using System.Drawing;
using CefSharp;

namespace prBrowser
{
	internal class DownloadHandler : IDownloadHandler
	{
		private readonly MainForm myForm;

		public DownloadHandler(MainForm form)
		{
			myForm = form;
		}

		public void OnBeforeDownload(IWebBrowser webBrowser, IBrowser browser, DownloadItem item, IBeforeDownloadCallback callback)
		{
			if (callback.IsDisposed)
			{
				return;
			}
			using (callback)
			{
				myForm.UpdateDownloadItem(item);
				myForm.CurTab.Browser.BackColor = Color.White;
				string path = myForm.CalcDownloadPath(item);
				if (path == null)
				{
					callback.Continue(path, showDialog: false);
					return;
				}
				myForm.OpenDownloadsTab();
				callback.Continue(path, showDialog: true);
			}
		}

		public void OnDownloadUpdated(IWebBrowser webBrowser, IBrowser browser, DownloadItem downloadItem, IDownloadItemCallback callback)
		{
			myForm.UpdateDownloadItem(downloadItem);
			if (downloadItem.IsInProgress && myForm.CancelRequests.Contains(downloadItem.Id))
			{
				callback.Cancel();
			}
		}
	}
}