Fork of the espurna firmware for `mhsw` switches
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/*
ALEXA MODULE
Copyright (C) 2016-2019 by Xose Pérez <xose dot perez at gmail dot com>
*/
#if ALEXA_SUPPORT
#include <fauxmoESP.h>
fauxmoESP alexa;
#include <queue>
typedef struct {
unsigned char device_id;
bool state;
unsigned char value;
} alexa_queue_element_t;
static std::queue<alexa_queue_element_t> _alexa_queue;
// -----------------------------------------------------------------------------
// ALEXA
// -----------------------------------------------------------------------------
bool _alexaWebSocketOnKeyCheck(const char * key, JsonVariant& value) {
return (strncmp(key, "alexa", 5) == 0);
}
void _alexaWebSocketOnConnected(JsonObject& root) {
root["alexaEnabled"] = alexaEnabled();
root["alexaName"] = getSetting("alexaName");
}
void _alexaConfigure() {
alexa.enable(wifiConnected() && alexaEnabled());
}
#if WEB_SUPPORT
bool _alexaBodyCallback(AsyncWebServerRequest *request, uint8_t *data, size_t len, size_t index, size_t total) {
return alexa.process(request->client(), request->method() == HTTP_GET, request->url(), String((char *)data));
}
bool _alexaRequestCallback(AsyncWebServerRequest *request) {
String body = (request->hasParam("body", true)) ? request->getParam("body", true)->value() : String();
return alexa.process(request->client(), request->method() == HTTP_GET, request->url(), body);
}
#endif
#if BROKER_SUPPORT
void _alexaBrokerCallback(const unsigned char type, const char * topic, unsigned char id, const char * payload) {
// Only process status messages
if (BROKER_MSG_TYPE_STATUS != type) return;
unsigned char value = atoi(payload);
if (strcmp(MQTT_TOPIC_CHANNEL, topic) == 0) {
alexa.setState(id+1, value > 0, value);
}
if (strcmp(MQTT_TOPIC_RELAY, topic) == 0) {
#if RELAY_PROVIDER == RELAY_PROVIDER_LIGHT
if (id > 0) return;
#endif
alexa.setState(id, value, value > 0 ? 255 : 0);
}
}
#endif // BROKER_SUPPORT
// -----------------------------------------------------------------------------
bool alexaEnabled() {
return (getSetting("alexaEnabled", ALEXA_ENABLED).toInt() == 1);
}
void alexaSetup() {
// Backwards compatibility
moveSetting("fauxmoEnabled", "alexaEnabled");
// Basic fauxmoESP configuration
alexa.createServer(!WEB_SUPPORT);
alexa.setPort(80);
// Use custom alexa hostname if defined, device hostname otherwise
String hostname = getSetting("alexaName", ALEXA_HOSTNAME);
if (hostname.length() == 0) {
hostname = getSetting("hostname");
}
// Lights
#if RELAY_PROVIDER == RELAY_PROVIDER_LIGHT
// Global switch
alexa.addDevice(hostname.c_str());
// For each channel
for (unsigned char i = 1; i <= lightChannels(); i++) {
alexa.addDevice((hostname + " " + i).c_str());
}
// Relays
#else
unsigned int relays = relayCount();
if (relays == 1) {
alexa.addDevice(hostname.c_str());
} else {
for (unsigned int i=1; i<=relays; i++) {
alexa.addDevice((hostname + " " + i).c_str());
}
}
#endif
// Load & cache settings
_alexaConfigure();
// Websockets
#if WEB_SUPPORT
webBodyRegister(_alexaBodyCallback);
webRequestRegister(_alexaRequestCallback);
wsRegister()
.onVisible([](JsonObject& root) { root["alexaVisible"] = 1; })
.onConnected(_alexaWebSocketOnConnected)
.onKeyCheck(_alexaWebSocketOnKeyCheck);
#endif
// Register wifi callback
wifiRegister([](justwifi_messages_t code, char * parameter) {
if ((MESSAGE_CONNECTED == code) || (MESSAGE_DISCONNECTED == code)) {
_alexaConfigure();
}
});
// Callback
alexa.onSetState([&](unsigned char device_id, const char * name, bool state, unsigned char value) {
alexa_queue_element_t element;
element.device_id = device_id;
element.state = state;
element.value = value;
_alexa_queue.push(element);
});
// Register main callbacks
#if BROKER_SUPPORT
brokerRegister(_alexaBrokerCallback);
#endif
espurnaRegisterReload(_alexaConfigure);
espurnaRegisterLoop(alexaLoop);
}
void alexaLoop() {
alexa.handle();
while (!_alexa_queue.empty()) {
alexa_queue_element_t element = _alexa_queue.front();
DEBUG_MSG_P(PSTR("[ALEXA] Device #%u state: %s value: %d\n"), element.device_id, element.state ? "ON" : "OFF", element.value);
#if RELAY_PROVIDER == RELAY_PROVIDER_LIGHT
if (0 == element.device_id) {
relayStatus(0, element.state);
} else {
lightState(element.device_id - 1, element.state);
lightChannel(element.device_id - 1, element.value);
lightUpdate(true, true);
}
#else
relayStatus(element.device_id, element.state);
#endif
_alexa_queue.pop();
}
}
#endif