/** 
* @file llpanelgroupbulkban.cpp
*
* $LicenseInfo:firstyear=2013&license=viewerlgpl$
* Second Life Viewer Source Code
* Copyright (C) 2013, 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 "llpanelgroupbulkban.h"
#include "llpanelgroupbulk.h"
#include "llpanelgroupbulkimpl.h"

#include "llagent.h"
#include "llavatarnamecache.h"
#include "llavataractions.h"
#include "llfloateravatarpicker.h"
#include "llbutton.h"
#include "llcallingcard.h"
#include "llcombobox.h"
#include "llgroupactions.h"
#include "llgroupmgr.h"
#include "llnamelistctrl.h"
#include "llnotificationsutil.h"
#include "llscrolllistitem.h"
#include "llslurl.h"
#include "llspinctrl.h"
#include "lltextbox.h"
#include "llviewerobject.h"
#include "llviewerobjectlist.h"
#include "lluictrlfactory.h"
#include "llviewerwindow.h"

#include <boost/foreach.hpp>

LLPanelGroupBulkBan::LLPanelGroupBulkBan(const LLUUID& group_id) : LLPanelGroupBulk(group_id)
{
	// Pass on construction of this panel to the control factory.
	buildFromFile( "panel_group_bulk_ban.xml");
}

BOOL LLPanelGroupBulkBan::postBuild()
{
	BOOL recurse = TRUE;

	mImplementation->mLoadingText = getString("loading");
	mImplementation->mGroupName = getChild<LLTextBox>("group_name_text", recurse);
	mImplementation->mBulkAgentList = getChild<LLNameListCtrl>("banned_agent_list", recurse);
	if ( mImplementation->mBulkAgentList )
	{
		mImplementation->mBulkAgentList->setCommitOnSelectionChange(TRUE);
		mImplementation->mBulkAgentList->setCommitCallback(LLPanelGroupBulkImpl::callbackSelect, mImplementation);
	}

	LLButton* button = getChild<LLButton>("add_button", recurse);
	if ( button )
	{
		// default to opening avatarpicker automatically
		// (*impl::callbackClickAdd)((void*)this);
		button->setClickedCallback(LLPanelGroupBulkImpl::callbackClickAdd, this);
	}

	mImplementation->mRemoveButton = 
		getChild<LLButton>("remove_button", recurse);
	if ( mImplementation->mRemoveButton )
	{
		mImplementation->mRemoveButton->setClickedCallback(LLPanelGroupBulkImpl::callbackClickRemove, mImplementation);
		mImplementation->mRemoveButton->setEnabled(FALSE);
	}

	mImplementation->mOKButton = 
		getChild<LLButton>("ban_button", recurse);
	if ( mImplementation->mOKButton )
	{
		mImplementation->mOKButton->setClickedCallback(LLPanelGroupBulkBan::callbackClickSubmit, this);
		mImplementation->mOKButton->setEnabled(FALSE);
	}

	button = getChild<LLButton>("cancel_button", recurse);
	if ( button )
	{
		button->setClickedCallback(LLPanelGroupBulkImpl::callbackClickCancel, mImplementation);
	}

	mImplementation->mTooManySelected = getString("ban_selection_too_large");
	mImplementation->mBanNotPermitted = getString("ban_not_permitted");
	mImplementation->mBanLimitFail = getString("ban_limit_fail");
	mImplementation->mCannotBanYourself = getString("cant_ban_yourself");

	update();
	return TRUE;
}

// TODO: Refactor the shitty callback functions with void* -- just use boost::bind to call submit() instead.
void LLPanelGroupBulkBan::callbackClickSubmit(void* userdata)
{
	LLPanelGroupBulkBan* selfp = (LLPanelGroupBulkBan*)userdata;

	if(selfp)
		selfp->submit();
}


void LLPanelGroupBulkBan::submit()
{
	if (!gAgent.hasPowerInGroup(mImplementation->mGroupID, GP_GROUP_BAN_ACCESS))
	{
		// Fail! Agent no longer have ban rights. Permissions could have changed after button was pressed.
		LLSD msg;
		msg["MESSAGE"] = mImplementation->mBanNotPermitted;
		LLNotificationsUtil::add("GenericAlert", msg);
		(*(mImplementation->mCloseCallback))(mImplementation->mCloseCallbackUserData);
		return;
	}
	LLGroupMgrGroupData * group_datap = LLGroupMgr::getInstance()->getGroupData(mImplementation->mGroupID);
	if (group_datap && group_datap->mBanList.size() >= GB_MAX_BANNED_AGENTS)
	{
		// Fail! Size limit exceeded. List could have updated after button was pressed.
		LLSD msg;
		msg["MESSAGE"] = mImplementation->mBanLimitFail;
		LLNotificationsUtil::add("GenericAlert", msg);
		(*(mImplementation->mCloseCallback))(mImplementation->mCloseCallbackUserData);
		return;
	}
	std::vector<LLUUID> banned_agent_list;	
	std::vector<LLScrollListItem*> agents = mImplementation->mBulkAgentList->getAllData();
	std::vector<LLScrollListItem*>::iterator iter = agents.begin();
	for(;iter != agents.end(); ++iter)
	{
		LLScrollListItem* agent = *iter;
		banned_agent_list.push_back(agent->getUUID());
	}

