/*
// 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 <boost/container/flat_map.hpp>
#include <node.hpp>
#include <utils/fw_utils.hpp>
#include <utils/json_utils.hpp>
#include <variant>

namespace redfish
{

/**
 * @brief Retrieves computer system properties over dbus
 *
 * @param[in] aResp Shared pointer for completing asynchronous calls
 * @param[in] name  Computer system name from request
 *
 * @return None.
 */
void getComputerSystem(std::shared_ptr<AsyncResp> aResp)
{
    BMCWEB_LOG_DEBUG << "Get available system components.";
    crow::connections::systemBus->async_method_call(
        [aResp{std::move(aResp)}](
            const boost::system::error_code ec,
            const std::vector<std::pair<
                std::string,
                std::vector<std::pair<std::string, std::vector<std::string>>>>>
                &subtree) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error";
                messages::internalError(aResp->res);
                return;
            }
            // Iterate over all retrieved ObjectPaths.
            for (const std::pair<std::string,
                                 std::vector<std::pair<
                                     std::string, std::vector<std::string>>>>
                     &object : subtree)
            {
                const std::string &path = object.first;
                BMCWEB_LOG_DEBUG << "Got path: " << path;
                const std::vector<
                    std::pair<std::string, std::vector<std::string>>>
                    &connectionNames = object.second;
                if (connectionNames.size() < 1)
                {
                    continue;
                }

                // This is not system, so check if it's cpu, dimm, UUID or
                // BiosVer
                for (const auto &connection : connectionNames)
                {
                    for (const auto &interfaceName : connection.second)
                    {
                        if (interfaceName ==
                            "xyz.openbmc_project.Inventory.Item.Dimm")
                        {
                            BMCWEB_LOG_DEBUG
                                << "Found Dimm, now get its properties.";
                            crow::connections::systemBus->async_method_call(
                                [aResp](const boost::system::error_code ec,
                                        const std::vector<
                                            std::pair<std::string, VariantType>>
                                            &properties) {
                                    if (ec)
                                    {
                                        BMCWEB_LOG_ERROR
                                            << "DBUS response error " << ec;
                                        messages::internalError(aResp->res);
                                        return;
                                    }
                                    BMCWEB_LOG_DEBUG << "Got "
                                                     << properties.size()
                                                     << "Dimm properties.";
                                    for (const std::pair<std::string,
                                                         VariantType>
                                             &property : properties)
                                    {
                                        if (property.first == "MemorySizeInKb")
                                        {
                                            const uint64_t *value =
                                                sdbusplus::message::variant_ns::
                                                    get_if<uint64_t>(
                                                        &property.second);
                                            if (value != nullptr)
                                            {
                                                aResp->res.jsonValue
                                                    ["TotalSystemMemoryGi"
                                                     "B"] +=
                                                    *value / (1024 * 1024);
                                                aResp->res
                                                    .jsonValue["MemorySummary"]
                                                              ["Status"]
                                                              ["State"] =
                                                    "Enabled";
                                            }
                                        }
                                    }
                                },
                                connection.first, path,
                                "org.freedesktop.DBus.Properties", "GetAll",
                                "xyz.openbmc_project.Inventory.Item.Dimm");
                        }
                        else if (interfaceName ==
                                 "xyz.openbmc_project.Inventory.Item.Cpu")
                        {
                            BMCWEB_LOG_DEBUG
                                << "Found Cpu, now get its properties.";
                            crow::connections::systemBus->async_method_call(
                                [aResp](const boost::system::error_code ec,
                                        const std::vector<
                                            std::pair<std::string, VariantType>>
                                            &properties) {
                                    if (ec)
                                    {
                                        BMCWEB_LOG_ERROR
                                            << "DBUS response error " << ec;
                                        messages::internalError(aResp->res);
                                        return;
                                    }
                                    BMCWEB_LOG_DEBUG << "Got "
                                                     << properties.size()
                                                     << "Cpu properties.";
                                    for (const auto &property : properties)
                                    {
                                        if (property.first == "ProcessorFamily")
                                        {
                                            const std::string *value =
                                                sdbusplus::message::variant_ns::
                                                    get_if<std::string>(
                                                        &property.second);
                                            if (value != nullptr)
                                            {
                                                nlohmann::json &procSummary =
                                                    aResp->res.jsonValue
                                                        ["ProcessorSumm"
                                                         "ary"];
                                                nlohmann::json &procCount =
                                                    procSummary["Count"];

                                                procCount =
                                                    procCount.get<int>() + 1;
                                                procSummary["Status"]["State"] =
                                                    "Enabled";
                                                procSummary["Model"] = *value;
                                            }
                                        }
                                    }
                                },
                                connection.first, path,
                                "org.freedesktop.DBus.Properties", "GetAll",
                                "xyz.openbmc_project.Inventory.Item.Cpu");
                        }
                        else if (interfaceName ==
                                 "xyz.openbmc_project.Common.UUID")
                        {
                            BMCWEB_LOG_DEBUG
                                << "Found UUID, now get its properties.";
                            crow::connections::systemBus->async_method_call(
                                [aResp](const boost::system::error_code ec,
                                        const std::vector<
                                            std::pair<std::string, VariantType>>
                                            &properties) {
                                    if (ec)
                                    {
                                        BMCWEB_LOG_DEBUG
                                            << "DBUS response error " << ec;
                                        messages::internalError(aResp->res);
                                        return;
                                    }
                                    BMCWEB_LOG_DEBUG << "Got "
                                                     << properties.size()
                                                     << "UUID properties.";
                                    for (const std::pair<std::string,
                                                         VariantType>
                                             &property : properties)
                                    {
                                        if (property.first == "UUID")
                                        {
                                            const std::string *value =
                                                sdbusplus::message::variant_ns::
                                                    get_if<std::string>(
                                                        &property.second);

