No lecturers fix

app/src/main/java/de/sebse/fuplanner/services/kvv/ModulesList.java

@@ -278,6 +278,12 @@ public class ModulesList extends HTTPService {
                         if (--latch[0] == 0) successCallback.onResponse(modulesKVV);
                         continue;
                     }
+                    Modules.Module bbCourse = cacheBBCourse().getBBCourse(courseId);
+                    if (bbCourse != null) {
+                        modulesKVV.addModule(bbCourse);
+                        if (--latch[0] == 0) successCallback.onResponse(modulesKVV);
+                        continue;
+                    }
                     get(String.format("https://lms.fu-berlin.de/learn/api/v1/courses/%s?fields=name,courseId,description", courseId), mLogin.getLoginTokenBB().getCookies(), response1 -> {
                         String body1 = response1.getParsed();
                         if (body1 == null) {
@@ -313,7 +319,8 @@ public class ModulesList extends HTTPService {
                                 Semester finalSemester = semester;
                                 String finalType = type;
                                 lecturer().getBBLecturers(courseId, success -> {
-                                    modulesKVV.addModule(finalSemester, lvNumberSet, name, success, finalType, description, courseId, Modules.TYPE_BB);
+                                    Modules.Module module = modulesKVV.addModule(finalSemester, lvNumberSet, name, success, finalType, description, courseId, Modules.TYPE_BB);
+                                    cacheBBCourse().setBBCourse(courseId, module);
                                     if (--latch[0] == 0) successCallback.onResponse(modulesKVV);
                                 }, error -> {
                                     log.e(error);

app/src/main/java/de/sebse/fuplanner/services/kvv/ModulesListLecturer.java

@@ -10,8 +10,8 @@ import java.io.IOException;
 import java.util.ArrayList;
 import java.util.LinkedHashSet;
 
-import de.sebse.fuplanner.services.kvv.types.Lecturer;
 import de.sebse.fuplanner.services.kvv.types.CacheLecturer;
+import de.sebse.fuplanner.services.kvv.types.Lecturer;
 import de.sebse.fuplanner.tools.network.HTTPService;
 import de.sebse.fuplanner.tools.network.NetworkCallback;
 import de.sebse.fuplanner.tools.network.NetworkError;
@@ -53,6 +53,8 @@ class ModulesListLecturer extends HTTPService {
                     if (--latch[0] == 0) callback.onResponse(lecturers);
                 });
             }
+            if (lecturerString.size() == 0)
+                callback.onResponse(lecturers);
             return;
         }
 

app/src/main/java/de/sebse/fuplanner/services/kvv/types/CacheBBCourse.java

@@ -8,6 +8,7 @@ import java.io.IOException;
 import java.io.ObjectInputStream;
 import java.io.ObjectOutputStream;
 import java.io.Serializable;
+import java.util.HashMap;
 import java.util.HashSet;
 
 public class CacheBBCourse implements Serializable {
@@ -18,6 +19,8 @@ public class CacheBBCourse implements Serializable {
 
     private HashSet<String> mKVVCourseList = new HashSet<>();
     private long mKVVCourseListRefresh = 0;
+    private HashMap<String, Modules.Module> mBBCourseList = new HashMap<>();
+    private HashMap<String, Long> mBBCourseListRefresh = new HashMap<>();
 
     public static CacheBBCourse load(Context context) throws IOException, ClassNotFoundException {
         FileInputStream fis = context.openFileInput(FILE_NAME);
@@ -72,4 +75,18 @@ public class CacheBBCourse implements Serializable {
             return false;
         return mKVVCourseList.contains(courseID);
     }
+
+    public void setBBCourse(String courseID, Modules.Module lecturer) {
+        mBBCourseList.put(courseID, lecturer);
+        mBBCourseListRefresh.put(courseID, System.currentTimeMillis());
+    }
+
+    public Modules.Module getBBCourse(String courseID) {
+        if (!mBBCourseListRefresh.containsKey(courseID))
+            return null;
+        //noinspection ConstantConditions
+        if (mBBCourseListRefresh.get(courseID) + RESAVE_TIMER < System.currentTimeMillis())
+            return null;
+        return mBBCourseList.get(courseID);
+    }
 }

app/src/main/java/de/sebse/fuplanner/services/kvv/types/Modules.java

@@ -39,9 +39,14 @@ public class Modules implements Iterable<Modules.Module>, Serializable {
         this.list = new SortedListModule();
     }
 
-    public void addModule(@Nullable Semester semester, HashSet<String> lvNumber, String title, LinkedHashSet<Lecturer> lecturer, String type, String description, String ID, int moduleType) {
+    public Module addModule(@Nullable Semester semester, HashSet<String> lvNumber, String title, LinkedHashSet<Lecturer> lecturer, String type, String description, String ID, int moduleType) {
         Module m = new Module(semester, lvNumber, title, lecturer, type, description, ID, moduleType);
         this.list.add(m);
+        return m;
+    }
+
+    public void addModule(Module module) {
+        this.list.add(module);
     }
 
     @NonNull
@@ -224,5 +229,9 @@ public class Modules implements Iterable<Modules.Module>, Serializable {
         public int getModuleType() {
             return moduleType;
         }
+
+        public Module clone() {
+            return new Module(semester, lvNumber, title, new LinkedHashSet<>(lecturer), type, description, ID, moduleType);
+        }
     }
 }