A few things here

- Adding new mons is working
- database is also working (añlthough we are using a temporary domain model)
- Insertion should be working too
- I used an appcontainer for the dependency injection, maybe this is not the best approach, but I don't really know any other approaches

Known bug:
- When inserting a new mon, you need to reload the app in order for the storage view to refresh correctly, I don't know what happens and why, probably because I did not create a proper ViewModel to accompany the storage part... currently this is very barebones, but it works!

app/build.gradle.kts

@@ -46,6 +46,7 @@ dependencies {
     ksp(libs.androidx.room.compiler)
     annotationProcessor(libs.androidx.room.compiler)
     implementation(libs.androidx.core.ktx)
+    implementation("androidx.room:room-ktx:2.6.1")
     implementation(libs.androidx.lifecycle.runtime.ktx)
     implementation(libs.androidx.activity.compose)
     implementation(platform(libs.androidx.compose.bom))

app/src/main/AndroidManifest.xml

@@ -6,6 +6,7 @@
     <uses-feature android:name="android.hardware.nfc" android:required="true" />
 
     <application
+        android:name=".di.VBHelper"
         android:allowBackup="true"
         android:dataExtractionRules="@xml/data_extraction_rules"
         android:fullBackupContent="@xml/backup_rules"

app/src/main/java/com/github/nacabaro/vbhelper/MainActivity.kt

@@ -15,11 +15,18 @@ import androidx.compose.runtime.getValue
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.remember
 import androidx.compose.runtime.setValue
+import androidx.compose.ui.platform.LocalContext
 import com.github.nacabaro.vbhelper.navigation.AppNavigation
 import com.github.cfogrady.vbnfc.CryptographicTransformer
+import com.github.cfogrady.vbnfc.R
 import com.github.cfogrady.vbnfc.TagCommunicator
+import com.github.cfogrady.vbnfc.be.BENfcCharacter
 import com.github.cfogrady.vbnfc.data.DeviceType
 import com.github.cfogrady.vbnfc.data.NfcCharacter
+import com.github.nacabaro.vbhelper.di.VBHelper
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryBECharacterData
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryCharacterData
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryTransformationHistory
 import com.github.nacabaro.vbhelper.ui.theme.VBHelperTheme
 import kotlinx.coroutines.flow.MutableStateFlow
 
@@ -41,7 +48,6 @@ class MainActivity : ComponentActivity() {
         }
         nfcAdapter = maybeNfcAdapter
 
