Auto connect ble, update realtime setting

composeApp/src/androidMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/AppStorage.android.kt

@@ -1,9 +1,14 @@
 package com.digitoolsolutions.app.torquevaultkmp
 
 import android.content.Context
+import android.content.SharedPreferences
 import com.digitoolsolutions.app.torquevaultkmp.data.storage.AppStorage
 import kotlin.reflect.KClass
 import androidx.core.content.edit
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.filterNotNull
 
 class AppStoragePlatform(context: Context) : AppStorage {
     private val prefs = context.getSharedPreferences("app_prefs", Context.MODE_PRIVATE)
@@ -30,4 +35,22 @@ class AppStoragePlatform(context: Context) : AppStorage {
     override fun remove(key: String) {
         prefs.edit { remove(key) }
     }
+
+    @Suppress("UNCHECKED_CAST")
+    override fun <T : Any> observe(key: String, type: KClass<T>): Flow<T> = callbackFlow {
+        val listener = SharedPreferences.OnSharedPreferenceChangeListener { _, changedKey ->
+            if (changedKey == key) {
+                val value: T? = when (type) {
+                    String::class -> prefs.getString(key, null) as T?
+                    Int::class -> prefs.getInt(key, -1) as T?
+                    Boolean::class -> prefs.getBoolean(key, false) as T?
+                    else -> throw IllegalArgumentException("Unsupported type")
+                }
+                value?.let { trySend(it) }
+            }
+        }
+        prefs.registerOnSharedPreferenceChangeListener(listener)
+        load(key, type)?.let { trySend(it) }
+        awaitClose { prefs.unregisterOnSharedPreferenceChangeListener(listener) }
+    }.filterNotNull()
 }

composeApp/src/commonMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/data/repository/DeviceRepository.kt

@@ -11,6 +11,9 @@ import kotlinx.coroutines.flow.Flow
 class DeviceRepository(
     private val dbQueries: AppDatabaseQueries
 ) {
+    companion object {
+        const val PAGE_SIZE = 20L
+    }
     suspend fun saveDevice(id: String, name: String) {
         dbQueries.insertDevice(id, name)
     }
@@ -20,7 +23,10 @@ class DeviceRepository(
             .asFlow()
             .mapToList(Dispatchers.IO)
 
-    suspend fun getDevicesPaged(limit: Long, lastId: String?): List<Device> {
+    suspend fun getAllDeviceIdsFlow(): Flow<List<String>> {
+        return dbQueries.getAllDeviceIds().asFlow().mapToList(Dispatchers.IO)
+    }
+    suspend fun getDevicesPaged(limit: Long = PAGE_SIZE, lastId: String? = null): List<Device> {
         return if (lastId == null) {
             dbQueries.getDevicesFirstPage(limit).executeAsList()
         } else {

composeApp/src/commonMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/data/storage/AppStorage.kt

@@ -1,13 +1,18 @@
 package com.digitoolsolutions.app.torquevaultkmp.data.storage
 
+import kotlinx.coroutines.flow.Flow
 import kotlin.reflect.KClass
 
 interface AppStorage {
     fun <T : Any> save(key: String, value: T)
     fun <T : Any> load(key: String, type: KClass<T>): T?
     fun remove(key: String)
+    fun <T : Any> observe(key: String, type: KClass<T>): Flow<T>
 }
 
 inline fun <reified T : Any> AppStorage.load(key: String): T? {
     return load(key, T::class)
 }
+inline fun <reified T : Any> AppStorage.observe(key: String): Flow<T> {
+    return observe(key, T::class)
+}

composeApp/src/commonMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/screens/bonded/BondedScreen.kt

@@ -51,6 +51,9 @@ fun BondedScreen(
     val devices by viewModel.bondedDevices.collectAsState()
     val isLoading by viewModel.isLoading.collectAsState()
 
+    LaunchedEffect(Unit) {
+        viewModel.refresh()
+    }
     BondedContent(
         devices = devices,
         isLoading = isLoading,

composeApp/src/commonMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/screens/bonded/BondedViewModel.kt

@@ -18,7 +18,7 @@ class BondedViewModel(
     val bondedDevices: StateFlow<List<Device>> = _bondedDevices.asStateFlow()
 
     private var lastId: String? = null
-    private val pageSize = 20L
+    private val pageSize = DeviceRepository.PAGE_SIZE
     private var isLastPage = false
     var isLoading = MutableStateFlow(false)
         private set

composeApp/src/commonMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/screens/scanner/ScannerScreen.kt

@@ -105,7 +105,6 @@ fun ScannerScreen(
                                 } else {
                                     viewModel.disconnect(deviceId)
                                 }
-                                viewModel.addBondedDevice(deviceId, device.name ?: "No name")
                             }
                         )
                     }

composeApp/src/commonMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/screens/scanner/ScannerViewModel.kt

