/**
 * @file llchatitemscontainer.cpp
 * @brief chat history scrolling panel implementation
 *
 * $LicenseInfo:firstyear=2009&license=viewerlgpl$
 * 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 "llchatitemscontainerctrl.h"
#include "llchatmsgbox.h"
#include "lltextbox.h"

#include "llavataractions.h"
#include "llavatariconctrl.h"
#include "llcommandhandler.h"
#include "llfloaterreg.h"
#include "lllocalcliprect.h"
#include "lltrans.h"
#include "llfloaterimnearbychat.h"

#include "llviewercontrol.h"
#include "llagentdata.h"

#include "llslurl.h"

static constexpr S32 msg_left_offset = 10;
static constexpr S32 msg_right_offset = 10;
static constexpr S32 msg_height_pad = 5;

//*******************************************************************************************************************
// LLObjectHandler
//*******************************************************************************************************************

// handle secondlife:///app/object/<ID>/inspect SLURLs
class LLObjectHandler : public LLCommandHandler
{
public:
    LLObjectHandler() : LLCommandHandler("object", UNTRUSTED_BLOCK) { }

    bool handle(const LLSD& params, const LLSD& query_map, const std::string& grid, LLMediaCtrl* web)
    {
        if (params.size() < 2) return false;

        LLUUID object_id;
        if (!object_id.set(params[0], false))
        {
            return false;
        }

        const std::string verb = params[1].asString();

        if (verb == "inspect")
        {
            LLFloaterReg::showInstance("inspect_object", LLSD().with("object_id", object_id));
            return true;
        }

        return false;
    }
};

LLObjectHandler gObjectHandler;

//*******************************************************************************************************************
//LLFloaterIMNearbyChatToastPanel
//*******************************************************************************************************************

LLFloaterIMNearbyChatToastPanel* LLFloaterIMNearbyChatToastPanel::createInstance()
{
    LLFloaterIMNearbyChatToastPanel* item = new LLFloaterIMNearbyChatToastPanel();
    item->buildFromFile("panel_chat_item.xml");
    item->setFollows(FOLLOWS_NONE);
    return item;
}

void    LLFloaterIMNearbyChatToastPanel::reshape        (S32 width, S32 height, bool called_from_parent )
{
    LLPanel::reshape(width, height,called_from_parent);

    // reshape() may be called from LLView::initFromParams() before the children are created.
    // We call findChild() instead of getChild() here to avoid creating dummy controls.
    LLUICtrl* msg_text = findChild<LLUICtrl>("msg_text", false);
    LLUICtrl* icon = findChild<LLUICtrl>("avatar_icon", false);

    if (!msg_text || !icon)
    {
        return;
    }

    LLRect msg_text_rect = msg_text->getRect();
    LLRect avatar_rect = icon->getRect();

    avatar_rect.setLeftTopAndSize(2,height-2,avatar_rect.getWidth(),avatar_rect.getHeight());
    icon->setRect(avatar_rect);


    msg_text_rect.setLeftTopAndSize( avatar_rect.mRight + msg_left_offset,
        height - msg_height_pad,
        width - avatar_rect.mRight  - msg_left_offset - msg_right_offset,
        height - 2*msg_height_pad);
    msg_text->reshape( msg_text_rect.getWidth(), msg_text_rect.getHeight(), 1);
    msg_text->setRect(msg_text_rect);
}

bool LLFloaterIMNearbyChatToastPanel::postBuild()
{
    return LLPanel::postBuild();
}

void LLFloaterIMNearbyChatToastPanel::addMessage(LLSD& notification)
{
    std::string     messageText = notification["message"].asString();       // UTF-8 line of text


    std::string color_name = notification["text_color"].asString();

    LLColor4 textColor = LLUIColorTable::instance().getColor(color_name);
    textColor.mV[VALPHA] =notification["color_alpha"].asReal();

    S32 font_size = notification["font_size"].asInteger();

    LLFontGL*       messageFont;
    switch(font_size)
    {
        case 0: messageFont = LLFontGL::getFontSansSerifSmall(); break;
        default:
        case 1: messageFont = LLFontGL::getFontSansSerif();     break;
        case 2: messageFont = LLFontGL::getFontSansSerifBig();  break;
    }

