/*
// Copyright (c) 2018 Intel Corporation
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
*/
#pragma once

#include "app.hpp"
#include "dbus_utility.hpp"
#include "error_messages.hpp"
#include "managed_store_types.hpp"
#include "query.hpp"
#include "registries/privilege_registry.hpp"

#include <sdbusplus/asio/property.hpp>

#include <variant>
namespace redfish
{

inline std::string getRoleFromPrivileges(std::string_view priv)
{
    if (priv == "priv-admin")
    {
        return "Administrator";
    }
    if (priv == "priv-user")
    {
        return "ReadOnly";
    }
    if (priv == "priv-operator")
    {
        return "Operator";
    }
    return "";
}

inline bool getAssignedPrivFromRole(std::string_view role,
                                    nlohmann::json& privArray)
{
    if (role == "Administrator")
    {
        privArray = {"Login", "ConfigureManager", "ConfigureUsers",
                     "ConfigureSelf", "ConfigureComponents"};
    }
    else if (role == "Operator")
    {
        privArray = {"Login", "ConfigureSelf", "ConfigureComponents"};
    }
    else if (role == "ReadOnly")
    {
        privArray = {"Login", "ConfigureSelf"};
    }
    else
    {
        return false;
    }
    return true;
}

inline void handleRolesGet(App& app, const crow::Request& req,
                           const std::shared_ptr<bmcweb::AsyncResp>& asyncResp,
                           const std::string& roleId)
{
    if (!redfish::setUpRedfishRoute(app, req, asyncResp))
    {
        return;
    }
    nlohmann::json privArray = nlohmann::json::array();
    if (!getAssignedPrivFromRole(roleId, privArray))
    {
        messages::resourceNotFound(asyncResp->res, "Role", roleId);

        return;
    }

    asyncResp->res.jsonValue["@odata.type"] = "#Role.v1_2_2.Role";
    asyncResp->res.jsonValue["Name"] = "User Role";
    asyncResp->res.jsonValue["Description"] = roleId + " User Role";
    asyncResp->res.jsonValue["OemPrivileges"] = nlohmann::json::array();
    asyncResp->res.jsonValue["IsPredefined"] = true;
    asyncResp->res.jsonValue["Id"] = roleId;
    asyncResp->res.jsonValue["RoleId"] = roleId;
    asyncResp->res.jsonValue["@odata.id"] = crow::utility::urlFromPieces(
        "redfish", "v1", "AccountService", "Roles", roleId);
    asyncResp->res.jsonValue["AssignedPrivileges"] = std::move(privArray);
}

inline void requestRoutesRoles(App& app)
{
    BMCWEB_ROUTE(app, "/redfish/v1/AccountService/Roles/<str>/")
        .privileges(redfish::privileges::getRole)
        .methods(boost::beast::http::verb::get)(
            std::bind_front(handleRolesGet, std::ref(app)));
}

inline void
    handleRoleCollectionGet(App& app, const crow::Request& req,
                            const std::shared_ptr<bmcweb::AsyncResp>& asyncResp)
{
    if (!redfish::setUpRedfishRoute(app, req, asyncResp))
    {
        return;
    }

    asyncResp->res.jsonValue["@odata.id"] = "/redfish/v1/AccountService/Roles";
    asyncResp->res.jsonValue["@odata.type"] = "#RoleCollection.RoleCollection";
    asyncResp->res.jsonValue["Name"] = "Roles Collection";
    asyncResp->res.jsonValue["Description"] = "BMC User Roles";

    managedStore::ManagedObjectStoreContext requestContext(asyncResp);
    dbus_utils::getProperty<std::vector<std::string>>(
        "xyz.openbmc_project.User.Manager", "/xyz/openbmc_project/user",
        "xyz.openbmc_project.User.Manager", "AllPrivileges", requestContext,
        [asyncResp](const boost::system::error_code& ec,
                    const std::vector<std::string>& privList) {
        if (ec)
        {
            messages::internalError(asyncResp->res);
            return;
        }
        nlohmann::json& memberArray = asyncResp->res.jsonValue["Members"];
        memberArray = nlohmann::json::array();
        for (const std::string& priv : privList)
        {
            std::string role = getRoleFromPrivileges(priv);
            if (!role.empty())
            {
                nlohmann::json::object_t member;
                member["@odata.id"] = crow::utility::urlFromPieces(
                    "redfish", "v1", "AccountService", "Roles", role);
                memberArray.push_back(std::move(member));
            }
        }
        asyncResp->res.jsonValue["Members@odata.count"] = memberArray.size();
    });
}

inline void requestRoutesRoleCollection(App& app)
{
    BMCWEB_ROUTE(app, "/redfish/v1/AccountService/Roles/")
        .privileges(redfish::privileges::getRoleCollection)
        .methods(boost::beast::http::verb::get)(
            std::bind_front(handleRoleCollectionGet, std::ref(app)));
}

} // namespace redfish