Saving play history. The tracks are saved in the db at the time of playback and every week a list of the most played tracks is generated in the home page in grid format

app/src/main/java/com/cappielloantonio/play/repository/ChronologyRepository.java

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+package com.cappielloantonio.play.repository;
+
+import android.app.Application;
+
+import androidx.lifecycle.LiveData;
+
+import com.cappielloantonio.play.database.AppDatabase;
+import com.cappielloantonio.play.database.dao.ChronologyDao;
+import com.cappielloantonio.play.model.Chronology;
+
+import java.util.Calendar;
+import java.util.List;
+
+public class ChronologyRepository {
+    private static final String TAG = "ChronologyRepository";
+
+    private final ChronologyDao chronologyDao;
+
+    public ChronologyRepository(Application application) {
+        AppDatabase database = AppDatabase.getInstance(application);
+        chronologyDao = database.chronologyDao();
+    }
+
+    public LiveData<List<Chronology>> getThisWeek() {
+        Calendar calendar = Calendar.getInstance();
+
+        Calendar first = (Calendar) calendar.clone();
+        first.add(Calendar.DAY_OF_WEEK, first.getFirstDayOfWeek() - first.get(Calendar.DAY_OF_WEEK));
+
+        Calendar last = (Calendar) first.clone();
+        last.add(Calendar.DAY_OF_YEAR, 6);
+
+        return chronologyDao.getAllFrom(first.getTime().getTime(), last.getTime().getTime());
+    }
+
+    public LiveData<List<Chronology>> getLastWeek() {
+        Calendar calendar = Calendar.getInstance();
+
+        Calendar first = (Calendar) calendar.clone();
+        first.add(Calendar.DAY_OF_WEEK, first.getFirstDayOfWeek() - first.get(Calendar.DAY_OF_WEEK) - 6);
+
+        Calendar last = (Calendar) first.clone();
+        last.add(Calendar.DAY_OF_YEAR, 6);
+
+        return chronologyDao.getAllFrom(first.getTime().getTime(), last.getTime().getTime());
+    }
+
+    public void insert(Chronology item) {
+        InsertThreadSafe insert = new InsertThreadSafe(chronologyDao, item);
+        Thread thread = new Thread(insert);
+        thread.start();
+    }
+
+    private static class InsertThreadSafe implements Runnable {
+        private final ChronologyDao chronologyDao;
+        private final Chronology item;
+
+        public InsertThreadSafe(ChronologyDao chronologyDao, Chronology item) {
+            this.chronologyDao = chronologyDao;
+            this.item = item;
+        }
+
+        @Override
+        public void run() {
+            chronologyDao.insert(item);
+        }
+    }
+}