/**
 * @file llavatarpropertiesprocessor.cpp
 * @brief LLAvatarPropertiesProcessor class implementation
 *
 * $LicenseInfo:firstyear=2001&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2010, Linden Research, Inc.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation;
 * version 2.1 of the License only.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
 *
 * Linden Research, Inc., 945 Battery Street, San Francisco, CA  94111  USA
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"

#include "llavatarpropertiesprocessor.h"

// Viewer includes
#include "llagent.h"
#include "llagentpicksinfo.h"
#include "lldateutil.h"
#include "llviewergenericmessage.h"
#include "llstartup.h"

// Linden library includes
#include "llavataractions.h" // for getProfileUrl
#include "lldate.h"
#include "lltrans.h"
#include "llui.h"               // LLUI::getLanguage()
#include "message.h"
#include "llappviewer.h"

LLAvatarPropertiesProcessor::LLAvatarPropertiesProcessor()
{
}

LLAvatarPropertiesProcessor::~LLAvatarPropertiesProcessor()
{
}

void LLAvatarPropertiesProcessor::addObserver(const LLUUID& avatar_id, LLAvatarPropertiesObserver* observer)
{
    if (!observer)
        return;

    // Check if that observer is already in mObservers for that avatar_id
    using pair = std::pair<LLUUID, LLAvatarPropertiesObserver*>;
    observer_multimap_t::iterator begin = mObservers.begin();
    observer_multimap_t::iterator end = mObservers.end();
    observer_multimap_t::iterator it = std::find_if(begin, end, [&](const pair& p)
        {
            return p.first == avatar_id && p.second == observer;
        });

    // IAN BUG this should update the observer's UUID if this is a dupe - sent to PE
    if (it == end)
    {
        mObservers.emplace(avatar_id, observer);
    }
}

void LLAvatarPropertiesProcessor::removeObserver(const LLUUID& avatar_id, LLAvatarPropertiesObserver* observer)
{
    if (!observer)
    {
        return;
    }

    // Check if that observer is in mObservers for that avatar_id
    using pair = std::pair<LLUUID, LLAvatarPropertiesObserver*>;
    observer_multimap_t::iterator begin = mObservers.begin();
    observer_multimap_t::iterator end = mObservers.end();
    observer_multimap_t::iterator it = std::find_if(begin, end, [&](const pair& p)
        {
            return p.first == avatar_id && p.second == observer;
        });

    if (it != end)
    {
        mObservers.erase(it);
    }
}

void LLAvatarPropertiesProcessor::sendRequest(const LLUUID& avatar_id, EAvatarProcessorType type, const std::string &method)
{
    // this is the startup state when send_complete_agent_movement() message is sent.
    // Before this messages won't work so don't bother trying
    if (LLStartUp::getStartupState() <= STATE_AGENT_SEND)
    {
        return;
    }

    if (avatar_id.isNull())
    {
        return;
    }

    // Suppress duplicate requests while waiting for a response from the network
    if (isPendingRequest(avatar_id, type))
    {
        // waiting for a response, don't re-request
        return;
    }

    // Try to send HTTP request if cap_url is available
    if (type == APT_PROPERTIES)
    {
        std::string cap_url = gAgent.getRegionCapability("AgentProfile");
        if (!cap_url.empty())
        {
            initAgentProfileCapRequest(avatar_id, cap_url, type);
        }
        else
        {
            // Don't sent UDP request for APT_PROPERTIES
            LL_WARNS() << "No cap_url for APT_PROPERTIES, request for " << avatar_id << " is not sent" << LL_ENDL;
        }
        return;
    }

