public static void OnTimedEvent()

in src/PortingAssistantExtensionTelemetry/Utils/LogUploadUtils.cs [102:200]
86 lines of code
16 McCabe index (conditional complexity)

        public static void OnTimedEvent(object source, System.Timers.ElapsedEventArgs e, TelemetryConfiguration teleConfig, string lastReadTokenFile, string profile)
        {
            try
            {
                // Get files in directory and filter based on Suffix
                string[] fileEntries = Directory.GetFiles(teleConfig.LogsPath).Where(f =>
                  teleConfig.Suffix.ToArray().Any(x => f.EndsWith(x))
                  ).ToArray();
                // Get or Create fileLineNumberMap
                var fileLineNumberMap = new Dictionary<string, int>();
                if (File.Exists(lastReadTokenFile))
                {
                    fileLineNumberMap = JsonConvert.DeserializeObject<Dictionary<string, int>>(File.ReadAllText(lastReadTokenFile));
                }
                var initLineNumber = 0;
                foreach (var file in fileEntries)
                {
                    var fName = Path.GetFileNameWithoutExtension(file);
                    var fileExtension = Path.GetExtension(file);
                    var logName = "";
                    // Check which type of log file and set the prefix
                    if (fileExtension == ".metrics")
                    {
                        logName = "portingAssistant-ide-metrics";
                    }
                    else if (fileExtension == ".log")
                    {
                        logName = "portingAssistant-ide-logs";
                    }
                    else
                    {
                        continue;
                    }

                    var logs = new ArrayList();

                    // Add new files to fileLineNumberMap
                    if (!fileLineNumberMap.ContainsKey(file))
                    {
                        fileLineNumberMap[file] = 0;
                    }
                    initLineNumber = fileLineNumberMap[file];
                    FileInfo fileInfo = new FileInfo(file);
                    var success = false;
                    if (!IsFileLocked(fileInfo))
                    {
                        using (FileStream fs = fileInfo.Open(FileMode.Open, FileAccess.Read, FileShare.ReadWrite))
                        {
                            using (StreamReader reader = new StreamReader(fs))
                            {
                                string line = null;
                                int currLineNumber = 0;
                                for (; currLineNumber < initLineNumber; currLineNumber++)
                                {
                                    line = reader.ReadLine();
                                    if (line == null)
                                    {
                                        return;
                                    }
                                }

                                line = reader.ReadLine();

                                // If put-log api works keep sending logs else wait and do it next time
                                while (line != null && logs.Count <= 1000)
                                {
                                    currLineNumber++;
                                    logs.Add(line);
                                    line = reader.ReadLine();

                                    // send 1000 lines of logs each time when there are large files
                                    if (logs.Count >= 1000)
                                    {
                                        // logs.TrimToSize();
                                        success = PutLogData(logName, JsonConvert.SerializeObject(logs), profile, teleConfig).Result;
                                        if (success) { logs = new ArrayList(); };
                                    }
                                }

                                if (logs.Count != 0)
                                {
                                    success = PutLogData(logName, JsonConvert.SerializeObject(logs), profile, teleConfig).Result;
                                }
                                if (success)
                                {
                                    fileLineNumberMap[file] = currLineNumber;
                                    string jsonString = JsonConvert.SerializeObject(fileLineNumberMap);
                                    File.WriteAllText(lastReadTokenFile, jsonString);
                                }
                            }
                        }
                    }
                }
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);
            }
        }