /// Integer element for vid
    /// </summary>
    public class VidIntegerValueElement : VidValueElement<int>
    {

        public VidIntegerValueElement(int value) : base(value)
        {
            Value = value;
        }

        public override ValueType Type => ValueType.Integer;
    }
    /// <summary>
    /// string element for vid
    /// </summary>
    public class VidStringValueElement : VidValueElement<string>
    {


        public override ValueType Type => ValueType.String;

        public VidStringValueElement(string value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// double element for vid
    /// </summary>
    public class VidDoubleValueElement : VidValueElement<double>
    {


        public override ValueType Type => ValueType.Double;

        public VidDoubleValueElement(double value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// float element for vid
    /// </summary>
    public class VidFloatValueElement : VidValueElement<float>
    {
        public override ValueType Type => ValueType.Float;



        public VidFloatValueElement(float value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// Uint element for vid
    /// </summary>
    public class VidUintValueElement : VidValueElement<uint>
    {
        public override ValueType Type => ValueType.Uint;

        public VidUintValueElement(uint value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// short element for vid
    /// </summary>
    public class VidShortValueElement : VidValueElement<short>
    {
        public override ValueType Type => ValueType.Short;

        public VidShortValueElement(short value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// ushort element for vid
    /// </summary
    public class VidUshortValueElement : VidValueElement<ushort>
    {
        public override ValueType Type => ValueType.Ushort;

        public VidUshortValueElement(ushort value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// long element for vid
    /// </summary
    public class VidLongValueElement : VidValueElement<long>
    {
        public override ValueType Type => ValueType.Long;

        public VidLongValueElement(long value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// ulong element for vid
    /// </summary
    public class VidUlongValueElement : VidValueElement<ulong>
    {
        public override ValueType Type => ValueType.Ulong;

        public VidUlongValueElement(ulong value) : base(value)
        {
            Value = value;
        }
    }
    /// <summary>
    /// byte element for vid
    /// </summary
    public class VidByteValueElement : VidValueElement<byte>
    {
        public override ValueType Type => ValueType.Byte;

        public VidByteValueElement(byte value) : base(value)
        {
            Value = value;
        }
    }
}