using DTS.Common.Utilities.Logging;
using Microsoft.Practices.Prism.Events;
using Microsoft.Practices.ServiceLocation;
using System;

namespace DTS.Common.Events
{
    /// <summary>
    /// Event to inform app that it should mark itself busy or available
    /// </summary>
    /// <remarks>
    ///  
    /// </remarks>
    public class PageErrorEvent : CompositePresentationEvent<PageErrorArg> 
    {
        /// <summary>
        /// surfaces an error to the application, if applicable
        /// http://manuscript.dts.local/f/cases/28312/Surface-Read-does-not-match-write-to-user
        /// </summary>
        /// <param name="msg"></param>
        public static void SurfaceApplicationError(string msg)
        {
            try
            {
                var eventAggregator = ServiceLocator.Current.GetInstance<IEventAggregator>();
                eventAggregator.GetEvent<PageErrorEvent>().Publish(new PageErrorArg(new[] { msg }, null));
            }
            catch (Exception ex)
            {
                APILogger.Log(ex);
            }
        }
    }

    public class PageErrorArg
    {
        public string [] Errors { get; }
        public object Page { get; }
        public bool Handled { get; set; }
        public PageErrorArg(string[] errors, object page)
        {
            Errors = errors;
            Page = page;
        }
    }
}