OpenDTU-old/include/MqttBattery.h
Bernhard Kirchen 1a19f881aa Feature: support JSON payload in MQTT battery provider
this changeset adds support for parsing the MQTT battery provider's SoC
and voltage topics' payloads as JSON to extract a numeric value at a
configurable path.
2024-07-31 15:05:41 +02:00

29 lines
984 B
C++

#pragma once
#include <optional>
#include "Battery.h"
#include <espMqttClient.h>
class MqttBattery : public BatteryProvider {
public:
MqttBattery() = default;
bool init(bool verboseLogging) final;
void deinit() final;
void loop() final { return; } // this class is event-driven
std::shared_ptr<BatteryStats> getStats() const final { return _stats; }
private:
bool _verboseLogging = false;
String _socTopic;
String _voltageTopic;
std::shared_ptr<MqttBatteryStats> _stats = std::make_shared<MqttBatteryStats>();
void onMqttMessageSoC(espMqttClientTypes::MessageProperties const& properties,
char const* topic, uint8_t const* payload, size_t len, size_t index, size_t total,
char const* jsonPath);
void onMqttMessageVoltage(espMqttClientTypes::MessageProperties const& properties,
char const* topic, uint8_t const* payload, size_t len, size_t index, size_t total,
char const* jsonPath);
};