/**
 * @file LLSidepanelInventory.cpp
 * @brief Side Bar "Inventory" panel
 *
 * $LicenseInfo:firstyear=2009&license=viewergpl$
 *
 * Copyright (c) 2004-2009, Linden Research, Inc.
 *
 * Second Life Viewer Source Code
 * The source code in this file ("Source Code") is provided by Linden Lab
 * to you under the terms of the GNU General Public License, version 2.0
 * ("GPL"), unless you have obtained a separate licensing agreement
 * ("Other License"), formally executed by you and Linden Lab.  Terms of
 * the GPL can be found in doc/GPL-license.txt in this distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/gplv2
 *
 * There are special exceptions to the terms and conditions of the GPL as
 * it is applied to this Source Code. View the full text of the exception
 * in the file doc/FLOSS-exception.txt in this software distribution, or
 * online at http://secondlifegrid.net/programs/open_source/licensing/flossexception
 *
 * By copying, modifying or distributing this software, you acknowledge
 * that you have read and understood your obligations described above,
 * and agree to abide by those obligations.
 *
 * ALL LINDEN LAB SOURCE CODE IS PROVIDED "AS IS." LINDEN LAB MAKES NO
 * WARRANTIES, EXPRESS, IMPLIED OR OTHERWISE, REGARDING ITS ACCURACY,
 * COMPLETENESS OR PERFORMANCE.
 * $/LicenseInfo$
 */

#include "llviewerprecompiledheaders.h"
#include "llsidepanelinventory.h"

#include "llagent.h"
#include "llappearancemgr.h"
#include "llavataractions.h"
#include "llbutton.h"
#include "llfirstuse.h"
#include "llinventorybridge.h"
#include "llinventoryfunctions.h"
#include "llinventorypanel.h"
#include "lloutfitobserver.h"
#include "llpanelmaininventory.h"
#include "llsidepaneliteminfo.h"
#include "llsidepaneltaskinfo.h"
#include "lltabcontainer.h"
#include "llselectmgr.h"
#include "llweb.h"

static LLRegisterPanelClassWrapper<LLSidepanelInventory> t_inventory("sidepanel_inventory");

LLSidepanelInventory::LLSidepanelInventory()
	:	LLPanel(),
		mItemPanel(NULL),
		mPanelMainInventory(NULL)
{

	//LLUICtrlFactory::getInstance()->buildPanel(this, "panel_inventory.xml"); // Called from LLRegisterPanelClass::defaultPanelClassBuilder()
}

LLSidepanelInventory::~LLSidepanelInventory()
{
}

BOOL LLSidepanelInventory::postBuild()
{
	// UI elements from inventory panel
	{
		mInventoryPanel = getChild<LLPanel>("sidepanel__inventory_panel");

		mInfoBtn = mInventoryPanel->getChild<LLButton>("info_btn");
		mInfoBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onInfoButtonClicked, this));
		
		mShareBtn = mInventoryPanel->getChild<LLButton>("share_btn");
		mShareBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onShareButtonClicked, this));
		
		mShopBtn = mInventoryPanel->getChild<LLButton>("shop_btn");
		mShopBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onShopButtonClicked, this));

		mWearBtn = mInventoryPanel->getChild<LLButton>("wear_btn");
		mWearBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onWearButtonClicked, this));
		
		mPlayBtn = mInventoryPanel->getChild<LLButton>("play_btn");
		mPlayBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onPlayButtonClicked, this));
		
		mTeleportBtn = mInventoryPanel->getChild<LLButton>("teleport_btn");
		mTeleportBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onTeleportButtonClicked, this));
		
		mOverflowBtn = mInventoryPanel->getChild<LLButton>("overflow_btn");
		mOverflowBtn->setClickedCallback(boost::bind(&LLSidepanelInventory::onOverflowButtonClicked, this));
		
		mPanelMainInventory = mInventoryPanel->getChild<LLPanelMainInventory>("panel_main_inventory");
		mPanelMainInventory->setSelectCallback(boost::bind(&LLSidepanelInventory::onSelectionChange, this, _1, _2));
		LLTabContainer* tabs = mPanelMainInventory->getChild<LLTabContainer>("inventory filter tabs");
		tabs->setCommitCallback(boost::bind(&LLSidepanelInventory::updateVerbs, this));

