/**
 * @file llpanellandmarkinfo.cpp
 * @brief Displays landmark info in Side Tray.
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * 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 "llpanellandmarkinfo.h"

#include "llcombobox.h"
#include "lliconctrl.h"
#include "llinventoryfunctions.h"
#include "lllineeditor.h"
#include "lltextbox.h"
#include "lltexteditor.h"
#include "lltrans.h"

#include "llagent.h"
#include "llagentui.h"
#include "lllandmarkactions.h"
#include "llparcel.h"
#include "llslurl.h"
#include "llviewerinventory.h"
#include "llviewerparcelmgr.h"
#include "llviewerregion.h"

//----------------------------------------------------------------------------
// Aux types and methods
//----------------------------------------------------------------------------

typedef std::pair<LLUUID, std::string> folder_pair_t;

static bool cmp_folders(const folder_pair_t& left, const folder_pair_t& right);

static LLPanelInjector<LLPanelLandmarkInfo> t_landmark_info("panel_landmark_info");

// Statics for textures filenames
static std::string icon_pg;
static std::string icon_m;
static std::string icon_r;

LLPanelLandmarkInfo::LLPanelLandmarkInfo()
:   LLPanelPlaceInfo()
{}

// virtual
LLPanelLandmarkInfo::~LLPanelLandmarkInfo()
{}

// virtual
bool LLPanelLandmarkInfo::postBuild()
{
    LLPanelPlaceInfo::postBuild();

    mOwner = getChild<LLTextBox>("owner");
    mCreator = getChild<LLTextBox>("creator");
    mCreated = getChild<LLTextBox>("created");

    mLandmarkTitle = getChild<LLLineEditor>("title_value");
    mLandmarkTitleEditor = getChild<LLLineEditor>("title_editor");
    mNotesEditor = getChild<LLTextEditor>("notes_editor");
    mFolderCombo = getChild<LLComboBox>("folder_combo");

    icon_pg = getString("icon_PG");
    icon_m = getString("icon_M");
    icon_r = getString("icon_R");

    return true;
}

// virtual
void LLPanelLandmarkInfo::resetLocation()
{
    LLPanelPlaceInfo::resetLocation();

    std::string loading = LLTrans::getString("LoadingData");
    mCreator->setText(loading);
    mOwner->setText(loading);
    mCreated->setText(loading);
    mLandmarkTitle->setText(LLStringUtil::null);
    mLandmarkTitleEditor->setText(LLStringUtil::null);
    mNotesEditor->setText(LLStringUtil::null);
}

// virtual
void LLPanelLandmarkInfo::setInfoType(EInfoType type)
{
    LLUUID dest_folder;
    setInfoType(type, dest_folder);
}

// Sets CREATE_LANDMARK infotype and creates landmark at desired folder
void LLPanelLandmarkInfo::setInfoAndCreateLandmark(const LLUUID& folder_id)
{
    setInfoType(CREATE_LANDMARK, folder_id);
}

void LLPanelLandmarkInfo::setInfoType(EInfoType type, const LLUUID &folder_id)
{
    LLPanel* landmark_info_panel = getChild<LLPanel>("landmark_info_panel");

    bool is_info_type_create_landmark = type == CREATE_LANDMARK;

    landmark_info_panel->setVisible(type == LANDMARK);

    getChild<LLTextBox>("folder_label")->setVisible(is_info_type_create_landmark);
    getChild<LLButton>("edit_btn")->setVisible(!is_info_type_create_landmark);
    mFolderCombo->setVisible(is_info_type_create_landmark);

    switch(type)
    {
        case CREATE_LANDMARK:
        {
            mCurrentTitle = getString("title_create_landmark");

            mLandmarkTitle->setVisible(false);
            mLandmarkTitleEditor->setVisible(true);
            mNotesEditor->setEnabled(true);

