Add Favouite, Dao and database

app/src/main/java/com/ti/mobpo/data/Favourite.kt

@@ -0,0 +1,14 @@
+package com.ti.mobpo.data
+
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+import com.ti.mobpo.model.Sprites
+import com.ti.mobpo.model.Type
+
+@Entity(tableName = "favourites")
+data class Favourite(
+    @PrimaryKey val id: Int,
+    val name: String,
+    val types: List<Type>,
+    val sprites: Sprites
+)

app/src/main/java/com/ti/mobpo/data/FavouriteDao.kt

@@ -0,0 +1,19 @@
+package com.ti.mobpo.data
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+
+@Dao
+interface FavouriteDao {
+    @Insert(onConflict = OnConflictStrategy.IGNORE)
+    suspend fun insert(favourite: Favourite)
+
+    @Delete
+    suspend fun delete(favourite: Favourite)
+
+    @Query("SELECT id FROM favourites")
+    suspend fun getAllFavoriteIds(): List<Int>
+}

app/src/main/java/com/ti/mobpo/data/PokemonDatabase.kt

@@ -0,0 +1,23 @@
+package com.ti.mobpo.data
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+
+@Database(entities = [Favourite::class], version = 1, exportSchema = false)
+abstract class PokemonDatabase : RoomDatabase() {
+    abstract fun FavouriteDao(): FavouriteDao
+
+    companion object {
+        @Volatile
+        private var Instance: PokemonDatabase? = null
+        fun getDatabase(context: Context): PokemonDatabase {
+            return Instance ?: synchronized(this) {
+                Room.databaseBuilder(context, PokemonDatabase::class.java, "favorites_database")
+                    .build()
+                    .also { Instance = it }
+            }
+        }
+    }
+}