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Merge pull request #4 from andyld97/background
feat: Next update
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,116 @@ | ||
| using System; | ||
| using System.Globalization; | ||
| using System.Net.Http; | ||
| using System.Threading.Tasks; | ||
| using System.Web; | ||
|
|
||
| namespace AutomaticMailPrinter | ||
| { | ||
| public class Logger | ||
| { | ||
| public static readonly string LOG_PATH = System.IO.Path.Combine(System.AppDomain.CurrentDomain.BaseDirectory, "AutomaticMailprinterLog.log"); | ||
| private readonly static LogType CurrentLogLevel = LogType.Info | LogType.Warning | LogType.Error; | ||
| private static readonly HttpClient httpClient = new HttpClient(); | ||
|
|
||
| public static void LogDebug(string message = "", Exception e = null) | ||
| { | ||
| Log(message, e, LogType.Debug, false); | ||
| } | ||
|
|
||
| public static void LogInfo(string message = "", Exception e = null, bool sendWebHook = false) | ||
| { | ||
| // Info can be sended to webhook optinally, but Warnings and Errors are all sended automatically! | ||
| Log(message, e, LogType.Info, sendWebHook); | ||
| } | ||
|
|
||
| public static void LogWarning(string message = "", Exception e = null) | ||
| { | ||
| Log(message, e, LogType.Warning, true); | ||
| } | ||
|
|
||
| public static void LogError(string message = "", Exception e = null) | ||
| { | ||
| Log(message, e, LogType.Error, true); | ||
| } | ||
|
|
||
| private static void Log(string message, Exception e, LogType type, bool sendWebHook) | ||
| { | ||
| // Check if log level matches with current log level - otherwise ignroe | ||
| if ((CurrentLogLevel & type) != type) | ||
| return; | ||
|
|
||
| // Prevent logging empty messages | ||
| if (string.IsNullOrEmpty(message) && e == null) | ||
| return; | ||
|
|
||
| // Generate log message | ||
| var now = DateTime.Now; | ||
|
|
||
| string logContent = string.Empty; | ||
| if (!string.IsNullOrEmpty(message)) | ||
| logContent = message; | ||
|
|
||
| if (e != null) | ||
| { | ||
| if (string.IsNullOrEmpty(logContent)) | ||
| logContent = e.ToString(); | ||
| else | ||
| logContent += $" [Exception]: {e}"; | ||
| } | ||
|
|
||
| string logMessage = $"{now.ToString(Properties.Resources.strLogFormat, CultureInfo.InvariantCulture)} [{type}]: {logContent}\n"; | ||
| System.Diagnostics.Debug.WriteLine(logMessage); | ||
|
|
||
| if (sendWebHook) | ||
| Task.Run(async () => await NotifyWebHookAsync($"[{type} @ {Environment.MachineName}]: {logContent}")); | ||
|
|
||
| // Append message to file | ||
| try | ||
| { | ||
| // If log is too long, clear it | ||
| var fi = new System.IO.FileInfo(LOG_PATH); | ||
| if (fi.Exists && fi.Length > 500 * 1024 * 1024) // 500 MB | ||
| fi.Delete(); | ||
|
|
||
| if (!System.IO.File.Exists(LOG_PATH)) | ||
| System.IO.File.WriteAllText(LOG_PATH, logMessage); | ||
| else | ||
| System.IO.File.AppendAllText(LOG_PATH, logMessage); | ||
| } | ||
| catch | ||
| { | ||
| // If this fails ... UF ... | ||
| } | ||
| } | ||
|
|
||
| private static async Task NotifyWebHookAsync(string message) | ||
| { | ||
| if (string.IsNullOrEmpty(Program.WebHookUrl)) | ||
| return; | ||
|
|
||
| try | ||
| { | ||
| string url = Program.WebHookUrl; | ||
| if (url.EndsWith("/")) | ||
| url = url.Substring(0, url.Length - 1); | ||
| url += $"{HttpUtility.UrlEncode(message)}"; | ||
|
|
||
| await httpClient.GetAsync(url); | ||
| } | ||
| catch (Exception ex) | ||
| { | ||
| // Calling Logger.LogWarning will not work here (because this may result in an endless result) | ||
| Logger.Log($"Failed to notify webhook", ex, LogType.Warning, false); | ||
| } | ||
| } | ||
|
|
||
| [Flags] | ||
| public enum LogType | ||
| { | ||
| Debug = 0x01, | ||
| Info = 0x02, | ||
| Warning = 0x04, | ||
| Error = 0x08 | ||
| } | ||
| } | ||
| } |
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