            LLViewerParcelMgr* parcel_mgr = LLViewerParcelMgr::getInstance();
            LLParcel* parcel = parcel_mgr->getAgentParcel();
            std::string name = parcel->getName();
            LLVector3 agent_pos = gAgent.getPositionAgent();

            if (name.empty())
            {
                S32 region_x = ll_round(agent_pos.mV[VX]);
                S32 region_y = ll_round(agent_pos.mV[VY]);
                S32 region_z = ll_round(agent_pos.mV[VZ]);

                std::string region_name;
                LLViewerRegion* region = parcel_mgr->getSelectionRegion();
                if (region)
                {
                    region_name = region->getName();
                }
                else
                {
                    std::string desc;
                    LLAgentUI::buildLocationString(desc, LLAgentUI::LOCATION_FORMAT_NORMAL, agent_pos);
                    region_name = desc;
                }

                mLandmarkTitleEditor->setText(llformat("%s (%d, %d, %d)",
                                      region_name.c_str(), region_x, region_y, region_z));
            }
            else
            {
                mLandmarkTitleEditor->setText(name);
            }

            LLUUID owner_id = parcel->getOwnerID();
            if (owner_id.notNull())
            {
                if (parcel->getIsGroupOwned())
                {
                    std::string owner_name = LLSLURL("group", parcel->getGroupID(), "inspect").getSLURLString();
                    mParcelOwner->setText(owner_name);
                }
                else
                {
                    std::string owner_name = LLSLURL("agent", owner_id, "inspect").getSLURLString();
                    mParcelOwner->setText(owner_name);
                }
            }
            else
            {
                mParcelOwner->setText(getString("public"));
            }

            // Moved landmark creation here from LLPanelLandmarkInfo::processParcelInfo()
            // because we use only agent's current coordinates instead of waiting for
            // remote parcel request to complete.
            if (!LLLandmarkActions::landmarkAlreadyExists())
            {
                createLandmark(folder_id);
            }
        }
        break;

        case LANDMARK:
        default:
            mCurrentTitle = getString("title_landmark");

            mLandmarkTitle->setVisible(true);
            mLandmarkTitleEditor->setVisible(false);
            mNotesEditor->setEnabled(false);
        break;
    }

    populateFoldersList();

    // Prevent the floater from losing focus (if the sidepanel is undocked).
    setFocus(true);

    LLPanelPlaceInfo::setInfoType(type);
}

// virtual
void LLPanelLandmarkInfo::processParcelInfo(const LLParcelData& parcel_data)
{
    LLPanelPlaceInfo::processParcelInfo(parcel_data);

    // HACK: Flag 0x2 == adult region,
    // Flag 0x1 == mature region, otherwise assume PG
    if (parcel_data.flags & 0x2)
    {
        mMaturityRatingIcon->setValue(icon_r);
        mMaturityRatingText->setText(LLViewerRegion::accessToString(SIM_ACCESS_ADULT));
    }
    else if (parcel_data.flags & 0x1)
    {
        mMaturityRatingIcon->setValue(icon_m);
        mMaturityRatingText->setText(LLViewerRegion::accessToString(SIM_ACCESS_MATURE));
    }
    else
    {
        mMaturityRatingIcon->setValue(icon_pg);
        mMaturityRatingText->setText(LLViewerRegion::accessToString(SIM_ACCESS_PG));
    }

    if (parcel_data.owner_id.notNull())
    {
        if (parcel_data.flags & 0x4) // depends onto DRTSIM-453
        {
            std::string owner_name = LLSLURL("group", parcel_data.owner_id, "inspect").getSLURLString();
            mParcelOwner->setText(owner_name);
        }
        else
        {
            std::string owner_name = LLSLURL("agent", parcel_data.owner_id, "inspect").getSLURLString();
            mParcelOwner->setText(owner_name);
        }
    }
    else
    {
        mParcelOwner->setText(getString("public"));
    }

    LLSD info;
    info["update_verbs"] = true;
    info["global_x"] = parcel_data.global_x;
    info["global_y"] = parcel_data.global_y;
    info["global_z"] = parcel_data.global_z;
    notifyParent(info);
}

void LLPanelLandmarkInfo::displayItemInfo(const LLInventoryItem* pItem)
{
    if (!pItem)
        return;

    if(!gCacheName)
        return;

    const LLPermissions& perm = pItem->getPermissions();

    //////////////////
    // CREATOR NAME //
    //////////////////
    if (pItem->getCreatorUUID().notNull())
    {
        // IDEVO
        LLUUID creator_id = pItem->getCreatorUUID();
        std::string name =
            LLSLURL("agent", creator_id, "inspect").getSLURLString();
        mCreator->setText(name);
    }
    else
    {
        mCreator->setText(getString("unknown"));
    }