@@ -9,6 +9,7 @@ import com.digitoolsolutions.app.torquevaultkmp.data.repository.ScannerRepositor
 import com.digitoolsolutions.app.torquevaultkmp.data.storage.AppStorage
 import com.digitoolsolutions.app.torquevaultkmp.data.storage.ReferKeys
 import com.digitoolsolutions.app.torquevaultkmp.data.storage.load
+import com.digitoolsolutions.app.torquevaultkmp.data.storage.observe
 import com.juul.kable.Advertisement
 import com.juul.kable.Peripheral
 import com.juul.kable.State
@@ -22,10 +23,12 @@ import kotlinx.coroutines.CancellationException
 import kotlinx.coroutines.cancel
 import kotlinx.coroutines.coroutineScope
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.SharingStarted
 import kotlinx.coroutines.flow.StateFlow
 import kotlinx.coroutines.flow.asStateFlow
 import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.collectLatest
+import kotlinx.coroutines.flow.stateIn
 import kotlinx.coroutines.isActive
 import kotlinx.coroutines.launch
 import kotlin.time.Duration.Companion.seconds
@@ -39,7 +42,9 @@ class ScannerViewModel(
     private val deviceRepository: DeviceRepository,
     private val scannerRepository: ScannerRepository
 ) : ViewModel() {
-
+    companion object {
+        private val SCAN_TIMEOUT = 1.seconds
+    }
     private val _devices = MutableStateFlow<List<Advertisement>>(emptyList())
     val devices: StateFlow<List<Advertisement>> = _devices.asStateFlow()
 
@@ -47,10 +52,9 @@ class ScannerViewModel(
     val isScanning: StateFlow<Boolean> = _isScanning.asStateFlow()
     private val _connectedDevices = MutableStateFlow<Map<String, State>>(emptyMap())
     val connectedDevices: StateFlow<Map<String, State>> = _connectedDevices.asStateFlow()
-
     private val _workOrders = MutableStateFlow<List<WorkOrder>>(emptyList())
-    private val _autoConnect = MutableStateFlow(storage.load<Boolean>(ReferKeys.DEVICE_AUTO_CONNECT) ?: false)
+    private val _autoConnect: StateFlow<Boolean> = storage.observe<Boolean>(ReferKeys.DEVICE_AUTO_CONNECT)
-    val autoConnect: StateFlow<Boolean> = _autoConnect.asStateFlow()
+        .stateIn(viewModelScope, SharingStarted.Eagerly, false)
     private val _onlyWithName = MutableStateFlow(true)
 
     private var scanJob: Job? = null
@@ -59,36 +63,21 @@ class ScannerViewModel(
 
     private val advertisementMap = mutableMapOf<String, Pair<Advertisement, TimeSource.Monotonic.ValueTimeMark>>()
 
-    companion object {
+    /** Bonded device */
-        private val SCAN_TIMEOUT = 1.seconds
+    private val bondedIds = mutableSetOf<String>() // Cache
-    }
+    suspend fun preloadBondedIds() {
-
-    fun fetchWorkOrders(peripheral: Peripheral, woID: String = "0", action: String = "next") {
         viewModelScope.launch {
-            try {
+            deviceRepository.getAllDeviceIdsFlow().collect { ids ->
-                val orders = scannerRepository.getAbleWorkOrders(woID = woID, action = action)
+                bondedIds.clear()
-                _workOrders.value = orders
+                bondedIds.addAll(ids)
-                sendWorkOrdersToDevice(peripheral,orders)
-            } catch (e: Exception) {
-                Napier.e("Failed to load work orders", e)
             }
         }
     }
+    fun isBonded(id: String): Boolean = bondedIds.contains(id)
 
-    private fun sendWorkOrdersToDevice(peripheral: Peripheral, workOrders: List<WorkOrder>) {
+    init {
         viewModelScope.launch {
-            if (workOrders.isEmpty()) {
+            preloadBondedIds()
-                bleManager.sendCommand(peripheral, Helper.buildUartCommand(Helper.CMD_EMPTY_WO))
-                return@launch
-            }
-
-            val formatted = workOrders.joinToString(separator = "\r\n") { wo ->
-                val torque = wo.services?.values?.firstOrNull()?.torqueRequired ?: 0.0
-                val actionCode = if (wo.status.lowercase() == "open") 0 else 1
-                val wheelsMask = wo.computeWheelsNuts()
-                "$${wo.id},${actionCode},${wo.make},${wo.licensePlate},$torque,ft-lb,$wheelsMask*"
-            }
-            bleManager.sendCommand(peripheral, Helper.buildUartCommand(formatted))
         }
     }
 
