using skyscraper5.Skyscraper.Scraper;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace skyscraper5.UI.StreamAcquisition
{
	public abstract class StreamSource
	{
		protected abstract void StartSourceEx();

		private bool started;
		private Thread thread;
		protected SkyscraperContext context;
		protected bool stopRequested;

		public virtual string GetSourceName()
		{
			return this.GetType().Name;
		}

		public StreamSourceState State { get; protected set; }

		public Thread StartSource(SkyscraperContext context)
		{
			if (started)
				throw new InvalidOperationException("already started");

			this.context = context;
			this.thread = new Thread(StartSourceEx);
			this.thread.Priority = ThreadPriority.Lowest;
			this.thread.Name = String.Format("Skyscraper5.UI Source: {0}", GetSourceName());
			started = true;
			this.thread.Start();
			this.State = StreamSourceState.Running;
			return this.thread;
		}

		public void StopSource()
		{
			stopRequested = true;
		}
	}

	public enum StreamSourceState
	{
		Ready,
		Running,
		Crashed,
		Finished,
		StoppedByUser
	}
}