                                            if (value != nullptr)
                                            {
                                                std::string valueStr = *value;
                                                if (valueStr.size() == 32)
                                                {
                                                    valueStr.insert(8, 1, '-');
                                                    valueStr.insert(13, 1, '-');
                                                    valueStr.insert(18, 1, '-');
                                                    valueStr.insert(23, 1, '-');
                                                }
                                                BMCWEB_LOG_DEBUG << "UUID = "
                                                                 << valueStr;
                                                aResp->res.jsonValue["UUID"] =
                                                    valueStr;
                                            }
                                        }
                                    }
                                },
                                connection.first, path,
                                "org.freedesktop.DBus.Properties", "GetAll",
                                "xyz.openbmc_project.Common.UUID");
                        }
                        else if (interfaceName ==
                                 "xyz.openbmc_project.Inventory.Item.System")
                        {
                            crow::connections::systemBus->async_method_call(
                                [aResp](const boost::system::error_code ec,
                                        const std::vector<
                                            std::pair<std::string, VariantType>>
                                            &propertiesList) {
                                    if (ec)
                                    {
                                        BMCWEB_LOG_ERROR
                                            << "DBUS response error: " << ec;
                                        messages::internalError(aResp->res);
                                        return;
                                    }
                                    BMCWEB_LOG_DEBUG << "Got "
                                                     << propertiesList.size()
                                                     << "properties for system";
                                    for (const std::pair<std::string,
                                                         VariantType>
                                             &property : propertiesList)
                                    {
                                        const std::string &propertyName =
                                            property.first;
                                        if ((propertyName == "PartNumber") ||
                                            (propertyName == "SerialNumber") ||
                                            (propertyName == "Manufacturer") ||
                                            (propertyName == "Model"))
                                        {
                                            const std::string *value =
                                                std::get_if<std::string>(
                                                    &property.second);
                                            if (value != nullptr)
                                            {
                                                aResp->res
                                                    .jsonValue[propertyName] =
                                                    *value;
                                            }
                                        }
                                    }
                                    aResp->res.jsonValue["Name"] = "system";
                                    aResp->res.jsonValue["Id"] =
                                        aResp->res.jsonValue["SerialNumber"];
                                    // Grab the bios version
                                    fw_util::getActiveFwVersion(
                                        aResp, fw_util::biosPurpose,
                                        "BiosVersion");
                                },
                                connection.first, path,
                                "org.freedesktop.DBus.Properties", "GetAll",
                                "xyz.openbmc_project.Inventory.Decorator."
                                "Asset");
                        }
                    }
                }
            }
        },
        "xyz.openbmc_project.ObjectMapper",
        "/xyz/openbmc_project/object_mapper",
        "xyz.openbmc_project.ObjectMapper", "GetSubTree",
        "/xyz/openbmc_project/inventory", int32_t(0),
        std::array<const char *, 5>{
            "xyz.openbmc_project.Inventory.Decorator.Asset",
            "xyz.openbmc_project.Inventory.Item.Cpu",
            "xyz.openbmc_project.Inventory.Item.Dimm",
            "xyz.openbmc_project.Inventory.Item.System",
            "xyz.openbmc_project.Common.UUID",
        });
}

/**
 * @brief Retrieves identify led group properties over dbus
 *
 * @param[in] aResp     Shared pointer for generating response message.
 * @param[in] callback  Callback for process retrieved data.
 *
 * @return None.
 */
template <typename CallbackFunc>
void getLedGroupIdentify(std::shared_ptr<AsyncResp> aResp,
                         CallbackFunc &&callback)
{
    BMCWEB_LOG_DEBUG << "Get led groups";
    crow::connections::systemBus->async_method_call(
        [aResp{std::move(aResp)},
         callback{std::move(callback)}](const boost::system::error_code &ec,
                                        const ManagedObjectsType &resp) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }
            BMCWEB_LOG_DEBUG << "Got " << resp.size() << "led group objects.";
            for (const auto &objPath : resp)
            {
                const std::string &path = objPath.first;
                if (path.rfind("enclosure_identify") != std::string::npos)
                {
                    for (const auto &interface : objPath.second)
                    {
                        if (interface.first == "xyz.openbmc_project.Led.Group")
                        {
                            for (const auto &property : interface.second)
                            {
                                if (property.first == "Asserted")
                                {
                                    const bool *asserted =
                                        std::get_if<bool>(&property.second);
                                    if (nullptr != asserted)
                                    {
                                        callback(*asserted, aResp);
                                    }
                                    else
                                    {
                                        callback(false, aResp);
                                    }
                                }
                            }
                        }
                    }
                }
            }
        },
        "xyz.openbmc_project.LED.GroupManager",
        "/xyz/openbmc_project/led/groups", "org.freedesktop.DBus.ObjectManager",
        "GetManagedObjects");
}