@@ -106,7 +95,10 @@ class ScannerViewModel(
                 }
                 .collect { advertisement ->
                     if (_onlyWithName.value && advertisement.name == null) return@collect
-                    
+                    val bleId: String = advertisement.identifier.toString()
+                    if(_autoConnect.value  && isBonded(bleId)){
+                        connect(advertisement)
+                    } else {
                         val now = TimeSource.Monotonic.markNow()
                         advertisementMap[advertisement.identifier.toString()] = advertisement to now
                         startCleanupJob()
@@ -114,6 +106,7 @@ class ScannerViewModel(
                     }
                 }
         }
+    }
 
     private fun startCleanupJob() {
         if (cleanupJob?.isActive == true) return
@@ -165,6 +158,8 @@ class ScannerViewModel(
                     launch {
                         peripheral.state.collect { state ->
                             _connectedDevices.value += (deviceIdentifier to state)
+                            /** Add bonded device */
+                            addBondedDevice(deviceIdentifier, adv.name ?: "No name")
                             if (state is State.Disconnected) {
                                 this@coroutineScope.cancel(">>>>> Device disconnected")
                             }
@@ -191,7 +186,6 @@ class ScannerViewModel(
         }
         connectionJobs[deviceIdentifier] = job
     }
-
     fun disconnect(deviceIdentifier: String) {
         viewModelScope.launch {
             bleManager.disconnect(deviceIdentifier)
@@ -200,7 +194,32 @@ class ScannerViewModel(
             _connectedDevices.value -= deviceIdentifier
         }
     }
-
+    fun fetchWorkOrders(peripheral: Peripheral, woID: String = "0", action: String = "next") {
+        viewModelScope.launch {
+            try {
+                val orders = scannerRepository.getAbleWorkOrders(woID = woID, action = action)
+                _workOrders.value = orders
+                sendWorkOrdersToDevice(peripheral,orders)
+            } catch (e: Exception) {
+                Napier.e("Failed to load work orders", e)
+            }
+        }
+    }
+    private fun sendWorkOrdersToDevice(peripheral: Peripheral, workOrders: List<WorkOrder>) {
+        viewModelScope.launch {
+            if (workOrders.isEmpty()) {
+                bleManager.sendCommand(peripheral, Helper.buildUartCommand(Helper.CMD_EMPTY_WO))
+                return@launch
+            }
+            val formatted = workOrders.joinToString(separator = "\r\n") { wo ->
+                val torque = wo.services?.values?.firstOrNull()?.torqueRequired ?: 0.0
+                val actionCode = if (wo.status.lowercase() == "open") 0 else 1
+                val wheelsMask = wo.computeWheelsNuts()
+                "$${wo.id},${actionCode},${wo.make},${wo.licensePlate},$torque,ft-lb,$wheelsMask*"
+            }
+            bleManager.sendCommand(peripheral, Helper.buildUartCommand(formatted))
+        }
+    }
     private fun handleMessage(peripheral: Peripheral, msg: String, deviceIdentifier: String) {
         val decoded = Helper.decodeRxData(msg) ?: return
         val data = decoded.data

composeApp/src/commonMain/sqldelight/com/digitoolsolutions/app/torquevaultkmp/data/storage/db/AppDatabase.sq

@@ -24,6 +24,9 @@ VALUES (?, ?);
 getAllDevices:
 SELECT * FROM Device;
 
+getAllDeviceIds:
+SELECT id FROM Device;
+
 getDevicesFirstPage:
 SELECT * FROM Device ORDER BY id ASC LIMIT :limit;
 

composeApp/src/iosMain/kotlin/com/digitoolsolutions/app/torquevaultkmp/AppStorage.ios.kt

@@ -1,7 +1,14 @@
 package com.digitoolsolutions.app.torquevaultkmp
 
 import com.digitoolsolutions.app.torquevaultkmp.data.storage.AppStorage
+import kotlinx.coroutines.channels.awaitClose
+import kotlinx.coroutines.flow.Flow
+import kotlinx.coroutines.flow.callbackFlow
+import kotlinx.coroutines.flow.filterNotNull
+import kotlinx.coroutines.flow.map
+import platform.Foundation.NSNotificationCenter
 import platform.Foundation.NSUserDefaults
+import platform.Foundation.NSUserDefaultsDidChangeNotification
 import kotlin.reflect.KClass
 
 class AppStoragePlatform : AppStorage {
@@ -28,4 +35,19 @@ class AppStoragePlatform : AppStorage {
     override fun remove(key: String) {
         defaults.removeObjectForKey(key)
     }
+
+    override fun <T : Any> observe(key: String, type: KClass<T>): Flow<T> = callbackFlow {
+        val observer = NSNotificationCenter.defaultCenter.addObserverForName(
+            name = NSUserDefaultsDidChangeNotification,
+            `object` = null,
+            queue = null
+        ) { _ ->
+            load(key, type)?.let { trySend(it) }
+        }
+        // emit initial value
+        load(key, type)?.let { trySend(it) }
+        awaitClose {
+            NSNotificationCenter.defaultCenter.removeObserver(observer)
+        }
+    }.filterNotNull().map { it }
 }