Disable location sharing when no MapTiler config is available

LocationService now exposes the MapTiler config to use: the one provided by the
homeserver takes precedence over the build time one, and null means that no map
provider is configured. It is now session scoped, and isServiceAvailable()
returns a StateFlow derived from this config.

When no config is available:
- the location sharing option is hidden from the composer, and location events
  cannot be opened in the location viewer;
- the "Location sharing" entry is hidden from the settings;
- location events in the timeline render a placeholder, without performing any
  request to MapTiler.

The show and share location screens now get the config from LocationService
rather than fetching the homeserver config by themselves.

Closes element-hq/element-android-enterprise#69

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

features/preferences/impl/build.gradle.kts

@@ -75,6 +75,7 @@ dependencies {
     implementation(projects.features.analytics.api)
     implementation(projects.features.enterprise.api)
     implementation(projects.features.licenses.api)
+    implementation(projects.features.location.api)
     implementation(projects.features.logout.api)
     implementation(projects.features.deactivation.api)
     implementation(projects.features.invite.api)
@@ -109,6 +110,7 @@ dependencies {
     testImplementation(projects.features.enterprise.test)
     testImplementation(projects.features.invite.test)
     testImplementation(projects.features.licenses.test)
+    testImplementation(projects.features.location.test)
     testImplementation(projects.features.lockscreen.test)
     testImplementation(projects.features.logout.test)
     testImplementation(projects.libraries.indicator.test)

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/root/PreferencesRootPresenter.kt

@@ -19,6 +19,7 @@ import androidx.compose.runtime.rememberCoroutineScope
 import dev.zacsweers.metro.Inject
 import io.element.android.compound.theme.Theme
 import io.element.android.compound.theme.mapToTheme
+import io.element.android.features.location.api.LocationService
 import io.element.android.features.preferences.impl.account.PreferencesAccountState
 import io.element.android.features.preferences.impl.userstatus.UserStatusState
 import io.element.android.features.preferences.impl.utils.ShowDeveloperSettingsProvider
@@ -47,6 +48,7 @@ class PreferencesRootPresenter(
     private val snackbarDispatcher: SnackbarDispatcher,
     private val showDeveloperSettingsProvider: ShowDeveloperSettingsProvider,
     private val featureFlagService: FeatureFlagService,
+    private val locationService: LocationService,
     private val sessionStore: SessionStore,
     private val appPreferencesStore: AppPreferencesStore,
     private val userStatusPresenter: Presenter<UserStatusState>,
@@ -115,6 +117,8 @@ class PreferencesRootPresenter(
 
         val showDeveloperSettings by showDeveloperSettingsProvider.showDeveloperSettings.collectAsState()
 
+        val isLocationServiceAvailable by remember { locationService.isServiceAvailable() }.collectAsState()
+
         fun handleEvent(event: PreferencesRootEvent) {
             when (event) {
                 is PreferencesRootEvent.OnVersionInfoClick -> {
@@ -150,6 +154,7 @@ class PreferencesRootPresenter(
             showAnalyticsSettings = hasAnalyticsProviders,
             showDeveloperSettings = showDeveloperSettings,
             showLabsItem = showLabsItem,
+            showLocationSettings = isLocationServiceAvailable,
             snackbarMessage = snackbarMessage,
             eventSink = ::handleEvent,
         )

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/root/PreferencesRootState.kt

@@ -32,6 +32,7 @@ data class PreferencesRootState(
     val showAnalyticsSettings: Boolean,
     val showDeveloperSettings: Boolean,
     val showLabsItem: Boolean,
+    val showLocationSettings: Boolean,
     val snackbarMessage: SnackbarMessage?,
     val eventSink: (PreferencesRootEvent) -> Unit,
 )

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/root/PreferencesRootStatePreviewParam.kt

@@ -53,6 +53,8 @@ open class PreferencesRootStatePreviewParam : PreviewParameterProvider<Preferenc
             aPreferencesRootState(userStatusState = aUserStatusState(pickerState = UserStatusPickerState.ShowingPicker)),
             // Minimal state
             aPreferencesRootState(userStatusState = null),
+            // Location sharing not available
+            aPreferencesRootState(showLocationSettings = false),
         )
 }
 
