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#include "domain/message.h"
#include <stdlib.h>
#include <string.h>
#include "base/allocator.h"
static char *
duplicate_string(const char *value)
{
const size_t length = strlen(value);
char *copy = malloc(length + 1);
if (copy != NULL)
{
memcpy(copy, value, length + 1);
}
return copy;
}
static int
copy_failed(tiny_message_t *message)
{
tiny_message_free(message);
return -1;
}
void
tiny_message_init(tiny_message_t *message)
{
if (message == NULL)
{
return;
}
memset(message, 0, sizeof(*message));
message->metadata.memory_tier = TINY_TIER_SHORT;
}
void
tiny_message_free(tiny_message_t *message)
{
size_t index;
if (message == NULL)
{
return;
}
free(message->session_id);
free(message->content);
free(message->metadata.tool_call_id);
for (index = 0; index < message->metadata.tag_count; ++index)
{
free(message->metadata.tags[index]);
}
free(message->metadata.tags);
tiny_message_init(message);
}
int
tiny_message_copy(tiny_message_t *destination, const tiny_message_t *source)
{
size_t index;
if (destination == NULL || source == NULL || destination == source || source->session_id == NULL
|| source->content == NULL
|| (source->metadata.tag_count != 0 && source->metadata.tags == NULL))
{
return -1;
}
tiny_message_init(destination);
memcpy(destination->message_id, source->message_id, sizeof(destination->message_id));
destination->timestamp_ms = source->timestamp_ms;
destination->role = source->role;
destination->metadata.memory_tier = source->metadata.memory_tier;
destination->session_id = duplicate_string(source->session_id);
destination->content = duplicate_string(source->content);
if (destination->session_id == NULL || destination->content == NULL)
{
return copy_failed(destination);
}
if (source->metadata.tool_call_id != NULL)
{
destination->metadata.tool_call_id = duplicate_string(source->metadata.tool_call_id);
if (destination->metadata.tool_call_id == NULL)
{
return copy_failed(destination);
}
}
if (source->metadata.tag_count > 0)
{
destination->metadata.tags = calloc(source->metadata.tag_count, sizeof(char *));
if (destination->metadata.tags == NULL)
{
return copy_failed(destination);
}
for (index = 0; index < source->metadata.tag_count; ++index)
{
destination->metadata.tags[index] = duplicate_string(source->metadata.tags[index]);
if (destination->metadata.tags[index] == NULL)
{
return copy_failed(destination);
}
destination->metadata.tag_count++;
}
}
return 0;
}
const char *
tiny_role_name(tiny_role_t role)
{
switch (role)
{
case TINY_ROLE_USER:
return "user";
case TINY_ROLE_ASSISTANT:
return "assistant";
case TINY_ROLE_SYSTEM:
return "system";
default:
return "unknown";
}
}
bool
tiny_role_parse(const char *value, tiny_role_t *role)
{
if (value == NULL || role == NULL)
{
return false;
}
if (strcmp(value, "user") == 0)
{
*role = TINY_ROLE_USER;
}
else if (strcmp(value, "assistant") == 0)
{
*role = TINY_ROLE_ASSISTANT;
}
else if (strcmp(value, "system") == 0)
{
*role = TINY_ROLE_SYSTEM;
}
else
{
return false;
}
return true;
}
const char *
tiny_tier_name(tiny_memory_tier_t tier)
{
switch (tier)
{
case TINY_TIER_SHORT:
return "short";
case TINY_TIER_MID:
return "mid";
case TINY_TIER_LONG:
return "long";
case TINY_TIER_DISCARD:
return "discard";
default:
return "unknown";
}
}
bool
tiny_tier_parse(const char *value, tiny_memory_tier_t *tier)
{
if (value == NULL || tier == NULL)
{
return false;
}
if (strcmp(value, "short") == 0)
{
*tier = TINY_TIER_SHORT;
}
else if (strcmp(value, "mid") == 0)
{
*tier = TINY_TIER_MID;
}
else if (strcmp(value, "long") == 0)
{
*tier = TINY_TIER_LONG;
}
else if (strcmp(value, "discard") == 0)
{
*tier = TINY_TIER_DISCARD;
}
else
{
return false;
}
return true;
}
bool
tiny_utf8_valid(const char *value, size_t length)
{
size_t index = 0;
if (value == NULL)
{
return length == 0;
}
while (index < length)
{
const unsigned char first = (unsigned char)value[index++];
unsigned needed;
uint32_t codepoint;
if (first < 0x80)
{
if (first == 0)
{
return false;
}
continue;
}
if ((first & 0xe0) == 0xc0)
{
needed = 1;
codepoint = first & 0x1f;
}
else if ((first & 0xf0) == 0xe0)
{
needed = 2;
codepoint = first & 0x0f;
}
else if ((first & 0xf8) == 0xf0)
{
needed = 3;
codepoint = first & 0x07;
}
else
{
return false;
}
if (index + needed > length)
{
return false;
}
while (needed-- > 0)
{
const unsigned char next = (unsigned char)value[index++];
if ((next & 0xc0) != 0x80)
{
return false;
}
codepoint = (codepoint << 6) | (next & 0x3f);
}
if (codepoint > 0x10ffff || (codepoint >= 0xd800 && codepoint <= 0xdfff))
{
return false;
}
if ((first & 0xe0) == 0xc0 && codepoint < 0x80)
{
return false;
}
if ((first & 0xf0) == 0xe0 && codepoint < 0x800)
{
return false;
}
if ((first & 0xf8) == 0xf0 && codepoint < 0x10000)
{
return false;
}
}
return true;
}
bool
tiny_message_id_valid(const char *value)
{
static const char alphabet[] = "0123456789ABCDEFGHJKMNPQRSTVWXYZ";
size_t index;
if (value == NULL || strlen(value) != TINY_MESSAGE_ID_LENGTH || value[0] > '7')
{
return false;
}
for (index = 0; index < TINY_MESSAGE_ID_LENGTH; ++index)
{
if (strchr(alphabet, value[index]) == NULL)
{
return false;
}
}
return true;
}
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