CssxDecoder.cs

using System;
using System.Collections.Generic;
using System.Threading.Tasks;
using Waher.Content;
using Waher.Runtime.Inventory;
using Waher.Runtime.IO;
 
namespace Waher.IoTGateway.Cssx
{
    public class CssxDecoder : IContentDecoder
    {
        public CssxDecoder()
        {
        }
 
        public const string DefaultContentType = "text/x-cssx";
 
        public static readonly string[] CssxContentTypes = new string[] { DefaultContentType };
 
        public static readonly string[] CssxFileExtensions = new string[] { "cssx" };
 
        public string[] ContentTypes => CssxContentTypes;
 
        public string[] FileExtensions => CssxFileExtensions;
 
        public bool Decodes(string ContentType, out Grade Grade)
        {
            if (ContentType == DefaultContentType)
            {
                Grade = Grade.Excellent;
                return true;
            }
            else
            {
                Grade = Grade.NotAtAll;
                return false;
            }
        }
 
        public Task<ContentResponse> DecodeAsync(string ContentType, byte[] Data, System.Text.Encoding Encoding, 
            KeyValuePair<string, string>[] Fields, Uri BaseUri, ICodecProgress Progress)
        {
            return Task.FromResult(new ContentResponse(ContentType, Strings.GetString(Data, Encoding), Data));
        }
 
        public bool TryGetContentType(string FileExtension, out string ContentType)
        {
            switch (FileExtension.ToLower())
            {
                case "cssx":
                    ContentType = DefaultContentType;
                    return true;
 
                default:
                    ContentType = string.Empty;
                    return false;
            }
        }
 
        public bool TryGetFileExtension(string ContentType, out string FileExtension)
        {
            switch (ContentType.ToLower())
            {
                case DefaultContentType:
                    FileExtension = "cssx";
                    return true;
 
                default:
                    FileExtension = string.Empty;
                    return false;
            }
        }
 
    }
}