template <typename CallbackFunc>
void getLedIdentify(std::shared_ptr<AsyncResp> aResp, CallbackFunc &&callback)
{
    BMCWEB_LOG_DEBUG << "Get identify led properties";
    crow::connections::systemBus->async_method_call(
        [aResp,
         callback{std::move(callback)}](const boost::system::error_code ec,
                                        const PropertiesType &properties) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }
            BMCWEB_LOG_DEBUG << "Got " << properties.size()
                             << "led properties.";
            std::string output;
            for (const auto &property : properties)
            {
                if (property.first == "State")
                {
                    const std::string *s =
                        std::get_if<std::string>(&property.second);
                    if (nullptr != s)
                    {
                        BMCWEB_LOG_DEBUG << "Identify Led State: " << *s;
                        const auto pos = s->rfind('.');
                        if (pos != std::string::npos)
                        {
                            auto led = s->substr(pos + 1);
                            for (const std::pair<const char *, const char *>
                                     &p :
                                 std::array<
                                     std::pair<const char *, const char *>, 3>{
                                     {{"On", "Lit"},
                                      {"Blink", "Blinking"},
                                      {"Off", "Off"}}})
                            {
                                if (led == p.first)
                                {
                                    output = p.second;
                                }
                            }
                        }
                    }
                }
            }
            callback(output, aResp);
        },
        "xyz.openbmc_project.LED.Controller.identify",
        "/xyz/openbmc_project/led/physical/identify",
        "org.freedesktop.DBus.Properties", "GetAll",
        "xyz.openbmc_project.Led.Physical");
}

/**
 * @brief Retrieves host state properties over dbus
 *
 * @param[in] aResp     Shared pointer for completing asynchronous calls.
 *
 * @return None.
 */
void getHostState(std::shared_ptr<AsyncResp> aResp)
{
    BMCWEB_LOG_DEBUG << "Get host information.";
    crow::connections::systemBus->async_method_call(
        [aResp{std::move(aResp)}](const boost::system::error_code ec,
                                  const std::variant<std::string> &hostState) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }

            const std::string *s = std::get_if<std::string>(&hostState);
            BMCWEB_LOG_DEBUG << "Host state: " << *s;
            if (s != nullptr)
            {
                // Verify Host State
                if (*s == "xyz.openbmc_project.State.Host.HostState.Running")
                {
                    aResp->res.jsonValue["PowerState"] = "On";
                    aResp->res.jsonValue["Status"]["State"] = "Enabled";
                }
                else
                {
                    aResp->res.jsonValue["PowerState"] = "Off";
                    aResp->res.jsonValue["Status"]["State"] = "Disabled";
                }
            }
        },
        "xyz.openbmc_project.State.Host", "/xyz/openbmc_project/state/host0",
        "org.freedesktop.DBus.Properties", "Get",
        "xyz.openbmc_project.State.Host", "CurrentHostState");
}

/**
 * @brief Traslates boot source DBUS property value to redfish.
 *
 * @param[in] dbusSource    The boot source in DBUS speak.
 *
 * @return Returns as a string, the boot source in Redfish terms. If translation
 * cannot be done, returns an empty string.
 */
static std::string dbusToRfBootSource(const std::string &dbusSource)
{
    if (dbusSource == "xyz.openbmc_project.Control.Boot.Source.Sources.Default")
    {
        return "None";
    }
    else if (dbusSource ==
             "xyz.openbmc_project.Control.Boot.Source.Sources.Disk")
    {
        return "Hdd";
    }
    else if (dbusSource ==
             "xyz.openbmc_project.Control.Boot.Source.Sources.ExternalMedia")
    {
        return "Cd";
    }
    else if (dbusSource ==
             "xyz.openbmc_project.Control.Boot.Source.Sources.Network")
    {
        return "Pxe";
    }
    else if (dbusSource ==
             "xyz.openbmc_project.Control.Boot.Source.Sources.Removable")
    {
        return "Usb";
    }
    else
    {
        return "";
    }
}

/**
 * @brief Traslates boot mode DBUS property value to redfish.
 *
 * @param[in] dbusMode    The boot mode in DBUS speak.
 *
 * @return Returns as a string, the boot mode in Redfish terms. If translation
 * cannot be done, returns an empty string.
 */
static std::string dbusToRfBootMode(const std::string &dbusMode)
{
    if (dbusMode == "xyz.openbmc_project.Control.Boot.Mode.Modes.Regular")
    {
        return "None";
    }
    else if (dbusMode == "xyz.openbmc_project.Control.Boot.Mode.Modes.Safe")
    {
        return "Diags";
    }
    else if (dbusMode == "xyz.openbmc_project.Control.Boot.Mode.Modes.Setup")
    {
        return "BiosSetup";
    }
    else
    {
        return "";
    }
}