    //append text
    {
        LLStyle::Params style_params;
        style_params.color(textColor);
        std::string font_name = LLFontGL::nameFromFont(messageFont);
        std::string font_style_size = LLFontGL::sizeFromFont(messageFont);
        style_params.font.name(font_name);
        style_params.font.size(font_style_size);

        int chat_type = notification["chat_type"].asInteger();

        if(notification["chat_style"].asInteger()== CHAT_STYLE_IRC)
        {
            style_params.font.style = "ITALIC";
        }
        else if( chat_type == CHAT_TYPE_SHOUT)
        {
            style_params.font.style = "BOLD";
        }
        else if( chat_type == CHAT_TYPE_WHISPER)
        {
            style_params.font.style = "ITALIC";
        }
        mMsgText->appendText(messageText, true, style_params);
    }

    snapToMessageHeight();

}

void LLFloaterIMNearbyChatToastPanel::init(LLSD& notification)
{
    std::string     messageText = notification["message"].asString();       // UTF-8 line of text
    std::string     fromName = notification["from"].asString(); // agent or object name
    mFromID = notification["from_id"].asUUID();     // agent id or object id
    mFromName = fromName;

    int sType = notification["source"].asInteger();
    mSourceType = (EChatSourceType)sType;

    std::string color_name = notification["text_color"].asString();

    LLColor4 textColor = LLUIColorTable::instance().getColor(color_name);
    textColor.mV[VALPHA] =notification["color_alpha"].asReal();

    S32 font_size = notification["font_size"].asInteger();

    LLFontGL*       messageFont;
    switch(font_size)
    {
        case 0: messageFont = LLFontGL::getFontSansSerifSmall(); break;
        default:
        case 1: messageFont = LLFontGL::getFontSansSerif();     break;
        case 2: messageFont = LLFontGL::getFontSansSerifBig();  break;
    }

    mMsgText = getChild<LLChatMsgBox>("msg_text", false);
    mMsgText->setContentTrusted(false);
    mMsgText->setIsFriendCallback(LLAvatarActions::isFriend);

    mMsgText->setText(std::string(""));

    if ( notification["chat_style"].asInteger() != CHAT_STYLE_IRC )
    {
        std::string str_sender;

        str_sender = fromName;

        str_sender+=" ";

        //append sender name
        if (mSourceType == CHAT_SOURCE_AGENT || mSourceType == CHAT_SOURCE_OBJECT)
        {
            LLStyle::Params style_params_name;

            LLColor4 user_name_color = LLUIColorTable::instance().getColor("HTMLLinkColor");
            style_params_name.color(user_name_color);

            std::string font_name = LLFontGL::nameFromFont(messageFont);
            std::string font_style_size = LLFontGL::sizeFromFont(messageFont);
            style_params_name.font.name(font_name);
            style_params_name.font.size(font_style_size);

            style_params_name.link_href = notification["sender_slurl"].asString();
            style_params_name.is_link = true;

            mMsgText->appendText(str_sender, false, style_params_name);

        }
        else
        {
            mMsgText->appendText(str_sender, false);
        }
    }

    S32 chars_in_line = mMsgText->getRect().getWidth() / messageFont->getWidth("c");
    S32 max_lines = notification["available_height"].asInteger() / (mMsgText->getTextPixelHeight() + 4);
    int lines = 0;
    int chars = 0;

    //Remove excessive chars if message does not fit in available height. MAINT-6891
    std::string::iterator it;
    for (it = messageText.begin(); it < messageText.end() && lines < max_lines; it++)
    {
        if (*it == '\n')
            ++lines;
        else
            ++chars;

        if (chars >= chars_in_line)
        {
            chars = 0;
            ++lines;
        }
    }

    if (it < messageText.end())
    {
        messageText.erase(it, messageText.end());
        messageText += " ...";
    }

    //append text
    {
        LLStyle::Params style_params;
        style_params.color(textColor);
        std::string font_name = LLFontGL::nameFromFont(messageFont);
        std::string font_style_size = LLFontGL::sizeFromFont(messageFont);
        style_params.font.name(font_name);
        style_params.font.size(font_style_size);

        int chat_type = notification["chat_type"].asInteger();

        if(notification["chat_style"].asInteger()== CHAT_STYLE_IRC)
        {
            style_params.font.style = "ITALIC";
        }
        else if( chat_type == CHAT_TYPE_SHOUT)
        {
            style_params.font.style = "BOLD";
        }
        else if( chat_type == CHAT_TYPE_WHISPER)
        {
            style_params.font.style = "ITALIC";
        }
        mMsgText->appendText(messageText, false, style_params);
    }


    snapToMessageHeight();

    mIsDirty = true;//will set Avatar Icon in draw
}

void    LLFloaterIMNearbyChatToastPanel::snapToMessageHeight    ()
{
    S32 new_height = llmax (mMsgText->getTextPixelHeight() + 2*mMsgText->getVPad() + 2*msg_height_pad, 25);