    ////////////////
    // OWNER NAME //
    ////////////////
    if(perm.isOwned())
    {
        std::string name;
        if (perm.isGroupOwned())
        {
            LLUUID group_id = perm.getGroup();
            name = LLSLURL("group", group_id, "inspect").getSLURLString();
        }
        else
        {
            LLUUID owner_id = perm.getOwner();
            name = LLSLURL("agent", owner_id, "inspect").getSLURLString();
        }
        mOwner->setText(name);
    }
    else
    {
        std::string public_str = getString("public");
        mOwner->setText(public_str);
    }

    //////////////////
    // ACQUIRE DATE //
    //////////////////
    time_t time_utc = pItem->getCreationDate();
    if (0 == time_utc)
    {
        mCreated->setText(getString("unknown"));
    }
    else
    {
        std::string timeStr = getString("acquired_date");
        LLSD substitution;
        substitution["datetime"] = (S32) time_utc;
        LLStringUtil::format (timeStr, substitution);
        mCreated->setText(timeStr);
    }

    mLandmarkTitle->setText(pItem->getName());
    mLandmarkTitleEditor->setText(pItem->getName());
    mNotesEditor->setText(pItem->getDescription());
}

void LLPanelLandmarkInfo::toggleLandmarkEditMode(bool enabled)
{
    // If switching to edit mode while creating landmark
    // the "Create Landmark" title remains.
    if (enabled && mInfoType != CREATE_LANDMARK)
    {
        mTitle->setText(getString("title_edit_landmark"));
    }
    else
    {
        mTitle->setText(mCurrentTitle);

        mLandmarkTitle->setText(mLandmarkTitleEditor->getText());
    }

    if (mNotesEditor->getReadOnly() == enabled)
    {
        mLandmarkTitle->setVisible(!enabled);
        mLandmarkTitleEditor->setVisible(enabled);
        mNotesEditor->setReadOnly(!enabled);
        mFolderCombo->setVisible(enabled);
        getChild<LLTextBox>("folder_label")->setVisible(enabled);
        getChild<LLButton>("edit_btn")->setVisible(!enabled);

        // HACK: To change the text color in a text editor
        // when it was enabled/disabled we set the text once again.
        mNotesEditor->setText(mNotesEditor->getText());
    }

    // Prevent the floater from losing focus (if the sidepanel is undocked).
    setFocus(true);
}

void LLPanelLandmarkInfo::setCanEdit(bool enabled)
{
    getChild<LLButton>("edit_btn")->setEnabled(enabled);
}

const std::string& LLPanelLandmarkInfo::getLandmarkTitle() const
{
    return mLandmarkTitleEditor->getText();
}

const std::string LLPanelLandmarkInfo::getLandmarkNotes() const
{
    return mNotesEditor->getText();
}

const LLUUID LLPanelLandmarkInfo::getLandmarkFolder() const
{
    return mFolderCombo->getValue().asUUID();
}

bool LLPanelLandmarkInfo::setLandmarkFolder(const LLUUID& id)
{
    return mFolderCombo->setCurrentByID(id);
}

void LLPanelLandmarkInfo::createLandmark(const LLUUID& folder_id)
{
    std::string name = mLandmarkTitleEditor->getText();
    std::string desc = mNotesEditor->getText();

    LLStringUtil::trim(name);
    LLStringUtil::trim(desc);

    // If typed name is empty use the parcel name instead.
    if (name.empty())
    {
        name = mParcelName->getText();

        // If no parcel exists use the region name instead.
        if (name.empty())
        {
            name = mRegionTitle;
        }
    }

    LLStringUtil::replaceChar(desc, '\n', ' ');

    // If no folder chosen use the "Landmarks" folder.
    LLLandmarkActions::createLandmarkHere(name, desc,
        folder_id.notNull() ? folder_id : gInventory.findCategoryUUIDForType(LLFolderType::FT_LANDMARK));
}

