proxysql/lib/Admin_Tool_Handler.cpp

#ifdef PROXYSQLGENAI

#include "proxysql.h"

#include "../deps/json/json.hpp"
using json = nlohmann::json;
#define PROXYJSON

#include "Admin_Tool_Handler.h"
#include "MCP_Thread.h"
#include "proxysql_debug.h"

Admin_Tool_Handler::Admin_Tool_Handler(MCP_Threads_Handler* handler)
	: mcp_handler(handler)
{
	pthread_mutex_init(&handler_lock, NULL);
	proxy_debug(PROXY_DEBUG_GENERIC, 3, "Admin_Tool_Handler created\n");
}

Admin_Tool_Handler::~Admin_Tool_Handler() {
	close();
	pthread_mutex_destroy(&handler_lock);
	proxy_debug(PROXY_DEBUG_GENERIC, 3, "Admin_Tool_Handler destroyed\n");
}

int Admin_Tool_Handler::init() {
	proxy_info("Admin_Tool_Handler initialized\n");
	return 0;
}

void Admin_Tool_Handler::close() {
	proxy_debug(PROXY_DEBUG_GENERIC, 2, "Admin_Tool_Handler closed\n");
}

json Admin_Tool_Handler::get_tool_list() {
	json tools = json::array();

	// Stub tools for administrative operations
	tools.push_back(create_tool_description(
		"admin_list_users",
		"List all MySQL users configured in ProxySQL",
		{
			{"type", "object"},
			{"properties", {}}
		}
	));

	tools.push_back(create_tool_description(
		"admin_show_processes",
		"Show running MySQL processes",
		{
			{"type", "object"},
			{"properties", {}}
		}
	));

	tools.push_back(create_tool_description(
		"admin_kill_query",
		"Kill a running query by process ID",
		{
			{"type", "object"},
			{"properties", {
				{"process_id", {
					{"type", "integer"},
					{"description", "Process ID to kill"}
				}}
			}},
			{"required", {"process_id"}}
		}
	));

	tools.push_back(create_tool_description(
		"admin_flush_cache",
		"Flush ProxySQL query cache",
		{
			{"type", "object"},
			{"properties", {
				{"cache_type", {
					{"type", "string"},
					{"enum", {"query_cache", "host_cache", "all"}},
					{"description", "Type of cache to flush"}
				}}
			}},
			{"required", {"cache_type"}}
		}
	));

	tools.push_back(create_tool_description(
		"admin_reload",
		"Reload ProxySQL configuration (users, servers, etc.)",
		{
			{"type", "object"},
			{"properties", {
				{"target", {
					{"type", "string"},
					{"enum", {"users", "servers", "all"}},
					{"description", "What to reload"}
				}}
			}},
			{"required", {"target"}}
		}
	));

	json result;
	result["tools"] = tools;
	return result;
}

json Admin_Tool_Handler::get_tool_description(const std::string& tool_name) {
	json tools_list = get_tool_list();
	for (const auto& tool : tools_list["tools"]) {
		if (tool["name"] == tool_name) {
			return tool;
		}
	}
	return create_error_response("Tool not found: " + tool_name);
}

json Admin_Tool_Handler::execute_tool(const std::string& tool_name, const json& arguments) {
	pthread_mutex_lock(&handler_lock);

	json result;

	// Stub implementation - returns placeholder responses
	if (tool_name == "admin_list_users") {
		result = create_success_response(json{
			{"message", "admin_list_users functionality to be implemented"},
			{"users", json::array()}
		});
	} else if (tool_name == "admin_show_processes") {
		result = create_success_response(json{
			{"message", "admin_show_processes functionality to be implemented"},
			{"processes", json::array()}
		});
	} else if (tool_name == "admin_kill_query") {
		int process_id = arguments.value("process_id", 0);
		result = create_success_response(json{
			{"message", "admin_kill_query functionality to be implemented"},
			{"process_id", process_id}
		});
	} else if (tool_name == "admin_flush_cache") {
		std::string cache_type = arguments.value("cache_type", "all");
		result = create_success_response(json{
			{"message", "admin_flush_cache functionality to be implemented"},
			{"cache_type", cache_type}
		});
	} else if (tool_name == "admin_reload") {
		std::string target = arguments.value("target", "all");
		result = create_success_response(json{
			{"message", "admin_reload functionality to be implemented"},
			{"target", target}
		});
	} else {
		result = create_error_response("Unknown tool: " + tool_name);
	}

	pthread_mutex_unlock(&handler_lock);
	return result;
}

#endif /* PROXYSQLGENAI */