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add LWT to HA discovery config topic

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This commit is contained in:
proddy
2025-11-29 15:12:07 +01:00
parent 0cf932f57e
commit 9c4beba3b1
1 changed files with 13 additions and 6 deletions
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19
src/core/mqtt.cpp
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@@ -532,9 +532,10 @@ void Mqtt::ha_status() {
strcpy(uniq, "system_status");
}
doc["~"] = Mqtt::base();
doc["uniq_id"] = uniq;
doc["def_ent_id"] = (std::string) "binary_sensor." + uniq;
doc["stat_t"] = Mqtt::base() + "/status";
doc["stat_t"] = "~/status";
doc["name"] = "System status";
doc["pl_on"] = "online";
doc["pl_off"] = "offline";
@@ -981,8 +982,9 @@ bool Mqtt::publish_ha_sensor_config(uint8_t type, // EMSdev
return queue_remove_topic(topic);
}
// build the full payload
// build the full topic's payload
JsonDocument doc;
doc["~"] = Mqtt::base();
doc["uniq_id"] = uniq_id;
// set the entity_id. This is breaking change in HA 2025.10.0 - see https://github.com/home-assistant/core/pull/151775
@@ -1000,9 +1002,9 @@ bool Mqtt::publish_ha_sensor_config(uint8_t type, // EMSdev
char command_topic[MQTT_TOPIC_MAX_SIZE];
// add command topic
if (tag >= DeviceValueTAG::TAG_HC1) {
snprintf(command_topic, sizeof(command_topic), "%s/%s/%s/%s", Mqtt::base().c_str(), device_name, EMSdevice::tag_to_mqtt(tag), entity);
snprintf(command_topic, sizeof(command_topic), "~/%s/%s/%s", device_name, EMSdevice::tag_to_mqtt(tag), entity);
} else {
snprintf(command_topic, sizeof(command_topic), "%s/%s/%s", Mqtt::base().c_str(), device_name, entity);
snprintf(command_topic, sizeof(command_topic), "~/%s/%s", device_name, entity);
}
doc["cmd_t"] = command_topic;
@@ -1063,9 +1065,9 @@ bool Mqtt::publish_ha_sensor_config(uint8_t type, // EMSdev
// This is where we determine which MQTT topic to pull the data from
// There is one exception for DeviceType::SYSTEM, which uses the heartbeat topic, and when fetching the version we want to take this from the info topic instead
if ((device_type == EMSdevice::DeviceType::SYSTEM) && (strncmp(entity, "version", 7) == 0)) {
snprintf(stat_t, sizeof(stat_t), "%s/%s", Mqtt::base().c_str(), F_(info));
snprintf(stat_t, sizeof(stat_t), "~/%s", F_(info));
} else {
snprintf(stat_t, sizeof(stat_t), "%s/%s", Mqtt::base().c_str(), tag_to_topic(device_type, tag).c_str());
snprintf(stat_t, sizeof(stat_t), "~/%s", tag_to_topic(device_type, tag).c_str());
}
doc["stat_t"] = stat_t;
@@ -1484,6 +1486,11 @@ void Mqtt::add_ha_avail_section(JsonObject doc, const char * state_t, const bool
avty.add(avty_json); // returns 0 if no mem
}
// add LWT (Last Will and Testament)
avty_json.clear();
avty_json["t"] = "~/status"; // as a topic
avty.add(avty_json);
doc["avty_mode"] = "all";
}