		/* 
		   EXT-4846 : "Can we suppress the "Landmarks" and "My Favorites" folder since they have their own Task Panel?"
		   Deferring this until 2.1.
		LLInventoryPanel *my_inventory_panel = mPanelMainInventory->getChild<LLInventoryPanel>("All Items");
		my_inventory_panel->addHideFolderType(LLFolderType::FT_LANDMARK);
		my_inventory_panel->addHideFolderType(LLFolderType::FT_FAVORITE);
		*/

		LLOutfitObserver::instance().addCOFChangedCallback(boost::bind(&LLSidepanelInventory::updateVerbs, this));
	}

	// UI elements from item panel
	{
		mItemPanel = getChild<LLSidepanelItemInfo>("sidepanel__item_panel");
		
		LLButton* back_btn = mItemPanel->getChild<LLButton>("back_btn");
		back_btn->setClickedCallback(boost::bind(&LLSidepanelInventory::onBackButtonClicked, this));
	}

	// UI elements from task panel
	{
		mTaskPanel = getChild<LLSidepanelTaskInfo>("sidepanel__task_panel");
		if (mTaskPanel)
		{
			LLButton* back_btn = mTaskPanel->getChild<LLButton>("back_btn");
			back_btn->setClickedCallback(boost::bind(&LLSidepanelInventory::onBackButtonClicked, this));
		}
	}
	
	return TRUE;
}

void LLSidepanelInventory::onOpen(const LLSD& key)
{
	LLFirstUse::inventoryOffer(false);

	if(key.size() == 0)
		return;

	mItemPanel->reset();

	if (key.has("id"))
	{
		mItemPanel->setItemID(key["id"].asUUID());
		if (key.has("object"))
		{
			mItemPanel->setObjectID(key["object"].asUUID());
		}
		showItemInfoPanel();
	}
	if (key.has("task"))
	{
		if (mTaskPanel)
			mTaskPanel->setObjectSelection(LLSelectMgr::getInstance()->getSelection());
		showTaskInfoPanel();
	}
}

void LLSidepanelInventory::onInfoButtonClicked()
{
	LLInventoryItem *item = getSelectedItem();
	if (item)
	{
		mItemPanel->reset();
		mItemPanel->setItemID(item->getUUID());
		showItemInfoPanel();
	}
}

void LLSidepanelInventory::onShareButtonClicked()
{
	LLAvatarActions::shareWithAvatars();
}

void LLSidepanelInventory::onShopButtonClicked()
{
	LLWeb::loadURLExternal(gSavedSettings.getString("MarketplaceURL"));
}

void LLSidepanelInventory::performActionOnSelection(const std::string &action)
{
	LLPanelMainInventory *panel_main_inventory = mInventoryPanel->getChild<LLPanelMainInventory>("panel_main_inventory");
	LLFolderViewItem* current_item = panel_main_inventory->getActivePanel()->getRootFolder()->getCurSelectedItem();
	if (!current_item)
	{
		return;
	}
	current_item->getListener()->performAction(panel_main_inventory->getActivePanel()->getModel(), action);
}

void LLSidepanelInventory::onWearButtonClicked()
{
	performActionOnSelection("wear");
	performActionOnSelection("attach");
}

void LLSidepanelInventory::onPlayButtonClicked()
{
	const LLInventoryItem *item = getSelectedItem();
	if (!item)
	{
		return;
	}

	switch(item->getInventoryType())
	{
	case LLInventoryType::IT_GESTURE:
		performActionOnSelection("play");
		break;
	default:
		performActionOnSelection("open");
		break;
	}
}

void LLSidepanelInventory::onTeleportButtonClicked()
{
	performActionOnSelection("teleport");
}

void LLSidepanelInventory::onOverflowButtonClicked()
{
}

void LLSidepanelInventory::onBackButtonClicked()
{
	showInventoryPanel();
}

void LLSidepanelInventory::onSelectionChange(const std::deque<LLFolderViewItem*> &items, BOOL user_action)
{
	updateVerbs();
}

void LLSidepanelInventory::showItemInfoPanel()
{
	mItemPanel->setVisible(TRUE);
	if (mTaskPanel)
		mTaskPanel->setVisible(FALSE);
	mInventoryPanel->setVisible(FALSE);