/**
 * @brief Traslates boot source from Redfish to DBUS property value.
 *
 * @param[in] rfSource    The boot source in Redfish.
 *
 * @return Returns as a string, the boot source as expected by DBUS.
 * If translation cannot be done, returns an empty string.
 */
static std::string rfToDbusBootSource(const std::string &rfSource)
{
    if (rfSource == "None")
    {
        return "xyz.openbmc_project.Control.Boot.Source.Sources.Default";
    }
    else if (rfSource == "Hdd")
    {
        return "xyz.openbmc_project.Control.Boot.Source.Sources.Disk";
    }
    else if (rfSource == "Cd")
    {
        return "xyz.openbmc_project.Control.Boot.Source.Sources.ExternalMedia";
    }
    else if (rfSource == "Pxe")
    {
        return "xyz.openbmc_project.Control.Boot.Source.Sources.Network";
    }
    else if (rfSource == "Usb")
    {
        return "xyz.openbmc_project.Control.Boot.Source.Sources.Removable";
    }
    else
    {
        return "";
    }
}

/**
 * @brief Traslates boot mode from Redfish to DBUS property value.
 *
 * @param[in] rfMode    The boot mode in Redfish.
 *
 * @return Returns as a string, the boot mode as expected by DBUS.
 * If translation cannot be done, returns an empty string.
 */
static std::string rfToDbusBootMode(const std::string &rfMode)
{
    if (rfMode == "None")
    {
        return "xyz.openbmc_project.Control.Boot.Mode.Modes.Regular";
    }
    else if (rfMode == "Diags")
    {
        return "xyz.openbmc_project.Control.Boot.Mode.Modes.Safe";
    }
    else if (rfMode == "BiosSetup")
    {
        return "xyz.openbmc_project.Control.Boot.Mode.Modes.Setup";
    }
    else
    {
        return "";
    }
}

/**
 * @brief Retrieves boot mode over DBUS and fills out the response
 *
 * @param[in] aResp         Shared pointer for generating response message.
 * @param[in] bootDbusObj   The dbus object to query for boot properties.
 *
 * @return None.
 */
static void getBootMode(std::shared_ptr<AsyncResp> aResp,
                        std::string bootDbusObj)
{
    crow::connections::systemBus->async_method_call(
        [aResp](const boost::system::error_code ec,
                const std::variant<std::string> &bootMode) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }

            const std::string *bootModeStr =
                std::get_if<std::string>(&bootMode);

            if (!bootModeStr)
            {
                messages::internalError(aResp->res);
                return;
            }

            BMCWEB_LOG_DEBUG << "Boot mode: " << *bootModeStr;

            // TODO (Santosh): Do we need to support override mode?
            aResp->res.jsonValue["Boot"]["BootSourceOverrideMode"] = "Legacy";
            aResp->res.jsonValue["Boot"]["BootSourceOverrideTarget@Redfish."
                                         "AllowableValues"] = {
                "None", "Pxe", "Hdd", "Cd", "Diags", "BiosSetup"};

            if (*bootModeStr !=
                "xyz.openbmc_project.Control.Boot.Mode.Modes.Regular")
            {
                auto rfMode = dbusToRfBootMode(*bootModeStr);
                if (!rfMode.empty())
                {
                    aResp->res.jsonValue["Boot"]["BootSourceOverrideTarget"] =
                        rfMode;
                }
            }

            // If the BootSourceOverrideTarget is still "None" at the end,
            // reset the BootSourceOverrideEnabled to indicate that
            // overrides are disabled
            if (aResp->res.jsonValue["Boot"]["BootSourceOverrideTarget"] ==
                "None")
            {
                aResp->res.jsonValue["Boot"]["BootSourceOverrideEnabled"] =
                    "Disabled";
            }
        },
        "xyz.openbmc_project.Settings", bootDbusObj,
        "org.freedesktop.DBus.Properties", "Get",
        "xyz.openbmc_project.Control.Boot.Mode", "BootMode");
}

/**
 * @brief Retrieves boot source over DBUS
 *
 * @param[in] aResp         Shared pointer for generating response message.
 * @param[in] oneTimeEnable Boolean to indicate boot properties are one-time.
 *
 * @return None.
 */
static void getBootSource(std::shared_ptr<AsyncResp> aResp, bool oneTimeEnabled)
{
    std::string bootDbusObj =
        oneTimeEnabled ? "/xyz/openbmc_project/control/host0/boot/one_time"
                       : "/xyz/openbmc_project/control/host0/boot";

    BMCWEB_LOG_DEBUG << "Is one time: " << oneTimeEnabled;
    aResp->res.jsonValue["Boot"]["BootSourceOverrideEnabled"] =
        (oneTimeEnabled) ? "Once" : "Continuous";

    crow::connections::systemBus->async_method_call(
        [aResp, bootDbusObj](const boost::system::error_code ec,
                             const std::variant<std::string> &bootSource) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }

            const std::string *bootSourceStr =
                std::get_if<std::string>(&bootSource);

            if (!bootSourceStr)
            {
                messages::internalError(aResp->res);
                return;
            }
            BMCWEB_LOG_DEBUG << "Boot source: " << *bootSourceStr;

            auto rfSource = dbusToRfBootSource(*bootSourceStr);
            if (!rfSource.empty())
            {
                aResp->res.jsonValue["Boot"]["BootSourceOverrideTarget"] =
                    rfSource;
            }
        },
        "xyz.openbmc_project.Settings", bootDbusObj,
        "org.freedesktop.DBus.Properties", "Get",
        "xyz.openbmc_project.Control.Boot.Source", "BootSource");
    getBootMode(std::move(aResp), std::move(bootDbusObj));
}

