using System;
using System.Linq;
using System.Runtime.Serialization;
using System.Web.Hosting;
using Orchard.Environment;
using Orchard.Localization;

namespace Orchard.Commands {
    public class OrchardCommandHostRetryException : OrchardCoreException {
        public OrchardCommandHostRetryException(LocalizedString message)
            : base(message) {
        }

        public OrchardCommandHostRetryException(LocalizedString message, Exception innerException)
            : base(message, innerException) {
        }

        protected OrchardCommandHostRetryException(SerializationInfo info, StreamingContext context)
            : base(info, context) {
        }
    }

    public class CommandHostEnvironment : IHostEnvironment {
        public CommandHostEnvironment() {
            T = NullLocalizer.Instance;
        }

        public Localizer T { get; set; }

        public bool IsFullTrust {
            get { return AppDomain.CurrentDomain.IsFullyTrusted; }
        }

        public string MapPath(string virtualPath) {
            return HostingEnvironment.MapPath(virtualPath);
        }

        public bool IsAssemblyLoaded(string name) {
            return AppDomain.CurrentDomain.GetAssemblies().Any(a => a.GetName().Name == name);
        }

        public void RestartAppDomain() {
            ResetSiteCompilation();
        }

        public void ResetSiteCompilation() {
            throw new OrchardCommandHostRetryException(T("A change of configuration requires the session to be restarted."));
        }
    }
}