Add on_client_connected and disconnected to voice assistant (#5629)

esphome/components/api/__init__.py

@@ -18,6 +18,8 @@ from esphome.const import (
     CONF_TRIGGER_ID,
     CONF_EVENT,
     CONF_TAG,
+    CONF_ON_CLIENT_CONNECTED,
+    CONF_ON_CLIENT_DISCONNECTED,
 )
 from esphome.core import coroutine_with_priority
 
@@ -45,8 +47,6 @@ SERVICE_ARG_NATIVE_TYPES = {
     "string[]": cg.std_vector.template(cg.std_string),
 }
 CONF_ENCRYPTION = "encryption"
-CONF_ON_CLIENT_CONNECTED = "on_client_connected"
-CONF_ON_CLIENT_DISCONNECTED = "on_client_disconnected"
 
 
 def validate_encryption_key(value):

esphome/components/api/api_connection.cpp

@@ -59,6 +59,11 @@ APIConnection::~APIConnection() {
     bluetooth_proxy::global_bluetooth_proxy->unsubscribe_api_connection(this);
   }
 #endif
+#ifdef USE_VOICE_ASSISTANT
+  if (voice_assistant::global_voice_assistant->get_api_connection() == this) {
+    voice_assistant::global_voice_assistant->client_subscription(this, false);
+  }
+#endif
 }
 
 void APIConnection::loop() {
@@ -911,14 +916,17 @@ BluetoothConnectionsFreeResponse APIConnection::subscribe_bluetooth_connections_
 #endif
 
 #ifdef USE_VOICE_ASSISTANT
-bool APIConnection::request_voice_assistant(const VoiceAssistantRequest &msg) {
-  if (!this->voice_assistant_subscription_)
-    return false;
-
-  return this->send_voice_assistant_request(msg);
+void APIConnection::subscribe_voice_assistant(const SubscribeVoiceAssistantRequest &msg) {
+  if (voice_assistant::global_voice_assistant != nullptr) {
+    voice_assistant::global_voice_assistant->client_subscription(this, msg.subscribe);
+  }
 }
 void APIConnection::on_voice_assistant_response(const VoiceAssistantResponse &msg) {
   if (voice_assistant::global_voice_assistant != nullptr) {
+    if (voice_assistant::global_voice_assistant->get_api_connection() != this) {
+      return;
+    }
+
     if (msg.error) {
       voice_assistant::global_voice_assistant->failed_to_start();
       return;
@@ -931,6 +939,10 @@ void APIConnection::on_voice_assistant_response(const VoiceAssistantResponse &ms
 };
 void APIConnection::on_voice_assistant_event_response(const VoiceAssistantEventResponse &msg) {
   if (voice_assistant::global_voice_assistant != nullptr) {
+    if (voice_assistant::global_voice_assistant->get_api_connection() != this) {
+      return;
+    }
+
     voice_assistant::global_voice_assistant->on_event(msg);
   }
 }

esphome/components/api/api_connection.h

@@ -121,10 +121,7 @@ class APIConnection : public APIServerConnection {
 #endif
 
 #ifdef USE_VOICE_ASSISTANT
-  void subscribe_voice_assistant(const SubscribeVoiceAssistantRequest &msg) override {
-    this->voice_assistant_subscription_ = msg.subscribe;
-  }
-  bool request_voice_assistant(const VoiceAssistantRequest &msg);
+  void subscribe_voice_assistant(const SubscribeVoiceAssistantRequest &msg) override;
   void on_voice_assistant_response(const VoiceAssistantResponse &msg) override;
   void on_voice_assistant_event_response(const VoiceAssistantEventResponse &msg) override;
 #endif
@@ -183,6 +180,8 @@ class APIConnection : public APIServerConnection {
   }
   bool send_buffer(ProtoWriteBuffer buffer, uint32_t message_type) override;
 
+  std::string get_client_combined_info() const { return this->client_combined_info_; }
+
  protected:
   friend APIServer;
 
@@ -215,9 +214,6 @@ class APIConnection : public APIServerConnection {
   uint32_t last_traffic_;
   bool sent_ping_{false};
   bool service_call_subscription_{false};
-#ifdef USE_VOICE_ASSISTANT
-  bool voice_assistant_subscription_{false};
-#endif
   bool next_close_ = false;
   APIServer *parent_;
   InitialStateIterator initial_state_iterator_;

