public async Task StartAsync(CancellationToken cancellationToken)
{
using IServiceScope scope = _serviceScopeFactory.CreateScope();
await using TvContext dbContext = scope.ServiceProvider.GetRequiredService <TvContext>();
if (Directory.Exists(FileSystemLayout.LegacyImageCacheFolder))
{
_logger.LogInformation("Migrating channel logos from legacy image cache folder");
List <string> logos = await dbContext.Channels
.SelectMany(c => c.Artwork)
.Where(a => a.ArtworkKind == ArtworkKind.Logo)
.Map(a => a.Path)
.ToListAsync(cancellationToken);
ILocalFileSystem localFileSystem = scope.ServiceProvider.GetRequiredService <ILocalFileSystem>();
foreach (string logo in logos)
{
string legacyPath = Path.Combine(FileSystemLayout.LegacyImageCacheFolder, logo);
if (File.Exists(legacyPath))
{
string subfolder = logo.Substring(0, 2);
string newPath = Path.Combine(FileSystemLayout.LogoCacheFolder, subfolder, logo);
await localFileSystem.CopyFile(legacyPath, newPath);
}
}
_logger.LogInformation("Deleting legacy image cache folder");
Directory.Delete(FileSystemLayout.LegacyImageCacheFolder, true);
}
}
private static Unit CleanCache(TvContext context, IServiceProvider provider)
{
if (Directory.Exists(FileSystemLayout.LegacyImageCacheFolder))
{
ILogger <Program> logger = provider.GetRequiredService <ILogger <Program> >();
logger.LogInformation("Migrating channel logos from legacy image cache folder");
var logos = context.Channels
.SelectMany(c => c.Artwork)
.Where(a => a.ArtworkKind == ArtworkKind.Logo)
.Map(a => a.Path)
.ToList();
ILocalFileSystem localFileSystem = provider.GetRequiredService <ILocalFileSystem>();
foreach (string logo in logos)
{
string legacyPath = Path.Combine(FileSystemLayout.LegacyImageCacheFolder, logo);
if (File.Exists(legacyPath))
{
string subfolder = logo.Substring(0, 2);
string newPath = Path.Combine(FileSystemLayout.LogoCacheFolder, subfolder, logo);
localFileSystem.CopyFile(legacyPath, newPath);
}
}
logger.LogInformation("Deleting legacy image cache folder");
Directory.Delete(FileSystemLayout.LegacyImageCacheFolder, true);
}
return(Unit.Default);
}