	const S32 MAX_BANS_PER_REQUEST = 100; // Max bans per request. 100 to match server cap.
	if (banned_agent_list.size() > MAX_BANS_PER_REQUEST)
	{
		// Fail!
		LLSD msg;
		msg["MESSAGE"] = mImplementation->mTooManySelected;
		LLNotificationsUtil::add("GenericAlert", msg);
		(*(mImplementation->mCloseCallback))(mImplementation->mCloseCallbackUserData);
		return;
	}

	// remove already banned users and yourself from request.
	std::vector<LLAvatarName> banned_avatar_names;
	std::vector<LLAvatarName> out_of_limit_names;
	bool banning_self = FALSE;
	std::vector<LLUUID>::iterator conflict = std::find(banned_agent_list.begin(), banned_agent_list.end(), gAgent.getID());
	if (conflict != banned_agent_list.end())
	{
		banned_agent_list.erase(conflict);
		banning_self = TRUE;
	}
	if (group_datap)
	{
		BOOST_FOREACH(const LLGroupMgrGroupData::ban_list_t::value_type& group_ban_pair, group_datap->mBanList)
		{
			const LLUUID& group_ban_agent_id = group_ban_pair.first;
			std::vector<LLUUID>::iterator conflict = std::find(banned_agent_list.begin(), banned_agent_list.end(), group_ban_agent_id);
			if (conflict != banned_agent_list.end())
			{
				LLAvatarName av_name;
				LLAvatarNameCache::get(group_ban_agent_id, &av_name);
				banned_avatar_names.push_back(av_name);

				banned_agent_list.erase(conflict);
				if (banned_agent_list.size() == 0)
				{
					break;
				}
			}
		}
		// this check should always be the last one before we send the request.
		// Otherwise we have a possibility of cutting more then we need to.
		if (banned_agent_list.size() > GB_MAX_BANNED_AGENTS - group_datap->mBanList.size())
		{
			std::vector<LLUUID>::iterator exeedes_limit = banned_agent_list.begin() + GB_MAX_BANNED_AGENTS - group_datap->mBanList.size();
			for (std::vector<LLUUID>::iterator itor = exeedes_limit ; 
				itor != banned_agent_list.end(); ++itor)
			{
				LLAvatarName av_name;
				LLAvatarNameCache::get(*itor, &av_name);
				out_of_limit_names.push_back(av_name);
			}
			banned_agent_list.erase(exeedes_limit,banned_agent_list.end());
		}
	}

	// sending request and ejecting members
	if (banned_agent_list.size() != 0)
	{
		LLGroupMgr::getInstance()->sendGroupBanRequest(LLGroupMgr::REQUEST_POST, mImplementation->mGroupID, LLGroupMgr::BAN_CREATE | LLGroupMgr::BAN_UPDATE, banned_agent_list);
		LLGroupMgr::getInstance()->sendGroupMemberEjects(mImplementation->mGroupID, banned_agent_list);
	}

	// building notification
	if (banned_avatar_names.size() > 0 || banning_self || out_of_limit_names.size() > 0)
	{
		std::string reasons;
		if(banned_avatar_names.size() > 0)
		{
			reasons = "\n " + buildResidentsArgument(banned_avatar_names, "residents_already_banned");
		}

		if(banning_self)
		{
			reasons += "\n " + mImplementation->mCannotBanYourself;
		}

		if(out_of_limit_names.size() > 0)
		{
			reasons += "\n " + buildResidentsArgument(out_of_limit_names, "ban_limit_reached");
		}

		LLStringUtil::format_map_t msg_args;
		msg_args["[REASONS]"] = reasons;
		LLSD msg;
		if (banned_agent_list.size() == 0)
		{
			msg["MESSAGE"] = getString("ban_failed", msg_args);
		}
		else
		{
			msg["MESSAGE"] = getString("partial_ban", msg_args);
		}
		LLNotificationsUtil::add("GenericAlert", msg);
	}
	
	//then close
	(*(mImplementation->mCloseCallback))(mImplementation->mCloseCallbackUserData);
}

std::string LLPanelGroupBulkBan::buildResidentsArgument(std::vector<LLAvatarName> avatar_names, const std::string &format)
{
	std::string names_string;
	LLAvatarActions::buildResidentsString(avatar_names, names_string);
	LLStringUtil::format_map_t args;
	args["[RESIDENTS]"] = names_string;
	return getString(format, args);
}
