Add appVersion and downloadFileSupported to external bus config response (#5797)

Author: TimoPtr

app/src/main/kotlin/io/homeassistant/companion/android/webview/WebViewActivity.kt

@@ -84,6 +84,7 @@ import io.homeassistant.companion.android.common.data.keychain.KeyChainRepositor
 import io.homeassistant.companion.android.common.data.keychain.NamedKeyChain
 import io.homeassistant.companion.android.common.data.prefs.NightModeTheme
 import io.homeassistant.companion.android.common.data.servers.ServerManager
+import io.homeassistant.companion.android.common.util.AppVersionProvider
 import io.homeassistant.companion.android.common.util.DisabledLocationHandler
 import io.homeassistant.companion.android.common.util.GestureAction
 import io.homeassistant.companion.android.common.util.GestureDirection
@@ -110,6 +111,7 @@ import io.homeassistant.companion.android.util.isStarted
 import io.homeassistant.companion.android.websocket.WebsocketManager
 import io.homeassistant.companion.android.webview.WebView.ErrorType
 import io.homeassistant.companion.android.webview.externalbus.ExternalBusMessage
+import io.homeassistant.companion.android.webview.externalbus.ExternalConfigResponse
 import io.homeassistant.companion.android.webview.externalbus.NavigateTo
 import io.homeassistant.companion.android.webview.externalbus.ShowSidebar
 import javax.inject.Inject
@@ -208,6 +210,9 @@ class WebViewActivity :
     @NamedKeyChain
     lateinit var keyChainRepository: KeyChainRepository
 
+    @Inject
+    lateinit var appVersionProvider: AppVersionProvider
+
     private lateinit var webView: WebView
     private lateinit var loadedUrl: String
     private lateinit var decor: FrameLayout
@@ -761,25 +766,13 @@ class WebViewActivity :
                                             0
                                         }
                                     sendExternalBusMessage(
-                                        ExternalBusMessage(
+                                        ExternalConfigResponse(
                                             id = JSONObject(message).get("id"),
-                                            type = "result",
-                                            success = true,
-                                            result = JSONObject(
-                                                mapOf(
-                                                    "hasSettingsScreen" to true,
-                                                    "canWriteTag" to hasNfc,
-                                                    "hasExoPlayer" to true,
-                                                    "canCommissionMatter" to canCommissionMatter,
-                                                    "canImportThreadCredentials" to canExportThread,
-                                                    "hasAssist" to true,
-                                                    "hasBarCodeScanner" to hasBarCodeScanner,
-                                                    "canSetupImprov" to true,
-                                                ),
-                                            ),
-                                            callback = {
-                                                Timber.d("Callback $it")
-                                            },
+                                            hasNfc = hasNfc,
+                                            canCommissionMatter = canCommissionMatter,
+                                            canExportThread = canExportThread,
+                                            hasBarCodeScanner = hasBarCodeScanner,
+                                            appVersion = appVersionProvider(),
                                         ),
                                     )
 

app/src/main/kotlin/io/homeassistant/companion/android/webview/externalbus/ExternalBusMessage.kt

@@ -1,7 +1,15 @@
 package io.homeassistant.companion.android.webview.externalbus
 
 import android.webkit.ValueCallback
+import io.homeassistant.companion.android.common.util.AppVersion
+import org.json.JSONObject
+import timber.log.Timber
 
+/**
+ * [External bus documentation](https://developers.home-assistant.io/docs/frontend/external-bus)
+ *
+ * [External bus frontend implementation](https://github.com/home-assistant/frontend/blob/dev/src/external_app/external_messaging.ts)
+ */
 open class ExternalBusMessage(
     val id: Any?,
     val type: String,
@@ -30,3 +38,33 @@ object ShowSidebar : ExternalBusMessage(
     type = "command",
     command = "sidebar/show",
 )
+
+class ExternalConfigResponse(
+    id: Any,
+    hasNfc: Boolean,
+    canCommissionMatter: Boolean,
+    canExportThread: Boolean,
+    hasBarCodeScanner: Int,
+    appVersion: AppVersion,
+) : ExternalBusMessage(
+    id = id,
+    type = "result",
+    success = true,
+    result = JSONObject(
+        mapOf(
+            "hasSettingsScreen" to true,
+            "canWriteTag" to hasNfc,
+            "hasExoPlayer" to true,
+            "canCommissionMatter" to canCommissionMatter,
+            "canImportThreadCredentials" to canExportThread,
+            "hasAssist" to true,
+            "hasBarCodeScanner" to hasBarCodeScanner,
+            "canSetupImprov" to true,
+            "downloadFileSupported" to true,
+            "appVersion" to appVersion.value,
+        ),
+    ),
+    callback = {
+        Timber.d("Callback from external config (id=$id): $it")
+    },
+)