    // Send UDP request
    if (type == APT_PROPERTIES_LEGACY)
    {
        sendAvatarPropertiesRequestMessage(avatar_id);
    }
    else
    {
        sendGenericRequest(avatar_id, type, method);
    }
}

void LLAvatarPropertiesProcessor::sendGenericRequest(const LLUUID& avatar_id, EAvatarProcessorType type, const std::string &method)
{
    // indicate we're going to make a request
    addPendingRequest(avatar_id, type);

    std::vector<std::string> strings{ avatar_id.asString() };
    send_generic_message(method, strings);
}

void LLAvatarPropertiesProcessor::sendAvatarPropertiesRequestMessage(const LLUUID& avatar_id)
{
    addPendingRequest(avatar_id, APT_PROPERTIES_LEGACY);

    LLMessageSystem *msg = gMessageSystem;

    msg->newMessageFast(_PREHASH_AvatarPropertiesRequest);
    msg->nextBlockFast(_PREHASH_AgentData);
    msg->addUUIDFast(_PREHASH_AgentID, gAgentID);
    msg->addUUIDFast(_PREHASH_SessionID, gAgentSessionID);
    msg->addUUIDFast(_PREHASH_AvatarID, avatar_id);
    gAgent.sendReliableMessage();
}

void LLAvatarPropertiesProcessor::initAgentProfileCapRequest(const LLUUID& avatar_id, const std::string& cap_url, EAvatarProcessorType type)
{
    addPendingRequest(avatar_id, type);
    LLCoros::instance().launch("requestAgentUserInfoCoro",
        [cap_url, avatar_id, type]() { requestAvatarPropertiesCoro(cap_url, avatar_id, type); });
}

void LLAvatarPropertiesProcessor::sendAvatarPropertiesRequest(const LLUUID& avatar_id)
{
    sendRequest(avatar_id, APT_PROPERTIES, "AvatarPropertiesRequest");
}

void LLAvatarPropertiesProcessor::sendAvatarLegacyPropertiesRequest(const LLUUID& avatar_id)
{
    sendRequest(avatar_id, APT_PROPERTIES_LEGACY, "AvatarPropertiesRequest");
}

void LLAvatarPropertiesProcessor::sendAvatarTexturesRequest(const LLUUID& avatar_id)
{
    sendGenericRequest(avatar_id, APT_TEXTURES, "avatartexturesrequest");
    // No response expected.
    removePendingRequest(avatar_id, APT_TEXTURES);
}

void LLAvatarPropertiesProcessor::sendAvatarClassifiedsRequest(const LLUUID& avatar_id)
{
    sendGenericRequest(avatar_id, APT_CLASSIFIEDS, "avatarclassifiedsrequest");
}

//static
std::string LLAvatarPropertiesProcessor::accountType(const LLAvatarData* avatar_data)
{
    // If you have a special account, like M Linden ("El Jefe!")
    // return an untranslated "special" string
    if (!avatar_data->caption_text.empty())
    {
        return avatar_data->caption_text;
    }
    const char* const ACCT_TYPE[] = {
        "AcctTypeResident",
        "AcctTypeTrial",
        "AcctTypeCharterMember",
        "AcctTypeEmployee"
    };
    U8 caption_max = (U8)LL_ARRAY_SIZE(ACCT_TYPE)-1;
    U8 caption_index = llclamp(avatar_data->caption_index, (U8)0, caption_max);
    return LLTrans::getString(ACCT_TYPE[caption_index]);
}

//static
std::string LLAvatarPropertiesProcessor::paymentInfo(const LLAvatarData* avatar_data)
{
    // Special accounts like M Linden don't have payment info revealed.
    if (!avatar_data->caption_text.empty())
        return "";

    // Linden employees don't have payment info revealed
    constexpr S32 LINDEN_EMPLOYEE_INDEX = 3;
    if (avatar_data->caption_index == LINDEN_EMPLOYEE_INDEX)
        return "";

    bool transacted = (avatar_data->flags & AVATAR_TRANSACTED);
    bool identified = (avatar_data->flags & AVATAR_IDENTIFIED);
    // Not currently getting set in dataserver/lldataavatar.cpp for privacy considerations
    //bool age_verified = (avatar_data->flags & AVATAR_AGEVERIFIED);

    const char* payment_text;
    if (transacted)
    {
        payment_text = "PaymentInfoUsed";
    }
    else if (identified)
    {
        payment_text = "PaymentInfoOnFile";
    }
    else
    {
        payment_text = "NoPaymentInfoOnFile";
    }
    return LLTrans::getString(payment_text);
}

