#pragma once
#include <nlohmann/json.hpp>
#include <cstdint>
#include <memory>
#include <string>
#include <string_view>

namespace aethera::web {
struct Plot;
}

namespace aethera::mcp {

enum struct Tool_Call_Result : std::uint8_t {
    ok,
    unknown_tool,
    invalid_arguments,
    unknown_plot,
    rejected
};

struct Tool_Call_Output {
    Tool_Call_Result result{Tool_Call_Result::ok};            /* 调用的已知业务结果。 */
    nlohmann::json content{};                                /* 成功值或结构化错误细节。 */
    std::string message{};                                   /* 供协议适配器显示的简短说明。 */
};

struct Control_Service final {
    static std::shared_ptr<Control_Service> create();
    ~Control_Service();
    Control_Service(const Control_Service&) = delete;
    Control_Service& operator=(const Control_Service&) = delete;

    [[nodiscard]] std::shared_ptr<web::Plot> find_plot(
        std::string_view id) const;
    [[nodiscard]] nlohmann::json plot_catalog() const;
    [[nodiscard]] nlohmann::json tool_catalog() const;
    [[nodiscard]] Tool_Call_Output call_tool(
        std::string_view name, const nlohmann::json& arguments);

private:
    Control_Service();
    struct Private;
    std::unique_ptr<Private> d;
};

}