using System;
using System.IO;
using System.Text;

namespace fis.Vid
{
    public class VinnoStreamWriter
    {
        private readonly Stream _stream;

        public VinnoStreamWriter(Stream stream)
        {
            _stream = stream;
        }

        /// <summary>
        /// Write a string to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteString(string value)
        {
            var data = Encoding.Unicode.GetBytes(value);
            WriteInt(data.Length);
            _stream.Write(data, 0, data.Length);
        }

        /// <summary>
        /// Write a int32 value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteInt(int value)
        {
            _stream.Write(BitConverter.GetBytes(value), 0, sizeof(int));
        }


        /// <summary>
        /// Write a short value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteShort(short value)
        {
            _stream.Write(BitConverter.GetBytes(value), 0, sizeof(short));
        }

        /// <summary>
        /// Write a int64 value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteLong(long value)
        {
            _stream.Write(BitConverter.GetBytes(value), 0, sizeof(long));
        }


        /// <summary>
        /// Write a float value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteFloat(float value)
        {
            _stream.Write(BitConverter.GetBytes(value), 0, sizeof(float));
        }

        /// <summary>
        /// Write a double value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteDouble(double value)
        {
            _stream.Write(BitConverter.GetBytes(value), 0, sizeof(double));
        }

        /// <summary>
        /// Write a bool value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteBool(bool value)
        {
            _stream.Write(BitConverter.GetBytes(value), 0, sizeof(bool));
        }

        /// <summary>
        /// Write a byte value to stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteByte(byte value)
        {
            _stream.WriteByte(value);
        }

        /// <summary>
        /// Write a array in to stream.
        /// </summary>
        public void WriteBytes(byte[] value)
        {
            WriteInt(value.Length);
            _stream.Write(value, 0, value.Length);
        }

        /// <summary>
        /// Write long array into stream.
        /// </summary>
        /// <param name="value"></param>
        public void WriteLongs(long[] value)
        {
            var data = new byte[value.Length * sizeof(long)];
            Buffer.BlockCopy(value, 0, data, 0, data.Length);
            WriteBytes(data);
        }
    }
}