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#include "mcp/tools/common/registry.h"
#include "mcp/tools/common/common.h"
#include "mcp/tools/common/context.h"
#include <stdlib.h>
#include <string.h>
#include "base/allocator.h"
static int
compare_history(const void *left, const void *right)
{
const tiny_store_entry_t *a = *(const tiny_store_entry_t *const *)left;
const tiny_store_entry_t *b = *(const tiny_store_entry_t *const *)right;
if (a->message.timestamp_ms < b->message.timestamp_ms)
{
return -1;
}
if (a->message.timestamp_ms > b->message.timestamp_ms)
{
return 1;
}
return strcmp(a->message.message_id, b->message.message_id);
}
static void
call_read_messages(const mcpc_tool_t *tool, mcpc_ucbr_t *result)
{
tiny_mcp_tools_context_t *context = tiny_mcp_tools_context_current();
char *session = tiny_mcp_tool_get_string(tool, "session_id", TINY_SESSION_ID_MAX);
const tiny_store_entry_t **items = NULL;
size_t index, count = 0;
tiny_json_buffer_t json;
if (!context || !session || !session[0])
{
free(session);
tiny_mcp_tool_add_error(result, "VALIDATION_ERROR", "session_id is required");
return;
}
items = malloc((tiny_store_entry_count(context->store) + 1) * sizeof(*items));
if (!items)
{
free(session);
tiny_mcp_tool_add_error(result, "INTERNAL_ERROR", "out of memory");
return;
}
for (index = 0; index < tiny_store_entry_count(context->store); ++index)
{
const tiny_store_entry_t *entry = tiny_store_entry(context->store, index);
if (!entry->deleted && strcmp(entry->message.session_id, session) == 0)
{
items[count++] = entry;
}
}
qsort(items, count, sizeof(*items), compare_history);
tiny_json_init(&json);
tiny_json_raw(&json, "{\"history\":[");
for (index = 0; index < count; ++index)
{
if (index)
{
tiny_json_raw(&json, ",");
}
tiny_mcp_tool_append_message(&json, &items[index]->message);
}
tiny_json_raw(&json, "]}");
tiny_mcp_tool_add_json(result, &json);
tiny_json_free(&json);
free(items);
free(session);
}
bool
tiny_mcp_register_read_messages(mcpc_server_t *server)
{
mcpc_tool_t *tool = tiny_mcp_tool_new("read_messages", "Read a session", call_read_messages);
return tool && tiny_mcp_tool_add_property(tool, "session_id", "Session ID", MCPC_U8STR)
&& mcpc_server_add_tool(server, tool) == MCPC_EC_0;
}
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