ConversionState.cs

using System;
using System.IO;
using Waher.Events;
using Waher.Script;
 
namespace Waher.Content
{
    public delegate bool TryGetLocalResourceFileName(string Resource, string Host, out string FileName);
 
    public class ConversionState
    {
        private readonly TryGetLocalResourceFileName tryGetLocalResourceFileName;
 
        public ConversionState(string FromContentType, Stream From, string FromFileName, string LocalResourceName, string URL,
            string ToContentType, Stream To, Variables Session, ICodecProgress Progress, IResourceMap ResourceMap,
            TryGetLocalResourceFileName TryGetLocalResourceFileName, params string[] PossibleContentTypes)
        {
            this.FromContentType = FromContentType;
            this.From = From;
            this.FromFileName = FromFileName;
            this.LocalResourceName = LocalResourceName;
            this.URL = URL;
            this.ToContentType = ToContentType;
            this.To = To;
            this.Session = Session;
            this.Progress = Progress;
            this.PossibleContentTypes = PossibleContentTypes;
            this.ResourceMap = ResourceMap;
            this.tryGetLocalResourceFileName = TryGetLocalResourceFileName;
        }
 
        public string FromContentType { get; }
 
        public Stream From { get; }
 
        public string FromFileName { get; set; }
 
        public string LocalResourceName { get; set; }
 
        public string URL { get; }
 
        public string ToContentType { get; set; }
 
        public Stream To { get; }
 
        public Variables Session { get; }
 
        public ICodecProgress Progress { get; }
 
        public IResourceMap ResourceMap { get; }
 
        public string[] PossibleContentTypes { get; }
 
        public Exception Error { get; set; }
 
        public bool HasError => !(this.Error is null);
 
        public bool TryGetLocalResourceFileName(string Resource, string Host, out string FileName)
        {
            if (!(this.tryGetLocalResourceFileName is null))
            {
                try
                {
                    return this.tryGetLocalResourceFileName(Resource, Host, out FileName);
                }
                catch (Exception ex)
                {
                    Log.Exception(ex);
                }
            }
 
            FileName = null;
            return false;
        }
    }
}