Mirror of espurna firmware for wireless switches and more
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/*
HOME ASSISTANT MODULE
Copyright (C) 2017-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if HOMEASSISTANT_SUPPORT
#include <ArduinoJson.h>
bool _haEnabled = false;
bool _haSendFlag = false;
// -----------------------------------------------------------------------------
// UTILS
// -----------------------------------------------------------------------------
// per yaml 1.1 spec, following scalars are converted to bool. we want the string, so quoting the output
// y|Y|yes|Yes|YES|n|N|no|No|NO |true|True|TRUE|false|False|FALSE |on|On|ON|off|Off|OFF
String _haFixPayload(const String& value) {
if (value.equalsIgnoreCase("y")
|| value.equalsIgnoreCase("n")
|| value.equalsIgnoreCase("yes")
|| value.equalsIgnoreCase("no")
|| value.equalsIgnoreCase("true")
|| value.equalsIgnoreCase("false")
|| value.equalsIgnoreCase("on")
|| value.equalsIgnoreCase("off")
) {
String temp;
temp.reserve(value.length() + 2);
temp = "\"";
temp += value;
temp += "\"";
return temp;
}
return value;
}
String& _haFixName(String& name) {
for (unsigned char i=0; i<name.length(); i++) {
if (!isalnum(name.charAt(i))) name.setCharAt(i, '_');
}
return name;
}
#if (LIGHT_PROVIDER != LIGHT_PROVIDER_NONE) || (defined(ITEAD_SLAMPHER))
const String switchType("light");
#else
const String switchType("switch");
#endif
struct ha_config_t {
static const size_t DEFAULT_BUFFER_SIZE = 2048;
ha_config_t(size_t size) :
jsonBuffer(size),
deviceConfig(jsonBuffer.createObject()),
root(jsonBuffer.createObject()),
identifier(getIdentifier()),
name(getSetting("desc", getSetting("hostname"))),
version(String(APP_NAME " " APP_VERSION " (") + getCoreVersion() + ")")
{
deviceConfig.createNestedArray("identifiers").add(identifier.c_str());
deviceConfig["name"] = name.c_str();
deviceConfig["sw_version"] = version.c_str();
deviceConfig["manufacturer"] = MANUFACTURER;
deviceConfig["model"] = DEVICE;
}
ha_config_t() : ha_config_t(DEFAULT_BUFFER_SIZE) {}
size_t size() { return jsonBuffer.size(); }
DynamicJsonBuffer jsonBuffer;
JsonObject& deviceConfig;
JsonObject& root;
const String identifier;
const String name;
const String version;
};
// -----------------------------------------------------------------------------
// SENSORS
// -----------------------------------------------------------------------------
#if SENSOR_SUPPORT
void _haSendMagnitude(unsigned char i, JsonObject& config) {
unsigned char type = magnitudeType(i);
config["name"] = _haFixName(getSetting("hostname") + String(" ") + magnitudeTopic(type));
config["state_topic"] = mqttTopic(magnitudeTopicIndex(i).c_str(), false);
config["unit_of_measurement"] = magnitudeUnits(type);
}
void _haSendMagnitudes(ha_config_t& config) {
for (unsigned char i=0; i<magnitudeCount(); i++) {
String topic = getSetting("haPrefix", HOMEASSISTANT_PREFIX) +
"/sensor/" +
getSetting("hostname") + "_" + String(i) +
"/config";
String output;
if (_haEnabled) {
_haSendMagnitude(i, config.root);
config.root["uniq_id"] = getIdentifier() + "_" + magnitudeTopic(magnitudeType(i)) + "_" + String(i);
config.root["device"] = config.deviceConfig;
output.reserve(config.root.measureLength());
config.root.printTo(output);
}
mqttSendRaw(topic.c_str(), output.c_str());
}
mqttSendStatus();
}
#endif // SENSOR_SUPPORT
// -----------------------------------------------------------------------------
// SWITCHES & LIGHTS
// -----------------------------------------------------------------------------
void _haSendSwitch(unsigned char i, JsonObject& config) {
String name = getSetting("hostname");
if (relayCount() > 1) {
name += String("_") + String(i);
}