-
         super.onCreate(savedInstanceState)
         enableEdgeToEdge()
         setContent {
@@ -54,12 +60,15 @@ class MainActivity : ComponentActivity() {
     @Composable
     private fun MainApplication() {
         var isDoneReadingCharacter by remember { mutableStateOf(false) }
+        val application = LocalContext.current.applicationContext as VBHelper
+        val storageRepository = application.container.db
         AppNavigation(
             isDoneReadingCharacter = isDoneReadingCharacter,
             onClickRead = {
                 handleTag {
                     val character = it.receiveCharacter()
                     nfcCharacter.value = character
+                    addCharacterScannedIntoDatabase()
                     isDoneReadingCharacter = true
                     "Done reading character"
                 }
@@ -74,10 +83,10 @@ class MainActivity : ComponentActivity() {
     private fun getMapOfCryptographicTransformers(): Map<UShort, CryptographicTransformer> {
         return mapOf(
             Pair(DeviceType.VitalBraceletBEDeviceType,
-                CryptographicTransformer(readableHmacKey1 = resources.getString(com.github.cfogrady.vbnfc.R.string.password1),
+                CryptographicTransformer(readableHmacKey1 = resources.getString(R.string.password1),
-                    readableHmacKey2 = resources.getString(com.github.cfogrady.vbnfc.R.string.password2),
+                    readableHmacKey2 = resources.getString(R.string.password2),
-                    aesKey = resources.getString(com.github.cfogrady.vbnfc.R.string.decryptionKey),
+                    aesKey = resources.getString(R.string.decryptionKey),
-                    substitutionCipher = resources.getIntArray(com.github.cfogrady.vbnfc.R.array.substitutionArray))),
+                    substitutionCipher = resources.getIntArray(R.array.substitutionArray))),
 //            Pair(DeviceType.VitalSeriesDeviceType,
 //                CryptographicTransformer(hmacKey1 = resources.getString(R.string.password1),
 //                    hmacKey2 = resources.getString(R.string.password2),
@@ -138,4 +147,88 @@ class MainActivity : ComponentActivity() {
             nfcAdapter.disableReaderMode(this)
         }
     }
+
+    //
+    /*
+    TODO:
+    - Make it able to detect the different model of watches
+    - Support for regular VB
+
+    The good news is that the theory behind inserting to the database should be working
+    now, it's a matter of implementing the functionality to parse dim/bem cards and use my
+    domain model.
+     */
+    private fun addCharacterScannedIntoDatabase() {
+        val beCharacter = nfcCharacter as MutableStateFlow<BENfcCharacter?>
+        val temporaryCharacterData = TemporaryCharacterData(
+            dimId = nfcCharacter.value!!.dimId.toInt(),
+            charIndex = nfcCharacter.value!!.charIndex.toInt(),
+            stage = nfcCharacter.value!!.stage.toInt(),
+            attribute = nfcCharacter.value!!.attribute,
+            ageInDays = nfcCharacter.value!!.ageInDays.toInt(),
+            nextAdventureMissionStage = nfcCharacter.value!!.nextAdventureMissionStage.toInt(),
+            mood = nfcCharacter.value!!.mood.toInt(),
+            vitalPoints = nfcCharacter.value!!.vitalPoints.toInt(),
+            transformationCountdown = nfcCharacter.value!!.transformationCountdown.toInt(),
+            injuryStatus = nfcCharacter.value!!.injuryStatus,
+            trophies = nfcCharacter.value!!.trophies.toInt(),
+            currentPhaseBattlesWon = nfcCharacter.value!!.currentPhaseBattlesWon.toInt(),
+            currentPhaseBattlesLost = nfcCharacter.value!!.currentPhaseBattlesLost.toInt(),
+            totalBattlesWon = nfcCharacter.value!!.totalBattlesWon.toInt(),
+            totalBattlesLost = nfcCharacter.value!!.totalBattlesLost.toInt(),
+            activityLevel = nfcCharacter.value!!.activityLevel.toInt(),
+            heartRateCurrent = nfcCharacter.value!!.heartRateCurrent.toInt()
+        )
+
+        val application = applicationContext as VBHelper
+        val storageRepository = application.container.db
+        val characterId = storageRepository
+            .temporaryMonsterDao()
+            .insertCharacterData(temporaryCharacterData)
+
+        val temporaryBECharacterData = TemporaryBECharacterData(
+            id = characterId,
+            trainingHp = beCharacter.value!!.trainingHp.toInt(),
+            trainingAp = beCharacter.value!!.trainingAp.toInt(),
+            trainingBp = beCharacter.value!!.trainingBp.toInt(),
+            remainingTrainingTimeInMinutes = beCharacter.value!!.remainingTrainingTimeInMinutes.toInt(),
+            itemEffectActivityLevelValue = beCharacter.value!!.itemEffectActivityLevelValue.toInt(),
+            itemEffectMentalStateValue = beCharacter.value!!.itemEffectMentalStateValue.toInt(),
+            itemEffectMentalStateMinutesRemaining = beCharacter.value!!.itemEffectMentalStateMinutesRemaining.toInt(),
+            itemEffectActivityLevelMinutesRemaining = beCharacter.value!!.itemEffectActivityLevelMinutesRemaining.toInt(),
+            itemEffectVitalPointsChangeValue = beCharacter.value!!.itemEffectVitalPointsChangeValue.toInt(),
+            itemEffectVitalPointsChangeMinutesRemaining = beCharacter.value!!.itemEffectVitalPointsChangeMinutesRemaining.toInt(),
+            abilityRarity = beCharacter.value!!.abilityRarity,
+            abilityType = beCharacter.value!!.abilityType.toInt(),
+            abilityBranch = beCharacter.value!!.abilityBranch.toInt(),
+            abilityReset = beCharacter.value!!.abilityReset.toInt(),
+            rank = beCharacter.value!!.abilityReset.toInt(),
+            itemType = beCharacter.value!!.itemType.toInt(),
+            itemMultiplier = beCharacter.value!!.itemMultiplier.toInt(),
+            itemRemainingTime = beCharacter.value!!.itemRemainingTime.toInt(),
+            otp0 = "", //beCharacter.value!!.otp0.toString(),
+            otp1 = "", //beCharacter.value!!.otp1.toString(),
+            minorVersion = beCharacter.value!!.characterCreationFirmwareVersion.minorVersion.toInt(),
+            majorVersion = beCharacter.value!!.characterCreationFirmwareVersion.majorVersion.toInt(),
+        )
+
+        storageRepository
+            .temporaryMonsterDao()
+            .insertBECharacterData(temporaryBECharacterData)
+
+        val transformationHistoryWatch = beCharacter.value!!.transformationHistory
+        val domainTransformationHistory = transformationHistoryWatch.map { item ->
+            TemporaryTransformationHistory(
+                monId = characterId,
+                toCharIndex = item.toCharIndex.toInt(),
+                yearsSince1988 = item.yearsSince1988.toInt(),
+                month = item.month.toInt(),
+                day = item.day.toInt()
+            )
+        }
+
+        storageRepository
+            .temporaryMonsterDao()
+            .insertTransformationHistory(*domainTransformationHistory.toTypedArray())
+    }
 }

