init

app/src/main/java/agzam/vyatsu/data/local/PreferencesDao.kt

@@ -0,0 +1,18 @@
+package agzam.vyatsu.data.local
+
+import androidx.room.Dao
+import androidx.room.Query
+
+@Dao
+interface PreferencesDao {
+    @Query("SELECT value FROM preferences WHERE key = 'selectedGroupId'")
+    suspend fun selectedGroupId(): String?
+
+    @Query(
+        "INSERT OR REPLACE INTO preferences(key, value) VALUES('selectedGroupId', :groupId)"
+    )
+    suspend fun setSelectedGroup(groupId: String)
+
+    @Query("DELETE FROM preferences WHERE key = 'selectedGroupId'")
+    suspend fun clearSelectedGroup()
+}