using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace fis.media.Library.Players
{
    public class VideoFrameData : IDisposable
    {
        private readonly Action<object> _dispose;
        private bool _disposed;

        public int Width { get; set; }

        public int Height { get; set; }

        public byte[] Data { get; set; }

        public object? ImageData { get; set; }

        public string? Key { get; set; }

        public VideoFrameData(int width, int height, byte[] data, Action<object> dispose = null!)
        {
            Width = width;
            Height = height;
            Data = data;
            _dispose = dispose;
        }

        public string ToBase64()
        {
           return Convert.ToBase64String(Data, 0, Data.Length);
        }

        ~VideoFrameData()
        {
            Dispose();
        }
        public void Dispose()
        {
            if (!_disposed)
            {
                _dispose?.Invoke(ImageData!);
                _disposed = true;
            }
        }
    }

    public class ImageDataBuffer : IDisposable
    {
        private uint _width;
        private uint _height;
        private int _dataSize;
        private byte[]? _buffer;

        public void SetBufferSize(uint width, uint height, int dataSize)
        {
            if (width != _width || height != _height || dataSize != _dataSize)
            {
                _buffer = new byte[width * height * dataSize];
                _width = width;
                _height = height;
                _dataSize = dataSize;
            }
        }

        public void SetBuffer(byte[] image)
        {
            if (_buffer != null)
            {
                _buffer = image;
            }
        }

        public byte[]? GetBuffer()
        {
            return _buffer;
        }

        public void Dispose()
        {
            _buffer = null;
        }
    }

    public class RemoteVideoFrameData
    {
        public string UserId { get; }

        public VideoFrameData? Data { get; set; }

        public ImageDataBuffer ImageDataBuffer { get; }

        public RemoteVideoFrameData(string userId)
        {
            UserId = userId;
            ImageDataBuffer = new ImageDataBuffer();
        }
    }

    public class LocalPreviewVideoFrameData
    {
        public string UserId { get; }

        public VideoFrameData? Data { get; set; }

        public LocalPreviewVideoFrameData(string userId)
        {
            UserId = userId;
        }
    }
}