esphome/esphome/components/mqtt/mqtt_backend.h
Martin 792108686c
Add mqtt for idf (#2930)
Co-authored-by: Flaviu Tamas <me@flaviutamas.com>
Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
Co-authored-by: Oxan van Leeuwen <oxan@oxanvanleeuwen.nl>
2022-04-04 11:07:20 +12:00

69 lines
2.7 KiB
C++

#pragma once
#include <string>
#include <map>
#include "esphome/components/network/ip_address.h"
#include "esphome/core/helpers.h"
namespace esphome {
namespace mqtt {
enum class MQTTClientDisconnectReason : int8_t {
TCP_DISCONNECTED = 0,
MQTT_UNACCEPTABLE_PROTOCOL_VERSION = 1,
MQTT_IDENTIFIER_REJECTED = 2,
MQTT_SERVER_UNAVAILABLE = 3,
MQTT_MALFORMED_CREDENTIALS = 4,
MQTT_NOT_AUTHORIZED = 5,
ESP8266_NOT_ENOUGH_SPACE = 6,
TLS_BAD_FINGERPRINT = 7
};
/// internal struct for MQTT messages.
struct MQTTMessage {
std::string topic;
std::string payload;
uint8_t qos; ///< QoS. Only for last will testaments.
bool retain;
};
class MQTTBackend {
public:
using on_connect_callback_t = void(bool session_present);
using on_disconnect_callback_t = void(MQTTClientDisconnectReason reason);
using on_subscribe_callback_t = void(uint16_t packet_id, uint8_t qos);
using on_unsubscribe_callback_t = void(uint16_t packet_id);
using on_message_callback_t = void(const char *topic, const char *payload, size_t len, size_t index, size_t total);
using on_publish_user_callback_t = void(uint16_t packet_id);
virtual void set_keep_alive(uint16_t keep_alive) = 0;
virtual void set_client_id(const char *client_id) = 0;
virtual void set_clean_session(bool clean_session) = 0;
virtual void set_credentials(const char *username, const char *password) = 0;
virtual void set_will(const char *topic, uint8_t qos, bool retain, const char *payload) = 0;
virtual void set_server(network::IPAddress ip, uint16_t port) = 0;
virtual void set_server(const char *host, uint16_t port) = 0;
virtual void set_on_connect(std::function<on_connect_callback_t> &&callback) = 0;
virtual void set_on_disconnect(std::function<on_disconnect_callback_t> &&callback) = 0;
virtual void set_on_subscribe(std::function<on_subscribe_callback_t> &&callback) = 0;
virtual void set_on_unsubscribe(std::function<on_unsubscribe_callback_t> &&callback) = 0;
virtual void set_on_message(std::function<on_message_callback_t> &&callback) = 0;
virtual void set_on_publish(std::function<on_publish_user_callback_t> &&callback) = 0;
virtual bool connected() const = 0;
virtual void connect() = 0;
virtual void disconnect() = 0;
virtual bool subscribe(const char *topic, uint8_t qos) = 0;
virtual bool unsubscribe(const char *topic) = 0;
virtual bool publish(const char *topic, const char *payload, size_t length, uint8_t qos, bool retain) = 0;
virtual bool publish(const MQTTMessage &message) {
return publish(message.topic.c_str(), message.payload.c_str(), message.payload.length(), message.qos,
message.retain);
}
// called from MQTTClient::loop()
virtual void loop() {}
};
} // namespace mqtt
} // namespace esphome