//static
bool LLAvatarPropertiesProcessor::hasPaymentInfoOnFile(const LLAvatarData* avatar_data)
{
    // Special accounts like M Linden don't have payment info revealed.
    if (!avatar_data->caption_text.empty())
        return true;

    // Linden employees don't have payment info revealed
    constexpr S32 LINDEN_EMPLOYEE_INDEX = 3;
    if (avatar_data->caption_index == LINDEN_EMPLOYEE_INDEX)
        return true;

    return ((avatar_data->flags & AVATAR_TRANSACTED) || (avatar_data->flags & AVATAR_IDENTIFIED));
}

// static
void LLAvatarPropertiesProcessor::requestAvatarPropertiesCoro(std::string cap_url, LLUUID avatar_id, EAvatarProcessorType type)
{
    LLAvatarPropertiesProcessor& inst = instance();

    LLCore::HttpRequest::policy_t httpPolicy(LLCore::HttpRequest::DEFAULT_POLICY_ID);
    LLCoreHttpUtil::HttpCoroutineAdapter::ptr_t
        httpAdapter(new LLCoreHttpUtil::HttpCoroutineAdapter("requestAvatarPropertiesCoro", httpPolicy));
    LLCore::HttpRequest::ptr_t httpRequest(new LLCore::HttpRequest);
    LLCore::HttpHeaders::ptr_t httpHeaders;

    LLCore::HttpOptions::ptr_t httpOpts(new LLCore::HttpOptions);
    httpOpts->setFollowRedirects(true);

    std::string finalUrl = cap_url + "/" + avatar_id.asString();

    LLSD result = httpAdapter->getAndSuspend(httpRequest, finalUrl, httpOpts, httpHeaders);

    // Response is being processed, no longer pending is required
    inst.removePendingRequest(avatar_id, type);

    LLSD httpResults = result[LLCoreHttpUtil::HttpCoroutineAdapter::HTTP_RESULTS];
    LLCore::HttpStatus status = LLCoreHttpUtil::HttpCoroutineAdapter::getStatusFromLLSD(httpResults);

    if (!status
        || !result.has("id")
        || avatar_id != result["id"].asUUID())
    {
        LL_WARNS("AvatarProperties") << "Failed to get agent information for id " << avatar_id
            << (!status ? " (no HTTP status)" : !result.has("id") ? " (no result.id)" :
                std::string(" (result.id=") + result["id"].asUUID().asString() + ")")
            << LL_ENDL;
        return;
    }

    LLAvatarData avatar_data;

    std::string birth_date;

    avatar_data.agent_id = gAgentID;
    avatar_data.avatar_id = avatar_id;
    avatar_data.image_id = result["sl_image_id"].asUUID();
    avatar_data.fl_image_id = result["fl_image_id"].asUUID();
    avatar_data.partner_id = result["partner_id"].asUUID();
    avatar_data.about_text = result["sl_about_text"].asString();
    avatar_data.fl_about_text = result["fl_about_text"].asString();
    avatar_data.born_on = result["member_since"].asDate();
    // TODO: SL-20163 Remove the "has" check when SRV-684 is done
    // and the field "hide_age" is included to the http response
    inst.mIsHideAgeSupportedByServer = result.has("hide_age");
    avatar_data.hide_age = inst.isHideAgeSupportedByServer() && result["hide_age"].asBoolean();
    avatar_data.profile_url = getProfileURL(avatar_id.asString());
    avatar_data.customer_type = result["customer_type"].asString();
    avatar_data.notes = result["notes"].asString();

