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


namespace fis.Vid.Visuals
{
    public class Vinno2DVisual:VinnoVisual
    {
        /// <summary>
        /// Gets all LogicalCoordinates of this visual.
        /// </summary>
        public Dictionary<VinnoVisualAreaType, VinnoLogicalCoordinate> LogicalCoordinates { get; }

        /// <summary>
        /// Gets all PhysicalCoordinates of this visual.
        /// </summary>
        public Dictionary<VinnoVisualAreaType, VinnoPhysicalCoordinate> PhysicalCoordinates { get; }


        public Vinno2DVisual()
        {
            VisualType = VinnoVisualType.V2D;
            LogicalCoordinates = new Dictionary<VinnoVisualAreaType, VinnoLogicalCoordinate>();
            PhysicalCoordinates = new Dictionary<VinnoVisualAreaType, VinnoPhysicalCoordinate>();
        }


        public override byte[] ToBytes()
        {
            var baseData = base.ToBytes();
            byte[] result;
            using (var stream = new MemoryStream())
            {
                stream.Write(baseData,0, baseData.Length);
                var writer = new VinnoStreamWriter(stream);
                writer.WriteByte((byte)PhysicalCoordinates.Count);
                foreach (var key in PhysicalCoordinates.Keys)
                {
                    writer.WriteByte((byte)key);
                    writer.WriteBytes(PhysicalCoordinates[key].ToBytes());
                }
                writer.WriteByte((byte)LogicalCoordinates.Count);
                foreach (var key in LogicalCoordinates.Keys)
                {
                    writer.WriteByte((byte)key);
                    writer.WriteBytes(LogicalCoordinates[key].ToBytes());
                }
                result = stream.ToArray();
            }
            return result;
        }


        public new static VinnoVisual FromBytes(byte[] bytes)
        {
            Vinno2DVisual result = null;
            using (var stream = new MemoryStream(bytes))
            {
                stream.Position = 0;
                var reader = new VinnoStreamReader(stream);
                var visualType = (VinnoVisualType)reader.ReadByte();
                var displayMode = (VinnoDisplayMode)reader.ReadByte();
                if (visualType == VinnoVisualType.V2D)
                {
                    var indicator = (VinnoVisualIndicator) reader.ReadByte();
                    var activeModeType = (VinnoModeType)reader.ReadByte();
                    var modeCount = reader.ReadByte();
                    var modes = new List<VinnoMode>();
                    for (var i = 0; i < modeCount; i++)
                    {
                        var mode = VinnoMode.FromBytes(reader.ReadBytes());
                        modes.Add(mode);
                    }
                    result = new Vinno2DVisual {Indicator = indicator };
                    foreach (var mode in modes)
                    {
                        result.Modes.Add(mode);
                    }
                    result.ActiveModeType = activeModeType;

                    var physicalCoordinateCount = reader.ReadByte();
                    var physicalCoordinates = new Dictionary<VinnoVisualAreaType, VinnoPhysicalCoordinate>();
                    for (var i = 0; i < physicalCoordinateCount; i++)
                    {
                        var visualAreaType = (VinnoVisualAreaType)reader.ReadByte();
                        var physicalCoordinate = VinnoPhysicalCoordinate.FromBytes(reader.ReadBytes());
                        physicalCoordinates.Add(visualAreaType, physicalCoordinate);
                    }

                    var logicalCoordinateCount = reader.ReadByte();
                    var logicalCoordinates = new Dictionary<VinnoVisualAreaType, VinnoLogicalCoordinate>();
                    for (var i = 0; i < logicalCoordinateCount; i++)
                    {
                        var visualAreaType = (VinnoVisualAreaType)reader.ReadByte();
                        var logicalCoordinate = VinnoLogicalCoordinate.FromBytes(reader.ReadBytes());
                        logicalCoordinates.Add(visualAreaType, logicalCoordinate);
                    }
                    foreach (var key in physicalCoordinates.Keys)
                    {
                        result.PhysicalCoordinates.Add(key, physicalCoordinates[key]);
                    }
                    foreach (var key in logicalCoordinates.Keys)
                    {
                        result.LogicalCoordinates.Add(key, logicalCoordinates[key]);
                    }
                    result.DisplayMode = displayMode;
                }
            }
            return result;
        }

    }
}