app/src/main/java/com/github/nacabaro/vbhelper/database/AppDatabase.kt

@@ -2,15 +2,7 @@ package com.github.nacabaro.vbhelper.database
 
 import androidx.room.Database
 import androidx.room.RoomDatabase
-import com.github.nacabaro.vbhelper.domain.Dim
+import com.github.nacabaro.vbhelper.temporary_daos.TemporaryMonsterDao
-import com.github.nacabaro.vbhelper.domain.DimProgress
-import com.github.nacabaro.vbhelper.domain.Evolutions
-import com.github.nacabaro.vbhelper.domain.Mon
-import com.github.nacabaro.vbhelper.domain.User
-import com.github.nacabaro.vbhelper.domain.UserHealthData
-import com.github.nacabaro.vbhelper.domain.UserMonsters
-import com.github.nacabaro.vbhelper.domain.UserMonstersSpecialMissions
-import com.github.nacabaro.vbhelper.domain.UserStepsData
 import com.github.nacabaro.vbhelper.temporary_domain.TemporaryBECharacterData
 import com.github.nacabaro.vbhelper.temporary_domain.TemporaryCharacterData
 import com.github.nacabaro.vbhelper.temporary_domain.TemporaryTransformationHistory
@@ -24,5 +16,6 @@ import com.github.nacabaro.vbhelper.temporary_domain.TemporaryTransformationHist
     ]
 )
 abstract class AppDatabase : RoomDatabase() {
+    abstract fun temporaryMonsterDao(): TemporaryMonsterDao
 
 }

app/src/main/java/com/github/nacabaro/vbhelper/di/VBHelper.kt

@@ -0,0 +1,13 @@
+package com.github.nacabaro.vbhelper.di
+
+import DefaultAppContainer
+import android.app.Application
+
+class VBHelper : Application() {
+    lateinit var container: DefaultAppContainer
+
+    override fun onCreate() {
+        super.onCreate()
+        container = DefaultAppContainer(applicationContext)
+    }
+}

app/src/main/java/com/github/nacabaro/vbhelper/screens/StorageScreen.kt

@@ -1,5 +1,6 @@
 package com.github.nacabaro.vbhelper.screens
 
+import android.util.Log
 import androidx.compose.foundation.Image
 import androidx.compose.foundation.gestures.Orientation
 import androidx.compose.foundation.gestures.scrollable
@@ -9,35 +10,75 @@ import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
+import androidx.compose.foundation.lazy.grid.items
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.material3.Card
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Scaffold
 import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
+import androidx.compose.runtime.LaunchedEffect
+import androidx.compose.runtime.getValue
+import androidx.compose.runtime.mutableStateListOf
+import androidx.compose.runtime.mutableStateOf
+import androidx.compose.runtime.remember
+import androidx.compose.runtime.rememberCoroutineScope
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier
+import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.text.style.TextAlign
 import androidx.compose.ui.unit.dp
 import com.github.nacabaro.vbhelper.R
 import com.github.nacabaro.vbhelper.components.TopBanner
+import com.github.nacabaro.vbhelper.di.VBHelper
+import com.github.nacabaro.vbhelper.source.StorageRepository
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryCharacterData
+import kotlinx.coroutines.coroutineScope
+import kotlinx.coroutines.launch
+
 