    avatar_data.flags = 0;
    if (result["online"].asBoolean())
    {
        avatar_data.flags |= AVATAR_ONLINE;
    }
    if (result["allow_publish"].asBoolean())
    {
        avatar_data.flags |= AVATAR_ALLOW_PUBLISH;
    }
    if (result["identified"].asBoolean())
    {
        avatar_data.flags |= AVATAR_IDENTIFIED;
    }
    if (result["transacted"].asBoolean())
    {
        avatar_data.flags |= AVATAR_TRANSACTED;
    }

    avatar_data.caption_index = 0;
    if (result.has("charter_member")) // won't be present if "caption" is set
    {
        avatar_data.caption_index = result["charter_member"].asInteger();
    }
    else if (result.has("caption"))
    {
        avatar_data.caption_text = result["caption"].asString();
    }

    // Groups
    LLSD groups_array = result["groups"];
    for (LLSD::array_const_iterator it = groups_array.beginArray(); it != groups_array.endArray(); ++it)
    {
        const LLSD& group_info = *it;
        LLAvatarData::LLGroupData group_data;
        group_data.group_powers = 0; // Not in use?
        group_data.group_title = group_info["name"].asString(); // Missing data, not in use?
        group_data.group_id = group_info["id"].asUUID();
        group_data.group_name = group_info["name"].asString();
        group_data.group_insignia_id = group_info["image_id"].asUUID();

        avatar_data.group_list.push_back(group_data);
    }

    // Picks
    LLSD picks_array = result["picks"];
    for (LLSD::array_const_iterator it = picks_array.beginArray(); it != picks_array.endArray(); ++it)
    {
        const LLSD& pick_data = *it;
        avatar_data.picks_list.emplace_back(pick_data["id"].asUUID(), pick_data["name"].asString());
    }

    LLAppViewer::instance()->postToMainCoro(
        [avatar_id, avatar_data, type]()
        {
            LLAvatarPropertiesProcessor::instance().notifyObservers(avatar_id, (void*) &avatar_data, type);
        });
}

void LLAvatarPropertiesProcessor::processAvatarLegacyPropertiesReply(LLMessageSystem* msg, void**)
{
    LLAvatarLegacyData avatar_data;
    std::string birth_date;

    msg->getUUIDFast(   _PREHASH_AgentData,         _PREHASH_AgentID,       avatar_data.agent_id);
    msg->getUUIDFast(   _PREHASH_AgentData,         _PREHASH_AvatarID,      avatar_data.avatar_id);
    msg->getUUIDFast(   _PREHASH_PropertiesData,    _PREHASH_ImageID,       avatar_data.image_id);
    msg->getUUIDFast(   _PREHASH_PropertiesData,    _PREHASH_FLImageID,     avatar_data.fl_image_id);
    msg->getUUIDFast(   _PREHASH_PropertiesData,    _PREHASH_PartnerID,     avatar_data.partner_id);
    msg->getStringFast( _PREHASH_PropertiesData,    _PREHASH_AboutText,     avatar_data.about_text);
    msg->getStringFast( _PREHASH_PropertiesData,    _PREHASH_FLAboutText,   avatar_data.fl_about_text);
    msg->getStringFast( _PREHASH_PropertiesData,    _PREHASH_BornOn,        birth_date);
    msg->getString(     _PREHASH_PropertiesData,    _PREHASH_ProfileURL,    avatar_data.profile_url);
    msg->getU32Fast(    _PREHASH_PropertiesData,    _PREHASH_Flags,         avatar_data.flags);

    LLDateUtil::dateFromPDTString(avatar_data.born_on, birth_date);
    avatar_data.caption_index = 0;