/**
 * @brief Retrieves "One time" enabled setting over DBUS and calls function to
 * get boot source and boot mode.
 *
 * @param[in] aResp     Shared pointer for generating response message.
 *
 * @return None.
 */
static void getBootProperties(std::shared_ptr<AsyncResp> aResp)
{
    BMCWEB_LOG_DEBUG << "Get boot information.";

    crow::connections::systemBus->async_method_call(
        [aResp{std::move(aResp)}](
            const boost::system::error_code ec,
            const sdbusplus::message::variant<bool> &oneTime) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }

            const bool *oneTimePtr = std::get_if<bool>(&oneTime);

            if (!oneTimePtr)
            {
                messages::internalError(aResp->res);
                return;
            }
            getBootSource(aResp, *oneTimePtr);
        },
        "xyz.openbmc_project.Settings",
        "/xyz/openbmc_project/control/host0/boot/one_time",
        "org.freedesktop.DBus.Properties", "Get",
        "xyz.openbmc_project.Object.Enable", "Enabled");
}

/**
 * @brief Sets boot properties into DBUS object(s).
 *
 * @param[in] aResp           Shared pointer for generating response message.
 * @param[in] oneTimeEnabled  Is "one-time" setting already enabled.
 * @param[in] bootSource      The boot source to set.
 * @param[in] bootEnable      The source override "enable" to set.
 *
 * @return None.
 */
static void setBootModeOrSource(std::shared_ptr<AsyncResp> aResp,
                                bool oneTimeEnabled,
                                std::optional<std::string> bootSource,
                                std::optional<std::string> bootEnable)
{
    if (bootEnable && (bootEnable != "Once") && (bootEnable != "Continuous") &&
        (bootEnable != "Disabled"))
    {
        BMCWEB_LOG_DEBUG << "Unsupported value for BootSourceOverrideEnabled: "
                         << *bootEnable;
        messages::propertyValueNotInList(aResp->res, *bootEnable,
                                         "BootSourceOverrideEnabled");
        return;
    }

    bool oneTimeSetting = oneTimeEnabled;
    // Validate incoming parameters
    if (bootEnable)
    {
        if (*bootEnable == "Once")
        {
            oneTimeSetting = true;
        }
        else if (*bootEnable == "Continuous")
        {
            oneTimeSetting = false;
        }
        else if (*bootEnable == "Disabled")
        {
            oneTimeSetting = false;
        }
        else
        {

            BMCWEB_LOG_DEBUG << "Unsupported value for "
                                "BootSourceOverrideEnabled: "
                             << *bootEnable;
            messages::propertyValueNotInList(aResp->res, *bootEnable,
                                             "BootSourceOverrideEnabled");
            return;
        }
    }
    std::string bootSourceStr;
    std::string bootModeStr;
    if (bootSource)
    {
        bootSourceStr = rfToDbusBootSource(*bootSource);
        bootModeStr = rfToDbusBootMode(*bootSource);

        BMCWEB_LOG_DEBUG << "DBUS boot source: " << bootSourceStr;
        BMCWEB_LOG_DEBUG << "DBUS boot mode: " << bootModeStr;

        if (bootSourceStr.empty() && bootModeStr.empty())
        {
            BMCWEB_LOG_DEBUG << "Invalid property value for "
                                "BootSourceOverrideTarget: "
                             << *bootSource;
            messages::propertyValueNotInList(aResp->res, *bootSource,
                                             "BootSourceTargetOverride");
            return;
        }
    }
    const char *bootObj =
        oneTimeSetting ? "/xyz/openbmc_project/control/host0/boot/one_time"
                       : "/xyz/openbmc_project/control/host0/boot";
    // Figure out what properties to set
    if (bootEnable && (*bootEnable == "Disabled"))
    {
        BMCWEB_LOG_DEBUG << "Boot source override will be disabled";
        // Request to only turn OFF/ON enabled, if turning enabled OFF, need
        // to reset the source and mode too. If turning it ON, we only need
        // to set the enabled property
        bootSourceStr =
            "xyz.openbmc_project.Control.Boot.Source.Sources.Default";
        bootModeStr = "xyz.openbmc_project.Control.Boot.Mode.Modes.Regular";
    }
    else if (bootSource)
    {
        // Source target specified
        BMCWEB_LOG_DEBUG << "Boot source: " << *bootSource;
        // Figure out which DBUS interface and property to use
        bootSourceStr = rfToDbusBootSource(*bootSource);
        bootModeStr = rfToDbusBootMode(*bootSource);