 @Composable
 fun StorageScreen() {
+    val coroutineScope = rememberCoroutineScope()
+    val application = LocalContext.current.applicationContext as VBHelper
+    val storageRepository = StorageRepository(application.container.db)
+    val monList = remember { mutableStateListOf<TemporaryCharacterData>() }
+
+
+    LaunchedEffect(storageRepository) {
+        coroutineScope.launch {
+            monList.clear()
+            monList.addAll(storageRepository.getAllCharacters())
+            Log.d("StorageScreen", "Updated data: $monList")
+        }
+    }
+
+    Log.d("StorageScreen", "monList: $monList")
+
     Scaffold (
         topBar = { TopBanner(text = "My Digimon") }
     ) { contentPadding ->
+        if (monList.isEmpty()) {
+            Text(
+                text = "Nothing to see here",
+                modifier = Modifier
+                    .padding(8.dp)
+            )
+        }
+
         LazyVerticalGrid(
             columns = GridCells.Fixed(3),
             modifier = Modifier
                 .scrollable(state = rememberScrollState(), orientation = Orientation.Vertical)
                 .padding(top = contentPadding.calculateTopPadding())
         ) {
-            items(100) { i ->
+            items(monList) { index ->
                 StorageEntry(
-                    name = "Digimon $i",
+                    name = index.dimId.toString() + " - " + index.charIndex.toString(),
-                    icon = R.drawable.baseline_question_mark_24
+                    icon = R.drawable.ic_launcher_foreground,
+                    modifier = Modifier
+                        .padding(8.dp)
                 )
             }
         }

app/src/main/java/com/github/nacabaro/vbhelper/source/StorageRepository.kt

@@ -0,0 +1,12 @@
+package com.github.nacabaro.vbhelper.source
+
+import com.github.nacabaro.vbhelper.database.AppDatabase
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryCharacterData
+
+class StorageRepository (
+    private val db: AppDatabase
+) {
+    suspend fun getAllCharacters(): List<TemporaryCharacterData> {
+        return db.temporaryMonsterDao().getAllCharacters()
+    }
+}

app/src/main/java/com/github/nacabaro/vbhelper/temporary_daos/TemporaryMonsterDao.kt

@@ -0,0 +1,27 @@
+package com.github.nacabaro.vbhelper.temporary_daos
+
+import androidx.room.Dao
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryBECharacterData
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryCharacterData
+import com.github.nacabaro.vbhelper.temporary_domain.TemporaryTransformationHistory
+
+@Dao
+interface TemporaryMonsterDao {
+    @Insert
+    fun insertCharacterData(temporaryCharacterData: TemporaryCharacterData): Int
+
+    @Insert
+    fun insertBECharacterData(temporaryBECharacterData: TemporaryBECharacterData)
+
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    fun insertTransformationHistory(vararg transformationHistory: TemporaryTransformationHistory)
+
+    @Query("SELECT * FROM TemporaryTransformationHistory WHERE monId = :monId")
+    fun getTransformationHistory(monId: Int): List<TemporaryTransformationHistory>
+
+    @Query("SELECT * FROM TemporaryCharacterData")
+    suspend fun getAllCharacters(): List<TemporaryCharacterData>
+}

app/src/main/java/com/github/nacabaro/vbhelper/temporary_domain/TemporaryBECharacterData.kt

@@ -3,6 +3,7 @@ package com.github.nacabaro.vbhelper.temporary_domain
 import androidx.room.Entity
 import androidx.room.ForeignKey
 import androidx.room.PrimaryKey
+import com.github.cfogrady.vbnfc.be.BENfcCharacter
 import com.github.cfogrady.vbnfc.be.FirmwareVersion
 import com.github.cfogrady.vbnfc.data.NfcCharacter
 
@@ -11,32 +12,33 @@ import com.github.cfogrady.vbnfc.data.NfcCharacter
         ForeignKey(
             entity = TemporaryCharacterData::class,
             parentColumns = ["id"],
-            childColumns = ["userId"],
+            childColumns = ["id"],
             onDelete = ForeignKey.CASCADE
         )
     ]
 )
 data class TemporaryBECharacterData (
     @PrimaryKey(autoGenerate = true) val id: Int,
-    val trainingHp: UShort,
+    val trainingHp: Int,
-    val trainingAp: UShort,
+    val trainingAp: Int,
-    val trainingBp: UShort,
+    val trainingBp: Int,
-    val remainingTrainingTimeInMinutes: UShort,
+    val remainingTrainingTimeInMinutes: Int,
-    val itemEffectMentalStateValue: Byte,
+    val itemEffectMentalStateValue: Int,
-    val itemEffectMentalStateMinutesRemaining: Byte,
+    val itemEffectMentalStateMinutesRemaining: Int,
-    val itemEffectActivityLevelValue: Byte,
+    val itemEffectActivityLevelValue: Int,
-    val itemEffectActivityLevelMinutesRemaining: Byte,
+    val itemEffectActivityLevelMinutesRemaining: Int,
-    val itemEffectVitalPointsChangeValue: Byte,
+    val itemEffectVitalPointsChangeValue: Int,
-    val itemEffectVitalPointsChangeMinutesRemaining: Byte,
+    val itemEffectVitalPointsChangeMinutesRemaining: Int,
     val abilityRarity: NfcCharacter.AbilityRarity,
-    val abilityType: UShort,
+    val abilityType: Int,
-    val abilityBranch: UShort,
+    val abilityBranch: Int,
-    val abilityReset: Byte,
+    val abilityReset: Int,
-    val rank: Byte,
+    val rank: Int,
-    val itemType: Byte,
+    val itemType: Int,
-    val itemMultiplier: Byte,
+    val itemMultiplier: Int,
-    val itemRemainingTime: Byte,
+    val itemRemainingTime: Int,
     val otp0: String,
     val otp1: String,
-    var characterCreationFirmwareVersion: FirmwareVersion,
+    val minorVersion: Int,
+    val majorVersion: Int,
 )

