.gitignore

@@ -1,4 +1,5 @@
 # Project exclude paths
 /target/
 .idea/
-compile.bat
+compile.bat
+.vscode/

.vscode/settings.json

@@ -0,0 +1,3 @@
+{
+    "java.configuration.updateBuildConfiguration": "interactive"
+}

src/main/java/de/b00tload/tools/lastfmtospotifyplaylist/LastFMToSpotify.java

@@ -5,6 +5,7 @@ import com.neovisionaries.i18n.CountryCode;
 import de.b00tload.tools.lastfmtospotifyplaylist.arguments.ArgumentHandler;
 import de.b00tload.tools.lastfmtospotifyplaylist.arguments.Arguments;
 import de.b00tload.tools.lastfmtospotifyplaylist.util.PeriodHelper;
+
 import de.b00tload.tools.lastfmtospotifyplaylist.util.TimeHelper;
 import de.b00tload.tools.lastfmtospotifyplaylist.util.TokenHelper;
 import de.umass.lastfm.Caller;
@@ -36,6 +37,11 @@ public class LastFMToSpotify {
         configuration = new HashMap<>();
         configuration.put("requests.useragent", "LastFMToSpotify/1.0-Snapshot (" + System.getProperty("os.name") + "; " + System.getProperty("os.arch") + ") Java/" + System.getProperty("java.version"));
         configuration.put("playlist.name", "LastFMToSpotify@" + LocalDateTime.now(Clock.systemDefaultZone()).format(DateTimeFormatter.ISO_LOCAL_DATE_TIME));
+        configuration.put("log.level", "1");
+        if (!ArgumentHandler.checkArguments(args)) {
+            return;
+        }
+        
         // parse arguments
         for (int a = 0; a < args.length; a++) {
             Arguments arg;
@@ -59,6 +65,7 @@ public class LastFMToSpotify {
             }
         }
 
+
         try {
             logLn("Authenticating with Spotify...", 1);
             SpotifyApi.Builder build = SpotifyApi.builder();

src/main/java/de/b00tload/tools/lastfmtospotifyplaylist/arguments/ArgumentHandler.java

@@ -2,6 +2,7 @@ package de.b00tload.tools.lastfmtospotifyplaylist.arguments;
 
 import de.b00tload.tools.lastfmtospotifyplaylist.util.FileHelper;
 import de.b00tload.tools.lastfmtospotifyplaylist.util.TimeHelper;
+
 import de.umass.lastfm.Period;
 import org.jetbrains.annotations.Nullable;
 
@@ -22,6 +23,10 @@ import static de.b00tload.tools.lastfmtospotifyplaylist.LastFMToSpotify.LINE_SEP
 import static de.b00tload.tools.lastfmtospotifyplaylist.LastFMToSpotify.configuration;
 import static de.b00tload.tools.lastfmtospotifyplaylist.util.Logger.logLn;
 
+import java.util.List;
+
+import javax.xml.crypto.Data;
+
 public class ArgumentHandler {
 
     public static void handle(Arguments argument, @Nullable String value) {
@@ -48,6 +53,28 @@ public class ArgumentHandler {
         handle(argument, null);
     }
 
+
+    public static boolean checkArguments(String[] args) {
+        // check if all required arguments are given
+        Arguments[] required = {Arguments.SECRET, Arguments.CLIENT, Arguments.TOKEN, Arguments.USER};
+        for (Arguments argument : required) {
+            boolean found = false;
+            // check all aliases
+            for (String alias : argument.getAliases()) {
+                // if one alias is found check next argument
+                if (List.of(args).contains(alias)) {
+                    found = true;
+                    break;
+                }
+            }
+            // else return false
+            if (!found) {
+                return false;
+            }
+        } 
+        return true;
+    }
+
     private static void help(String value) {
         if (value == null) {
             System.out.println("This is a list of all available commands. For more specific help on the argument run --help <argument>.");
@@ -130,6 +157,7 @@ public class ArgumentHandler {
 
     private static void period(Period value) {
         configuration.put("lastfm.period", value.getString());
+
     }
 
     private static void cover(String value) {