    S32 charter_member_size = 0;
    charter_member_size = msg->getSize(_PREHASH_PropertiesData, _PREHASH_CharterMember);
    if (1 == charter_member_size)
    {
        msg->getBinaryData(_PREHASH_PropertiesData, _PREHASH_CharterMember, &avatar_data.caption_index, 1);
    }
    else if (1 < charter_member_size)
    {
        msg->getString(_PREHASH_PropertiesData, _PREHASH_CharterMember, avatar_data.caption_text);
    }
    LLAvatarPropertiesProcessor* self = getInstance();
    // Request processed, no longer pending
    self->removePendingRequest(avatar_data.avatar_id, APT_PROPERTIES_LEGACY);
    self->notifyObservers(avatar_data.avatar_id, &avatar_data, APT_PROPERTIES_LEGACY);
}

void LLAvatarPropertiesProcessor::processAvatarInterestsReply(LLMessageSystem* msg, void**)
{
/*
    AvatarInterestsReply is automatically sent by the server in response to the
    AvatarPropertiesRequest (in addition to the AvatarPropertiesReply message).
    If the interests panel is no longer part of the design (?) we should just register the message
    to a handler function that does nothing.
    That will suppress the warnings and be compatible with old server versions.
    WARNING: LLTemplateMessageReader::decodeData: Message from 216.82.37.237:13000 with no handler function received: AvatarInterestsReply
*/
}

void LLAvatarPropertiesProcessor::processAvatarClassifiedsReply(LLMessageSystem* msg, void**)
{
    LLAvatarClassifieds classifieds;

    msg->getUUID(_PREHASH_AgentData, _PREHASH_AgentID, classifieds.agent_id);
    msg->getUUID(_PREHASH_AgentData, _PREHASH_TargetID, classifieds.target_id);

    S32 block_count = msg->getNumberOfBlocks(_PREHASH_Data);

    for(int n = 0; n < block_count; ++n)
    {
        LLAvatarClassifieds::classified_data data;

        msg->getUUID(_PREHASH_Data, _PREHASH_ClassifiedID, data.classified_id, n);
        msg->getString(_PREHASH_Data, _PREHASH_Name, data.name, n);

        classifieds.classifieds_list.emplace_back(data);
    }

    LLAvatarPropertiesProcessor* self = getInstance();
    // Request processed, no longer pending
    self->removePendingRequest(classifieds.target_id, APT_CLASSIFIEDS);
    self->notifyObservers(classifieds.target_id,&classifieds,APT_CLASSIFIEDS);
}

void LLAvatarPropertiesProcessor::processClassifiedInfoReply(LLMessageSystem* msg, void**)
{
    LLAvatarClassifiedInfo c_info;

    msg->getUUID(_PREHASH_AgentData, _PREHASH_AgentID, c_info.agent_id);

    msg->getUUID(_PREHASH_Data, _PREHASH_ClassifiedID, c_info.classified_id);
    msg->getUUID(_PREHASH_Data, _PREHASH_CreatorID, c_info.creator_id);
    msg->getU32(_PREHASH_Data, _PREHASH_CreationDate, c_info.creation_date);
    msg->getU32(_PREHASH_Data, _PREHASH_ExpirationDate, c_info.expiration_date);
    msg->getU32(_PREHASH_Data, _PREHASH_Category, c_info.category);
    msg->getString(_PREHASH_Data, _PREHASH_Name, c_info.name);
    msg->getString(_PREHASH_Data, _PREHASH_Desc, c_info.description);
    msg->getUUID(_PREHASH_Data, _PREHASH_ParcelID, c_info.parcel_id);
    msg->getU32(_PREHASH_Data, _PREHASH_ParentEstate, c_info.parent_estate);
    msg->getUUID(_PREHASH_Data, _PREHASH_SnapshotID, c_info.snapshot_id);
    msg->getString(_PREHASH_Data, _PREHASH_SimName, c_info.sim_name);
    msg->getVector3d(_PREHASH_Data, _PREHASH_PosGlobal, c_info.pos_global);
    msg->getString(_PREHASH_Data, _PREHASH_ParcelName, c_info.parcel_name);
    msg->getU8(_PREHASH_Data, _PREHASH_ClassifiedFlags, c_info.flags);
    msg->getS32(_PREHASH_Data, _PREHASH_PriceForListing, c_info.price_for_listing);

