Phase 2: Room database (content stored encrypted)

app/src/main/java/io/github/abrarul/modularai/data/Db.kt

@@ -0,0 +1,35 @@
+package io.github.abrarul.modularai.data
+
+import android.content.Context
+import androidx.room.*
+import kotlinx.coroutines.flow.Flow
+
+@Entity(tableName = "captures")
+data class Capture(
+    @PrimaryKey(autoGenerate = true) val id: Long = 0,
+    val createdAt: Long = System.currentTimeMillis(),
+    val cipher: String // Vault.encrypt(text)
+)
+
+@Dao
+interface CaptureDao {
+    @Query("SELECT * FROM captures ORDER BY createdAt DESC")
+    fun all(): Flow<List<Capture>>
+
+    @Insert suspend fun insert(c: Capture): Long
+    @Delete suspend fun delete(c: Capture)
+    @Query("DELETE FROM captures") suspend fun wipe()
+}
+
+@Database(entities = [Capture::class], version = 1, exportSchema = true)
+abstract class AppDb : RoomDatabase() {
+    abstract fun captures(): CaptureDao
+
+    companion object {
+        @Volatile private var inst: AppDb? = null
+        fun get(ctx: Context): AppDb = inst ?: synchronized(this) {
+            inst ?: Room.databaseBuilder(ctx.applicationContext, AppDb::class.java, "modularai.db")
+                .build().also { inst = it }
+        }
+    }
+}