// static
std::string LLPanelLandmarkInfo::getFullFolderName(const LLViewerInventoryCategory* cat)
{
    std::string name;
    LLUUID parent_id;

    llassert(cat);
    if (cat)
    {
        name = cat->getName();
        parent_id = cat->getParentUUID();
        bool is_under_root_category = parent_id == gInventory.getRootFolderID();

        // we don't want "My Inventory" to appear in the name
        while ((parent_id = cat->getParentUUID()).notNull())
        {
            cat = gInventory.getCategory(parent_id);
            llassert(cat);
            if (cat)
            {
                if (is_under_root_category || cat->getParentUUID() == gInventory.getRootFolderID())
                {
                    std::string localized_name;

                    // Looking for translation only for protected type categories
                    // to avoid warnings about non existent string in strings.xml.
                    bool is_protected_type = LLFolderType::lookupIsProtectedType(cat->getPreferredType());

                    if (is_under_root_category)
                    {
                        // translate category name, if it's right below the root
                        bool is_found = is_protected_type && LLTrans::findString(localized_name, "InvFolder " + name);
                        name = is_found ? localized_name : name;
                    }
                    else
                    {
                        bool is_found = is_protected_type && LLTrans::findString(localized_name, "InvFolder " + cat->getName());

                        // add translated category name to folder's full name
                        name = (is_found ? localized_name : cat->getName()) + "/" + name;
                    }

                    break;
                }
                else
                {
                    name = cat->getName() + "/" + name;
                }
            }
        }
    }

    return name;
}

void LLPanelLandmarkInfo::populateFoldersList()
{
    // Collect all folders that can contain landmarks.
    LLInventoryModel::cat_array_t cats;
    collectLandmarkFolders(cats);

    mFolderCombo->removeall();

    // Put the "Landmarks" folder first in list.
    LLUUID landmarks_id = gInventory.findCategoryUUIDForType(LLFolderType::FT_LANDMARK);
    const LLViewerInventoryCategory* lmcat = gInventory.getCategory(landmarks_id);
    if (!lmcat)
    {
        LL_WARNS() << "Cannot find the landmarks folder" << LL_ENDL;
    }
    else
    {
        std::string cat_full_name = getFullFolderName(lmcat);
        mFolderCombo->add(cat_full_name, lmcat->getUUID());
    }

    typedef std::vector<folder_pair_t> folder_vec_t;
    folder_vec_t folders;
    // Sort the folders by their full name.
    for (S32 i = 0; i < cats.size(); i++)
    {
        const LLViewerInventoryCategory* cat = cats.at(i);
        std::string cat_full_name = getFullFolderName(cat);
        folders.push_back(folder_pair_t(cat->getUUID(), cat_full_name));
    }
    sort(folders.begin(), folders.end(), cmp_folders);

    // Finally, populate the combobox.
    for (folder_vec_t::const_iterator it = folders.begin(); it != folders.end(); it++)
        mFolderCombo->add(it->second, LLSD(it->first));
}

static bool cmp_folders(const folder_pair_t& left, const folder_pair_t& right)
{
    return left.second < right.second;
}

void LLPanelLandmarkInfo::collectLandmarkFolders(LLInventoryModel::cat_array_t& cats)
{
    LLUUID landmarks_id = gInventory.findCategoryUUIDForType(LLFolderType::FT_LANDMARK);

    // Add descendent folders of the "Landmarks" category.
    LLInventoryModel::item_array_t items; // unused
    LLIsType is_category(LLAssetType::AT_CATEGORY);
    gInventory.collectDescendentsIf(
        landmarks_id,
        cats,
        items,
        LLInventoryModel::EXCLUDE_TRASH,
        is_category);
}

/* virtual */ void LLUpdateLandmarkParent::fire(const LLUUID& inv_item_id)
{
    LLInventoryModel::update_list_t update;
    LLInventoryModel::LLCategoryUpdate old_folder(mItem->getParentUUID(), -1);
    update.push_back(old_folder);
    LLInventoryModel::LLCategoryUpdate new_folder(mNewParentId, 1);
    update.push_back(new_folder);
    gInventory.accountForUpdate(update);

    mItem->setParent(mNewParentId);
    mItem->updateParentOnServer(false);

    gInventory.updateItem(mItem);
    gInventory.notifyObservers();
}