config.set("name", _haFixName(name));
if (relayCount()) {
config["state_topic"] = mqttTopic(MQTT_TOPIC_RELAY, i, false);
config["command_topic"] = mqttTopic(MQTT_TOPIC_RELAY, i, true);
config["payload_on"] = relayPayload(RelayStatus::ON);
config["payload_off"] = relayPayload(RelayStatus::OFF);
config["availability_topic"] = mqttTopic(MQTT_TOPIC_STATUS, false);
config["payload_available"] = mqttPayloadStatus(true);
config["payload_not_available"] = mqttPayloadStatus(false);
}
#if LIGHT_PROVIDER != LIGHT_PROVIDER_NONE
if (i == 0) {
config["brightness_state_topic"] = mqttTopic(MQTT_TOPIC_BRIGHTNESS, false);
config["brightness_command_topic"] = mqttTopic(MQTT_TOPIC_BRIGHTNESS, true);
if (lightHasColor()) {
config["rgb_state_topic"] = mqttTopic(MQTT_TOPIC_COLOR_RGB, false);
config["rgb_command_topic"] = mqttTopic(MQTT_TOPIC_COLOR_RGB, true);
}
if (lightUseCCT()) {
config["color_temp_command_topic"] = mqttTopic(MQTT_TOPIC_MIRED, true);
config["color_temp_state_topic"] = mqttTopic(MQTT_TOPIC_MIRED, false);
}
if (lightChannels() > 3) {
config["white_value_state_topic"] = mqttTopic(MQTT_TOPIC_CHANNEL, 3, false);
config["white_value_command_topic"] = mqttTopic(MQTT_TOPIC_CHANNEL, 3, true);
}
}
#endif // LIGHT_PROVIDER != LIGHT_PROVIDER_NONE
}
void _haSendSwitches(ha_config_t& config) {
for (unsigned char i=0; i<relayCount(); i++) {
String topic = getSetting("haPrefix", HOMEASSISTANT_PREFIX) +
"/" + switchType +
"/" + getSetting("hostname") + "_" + String(i) +
"/config";
String output;
if (_haEnabled) {
_haSendSwitch(i, config.root);
config.root["uniq_id"] = getIdentifier() + "_" + switchType + "_" + String(i);
config.root["device"] = config.deviceConfig;
output.reserve(config.root.measureLength());
config.root.printTo(output);
}
mqttSendRaw(topic.c_str(), output.c_str());
}
mqttSendStatus();
}
// -----------------------------------------------------------------------------
constexpr const size_t HA_YAML_BUFFER_SIZE = 1024;
void _haSwitchYaml(unsigned char index, JsonObject& root) {
String output;
output.reserve(HA_YAML_BUFFER_SIZE);
JsonObject& config = root.createNestedObject("config");
config["platform"] = "mqtt";
_haSendSwitch(index, config);
if (index == 0) output += "\n\n" + switchType + ":";
output += "\n";
bool first = true;
for (auto kv : config) {
if (first) {
output += " - ";
first = false;
} else {
output += " ";
}
output += kv.key;
output += ": ";
if (strncmp(kv.key, "payload_", strlen("payload_")) == 0) {
output += _haFixPayload(kv.value.as<String>());
} else {
output += kv.value.as<String>();
}
output += "\n";
}
output += " ";
root.remove("config");
root["haConfig"] = output;
}
#if SENSOR_SUPPORT
void _haSensorYaml(unsigned char index, JsonObject& root) {
String output;
output.reserve(HA_YAML_BUFFER_SIZE);
JsonObject& config = root.createNestedObject("config");
config["platform"] = "mqtt";
_haSendMagnitude(index, config);
if (index == 0) output += "\n\nsensor:";
output += "\n";
bool first = true;
for (auto kv : config) {
if (first) {
output += " - ";
first = false;
} else {
output += " ";
}
String value = kv.value.as<String>();
value.replace("%", "'%'");
output += kv.key;
output += ": ";
output += value;
output += "\n";
}
output += " ";
root.remove("config");
root["haConfig"] = output;
}
#endif // SENSOR_SUPPORT
void _haGetDeviceConfig(JsonObject& config) {
config.createNestedArray("identifiers").add(getIdentifier());
config["name"] = getSetting("desc", getSetting("hostname"));
config["manufacturer"] = MANUFACTURER;
config["model"] = DEVICE;
config["sw_version"] = String(APP_NAME) + " " + APP_VERSION + " (" + getCoreVersion() + ")";
}
void _haSend() {
// Pending message to send?
if (!_haSendFlag) return;
// Are we connected?
