fix: change polling strategy to every 5 sec for doctrans

CHANGELOG.md

@@ -5,6 +5,10 @@ The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
 
+## Unreleased
+### Fixed
+* Changed document translation to poll the server every 5 seconds. This should greatly reduce observed document translation processing time.
+
 ## [1.7.0] - 2023-03-22
 ### Added
 * Script to check our source code for license headers and a step for them in the CI.

DeepL/Translator.cs

@@ -1019,9 +1019,9 @@ private static void CheckValidLanguages(string? sourceLanguageCode, string targe
     /// <param name="hintSecondsRemaining">Optional hint of the number of seconds remaining.</param>
     /// <returns><see cref="TimeSpan" /> to wait.</returns>
     private static TimeSpan CalculateDocumentWaitTime(int? hintSecondsRemaining) {
-      var secs = ((hintSecondsRemaining ?? 0) / 2.0) + 1.0;
-      secs = Math.Max(1.0, Math.Min(secs, 60.0));
-      return TimeSpan.FromSeconds(secs);
+      // hintSecondsRemaining is currently unreliable, so just poll equidistantly
+      const int POLLING_TIME_SECS = 5;
+      return TimeSpan.FromSeconds(POLLING_TIME_SECS);
     }
 
     /// <summary>Creates a glossary with given details.</summary>