Add logic to wait 15 seconds and then retry one time when Telegram API calls fail

Author: rob93c

src/main/java/com/github/stickerifier/stickerify/bot/Stickerify.java

@@ -39,6 +39,7 @@
 import java.io.IOException;
 import java.nio.file.Files;
 import java.nio.file.Path;
+import java.time.Duration;
 import java.util.List;
 import java.util.Set;
 import java.util.concurrent.Executor;
@@ -230,9 +231,25 @@ private <T extends BaseRequest<T, R>, R extends BaseResponse> R execute(BaseRequ
 			return response;
 		}
 
+		waitFor(Duration.ofSeconds(15));
+
+		response = bot.execute(request);
+
+		if (response.isOk()) {
+			return response;
+		}
+
 		throw new TelegramApiException(request.getMethod(), response.description());
 	}
 
+	private static void waitFor(Duration duration) {
+		try {
+			Thread.sleep(duration);
+		} catch (InterruptedException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
 	private static void deleteTempFiles(Set<Path> pathsToDelete) {
 		for (var path : pathsToDelete) {
 			try {