if (!mqttConnected()) return;
DEBUG_MSG_P(PSTR("[HA] Sending autodiscovery MQTT message\n"));
// Get common device config
ha_config_t config;
// Send messages
_haSendSwitches(config);
#if SENSOR_SUPPORT
_haSendMagnitudes(config);
#endif
_haSendFlag = false;
}
void _haConfigure() {
bool enabled = getSetting("haEnabled", HOMEASSISTANT_ENABLED).toInt() == 1;
_haSendFlag = (enabled != _haEnabled);
_haEnabled = enabled;
_haSend();
}
#if WEB_SUPPORT
bool _haWebSocketOnKeyCheck(const char * key, JsonVariant& value) {
return (strncmp(key, "ha", 2) == 0);
}
void _haWebSocketOnVisible(JsonObject& root) {
root["haVisible"] = 1;
}
void _haWebSocketOnConnected(JsonObject& root) {
root["haPrefix"] = getSetting("haPrefix", HOMEASSISTANT_PREFIX);
root["haEnabled"] = getSetting("haEnabled", HOMEASSISTANT_ENABLED).toInt() == 1;
}
void _haWebSocketOnAction(uint32_t client_id, const char * action, JsonObject& data) {
if (strcmp(action, "haconfig") == 0) {
ws_on_send_callback_list_t callbacks;
#if SENSOR_SUPPORT
callbacks.reserve(magnitudeCount() + relayCount());
#else
callbacks.reserve(relayCount());
#endif // SENSOR_SUPPORT
{
for (unsigned char idx=0; idx<relayCount(); ++idx) {
callbacks.push_back([idx](JsonObject& root) {
_haSwitchYaml(idx, root);
});
}
}
#if SENSOR_SUPPORT
{
for (unsigned char idx=0; idx<magnitudeCount(); ++idx) {
callbacks.push_back([idx](JsonObject& root) {
_haSensorYaml(idx, root);
});
}
}
#endif // SENSOR_SUPPORT
if (callbacks.size()) wsPostSequence(client_id, std::move(callbacks));
}
}
#endif // WEB_SUPPORT
#if TERMINAL_SUPPORT
void _haInitCommands() {
terminalRegisterCommand(F("HA.CONFIG"), [](Embedis* e) {
for (unsigned char idx=0; idx<relayCount(); ++idx) {
DynamicJsonBuffer jsonBuffer(1024);
JsonObject& root = jsonBuffer.createObject();
_haSwitchYaml(idx, root);
DEBUG_MSG(root["haConfig"].as<String>().c_str());
}
#if SENSOR_SUPPORT
for (unsigned char idx=0; idx<magnitudeCount(); ++idx) {
DynamicJsonBuffer jsonBuffer(1024);
JsonObject& root = jsonBuffer.createObject();
_haSensorYaml(idx, root);
DEBUG_MSG(root["haConfig"].as<String>().c_str());
}
#endif // SENSOR_SUPPORT
DEBUG_MSG("\n");
terminalOK();
});
terminalRegisterCommand(F("HA.SEND"), [](Embedis* e) {
setSetting("haEnabled", "1");
_haConfigure();
#if WEB_SUPPORT
wsPost(_haWebSocketOnConnected);
#endif
terminalOK();
});
terminalRegisterCommand(F("HA.CLEAR"), [](Embedis* e) {
setSetting("haEnabled", "0");
_haConfigure();
#if WEB_SUPPORT
wsPost(_haWebSocketOnConnected);
#endif
terminalOK();
});
}
#endif
// -----------------------------------------------------------------------------
void haSetup() {
_haConfigure();
#if WEB_SUPPORT
wsRegister()
.onVisible(_haWebSocketOnVisible)
.onConnected(_haWebSocketOnConnected)
.onAction(_haWebSocketOnAction)
.onKeyCheck(_haWebSocketOnKeyCheck);
#endif
#if TERMINAL_SUPPORT
_haInitCommands();
#endif
// On MQTT connect check if we have something to send
mqttRegister([](unsigned int type, const char * topic, const char * payload) {
if (type == MQTT_CONNECT_EVENT) _haSend();
if (type == MQTT_DISCONNECT_EVENT) _haSendFlag = false;
});
// Main callbacks
espurnaRegisterReload(_haConfigure);
}
#endif // HOMEASSISTANT_SUPPORT