esphome/components/api/api_server.cpp

@@ -323,30 +323,6 @@ void APIServer::on_shutdown() {
   delay(10);
 }
 
-#ifdef USE_VOICE_ASSISTANT
-bool APIServer::start_voice_assistant(const std::string &conversation_id, uint32_t flags,
-                                      const api::VoiceAssistantAudioSettings &audio_settings) {
-  VoiceAssistantRequest msg;
-  msg.start = true;
-  msg.conversation_id = conversation_id;
-  msg.flags = flags;
-  msg.audio_settings = audio_settings;
-  for (auto &c : this->clients_) {
-    if (c->request_voice_assistant(msg))
-      return true;
-  }
-  return false;
-}
-void APIServer::stop_voice_assistant() {
-  VoiceAssistantRequest msg;
-  msg.start = false;
-  for (auto &c : this->clients_) {
-    if (c->request_voice_assistant(msg))
-      return;
-  }
-}
-#endif
-
 #ifdef USE_ALARM_CONTROL_PANEL
 void APIServer::on_alarm_control_panel_update(alarm_control_panel::AlarmControlPanel *obj) {
   if (obj->is_internal())

esphome/components/api/api_server.h

@@ -81,12 +81,6 @@ class APIServer : public Component, public Controller {
   void request_time();
 #endif
 
-#ifdef USE_VOICE_ASSISTANT
-  bool start_voice_assistant(const std::string &conversation_id, uint32_t flags,
-                             const api::VoiceAssistantAudioSettings &audio_settings);
-  void stop_voice_assistant();
-#endif
-
 #ifdef USE_ALARM_CONTROL_PANEL
   void on_alarm_control_panel_update(alarm_control_panel::AlarmControlPanel *obj) override;
 #endif

esphome/components/voice_assistant/__init__.py

@@ -6,6 +6,8 @@ from esphome.const import (
     CONF_MICROPHONE,
     CONF_SPEAKER,
     CONF_MEDIA_PLAYER,
+    CONF_ON_CLIENT_CONNECTED,
+    CONF_ON_CLIENT_DISCONNECTED,
 )
 from esphome import automation
 from esphome.automation import register_action, register_condition
@@ -80,6 +82,12 @@ CONFIG_SCHEMA = cv.All(
             cv.Optional(CONF_ON_TTS_END): automation.validate_automation(single=True),
             cv.Optional(CONF_ON_END): automation.validate_automation(single=True),
             cv.Optional(CONF_ON_ERROR): automation.validate_automation(single=True),
+            cv.Optional(CONF_ON_CLIENT_CONNECTED): automation.validate_automation(
+                single=True
+            ),
+            cv.Optional(CONF_ON_CLIENT_DISCONNECTED): automation.validate_automation(
+                single=True
+            ),
         }
     ).extend(cv.COMPONENT_SCHEMA),
 )
@@ -155,6 +163,20 @@ async def to_code(config):
             config[CONF_ON_ERROR],
         )
 
+    if CONF_ON_CLIENT_CONNECTED in config:
+        await automation.build_automation(
+            var.get_client_connected_trigger(),
+            [],
+            config[CONF_ON_CLIENT_CONNECTED],
+        )
+
+    if CONF_ON_CLIENT_DISCONNECTED in config:
+        await automation.build_automation(
+            var.get_client_disconnected_trigger(),
+            [],
+            config[CONF_ON_CLIENT_DISCONNECTED],
+        )
+
     cg.add_define("USE_VOICE_ASSISTANT")
 
 

esphome/components/voice_assistant/voice_assistant.cpp

@@ -127,8 +127,8 @@ int VoiceAssistant::read_microphone_() {
 }
 
 void VoiceAssistant::loop() {
-  if (this->state_ != State::IDLE && this->state_ != State::STOP_MICROPHONE &&
-      this->state_ != State::STOPPING_MICROPHONE && !api::global_api_server->is_connected()) {
+  if (this->api_client_ == nullptr && this->state_ != State::IDLE && this->state_ != State::STOP_MICROPHONE &&
+      this->state_ != State::STOPPING_MICROPHONE) {
     if (this->mic_->is_running() || this->state_ == State::STARTING_MICROPHONE) {
       this->set_state_(State::STOP_MICROPHONE, State::IDLE);
     } else {
@@ -213,7 +213,14 @@ void VoiceAssistant::loop() {
       audio_settings.noise_suppression_level = this->noise_suppression_level_;
       audio_settings.auto_gain = this->auto_gain_;
       audio_settings.volume_multiplier = this->volume_multiplier_;
-      if (!api::global_api_server->start_voice_assistant(this->conversation_id_, flags, audio_settings)) {
+
+      api::VoiceAssistantRequest msg;
+      msg.start = true;
+      msg.conversation_id = this->conversation_id_;
+      msg.flags = flags;
+      msg.audio_settings = audio_settings;
+
+      if (this->api_client_ == nullptr || !this->api_client_->send_voice_assistant_request(msg)) {
         ESP_LOGW(TAG, "Could not request start.");
         this->error_trigger_->trigger("not-connected", "Could not request start.");
         this->continuous_ = false;
@@ -326,6 +333,28 @@ void VoiceAssistant::loop() {
   }
 }
 