    LLAvatarPropertiesProcessor* self = getInstance();
    // Request processed, no longer pending
    self->removePendingRequest(c_info.creator_id, APT_CLASSIFIED_INFO);
    self->notifyObservers(c_info.creator_id, &c_info, APT_CLASSIFIED_INFO);
}


void LLAvatarPropertiesProcessor::processAvatarNotesReply(LLMessageSystem* msg, void**)
{
    // Deprecated, new "AgentProfile" allows larger notes
}

void LLAvatarPropertiesProcessor::processAvatarPicksReply(LLMessageSystem* msg, void**)
{
    LLUUID agent_id;
    LLUUID target_id;
    msg->getUUID(_PREHASH_AgentData, _PREHASH_AgentID, agent_id);
    msg->getUUID(_PREHASH_AgentData, _PREHASH_TargetID, target_id);

    LL_DEBUGS("AvatarProperties") << "Received AvatarPicksReply for " << target_id << LL_ENDL;
}

void LLAvatarPropertiesProcessor::processPickInfoReply(LLMessageSystem* msg, void**)
{
    LLPickData pick_data;

    // Extract the agent id and verify the message is for this
    // client.
    msg->getUUID(_PREHASH_AgentData, _PREHASH_AgentID, pick_data.agent_id );
    msg->getUUID(_PREHASH_Data, _PREHASH_PickID, pick_data.pick_id);
    msg->getUUID(_PREHASH_Data, _PREHASH_CreatorID, pick_data.creator_id);

    // ** top_pick should be deleted, not being used anymore - angela
    msg->getBOOL(_PREHASH_Data, _PREHASH_TopPick, pick_data.top_pick);
    msg->getUUID(_PREHASH_Data, _PREHASH_ParcelID, pick_data.parcel_id);
    msg->getString(_PREHASH_Data, _PREHASH_Name, pick_data.name);
    msg->getString(_PREHASH_Data, _PREHASH_Desc, pick_data.desc);
    msg->getUUID(_PREHASH_Data, _PREHASH_SnapshotID, pick_data.snapshot_id);

    msg->getString(_PREHASH_Data, _PREHASH_User, pick_data.user_name);
    msg->getString(_PREHASH_Data, _PREHASH_OriginalName, pick_data.original_name);
    msg->getString(_PREHASH_Data, _PREHASH_SimName, pick_data.sim_name);
    msg->getVector3d(_PREHASH_Data, _PREHASH_PosGlobal, pick_data.pos_global);

    msg->getS32(_PREHASH_Data, _PREHASH_SortOrder, pick_data.sort_order);
    msg->getBOOL(_PREHASH_Data, _PREHASH_Enabled, pick_data.enabled);

    LLAvatarPropertiesProcessor* self = getInstance();
    // don't need to remove pending request as we don't track pick info
    self->notifyObservers(pick_data.creator_id, &pick_data, APT_PICK_INFO);
}

void LLAvatarPropertiesProcessor::processAvatarGroupsReply(LLMessageSystem* msg, void**)
{
    /*
    AvatarGroupsReply is automatically sent by the server in response to the
    AvatarPropertiesRequest in addition to the AvatarPropertiesReply message.
    */
    LLUUID agent_id;
    LLUUID avatar_id;
    msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AgentID, agent_id);
    msg->getUUIDFast(_PREHASH_AgentData, _PREHASH_AvatarID, avatar_id);