	mItemPanel->dirty();
	mItemPanel->setIsEditing(FALSE);
}

void LLSidepanelInventory::showTaskInfoPanel()
{
	mItemPanel->setVisible(FALSE);
	mInventoryPanel->setVisible(FALSE);

	if (mTaskPanel)
	{
		mTaskPanel->setVisible(TRUE);
		mTaskPanel->dirty();
		mTaskPanel->setIsEditing(FALSE);
	}
}

void LLSidepanelInventory::showInventoryPanel()
{
	mItemPanel->setVisible(FALSE);
	if (mTaskPanel)
		mTaskPanel->setVisible(FALSE);
	mInventoryPanel->setVisible(TRUE);
	updateVerbs();
}

void LLSidepanelInventory::updateVerbs()
{
	mInfoBtn->setEnabled(FALSE);
	mShareBtn->setEnabled(FALSE);

	mWearBtn->setVisible(FALSE);
	mWearBtn->setEnabled(FALSE);
	mPlayBtn->setVisible(FALSE);
	mPlayBtn->setEnabled(FALSE);
 	mTeleportBtn->setVisible(FALSE);
 	mTeleportBtn->setEnabled(FALSE);
 	mShopBtn->setVisible(TRUE);

	mShareBtn->setEnabled(canShare());

	const LLInventoryItem *item = getSelectedItem();
	if (!item)
		return;

	bool is_single_selection = getSelectedCount() == 1;

	mInfoBtn->setEnabled(is_single_selection);

	switch(item->getInventoryType())
	{
		case LLInventoryType::IT_WEARABLE:
		case LLInventoryType::IT_OBJECT:
		case LLInventoryType::IT_ATTACHMENT:
			mWearBtn->setVisible(TRUE);
			mWearBtn->setEnabled(get_can_item_be_worn(item->getLinkedUUID()));
		 	mShopBtn->setVisible(FALSE);
			break;
		case LLInventoryType::IT_SOUND:
		case LLInventoryType::IT_GESTURE:
		case LLInventoryType::IT_ANIMATION:
			mPlayBtn->setVisible(TRUE);
			mPlayBtn->setEnabled(TRUE);
		 	mShopBtn->setVisible(FALSE);
			break;
		case LLInventoryType::IT_LANDMARK:
			mTeleportBtn->setVisible(TRUE);
			mTeleportBtn->setEnabled(TRUE);
		 	mShopBtn->setVisible(FALSE);
			break;
		default:
			break;
	}
}

bool LLSidepanelInventory::canShare()
{
	LLPanelMainInventory* panel_main_inventory =
		mInventoryPanel->getChild<LLPanelMainInventory>("panel_main_inventory");

	LLFolderView* root_folder =
		panel_main_inventory->getActivePanel()->getRootFolder();

	LLFolderViewItem* current_item = root_folder->hasVisibleChildren()
		? root_folder->getCurSelectedItem()
		: NULL;

	LLInvFVBridge* bridge = current_item
		? dynamic_cast <LLInvFVBridge*> (current_item->getListener())
		: NULL;

	return bridge ? bridge->canShare() : false;
}

LLInventoryItem *LLSidepanelInventory::getSelectedItem()
{
	LLPanelMainInventory *panel_main_inventory = mInventoryPanel->getChild<LLPanelMainInventory>("panel_main_inventory");
	LLFolderViewItem* current_item = panel_main_inventory->getActivePanel()->getRootFolder()->getCurSelectedItem();
	if (!current_item)
	{
		return NULL;
	}
	const LLUUID &item_id = current_item->getListener()->getUUID();
	LLInventoryItem *item = gInventory.getItem(item_id);
	return item;
}

U32 LLSidepanelInventory::getSelectedCount()
{
	LLPanelMainInventory *panel_main_inventory = mInventoryPanel->getChild<LLPanelMainInventory>("panel_main_inventory");
	std::set<LLUUID> selection_list = panel_main_inventory->getActivePanel()->getRootFolder()->getSelectionList();
	return selection_list.size();
}

LLInventoryPanel *LLSidepanelInventory::getActivePanel()
{
	if (!getVisible())
	{
		return NULL;
	}
	if (mInventoryPanel->getVisible())
	{
		return mPanelMainInventory->getActivePanel();
	}
	return NULL;
}

BOOL LLSidepanelInventory::isMainInventoryPanelActive() const
{
	return mInventoryPanel->getVisible();
}