Create BitsyDatabase which extends Room and created Assets Entity and Assets Dao to use in the Room db

app/src/main/java/cy/agorise/bitsybitshareswallet/daos/AssetDao.kt

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+package cy.agorise.bitsybitshareswallet.daos
+
+import androidx.lifecycle.LiveData
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.Query
+import cy.agorise.bitsybitshareswallet.models.Asset
+
+@Dao
+interface AssetDao {
+
+    @Query("SELECT * FROM assets")
+    fun getAllAssets(): LiveData<List<Asset>>
+
+    @Insert
+    fun insert(asset: Asset)
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/daos/BitsyDatabase.kt

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+package cy.agorise.bitsybitshareswallet.daos
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import cy.agorise.bitsybitshareswallet.models.Asset
+
+@Database(entities = [Asset::class], version = 1, exportSchema = false)
+abstract class BitsyDatabase : RoomDatabase() {
+
+    abstract fun assetDao(): AssetDao
+
+    companion object {
+
+        // To make sure there is always only one instance of the database open
+        @Volatile
+        private var INSTANCE: BitsyDatabase? = null
+
+        internal fun getDatabase(context: Context): BitsyDatabase? {
+            if (INSTANCE == null) {
+                synchronized(BitsyDatabase::class.java) {
+                    INSTANCE = Room.databaseBuilder(
+                        context.applicationContext,
+                        BitsyDatabase::class.java, "BiTSyWallet.db"
+                    )
+                        .build()
+                }
+            }
+
+            return INSTANCE
+        }
+
+        fun destroyInstance() {
+            INSTANCE = null
+        }
+    }
+}

app/src/main/java/cy/agorise/bitsybitshareswallet/models/Asset.kt

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+package cy.agorise.bitsybitshareswallet.models
+
+import androidx.room.ColumnInfo
+import androidx.room.Entity
+import androidx.room.PrimaryKey
+
+@Entity(tableName = "assets")
+data class Asset(
+    @PrimaryKey
+    @ColumnInfo(name = "id") val id: String,
+    @ColumnInfo(name = "symbol") val symbol: String,
+    @ColumnInfo(name = "precision") val precision: Int,
+    @ColumnInfo(name = "issuer") val issuer: String,
+    @ColumnInfo(name = "description") val description: String,
+    @ColumnInfo(name = "max_supply") val maxSupply: Long, // TODO verify type
+    @ColumnInfo(name = "market_fee_percent") val marketFeePercent: Float, // TODO verify type
+    @ColumnInfo(name = "max_market_fee") val maxMarketFee: Float, // TODO verify type
+    @ColumnInfo(name = "issuer_permissions") val issuerPermissions: Int,
+    @ColumnInfo(name = "flags") val flags: Int,
+    @ColumnInfo(name = "asset_type") val assetType: Int,
+    @ColumnInfo(name = "bit_asset_id") val bitAssetId: String,
+    @ColumnInfo(name = "holders_count") val holdersCount: Int
+)