/**
 * @file i2cPort.hpp
 * @author Gustice
 * @brief C++ Wrapper for I2C-interface
 *
 * @copyright Copyright (c) 2024
 */

#pragma once

#include "driver/gpio.h"
#include "driver/i2c_master.h"
#include "portBase.hpp"
#include <vector>

/**
 * @brief I2C-Master Class
 * @details More recent implementation of IDF-based I2C master
 */
class I2cMaster : public PortBase {
  public:
    class Slave {
      public:
        enum ClockRate {
            _100k = 100000,
            _400k = 400000,
        };

        Slave(I2cMaster &interface, uint8_t addr, ClockRate rate = _100k);
        ~Slave();
        bool writeTo(const std::vector<uint8_t> &data);
        std::vector<uint8_t> readFrom(const std::vector<uint8_t> &address, unsigned size);

      protected:
        const uint8_t Addr;
        I2cMaster &Interface;
        i2c_master_dev_handle_t _devHandle;
    };

    I2cMaster(i2c_port_t port, gpio_num_t sda, gpio_num_t scl);
    ~I2cMaster() = default;

    bool probe(uint8_t addr);

    const i2c_port_t Port;

  private:
    friend class Slave;
    i2c_master_bus_handle_t _busHandle;
};