    LL_DEBUGS("AvatarProperties") << "Received AvatarGroupsReply for " << avatar_id << LL_ENDL;
}

void LLAvatarPropertiesProcessor::notifyObservers(const LLUUID& id, void* data, EAvatarProcessorType type)
{
    // Copy the map (because observers may delete themselves when updated?)
    LLAvatarPropertiesProcessor::observer_multimap_t observers = mObservers;

    for (const auto& [agent_id, observer] : observers)
    {
        // only notify observers for the same agent, or if the observer
        // didn't know the agent ID and passed a NULL id.
        if (agent_id == id || agent_id.isNull())
        {
            observer->processProperties(data, type);
        }
    }
}

void LLAvatarPropertiesProcessor::sendFriendRights(const LLUUID& avatar_id, S32 rights)
{
    if(!avatar_id.isNull())
    {
        LLMessageSystem* msg = gMessageSystem;

        // setup message header
        msg->newMessageFast(_PREHASH_GrantUserRights);
        msg->nextBlockFast(_PREHASH_AgentData);
        msg->addUUID(_PREHASH_AgentID, gAgentID);
        msg->addUUID(_PREHASH_SessionID, gAgentSessionID);

        msg->nextBlockFast(_PREHASH_Rights);
        msg->addUUID(_PREHASH_AgentRelated, avatar_id);
        msg->addS32(_PREHASH_RelatedRights, rights);

        gAgent.sendReliableMessage();
    }
}

void LLAvatarPropertiesProcessor::sendPickDelete( const LLUUID& pick_id )
{
    LLMessageSystem* msg = gMessageSystem;
    msg->newMessage(_PREHASH_PickDelete);
    msg->nextBlock(_PREHASH_AgentData);
    msg->addUUID(_PREHASH_AgentID, gAgentID);
    msg->addUUID(_PREHASH_SessionID, gAgentSessionID);
    msg->nextBlock(_PREHASH_Data);
    msg->addUUID(_PREHASH_PickID, pick_id);
    gAgent.sendReliableMessage();

    LLAgentPicksInfo::getInstance()->requestNumberOfPicks();
    LLAgentPicksInfo::getInstance()->decrementNumberOfPicks();
}

void LLAvatarPropertiesProcessor::sendClassifiedDelete(const LLUUID& classified_id)
{
    LLMessageSystem* msg = gMessageSystem;

    msg->newMessage(_PREHASH_ClassifiedDelete);

    msg->nextBlock(_PREHASH_AgentData);
    msg->addUUID(_PREHASH_AgentID, gAgentID);
    msg->addUUID(_PREHASH_SessionID, gAgentSessionID);

    msg->nextBlock(_PREHASH_Data);
    msg->addUUID(_PREHASH_ClassifiedID, classified_id);

    gAgent.sendReliableMessage();
}

void LLAvatarPropertiesProcessor::sendPickInfoUpdate(const LLPickData* new_pick)
{
    if (!new_pick)
        return;

    LLMessageSystem* msg = gMessageSystem;

    msg->newMessage(_PREHASH_PickInfoUpdate);
    msg->nextBlock(_PREHASH_AgentData);
    msg->addUUID(_PREHASH_AgentID, gAgentID);
    msg->addUUID(_PREHASH_SessionID, gAgentSessionID);

    msg->nextBlock(_PREHASH_Data);
    msg->addUUID(_PREHASH_PickID, new_pick->pick_id);
    msg->addUUID(_PREHASH_CreatorID, new_pick->creator_id);

    //legacy var need to be deleted
    msg->addBOOL(_PREHASH_TopPick, false);

    // fills in on simulator if null
    msg->addUUID(_PREHASH_ParcelID, new_pick->parcel_id);
    msg->addString(_PREHASH_Name, new_pick->name);
    msg->addString(_PREHASH_Desc, new_pick->desc);
    msg->addUUID(_PREHASH_SnapshotID, new_pick->snapshot_id);
    msg->addVector3d(_PREHASH_PosGlobal, new_pick->pos_global);

    // Only top picks have a sort order
    msg->addS32(_PREHASH_SortOrder, 0);

    msg->addBOOL(_PREHASH_Enabled, new_pick->enabled);
    gAgent.sendReliableMessage();

