From 8e3456078b5742b7b89afd56b688e296bea44927 Mon Sep 17 00:00:00 2001
From: CappielloAntonio <antoniocappiello.play@gmail.com>
Date: Tue, 20 Apr 2021 14:16:09 +0200
Subject: [PATCH] added db function to retrieve pseudo random elements

---
 .../com/cappielloantonio/play/database/dao/SongDao.java     | 3 +++
 .../cappielloantonio/play/repository/SongRepository.java    | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/app/src/main/java/com/cappielloantonio/play/database/dao/SongDao.java b/app/src/main/java/com/cappielloantonio/play/database/dao/SongDao.java
index f16f970d..e1e72277 100644
--- a/app/src/main/java/com/cappielloantonio/play/database/dao/SongDao.java
+++ b/app/src/main/java/com/cappielloantonio/play/database/dao/SongDao.java
@@ -24,6 +24,9 @@ public interface SongDao {
     @Query("SELECT * FROM song WHERE title LIKE '%' || :title || '%'")
     LiveData<List<Song>> searchSong(String title);
 
+    @Query("SELECT * FROM song WHERE key IN (:pseudoRandomNumber)")
+    LiveData<List<Song>> getDiscoverySample(List<Integer> pseudoRandomNumber);
+
     @Query("SELECT * FROM song ORDER BY added DESC LIMIT :number")
     LiveData<List<Song>> getRecentlyAddedSample(int number);
 
diff --git a/app/src/main/java/com/cappielloantonio/play/repository/SongRepository.java b/app/src/main/java/com/cappielloantonio/play/repository/SongRepository.java
index 04534e1b..9f1fe346 100644
--- a/app/src/main/java/com/cappielloantonio/play/repository/SongRepository.java
+++ b/app/src/main/java/com/cappielloantonio/play/repository/SongRepository.java
@@ -21,6 +21,7 @@ public class SongRepository {
     private SongDao songDao;
     private SongGenreCrossDao songGenreCrossDao;
     private LiveData<List<Song>> searchListLiveSongs;
+    private LiveData<List<Song>> listLiveSampleDiscoverSongs;
     private LiveData<List<Song>> listLiveSampleRecentlyAddedSongs;
     private LiveData<List<Song>> listLiveSampleRecentlyPlayedSongs;
     private LiveData<List<Song>> listLiveSampleMostPlayedSongs;
@@ -44,6 +45,11 @@ public class SongRepository {
         return searchListLiveSongs;
     }
 
+    public LiveData<List<Song>> getListLiveDiscoverSampleSong(List<Integer> pseudoRandomNumber) {
+        listLiveSampleDiscoverSongs = songDao.getDiscoverySample(pseudoRandomNumber);
+        return listLiveSampleDiscoverSongs;
+    }
+
     public LiveData<List<Song>> getListLiveRecentlyAddedSampleSong(int number) {
         listLiveSampleRecentlyAddedSongs = songDao.getRecentlyAddedSample(number);
         return listLiveSampleRecentlyAddedSongs;