app/src/main/java/com/github/nacabaro/vbhelper/temporary_domain/TemporaryCharacterData.kt

@@ -4,46 +4,24 @@ import androidx.room.Entity
 import androidx.room.PrimaryKey
 import com.github.cfogrady.vbnfc.data.NfcCharacter
 
-/*
-dimId=16,
-charIndex=8,
-stage=4,
-attribute=Free,
-ageInDays=0,
-nextAdventureMissionStage=9,
-mood=99,
-vitalPoints=9999,
-transformationCountdown=1101,
-injuryStatus=None,
-trophies=0,
-currentPhaseBattlesWon=19,
-currentPhaseBattlesLost=4,
-totalBattlesWon=36,
-totalBattlesLost=10,
-activityLevel=0,
-heartRateCurrent=71,
-*/
-
-
 @Entity
 data class TemporaryCharacterData (
-    @PrimaryKey(autoGenerate = true) val id: Int,
+    @PrimaryKey(autoGenerate = true) val id: Int = 0,
-    val dimId: UShort,
+    val dimId: Int,
-    var charIndex: UShort,
+    var charIndex: Int,
-    var stage: Byte,
+    var stage: Int,
     var attribute: NfcCharacter.Attribute,
-    var ageInDays: Byte,
+    var ageInDays: Int,
-    var nextAdventureMissionStage: Byte, // next adventure mission stage on the character's dim
+    var nextAdventureMissionStage: Int, // next adventure mission stage on the character's dim
-    var mood: Byte,
+    var mood: Int,
-    var vitalPoints: UShort,
+    var vitalPoints: Int,
-    var transformationCountdown: UShort,
+    var transformationCountdown: Int,
     var injuryStatus: NfcCharacter.InjuryStatus,
-    var trophies: UShort,
+    var trophies: Int,
-    var currentPhaseBattlesWon: UShort,
+    var currentPhaseBattlesWon: Int,
-    var currentPhaseBattlesLost: UShort,
+    var currentPhaseBattlesLost: Int,
-    var totalBattlesWon: UShort,
+    var totalBattlesWon: Int,
-    var totalBattlesLost: UShort,
+    var totalBattlesLost: Int,
-    var activityLevel: Byte,
+    var activityLevel: Int,
-    var heartRateCurrent: UByte,
+    var heartRateCurrent: Int,
-    var transformationHistory: Int
 )

app/src/main/java/com/github/nacabaro/vbhelper/temporary_domain/TemporaryTransformationHistory.kt

@@ -1,13 +1,25 @@
 package com.github.nacabaro.vbhelper.temporary_domain
 
 import androidx.room.Entity
+import androidx.room.ForeignKey
+import androidx.room.PrimaryKey
 
-@Entity
+@Entity(
+    foreignKeys = [
+        ForeignKey(
+            entity = TemporaryCharacterData::class,
+            parentColumns = ["id"],
+            childColumns = ["monId"],
+            onDelete = ForeignKey.CASCADE
+        )
+    ]
+)
 // Bit lazy, will correct later...
 data class TemporaryTransformationHistory (
+    @PrimaryKey(autoGenerate = true) val id: Int = 0,
     val monId: Int,
-    val toCharIndex: Byte,
+    val toCharIndex: Int,
-    val yearsSince1988: Byte,
+    val yearsSince1988: Int,
-    val month: Byte,
+    val month: Int,
-    val day: Byte
+    val day: Int
 )

app/src/main/java/com/github/nacabaro/vbhelper/vm/StorageViewModel.kt

@@ -0,0 +1,2 @@
+package com.github.nacabaro.vbhelper.vm
+