    LLAgentPicksInfo::getInstance()->requestNumberOfPicks();
}

void LLAvatarPropertiesProcessor::sendClassifiedInfoUpdate(const LLAvatarClassifiedInfo* c_data)
{
    if(!c_data)
    {
        return;
    }

    LLMessageSystem* msg = gMessageSystem;

    msg->newMessage(_PREHASH_ClassifiedInfoUpdate);

    msg->nextBlock(_PREHASH_AgentData);
    msg->addUUID(_PREHASH_AgentID, gAgentID);
    msg->addUUID(_PREHASH_SessionID, gAgentSessionID);

    msg->nextBlock(_PREHASH_Data);
    msg->addUUID(_PREHASH_ClassifiedID, c_data->classified_id);
    msg->addU32(_PREHASH_Category, c_data->category);
    msg->addString(_PREHASH_Name, c_data->name);
    msg->addString(_PREHASH_Desc, c_data->description);
    msg->addUUID(_PREHASH_ParcelID, c_data->parcel_id);
    msg->addU32(_PREHASH_ParentEstate, 0);
    msg->addUUID(_PREHASH_SnapshotID, c_data->snapshot_id);
    msg->addVector3d(_PREHASH_PosGlobal, c_data->pos_global);
    msg->addU8(_PREHASH_ClassifiedFlags, c_data->flags);
    msg->addS32(_PREHASH_PriceForListing, c_data->price_for_listing);

    gAgent.sendReliableMessage();
}

void LLAvatarPropertiesProcessor::sendPickInfoRequest(const LLUUID& creator_id, const LLUUID& pick_id)
{
    LL_DEBUGS("PickInfo") << " Requiesting pick info for " << pick_id << LL_ENDL;
    // Must ask for a pick based on the creator id because
    // the pick database is distributed to the inventory cluster. JC
    std::vector<std::string> request_params{ creator_id.asString(), pick_id.asString() };
    send_generic_message("pickinforequest", request_params);
}

void LLAvatarPropertiesProcessor::sendClassifiedInfoRequest(const LLUUID& classified_id)
{
    LLMessageSystem* msg = gMessageSystem;

    msg->newMessage(_PREHASH_ClassifiedInfoRequest);
    msg->nextBlock(_PREHASH_AgentData);

    msg->addUUID(_PREHASH_AgentID, gAgentID);
    msg->addUUID(_PREHASH_SessionID, gAgentSessionID);

    msg->nextBlock(_PREHASH_Data);
    msg->addUUID(_PREHASH_ClassifiedID, classified_id);

    gAgent.sendReliableMessage();
}

bool LLAvatarPropertiesProcessor::isPendingRequest(const LLUUID& avatar_id, EAvatarProcessorType type)
{
    timestamp_map_t::key_type key = std::make_pair(avatar_id, type);
    timestamp_map_t::iterator it = mRequestTimestamps.find(key);

    // Is this a new request?
    if (it == mRequestTimestamps.end()) return false;

    // We found a request, check if it has timed out
    U32 now = (U32)time(nullptr);
    const U32 REQUEST_EXPIRE_SECS = 5;
    U32 expires = it->second + REQUEST_EXPIRE_SECS;

    // Request is still pending if it hasn't expired yet
    // *NOTE: Expired requests will accumulate in this map, but they are rare,
    // the data is small, and they will be updated if the same data is
    // re-requested
    return (now < expires);
}

void LLAvatarPropertiesProcessor::addPendingRequest(const LLUUID& avatar_id, EAvatarProcessorType type)
{
    timestamp_map_t::key_type key = std::make_pair(avatar_id, type);
    U32 now = (U32)time(nullptr);
    // Add or update existing (expired) request
    mRequestTimestamps[ key ] = now;
}

void LLAvatarPropertiesProcessor::removePendingRequest(const LLUUID& avatar_id, EAvatarProcessorType type)
{
    timestamp_map_t::key_type key = std::make_pair(avatar_id, type);
    mRequestTimestamps.erase(key);
}
