#ifndef __UART_DRIVER_H__
#define __UART_DRIVER_H__

#include <cstdint>
#include "bus_core.h"

enum class UartPort : uint8_t {
    _0 = 0,
    _1, _2, _3, _4, _5, _6,
    MAX
};

struct UartConfig {
    uint32_t baudrate = 115200;
    uint8_t data_bits = 8;
    uint8_t stop_bits = 1;
    uint8_t parity = 0;
};

class UartBus {
public:
    explicit UartBus(UartPort port);
    ~UartBus();

    UartBus(const UartBus &) = delete;
    UartBus &operator=(const UartBus &) = delete;

    RetCode init(const UartConfig &config);
    RetCode deinit();
    RetCode send_byte(uint8_t data);
    RetCode send_data(const uint8_t *data, uint32_t len);
    RetCode receive_byte(uint8_t *data, uint32_t timeout_ms);
    RetCode irq_handler();

    static UartBus &default_instance();

private:
    UartPort port_;
    UartConfig config_;
    bool initialized_ = false;
};

#endif