event_handler_util.hpp

Go to the documentation of this file.

#ifndef _EVENT_HANDLER_UTIL_H
#define _EVENT_HANDLER_UTIL_H

#include "mgos.h"
#include "mgos_mqtt.h"

#include <stdarg.h>
#include <stdint.h>

#define MAX_COMMAND_LEN 30

#define MAX_NAMESPACE_LEN 30

typedef enum {
  HANDLER_NO_ERR = 0,
  MQTT_ERR_UNKNOWN_COMMAND,
  MQTT_ERR_GPIO,
  JSON_NOT_ENOUGH_ARG,
  MQTT_CONFIG_NOT_SET,
  JSON_UNKNOWN_NAMESPACE,
  JSON_VPRINTF_ERROR,
  JSON_VSCANF_ERROR,
  HANDLER_NULL
} HandlerError;

typedef struct {
  HandlerError errorCode;
  const char*  errorMessage;
} ErrDescript;

HandlerError getCommandInfo(struct mg_str* message, char* commandName, char* nameSpace);
HandlerError getAwsPayload(const struct mg_str* message,
                           const char*          awsPayloadFormat,
                           const uint8_t&       totalArg,
                           ...);

HandlerError write_pin(const uint8_t pinNum, const uint8_t pinState);
HandlerError read_pin(const uint8_t pinNum, uint8_t* pinState);

HandlerError create_error_message(const HandlerError error,
                                  struct mg_str*     payload,
                                  char*              errorMessage);

/* State Report Helper */
HandlerError printStateReportOpen(char* jsonOut);
HandlerError printStateReportDelimiter(char* jsonOut);
HandlerError printStateReportEnd(char* jsonOut);

#endif