    LLRect panel_rect = getRect();

    panel_rect.setLeftTopAndSize( panel_rect.mLeft, panel_rect.mTop, panel_rect.getWidth(), new_height);

    reshape( getRect().getWidth(), getRect().getHeight(), 1);

    setRect(panel_rect);

}

void LLFloaterIMNearbyChatToastPanel::onMouseLeave          (S32 x, S32 y, MASK mask)
{

}
void LLFloaterIMNearbyChatToastPanel::onMouseEnter              (S32 x, S32 y, MASK mask)
{
    if(mSourceType != CHAT_SOURCE_AGENT)
        return;
}

bool    LLFloaterIMNearbyChatToastPanel::handleMouseDown    (S32 x, S32 y, MASK mask)
{
    return LLPanel::handleMouseDown(x,y,mask);
}

bool    LLFloaterIMNearbyChatToastPanel::handleMouseUp  (S32 x, S32 y, MASK mask)
{
    /*
    fix for request  EXT-4780
    leaving this commented since I don't remember why ew block those messages...
    if(mSourceType != CHAT_SOURCE_AGENT)
        return LLPanel::handleMouseUp(x,y,mask);
    */

    S32 local_x = x - mMsgText->getRect().mLeft;
    S32 local_y = y - mMsgText->getRect().mBottom;

    //if text_box process mouse up (ussually this is click on url) - we didn't show nearby_chat.
    if (mMsgText->pointInView(local_x, local_y))
    {
        if (mMsgText->handleMouseUp(local_x, local_y, mask))
            return true;

        LLFloaterReg::getTypedInstance<LLFloaterIMNearbyChat>("nearby_chat")->showHistory();
        return false;
    }

    LLFloaterReg::getTypedInstance<LLFloaterIMNearbyChat>("nearby_chat")->showHistory();
    return LLPanel::handleMouseUp(x, y, mask);
}

void    LLFloaterIMNearbyChatToastPanel::setHeaderVisibility(EShowItemHeader e)
{
    LLUICtrl* icon = getChild<LLUICtrl>("avatar_icon", false);
    if(icon)
        icon->setVisible(e == CHATITEMHEADER_SHOW_ONLY_ICON || e==CHATITEMHEADER_SHOW_BOTH);

}

bool    LLFloaterIMNearbyChatToastPanel::canAddText ()
{
    LLChatMsgBox* msg_text = findChild<LLChatMsgBox>("msg_text");
    if(!msg_text)
        return false;
    return msg_text->getLineCount()<10;
}

bool    LLFloaterIMNearbyChatToastPanel::handleRightMouseDown(S32 x, S32 y, MASK mask)
{
    LLUICtrl* avatar_icon = getChild<LLUICtrl>("avatar_icon", false);

    S32 local_x = x - avatar_icon->getRect().mLeft;
    S32 local_y = y - avatar_icon->getRect().mBottom;

    //eat message for avatar icon if msg was from object
    if(avatar_icon->pointInView(local_x, local_y) && mSourceType != CHAT_SOURCE_AGENT)
        return true;
    return LLPanel::handleRightMouseDown(x,y,mask);
}
void LLFloaterIMNearbyChatToastPanel::draw()
{
    LLPanel::draw();

    if(mIsDirty)
    {
        LLAvatarIconCtrl* icon = getChild<LLAvatarIconCtrl>("avatar_icon", false);
        if(icon)
        {
            icon->setDrawTooltip(mSourceType == CHAT_SOURCE_AGENT);
            if(mSourceType == CHAT_SOURCE_OBJECT)
                icon->setValue(LLSD("OBJECT_Icon"));
            else if(mSourceType == CHAT_SOURCE_SYSTEM)
                icon->setValue(LLSD("SL_Logo"));
            else if(mSourceType == CHAT_SOURCE_AGENT)
                icon->setValue(mFromID);
            else if(!mFromID.isNull())
                icon->setValue(mFromID);
        }
        mIsDirty = false;
    }
}