        BMCWEB_LOG_DEBUG << "DBUS boot source: " << bootSourceStr;
        BMCWEB_LOG_DEBUG << "DBUS boot mode: " << bootModeStr;

        if (bootSourceStr.empty() && bootModeStr.empty())
        {
            BMCWEB_LOG_DEBUG << "Invalid property value for "
                                "BootSourceOverrideTarget: "
                             << *bootSource;
            messages::propertyValueNotInList(aResp->res, *bootSource,
                                             "BootSourceTargetOverride");
            return;
        }

        if (!bootSourceStr.empty())
        {
            // If setting to anything other than default, also reset boot
            // mode property
            if (bootSourceStr !=
                "xyz.openbmc_project.Control.Boot.Source.Sources.Default")
            {
                bootModeStr =
                    "xyz.openbmc_project.Control.Boot.Mode.Modes.Regular";
            }
        }
        else // if (!bootModeStr.empty())
        {
            // If setting to anything other than default, also reset boot
            // source property
            if (bootModeStr !=
                "xyz.openbmc_project.Control.Boot.Mode.Modes.Regular")
            {
                bootSourceStr =
                    "xyz.openbmc_project.Control.Boot.Source.Sources.Default";
            }
        }
    }
    if (!bootSourceStr.empty())
    {
        crow::connections::systemBus->async_method_call(
            [aResp](const boost::system::error_code ec) {
                if (ec)
                {
                    BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                    messages::internalError(aResp->res);
                    return;
                }
                BMCWEB_LOG_DEBUG << "Boot source update done.";
            },
            "xyz.openbmc_project.Settings", bootObj,
            "org.freedesktop.DBus.Properties", "Set",
            "xyz.openbmc_project.Control.Boot.Source", "BootSource",
            std::variant<std::string>(bootSourceStr));
    }
    if (!bootModeStr.empty())
    {
        crow::connections::systemBus->async_method_call(
            [aResp](const boost::system::error_code ec) {
                if (ec)
                {
                    BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                    messages::internalError(aResp->res);
                    return;
                }
                BMCWEB_LOG_DEBUG << "Boot mode update done.";
            },
            "xyz.openbmc_project.Settings", bootObj,
            "org.freedesktop.DBus.Properties", "Set",
            "xyz.openbmc_project.Control.Boot.Mode", "BootMode",
            std::variant<std::string>(bootModeStr));
    }
    crow::connections::systemBus->async_method_call(
        [aResp{std::move(aResp)}](const boost::system::error_code ec) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }
            BMCWEB_LOG_DEBUG << "Boot enable update done.";
        },
        "xyz.openbmc_project.Settings",
        "/xyz/openbmc_project/control/host0/boot/one_time",
        "org.freedesktop.DBus.Properties", "Set",
        "xyz.openbmc_project.Object.Enable", "Enabled",
        std::variant<bool>(oneTimeSetting));
}

/**
 * @brief Retrieves "One time" enabled setting over DBUS and calls function to
 * set boot source/boot mode properties.
 *
 * @param[in] aResp      Shared pointer for generating response message.
 * @param[in] bootSource The boot source from incoming RF request.
 * @param[in] bootEnable The boot override enable from incoming RF request.
 *
 * @return None.
 */
static void setBootProperties(std::shared_ptr<AsyncResp> aResp,
                              std::optional<std::string> bootSource,
                              std::optional<std::string> bootEnable)
{
    BMCWEB_LOG_DEBUG << "Set boot information.";

    crow::connections::systemBus->async_method_call(
        [aResp{std::move(aResp)}, bootSource{std::move(bootSource)},
         bootEnable{std::move(bootEnable)}](
            const boost::system::error_code ec,
            const sdbusplus::message::variant<bool> &oneTime) {
            if (ec)
            {
                BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                messages::internalError(aResp->res);
                return;
            }

            const bool *oneTimePtr = std::get_if<bool>(&oneTime);

            if (!oneTimePtr)
            {
                messages::internalError(aResp->res);
                return;
            }

            BMCWEB_LOG_DEBUG << "Got one time: " << *oneTimePtr;

            setBootModeOrSource(aResp, *oneTimePtr, std::move(bootSource),
                                std::move(bootEnable));
        },
        "xyz.openbmc_project.Settings",
        "/xyz/openbmc_project/control/host0/boot/one_time",
        "org.freedesktop.DBus.Properties", "Get",
        "xyz.openbmc_project.Object.Enable", "Enabled");
}

/**
 * SystemsCollection derived class for delivering ComputerSystems Collection
 * Schema
 */
class SystemsCollection : public Node
{
  public:
    SystemsCollection(CrowApp &app) : Node(app, "/redfish/v1/Systems/")
    {
        entityPrivileges = {
            {boost::beast::http::verb::get, {{"Login"}}},
            {boost::beast::http::verb::head, {{"Login"}}},
            {boost::beast::http::verb::patch, {{"ConfigureComponents"}}},
            {boost::beast::http::verb::put, {{"ConfigureComponents"}}},
            {boost::beast::http::verb::delete_, {{"ConfigureComponents"}}},
            {boost::beast::http::verb::post, {{"ConfigureComponents"}}}};
    }

  private:
    void doGet(crow::Response &res, const crow::Request &req,
               const std::vector<std::string> &params) override
    {
        res.jsonValue["@odata.type"] =
            "#ComputerSystemCollection.ComputerSystemCollection";
        res.jsonValue["@odata.id"] = "/redfish/v1/Systems";
        res.jsonValue["@odata.context"] =
            "/redfish/v1/"
            "$metadata#ComputerSystemCollection.ComputerSystemCollection";
        res.jsonValue["Name"] = "Computer System Collection";
        res.jsonValue["Members"] = {
            {{"@odata.id", "/redfish/v1/Systems/system"}}};
        res.jsonValue["Members@odata.count"] = 1;
        res.end();
    }
};

