src/domain/message.h


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#ifndef TINY_CONVMEM_DOMAIN_MESSAGE_H
#define TINY_CONVMEM_DOMAIN_MESSAGE_H

#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>

#define TINY_MESSAGE_ID_LENGTH 26
#define TINY_SESSION_ID_MAX 256
#define TINY_CONTENT_MAX (1024U * 1024U)
#define TINY_TOOL_CALL_ID_MAX 256
#define TINY_TAG_MAX 128
#define TINY_TAG_COUNT_MAX 32
#define TINY_QUERY_MAX 4096

typedef enum tiny_role
{
  TINY_ROLE_USER = 1,
  TINY_ROLE_ASSISTANT = 2,
  TINY_ROLE_SYSTEM = 3
} tiny_role_t;

typedef enum tiny_memory_tier
{
  TINY_TIER_SHORT = 1,
  TINY_TIER_MID = 2,
  TINY_TIER_LONG = 3,
  TINY_TIER_DISCARD = 4
} tiny_memory_tier_t;

typedef struct tiny_metadata
{
  char *tool_call_id;
  char **tags;
  size_t tag_count;
  tiny_memory_tier_t memory_tier;
} tiny_metadata_t;

typedef struct tiny_message
{
  char message_id[TINY_MESSAGE_ID_LENGTH + 1];
  char *session_id;
  int64_t timestamp_ms;
  tiny_role_t role;
  char *content;
  tiny_metadata_t metadata;
} tiny_message_t;

void tiny_message_init(tiny_message_t *message);
void tiny_message_free(tiny_message_t *message);
int tiny_message_copy(tiny_message_t *destination, const tiny_message_t *source);

const char *tiny_role_name(tiny_role_t role);
bool tiny_role_parse(const char *value, tiny_role_t *role);
const char *tiny_tier_name(tiny_memory_tier_t tier);
bool tiny_tier_parse(const char *value, tiny_memory_tier_t *tier);
bool tiny_utf8_valid(const char *value, size_t length);
bool tiny_message_id_valid(const char *value);

#endif