refactor: move DebugFragment to separate ViewModel

app/src/main/java/com/geeksville/mesh/model/DebugViewModel.kt

@@ -0,0 +1,39 @@
+package com.geeksville.mesh.model
+
+import androidx.lifecycle.ViewModel
+import androidx.lifecycle.viewModelScope
+import com.geeksville.mesh.android.Logging
+import com.geeksville.mesh.database.MeshLogRepository
+import com.geeksville.mesh.database.entity.MeshLog
+import dagger.hilt.android.lifecycle.HiltViewModel
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.flow.StateFlow
+import kotlinx.coroutines.launch
+import javax.inject.Inject
+
+@HiltViewModel
+class DebugViewModel @Inject constructor(
+    private val meshLogRepository: MeshLogRepository,
+) : ViewModel(), Logging {
+
+    private val _meshLog = MutableStateFlow<List<MeshLog>>(emptyList())
+    val meshLog: StateFlow<List<MeshLog>> = _meshLog
+
+    init {
+        viewModelScope.launch {
+            meshLogRepository.getAllLogs().collect { _meshLog.value = it }
+        }
+
+        debug("DebugViewModel created")
+    }
+
+    override fun onCleared() {
+        super.onCleared()
+        debug("DebugViewModel cleared")
+    }
+
+    fun deleteAllLogs() = viewModelScope.launch(Dispatchers.IO) {
+        meshLogRepository.deleteAll()
+    }
+}

app/src/main/java/com/geeksville/mesh/model/UIState.kt

@@ -115,9 +115,6 @@ class UIViewModel @Inject constructor(
     val bondedAddress get() = radioInterfaceService.getBondedDeviceAddress()
     val selectedBluetooth get() = radioInterfaceService.getDeviceAddress()?.getOrNull(0) == 'x'
 
-    private val _meshLog = MutableStateFlow<List<MeshLog>>(emptyList())
-    val meshLog: StateFlow<List<MeshLog>> = _meshLog
-
     private val _packets = MutableStateFlow<List<Packet>>(emptyList())
     val packets: StateFlow<List<Packet>> = _packets
 
@@ -164,11 +161,6 @@ class UIViewModel @Inject constructor(
             radioConfigRepository.clearErrorMessage()
         }.launchIn(viewModelScope)
 
-        viewModelScope.launch {
-            meshLogRepository.getAllLogs().collect { logs ->
-                _meshLog.value = logs
-            }
-        }
         viewModelScope.launch {
             packetRepository.getAllPackets().collect { packets ->
                 _packets.value = packets
@@ -300,10 +292,6 @@ class UIViewModel @Inject constructor(
         }
     }
 
-    fun deleteAllLogs() = viewModelScope.launch(Dispatchers.IO) {
-        meshLogRepository.deleteAll()
-    }
-
     fun deleteAllMessages() = viewModelScope.launch(Dispatchers.IO) {
         packetRepository.deleteAllMessages()
     }

app/src/main/java/com/geeksville/mesh/ui/DebugFragment.kt

@@ -5,7 +5,7 @@ import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
 import androidx.fragment.app.Fragment
-import androidx.fragment.app.activityViewModels
+import androidx.fragment.app.viewModels
 import androidx.lifecycle.asLiveData
 import androidx.recyclerview.widget.LinearLayoutManager
 import androidx.recyclerview.widget.RecyclerView
@@ -13,7 +13,7 @@ import com.geeksville.mesh.CoroutineDispatchers
 import com.geeksville.mesh.R
 import com.geeksville.mesh.database.entity.MeshLog
 import com.geeksville.mesh.databinding.FragmentDebugBinding
-import com.geeksville.mesh.model.UIViewModel
+import com.geeksville.mesh.model.DebugViewModel
 import dagger.hilt.android.AndroidEntryPoint
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.flow.map
@@ -28,7 +28,7 @@ class DebugFragment : Fragment() {
     // This property is only valid between onCreateView and onDestroyView.
     private val binding get() = _binding!!
 
-    private val model: UIViewModel by activityViewModels()
+    private val model: DebugViewModel by viewModels()
 
     @Inject
     lateinit var dispatchers: CoroutineDispatchers