/**
 * SystemActionsReset class supports handle POST method for Reset action.
 * The class retrieves and sends data directly to D-Bus.
 */
class SystemActionsReset : public Node
{
  public:
    SystemActionsReset(CrowApp &app) :
        Node(app, "/redfish/v1/Systems/system/Actions/ComputerSystem.Reset/")
    {
        entityPrivileges = {
            {boost::beast::http::verb::post, {{"ConfigureComponents"}}}};
    }

  private:
    /**
     * Function handles POST method request.
     * Analyzes POST body message before sends Reset request data to D-Bus.
     */
    void doPost(crow::Response &res, const crow::Request &req,
                const std::vector<std::string> &params) override
    {
        auto asyncResp = std::make_shared<AsyncResp>(res);

        std::string resetType;
        if (!json_util::readJson(req, res, "ResetType", resetType))
        {
            return;
        }

        // Get the command and host vs. chassis
        std::string command;
        bool hostCommand;
        if (resetType == "On")
        {
            command = "xyz.openbmc_project.State.Host.Transition.On";
            hostCommand = true;
        }
        else if (resetType == "ForceOff")
        {
            command = "xyz.openbmc_project.State.Chassis.Transition.Off";
            hostCommand = false;
        }
        else if (resetType == "ForceOn")
        {
            command = "xyz.openbmc_project.State.Host.Transition.On";
            hostCommand = true;
        }
        else if (resetType == "ForceRestart")
        {
            command = "xyz.openbmc_project.State.Chassis.Transition.Reset";
            hostCommand = false;
        }
        else if (resetType == "GracefulShutdown")
        {
            command = "xyz.openbmc_project.State.Host.Transition.Off";
            hostCommand = true;
        }
        else if (resetType == "GracefulRestart")
        {
            command = "xyz.openbmc_project.State.Host.Transition.Reboot";
            hostCommand = true;
        }
        else if (resetType == "PowerCycle")
        {
            command = "xyz.openbmc_project.State.Chassis.Transition.PowerCycle";
            hostCommand = false;
        }
        else
        {
            messages::actionParameterUnknown(res, "Reset", resetType);
            return;
        }

        if (hostCommand)
        {
            crow::connections::systemBus->async_method_call(
                [asyncResp, resetType](const boost::system::error_code ec) {
                    if (ec)
                    {
                        BMCWEB_LOG_ERROR << "D-Bus responses error: " << ec;
                        if (ec.value() == boost::asio::error::invalid_argument)
                        {
                            messages::actionParameterNotSupported(
                                asyncResp->res, resetType, "Reset");
                        }
                        else
                        {
                            messages::internalError(asyncResp->res);
                        }
                        return;
                    }
                    messages::success(asyncResp->res);
                },
                "xyz.openbmc_project.State.Host",
                "/xyz/openbmc_project/state/host0",
                "org.freedesktop.DBus.Properties", "Set",
                "xyz.openbmc_project.State.Host", "RequestedHostTransition",
                std::variant<std::string>{command});
        }
        else
        {
            crow::connections::systemBus->async_method_call(
                [asyncResp, resetType](const boost::system::error_code ec) {
                    if (ec)
                    {
                        BMCWEB_LOG_ERROR << "D-Bus responses error: " << ec;
                        if (ec.value() == boost::asio::error::invalid_argument)
                        {
                            messages::actionParameterNotSupported(
                                asyncResp->res, resetType, "Reset");
                        }
                        else
                        {
                            messages::internalError(asyncResp->res);
                        }
                        return;
                    }
                    messages::success(asyncResp->res);
                },
                "xyz.openbmc_project.State.Chassis",
                "/xyz/openbmc_project/state/chassis0",
                "org.freedesktop.DBus.Properties", "Set",
                "xyz.openbmc_project.State.Chassis", "RequestedPowerTransition",
                std::variant<std::string>{command});
        }
    }
};

/**
 * Systems derived class for delivering Computer Systems Schema.
 */
class Systems : public Node
{
  public:
    /*
     * Default Constructor
     */
    Systems(CrowApp &app) : Node(app, "/redfish/v1/Systems/system/")
    {
        entityPrivileges = {
            {boost::beast::http::verb::get, {{"Login"}}},
            {boost::beast::http::verb::head, {{"Login"}}},
            {boost::beast::http::verb::patch, {{"ConfigureComponents"}}},
            {boost::beast::http::verb::put, {{"ConfigureComponents"}}},
            {boost::beast::http::verb::delete_, {{"ConfigureComponents"}}},
            {boost::beast::http::verb::post, {{"ConfigureComponents"}}}};
    }

  private:
    /**
     * Functions triggers appropriate requests on DBus
     */
    void doGet(crow::Response &res, const crow::Request &req,
               const std::vector<std::string> &params) override
    {
        res.jsonValue["@odata.type"] = "#ComputerSystem.v1_6_0.ComputerSystem";
        res.jsonValue["@odata.context"] =
            "/redfish/v1/$metadata#ComputerSystem.ComputerSystem";
        res.jsonValue["Name"] = "Computer System";
        res.jsonValue["Id"] = "system";
        res.jsonValue["SystemType"] = "Physical";
        res.jsonValue["Description"] = "Computer System";
        res.jsonValue["ProcessorSummary"]["Count"] = 0;
        res.jsonValue["ProcessorSummary"]["Status"]["State"] = "Disabled";
        res.jsonValue["MemorySummary"]["TotalSystemMemoryGiB"] = int(0);
        res.jsonValue["MemorySummary"]["Status"]["State"] = "Disabled";
        res.jsonValue["@odata.id"] = "/redfish/v1/Systems/system";

        res.jsonValue["Processors"] = {
            {"@odata.id", "/redfish/v1/Systems/system/Processors"}};
        res.jsonValue["Memory"] = {
            {"@odata.id", "/redfish/v1/Systems/system/Memory"}};

