Check the git for a newer release and install it from the Car screen.

app/src/main/java/com/racingapp/pitlog/ui/settings/SettingsScreen.kt

@@ -30,7 +30,9 @@ import androidx.compose.ui.text.input.KeyboardType
 import androidx.compose.ui.unit.dp
 import androidx.lifecycle.ViewModel
 import androidx.lifecycle.viewModelScope
+import android.content.Context
 import com.racingapp.pitlog.data.Car
+import com.racingapp.pitlog.data.checkForAppUpdate
 import com.racingapp.pitlog.data.DEFAULT_CAR
 import com.racingapp.pitlog.data.DEFAULT_CLASS
 import com.racingapp.pitlog.data.DEFAULT_DISCIPLINE
@@ -62,6 +64,9 @@ class SettingsViewModel(private val repository: Repository) : ViewModel() {
         private set
     var syncing by mutableStateOf(false)
         private set
+    var updating by mutableStateOf(false)
+        private set
+    var updateStatus by mutableStateOf("")
 
     init {
         serverAddress = repository.syncAddress()
@@ -148,6 +153,20 @@ class SettingsViewModel(private val repository: Repository) : ViewModel() {
         }
     }
 
+    fun checkForUpdate(context: Context) {
+        if (updating) return
+        updating = true
+        updateStatus = "Checking…"
+        viewModelScope.launch {
+            updateStatus = try {
+                checkForAppUpdate(context) { updateStatus = it }
+            } catch (_: Exception) {
+                "Couldn't check for an update."
+            }
+            updating = false
+        }
+    }
+
     fun changeAutomatic(enabled: Boolean) {
         automatic = enabled
         repository.saveAddress(serverAddress)
@@ -325,6 +344,23 @@ fun SettingsScreen(onBack: () -> Unit) {
                         modifier = Modifier.padding(top = 8.dp),
                     )
                 }
+                SectionLabel("App")
+                OutlinedButton(
+                    onClick = { viewModel.checkForUpdate(context) },
+                    enabled = !viewModel.updating,
+                    modifier = Modifier
+                        .fillMaxWidth()
+                        .padding(top = 8.dp),
+                ) {
+                    Text(if (viewModel.updating) "Checking…" else "Check for updates")
+                }
+                if (viewModel.updateStatus.isNotBlank()) {
+                    Text(
+                        viewModel.updateStatus,
+                        color = MaterialTheme.colorScheme.onSurfaceVariant,
+                        modifier = Modifier.padding(top = 8.dp),
+                    )
+                }
             }
         }
     }