@@ -68,6 +70,7 @@ fun aPreferencesRootState(
     showAnalyticsSettings: Boolean = false,
     showDeveloperSettings: Boolean = false,
     showLabsItem: Boolean = false,
+    showLocationSettings: Boolean = true,
     userStatusState: UserStatusState? = aUserStatusState(),
     snackbarMessage: SnackbarMessage? = null,
     eventSink: (PreferencesRootEvent) -> Unit = {},
@@ -83,6 +86,7 @@ fun aPreferencesRootState(
     showAnalyticsSettings = showAnalyticsSettings,
     showDeveloperSettings = showDeveloperSettings,
     showLabsItem = showLabsItem,
+    showLocationSettings = showLocationSettings,
     userStatusState = userStatusState,
     snackbarMessage = snackbarMessage,
     eventSink = eventSink,

features/preferences/impl/src/main/kotlin/io/element/android/features/preferences/impl/root/PreferencesRootView.kt

@@ -330,11 +330,13 @@ private fun AppSettingsSection(
             leadingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.Lock())),
             onClick = onOpenLockScreenSettings,
         )
-        ListItem(
-            content = { Text(stringResource(id = CommonStrings.common_location_sharing)) },
-            leadingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.LocationPin())),
-            onClick = onOpenLocationSettings,
-        )
+        if (state.showLocationSettings) {
+            ListItem(
+                content = { Text(stringResource(id = CommonStrings.common_location_sharing)) },
+                leadingContent = ListItemContent.Icon(IconSource.Vector(CompoundIcons.LocationPin())),
+                onClick = onOpenLocationSettings,
+            )
+        }
     }
 }
 

features/preferences/impl/src/test/kotlin/io/element/android/features/preferences/impl/root/PreferencesRootPresenterTest.kt

@@ -13,6 +13,8 @@ package io.element.android.features.preferences.impl.root
 import app.cash.turbine.ReceiveTurbine
 import com.google.common.truth.Truth.assertThat
 import io.element.android.compound.theme.Theme
+import io.element.android.features.location.api.LocationService
+import io.element.android.features.location.test.FakeLocationService
 import io.element.android.features.preferences.impl.account.aPreferencesAccountState
 import io.element.android.features.preferences.impl.userstatus.aUserStatusState
 import io.element.android.features.preferences.impl.utils.ShowDeveloperSettingsProvider
@@ -78,10 +80,21 @@ class PreferencesRootPresenterTest {
             assertThat(loadedState.showAnalyticsSettings).isFalse()
             assertThat(loadedState.showDeveloperSettings).isTrue()
             assertThat(loadedState.showLabsItem).isFalse()
+            assertThat(loadedState.showLocationSettings).isTrue()
             assertThat(loadedState.snackbarMessage).isNull()
         }
     }
 
+    @Test
+    fun `present - location settings are hidden when the location service is not available`() = runTest {
+        createPreferencesRootPresenter(
+            locationService = FakeLocationService(isServiceAvailable = false),
+        ).test {
+            assertThat(awaitItem().showLocationSettings).isFalse()
+            cancelAndIgnoreRemainingEvents()
+        }
+    }
+
     @Test
     fun `present - user status state is null when the server does not support it`() = runTest {
         createPreferencesRootPresenter(
@@ -291,6 +304,7 @@ class PreferencesRootPresenterTest {
         featureFlagService: FeatureFlagService = FakeFeatureFlagService(),
         sessionStore: SessionStore = InMemorySessionStore(),
         appPreferencesStore: AppPreferencesStore = InMemoryAppPreferencesStore(),
+        locationService: LocationService = FakeLocationService(isServiceAvailable = true),
     ) = PreferencesRootPresenter(
         matrixClient = matrixClient,
         analyticsService = FakeAnalyticsService(),
@@ -298,6 +312,7 @@ class PreferencesRootPresenterTest {
         snackbarDispatcher = SnackbarDispatcher(),
         showDeveloperSettingsProvider = showDeveloperSettingsProvider,
         featureFlagService = featureFlagService,
+        locationService = locationService,
         sessionStore = sessionStore,
         appPreferencesStore = appPreferencesStore,
         userStatusPresenter = { aUserStatusState() },