        // TODO Need to support ForceRestart.
        res.jsonValue["Actions"]["#ComputerSystem.Reset"] = {
            {"target",
             "/redfish/v1/Systems/system/Actions/ComputerSystem.Reset"},
            {"ResetType@Redfish.AllowableValues",
             {"On", "ForceOff", "ForceOn", "ForceRestart", "GracefulRestart",
              "GracefulShutdown", "PowerCycle"}}};

        res.jsonValue["LogServices"] = {
            {"@odata.id", "/redfish/v1/Systems/system/LogServices"}};

        auto asyncResp = std::make_shared<AsyncResp>(res);

        getLedGroupIdentify(
            asyncResp,
            [&](const bool &asserted, const std::shared_ptr<AsyncResp> &aResp) {
                if (asserted)
                {
                    // If led group is asserted, then another call is needed to
                    // get led status
                    getLedIdentify(
                        aResp, [](const std::string &ledStatus,
                                  const std::shared_ptr<AsyncResp> &aResp) {
                            if (!ledStatus.empty())
                            {
                                aResp->res.jsonValue["IndicatorLED"] =
                                    ledStatus;
                            }
                        });
                }
                else
                {
                    aResp->res.jsonValue["IndicatorLED"] = "Off";
                }
            });
        getComputerSystem(asyncResp);
        getHostState(asyncResp);
        getBootProperties(asyncResp);
    }

    void doPatch(crow::Response &res, const crow::Request &req,
                 const std::vector<std::string> &params) override
    {
        std::optional<std::string> indicatorLed;
        std::optional<nlohmann::json> bootProps;
        if (!json_util::readJson(req, res, "IndicatorLED", indicatorLed, "Boot",
                                 bootProps))
        {
            return;
        }

        auto asyncResp = std::make_shared<AsyncResp>(res);
        asyncResp->res.result(boost::beast::http::status::no_content);

        if (bootProps)
        {
            std::optional<std::string> bootSource;
            std::optional<std::string> bootEnable;

            if (!json_util::readJson(*bootProps, asyncResp->res,
                                     "BootSourceOverrideTarget", bootSource,
                                     "BootSourceOverrideEnabled", bootEnable))
            {
                return;
            }
            setBootProperties(asyncResp, std::move(bootSource),
                              std::move(bootEnable));
        }
        if (indicatorLed)
        {
            std::string dbusLedState;
            if (*indicatorLed == "Lit")
            {
                dbusLedState = "xyz.openbmc_project.Led.Physical.Action.On";
            }
            else if (*indicatorLed == "Blinking")
            {
                dbusLedState = "xyz.openbmc_project.Led.Physical.Action.Blink";
            }
            else if (*indicatorLed == "Off")
            {
                dbusLedState = "xyz.openbmc_project.Led.Physical.Action.Off";
            }
            else
            {
                messages::propertyValueNotInList(res, *indicatorLed,
                                                 "IndicatorLED");
                return;
            }

            // Update led group
            BMCWEB_LOG_DEBUG << "Update led group.";
            crow::connections::systemBus->async_method_call(
                [asyncResp](const boost::system::error_code ec) {
                    if (ec)
                    {
                        BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                        messages::internalError(asyncResp->res);
                        return;
                    }
                    BMCWEB_LOG_DEBUG << "Led group update done.";
                },
                "xyz.openbmc_project.LED.GroupManager",
                "/xyz/openbmc_project/led/groups/enclosure_identify",
                "org.freedesktop.DBus.Properties", "Set",
                "xyz.openbmc_project.Led.Group", "Asserted",
                std::variant<bool>(
                    (dbusLedState ==
                             "xyz.openbmc_project.Led.Physical.Action.Off"
                         ? false
                         : true)));
            // Update identify led status
            BMCWEB_LOG_DEBUG << "Update led SoftwareInventoryCollection.";
            crow::connections::systemBus->async_method_call(
                [asyncResp{std::move(asyncResp)},
                 indicatorLed{std::move(*indicatorLed)}](
                    const boost::system::error_code ec) {
                    if (ec)
                    {
                        BMCWEB_LOG_DEBUG << "DBUS response error " << ec;
                        messages::internalError(asyncResp->res);
                        return;
                    }
                    BMCWEB_LOG_DEBUG << "Led state update done.";
                },
                "xyz.openbmc_project.LED.Controller.identify",
                "/xyz/openbmc_project/led/physical/identify",
                "org.freedesktop.DBus.Properties", "Set",
                "xyz.openbmc_project.Led.Physical", "State",
                std::variant<std::string>(dbusLedState));
        }
    }
};
} // namespace redfish