/*******************************************************************************
 * @file    cmd.h
 * @brief   VivaMayo Command Handler Interface
 * @author  Charles KWON <charleskwon@medithings.co.kr>
 * @date    2025-01-30
 * @copyright (c) 2025 Medithings Inc. All rights reserved.
 *
 * @details Firmware-specific command interface for VivaMayo.
 *          Core types (ParsedCmd, CmdEntry) are defined in parser.h
 *          Command table (g_cmd_table) is defined in cmd.c
 ******************************************************************************/

#ifndef CMD_H
#define CMD_H

/* Include parser.h for ParsedCmd, CmdEntry, cmd_handler_t types */
#include "parser.h"

/*==============================================================================
 * @section UTIL Utility Functions (for use by handlers)
 * @brief   Convenience wrappers for parser utility functions
 *============================================================================*/

/**
 * @brief Extract uint16 from ParsedCmd data (little endian)
 * @param cmd        Parsed command
 * @param word_index Word index (0-based)
 * @param out        Output value
 * @return           true on success
 */
bool cmd_get_u16(const ParsedCmd *cmd, uint8_t word_index, uint16_t *out);

/**
 * @brief Extract ASCII string from ParsedCmd data
 * @param cmd        Parsed command
 * @param offset     Byte offset in data
 * @param out        Output buffer
 * @param max_len    Maximum length
 */
void cmd_get_ascii(const ParsedCmd *cmd, uint8_t offset, char *out, uint8_t max_len);

#endif /* CMD_H */