// SPDX-FileCopyrightText: 2022 - 2026 UnionTech Software Technology Co., Ltd.
//
// SPDX-License-Identifier: LGPL-3.0-or-later

#include "linyaps_box/command/exec.h"

#include "linyaps_box/runtime.h"
#include "linyaps_box/status_directory_manager.h"

auto linyaps_box::command::exec(const struct exec_options &options) -> int
{
    status_directory_manager mgr(options.global_.get().root);
    runtime_t runtime(std::move(mgr));

    auto container_refs = runtime.containers();
    auto container = container_refs.find(options.ID);
    if (container == container_refs.end()) {
        throw std::runtime_error("container not found");
    }

    exec_container_option option;
    option.proc.cwd = options.cwd.value_or("/");
    option.proc.args = options.command;
    option.proc.terminal = options.tty;
    option.proc.no_new_privileges = options.no_new_privs;
    option.proc.env = options.envs.value_or(std::vector<std::string>{});
    option.preserve_fds = options.preserve_fds;

    if (option.proc.terminal && options.console_socket) {
        option.console_socket = unix_socket::connect(options.console_socket.value());
    }

#ifdef LINYAPS_BOX_ENABLE_CAP
    if (options.caps) {
        const auto &caps = options.caps.value();
        auto transform_cap = [&caps](std::vector<cap_value_t> &cap_set) {
            std::transform(
                    caps.cbegin(),
                    caps.cend(),
                    std::back_inserter(cap_set),
                    [](const std::string &cap) {
                        cap_value_t val{0};
                        if (cap_from_name(cap.c_str(), &val) < 0) {
                            throw std::system_error(errno, std::system_category(), "cap_from_name");
                        }

                        return val;
                    });
        };

        transform_cap(option.proc.capabilities.effective);
        transform_cap(option.proc.capabilities.ambient);
        transform_cap(option.proc.capabilities.bounding);
        transform_cap(option.proc.capabilities.permitted);
    }
#endif

    return container->second.exec(std::move(option));
}