+void VoiceAssistant::client_subscription(api::APIConnection *client, bool subscribe) {
+  if (!subscribe) {
+    if (this->api_client_ == nullptr || client != this->api_client_) {
+      ESP_LOGE(TAG, "Client attempting to unsubscribe that is not the current API Client");
+      return;
+    }
+    this->api_client_ = nullptr;
+    this->client_disconnected_trigger_->trigger();
+    return;
+  }
+
+  if (this->api_client_ != nullptr) {
+    ESP_LOGE(TAG, "Multiple API Clients attempting to connect to Voice Assistant");
+    ESP_LOGE(TAG, "Current client: %s", this->api_client_->get_client_combined_info().c_str());
+    ESP_LOGE(TAG, "New client: %s", client->get_client_combined_info().c_str());
+    return;
+  }
+
+  this->api_client_ = client;
+  this->client_connected_trigger_->trigger();
+}
+
 static const LogString *voice_assistant_state_to_string(State state) {
   switch (state) {
     case State::IDLE:
@@ -408,7 +437,7 @@ void VoiceAssistant::start_streaming(struct sockaddr_storage *addr, uint16_t por
 }
 
 void VoiceAssistant::request_start(bool continuous, bool silence_detection) {
-  if (!api::global_api_server->is_connected()) {
+  if (this->api_client_ == nullptr) {
     ESP_LOGE(TAG, "No API client connected");
     this->set_state_(State::IDLE, State::IDLE);
     this->continuous_ = false;
@@ -459,9 +488,14 @@ void VoiceAssistant::request_stop() {
 }
 
 void VoiceAssistant::signal_stop_() {
-  ESP_LOGD(TAG, "Signaling stop...");
-  api::global_api_server->stop_voice_assistant();
   memset(&this->dest_addr_, 0, sizeof(this->dest_addr_));
+  if (this->api_client_ == nullptr) {
+    return;
+  }
+  ESP_LOGD(TAG, "Signaling stop...");
+  api::VoiceAssistantRequest msg;
+  msg.start = false;
+  this->api_client_->send_voice_assistant_request(msg);
 }
 
 void VoiceAssistant::on_event(const api::VoiceAssistantEventResponse &msg) {

esphome/components/voice_assistant/voice_assistant.h

@@ -8,8 +8,8 @@
 #include "esphome/core/component.h"
 #include "esphome/core/helpers.h"
 
+#include "esphome/components/api/api_connection.h"
 #include "esphome/components/api/api_pb2.h"
-#include "esphome/components/api/api_server.h"
 #include "esphome/components/microphone/microphone.h"
 #ifdef USE_SPEAKER
 #include "esphome/components/speaker/speaker.h"
@@ -109,6 +109,12 @@ class VoiceAssistant : public Component {
   Trigger<> *get_end_trigger() const { return this->end_trigger_; }
   Trigger<std::string, std::string> *get_error_trigger() const { return this->error_trigger_; }
 
+  Trigger<> *get_client_connected_trigger() const { return this->client_connected_trigger_; }
+  Trigger<> *get_client_disconnected_trigger() const { return this->client_disconnected_trigger_; }
+
+  void client_subscription(api::APIConnection *client, bool subscribe);
+  api::APIConnection *get_api_connection() const { return this->api_client_; }
+
  protected:
   int read_microphone_();
   void set_state_(State state);
@@ -127,6 +133,11 @@ class VoiceAssistant : public Component {
   Trigger<> *end_trigger_ = new Trigger<>();
   Trigger<std::string, std::string> *error_trigger_ = new Trigger<std::string, std::string>();
 
+  Trigger<> *client_connected_trigger_ = new Trigger<>();
+  Trigger<> *client_disconnected_trigger_ = new Trigger<>();
+
+  api::APIConnection *api_client_{nullptr};
+
   microphone::Microphone *mic_{nullptr};
 #ifdef USE_SPEAKER
   speaker::Speaker *speaker_{nullptr};

esphome/const.py

@@ -481,6 +481,8 @@ CONF_ON_BLE_MANUFACTURER_DATA_ADVERTISE = "on_ble_manufacturer_data_advertise"
 CONF_ON_BLE_SERVICE_DATA_ADVERTISE = "on_ble_service_data_advertise"
 CONF_ON_BOOT = "on_boot"
 CONF_ON_CLICK = "on_click"
+CONF_ON_CLIENT_CONNECTED = "on_client_connected"
+CONF_ON_CLIENT_DISCONNECTED = "on_client_disconnected"
 CONF_ON_CONNECT = "on_connect"
 CONF_ON_CONTROL = "on_control"
 CONF_ON_DISCONNECT = "on_disconnect"