Exemplo n.º 1
0
        public async Task Run(CancellationToken token, ILog log)
        {
            log.Debug("Started");

            // TODO: async token retrieval
            var vkToken = tokenMagic.GetTokenFromScratch(log);

            await vkApi.AuthorizeAsync(new ApiAuthParams()
            {
                AccessToken = vkToken.Token
            });


            var modes   = settings.GetWorkingModes();
            var idTasks = settings.Targets
                          .Select(async x =>
            {
                var id = await vkApiUtils.ResolveId(x);
                return(name: x, id: id);
            });
            var allIds = await Task.WhenAll(idTasks);

            var identifiers = allIds
                              .Distinct()
                              .ToImmutableList();

            log.Debug($"Processing {JsonConvert.SerializeObject(modes)} for {string.Join(", ", identifiers.Select(x => $"[{x.name} {x.id}]"))}");
            filesystemTools.LoadCache(log);
            var downloaderTask = downloader.Process(token, log);

            try
            {
                foreach (var identifier in identifiers)
                {
                    var name = await vkApiUtils.GetName(identifier.id);

                    var workDir = filesystemTools.CreateSubdir(filesystemTools.RootDir, name, CreateMode.OverwriteExisting);
                    log.Info($"id [{identifier.id}], name [{name}], path [{workDir.FullName}]");
                    foreach (var mode in modes)
                    {
                        await ProcessTarget(identifier.id, workDir, mode, token, log);
                    }
                }

                queueProvider.Pending.CompleteAdding();
                var downloadErrors = await downloaderTask;
                foreach (var downloadError in downloadErrors)
                {
                    log.Warn($"Failed {downloadError.DesiredName}", downloadError.Errors.LastOrDefault());
                }
            }
            catch (TaskCanceledException)
            {
                queueProvider.Pending.CompleteAdding();
                log.Warn($"Abandoned {queueProvider.Pending.GetConsumingEnumerable().Count()} pending downloads");
            }
            finally
            {
                filesystemTools.SaveCache(log);
            }
        }