fix(wear): improve client initialization, consolidate health callbacks, and reset workout state

modules/wear-connectivity/android/src/main/java/nl/guidoit/swimbuddy/wear/WearConnectivityModule.kt

@@ -21,6 +21,15 @@ class WearConnectivityModule : Module() {
             private set
     }
 
+    private fun ensureClients(): Pair<MessageClient, NodeClient>? {
+        if (messageClient == null || nodeClient == null) {
+            val ctx = appContext.reactContext ?: return null
+            messageClient = messageClient ?: Wearable.getMessageClient(ctx)
+            nodeClient = nodeClient ?: Wearable.getNodeClient(ctx)
+        }
+        return messageClient!! to nodeClient!!
+    }
+
     override fun definition() = ModuleDefinition {
         Name("WearConnectivity")
 
@@ -43,7 +52,8 @@ class WearConnectivityModule : Module() {
 
         AsyncFunction("isPaired") {
             try {
-                val nodes = nodeClient?.connectedNodes?.await() ?: emptyList()
+                val (_, nc) = ensureClients() ?: return@AsyncFunction false
+                val nodes = nc.connectedNodes.await()
                 nodes.isNotEmpty()
             } catch (e: Exception) {
                 false
@@ -52,7 +62,8 @@ class WearConnectivityModule : Module() {
 
         AsyncFunction("isReachable") {
             try {
-                val nodes = nodeClient?.connectedNodes?.await() ?: emptyList()
+                val (_, nc) = ensureClients() ?: return@AsyncFunction false
+                val nodes = nc.connectedNodes.await()
                 nodes.any { it.isNearby }
             } catch (e: Exception) {
                 false
@@ -61,8 +72,9 @@ class WearConnectivityModule : Module() {
 
         AsyncFunction("sendWorkoutPlan") { plan: Map<String, Any?> ->
             try {
-                val ctx = appContext.reactContext ?: return@AsyncFunction mapOf("error" to "No context")
-                val nodes = nodeClient?.connectedNodes?.await() ?: emptyList()
+                val (mc, nc) = ensureClients()
+                    ?: return@AsyncFunction mapOf("error" to "No context")
+                val nodes = nc.connectedNodes.await()
                 val nearbyNode = nodes.firstOrNull { it.isNearby }
                     ?: return@AsyncFunction mapOf("error" to "No nearby watch found")
 
@@ -74,11 +86,11 @@ class WearConnectivityModule : Module() {
                     }
                 }
 
-                messageClient?.sendMessage(
+                mc.sendMessage(
                     nearbyNode.id,
                     MESSAGE_PATH,
                     json.toString().toByteArray(Charsets.UTF_8)
-                )?.await()
+                ).await()
 
                 mapOf("status" to "sent")
             } catch (e: Exception) {
@@ -88,7 +100,9 @@ class WearConnectivityModule : Module() {
 
         AsyncFunction("sendWorkoutCompletion") { data: Map<String, Any?> ->
             try {
-                val nodes = nodeClient?.connectedNodes?.await() ?: emptyList()
+                val (mc, nc) = ensureClients()
+                    ?: return@AsyncFunction mapOf("error" to "No context")
+                val nodes = nc.connectedNodes.await()
                 val nearbyNode = nodes.firstOrNull { it.isNearby }
                     ?: return@AsyncFunction mapOf("error" to "No nearby watch found")
 
@@ -100,11 +114,11 @@ class WearConnectivityModule : Module() {
                     }
                 }
 
-                messageClient?.sendMessage(
+                mc.sendMessage(
                     nearbyNode.id,
                     MESSAGE_PATH,
                     json.toString().toByteArray(Charsets.UTF_8)
-                )?.await()
+                ).await()
 
                 mapOf("status" to "sent")
             } catch (e: Exception) {