private static async Task <string> GetJsonDataAsync(string url, MainThreadMarshaller uiMarshaller)
{
try
{
Logger.Instance.LogMessageToFile("Searching Reddit for a wallpaper.", LogLevel.Information);
using (var wc = HelperMethods.CreateWebClient())
{
return(await wc.DownloadStringTaskAsync(url).ConfigureAwait(false));
}
}
catch (WebException ex)
{
uiMarshaller.LogFailure(ex.Message, $"Reddit server error: {ex.Message}",
LogLevel.Error);
throw;
}
catch (Exception ex)
{
uiMarshaller.LogFailure("Error downloading search results.",
$"Error downloading search results: {ex.Message}", LogLevel.Error);
throw;
}
}
// TODO refactor
//======================================================================
// Search for a wallpaper
//======================================================================
public async Task <bool> SearchForWallpaperAsync()
{
Logger.Instance.LogMessageToFile("Looking for a wallpaper.", LogLevel.Information);
if (MaxRetriesExceeded())
{
return(true);
}
_uiMarshaller.UpdateStatus("Finding New Wallpaper");
try
{
var url = GetRedditSearchUrl(_random, _uiMarshaller);
var jsonData = await GetJsonDataAsync(url, _uiMarshaller).ConfigureAwait(false);
try
{
if (jsonData.Any())
{
var redditResult = GetRedditResult(JToken.Parse(jsonData));
JToken token = null;
try
{
foreach (var toke in redditResult.Reverse())
{
token = toke;
}
if (token == null)
{
if (redditResult.HasValues)
{
var randIndex = _random.Next(0, redditResult.Count() - 1);
token = redditResult.ElementAt(randIndex);
}
else
{
++_noResultCount;
_uiMarshaller.UpdateStatus("No results found, searching again.");
Logger.Instance.LogMessageToFile("No search results, trying to change wallpaper again.", LogLevel.Information);
return(false);
}
}
if ((WallpaperGrabType)Settings.Default.wallpaperGrabType == WallpaperGrabType.Random)
{
token = redditResult.ElementAt(_random.Next(0, redditResult.Count() - 1));
}
_uiMarshaller.SetCurrentThread($"http://reddit.com{token["data"]["permalink"]}");
if (!await ChangeWallpaperIfValidImageAsync(token).ConfigureAwait(false))
{
return(true);
}
}
catch (InvalidOperationException)
{
_uiMarshaller.LogFailure("Your search query is bringing up no results.",
"No results from the search query.");
}
}
else
{
_uiMarshaller.LogFailure("Subreddit Probably Doesn't Exist",
"Subreddit probably does not exist.");
_noResultCount++;
return(true);
}
}
catch (JsonReaderException ex)
{
_uiMarshaller.LogFailure($"Unexpected error: {ex.Message}",
$"Unexpected error: {ex.Message}", LogLevel.Error);
}
}
catch { }
return(true);
}
