/**
 * @file llfloatervoiceeffect.cpp
 * @author Aimee
 * @brief Selection and preview of voice effect.
 *
 * $LicenseInfo:firstyear=2010&license=viewerlgpl$
 * 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 "llfloatervoiceeffect.h"

#include "llscrolllistctrl.h"
#include "lltrans.h"
#include "llweb.h"

LLFloaterVoiceEffect::LLFloaterVoiceEffect(const LLSD& key)
    : LLFloater(key)
{
    mCommitCallbackRegistrar.add("VoiceEffect.Record",  boost::bind(&LLFloaterVoiceEffect::onClickRecord, this));
    mCommitCallbackRegistrar.add("VoiceEffect.Play",    boost::bind(&LLFloaterVoiceEffect::onClickPlay, this));
    mCommitCallbackRegistrar.add("VoiceEffect.Stop",    boost::bind(&LLFloaterVoiceEffect::onClickStop, this));
//  mCommitCallbackRegistrar.add("VoiceEffect.Activate", boost::bind(&LLFloaterVoiceEffect::onClickActivate, this));
}

// virtual
LLFloaterVoiceEffect::~LLFloaterVoiceEffect()
{
    if(LLVoiceClient::instanceExists())
    {
        LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
        if (effect_interface)
        {
            effect_interface->removeObserver(this);
        }
    }
}

// virtual
bool LLFloaterVoiceEffect::postBuild()
{
    setDefaultBtn("record_btn");
    getChild<LLButton>("record_btn")->setFocus(true);
    getChild<LLUICtrl>("voice_morphing_link")->setTextArg("[URL]", LLTrans::getString("voice_morphing_url"));

    mVoiceEffectList = getChild<LLScrollListCtrl>("voice_effect_list");
    if (mVoiceEffectList)
    {
        mVoiceEffectList->setCommitCallback(boost::bind(&LLFloaterVoiceEffect::onClickPlay, this));
//      mVoiceEffectList->setDoubleClickCallback(boost::bind(&LLFloaterVoiceEffect::onClickActivate, this));
    }

    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (effect_interface)
    {
        effect_interface->addObserver(this);

        // Disconnect from the current voice channel ready to record a voice sample for previewing
        effect_interface->enablePreviewBuffer(true);
    }

    refreshEffectList();
    updateControls();

    return true;
}

// virtual
void LLFloaterVoiceEffect::onClose(bool app_quitting)
{
    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (effect_interface)
    {
        effect_interface->enablePreviewBuffer(false);
    }
}

void LLFloaterVoiceEffect::refreshEffectList()
{
    if (!mVoiceEffectList)
    {
        return;
    }

    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (!effect_interface)
    {
        mVoiceEffectList->setEnabled(false);
        return;
    }

    LL_DEBUGS("Voice")<< "Rebuilding Voice Morph list."<< LL_ENDL;

    // Preserve selected items and scroll position
    S32 scroll_pos = mVoiceEffectList->getScrollPos();
    uuid_vec_t selected_items;
    std::vector<LLScrollListItem*> items = mVoiceEffectList->getAllSelected();
    for(std::vector<LLScrollListItem*>::const_iterator it = items.begin(); it != items.end(); it++)
    {
        selected_items.push_back((*it)->getUUID());
    }

    mVoiceEffectList->deleteAllItems();

    {
        // Add the "No Voice Morph" entry
        LLSD element;

        element["id"] = LLUUID::null;
        element["columns"][NAME_COLUMN]["column"] = "name";
        element["columns"][NAME_COLUMN]["value"] = getString("no_voice_effect");
        element["columns"][NAME_COLUMN]["font"]["style"] = "BOLD";

        LLScrollListItem* sl_item = mVoiceEffectList->addElement(element, ADD_BOTTOM);
        // *HACK: Copied from llfloatergesture.cpp : ["font"]["style"] does not affect font style :(
        if(sl_item)
        {
            ((LLScrollListText*)sl_item->getColumn(0))->setFontStyle(LLFontGL::BOLD);
        }
    }

    // Add each Voice Morph template, if there are any (template list includes all usable effects)
    const voice_effect_list_t& template_list = effect_interface->getVoiceEffectTemplateList();
    if (!template_list.empty())
    {
        for (voice_effect_list_t::const_iterator it = template_list.begin(); it != template_list.end(); ++it)
        {
            const LLUUID& effect_id = it->second;

            std::string localized_effect = "effect_" + it->first;
            std::string effect_name = hasString(localized_effect) ? getString(localized_effect) : it->first;  // XML contains localized effects names

            LLSD effect_properties = effect_interface->getVoiceEffectProperties(effect_id);

            // Tag the active effect.
            if (effect_id == LLVoiceClient::instance().getVoiceEffectDefault())
            {
                effect_name += " " + getString("active_voice_effect");
            }

            // Tag available effects that are new this session
            if (effect_properties["is_new"].asBoolean())
            {
                effect_name += " " + getString("new_voice_effect");
            }

            LLDate expiry_date = effect_properties["expiry_date"].asDate();
            bool is_template_only = effect_properties["template_only"].asBoolean();

            std::string font_style = "NORMAL";
            if (!is_template_only)
            {
                font_style = "BOLD";
            }

            LLSD element;
            element["id"] = effect_id;

            element["columns"][NAME_COLUMN]["column"] = "name";
            element["columns"][NAME_COLUMN]["value"] = effect_name;
            element["columns"][NAME_COLUMN]["font"]["style"] = font_style;

            element["columns"][1]["column"] = "expires";
            if (!is_template_only)
            {
                element["columns"][DATE_COLUMN]["value"] = expiry_date;
                element["columns"][DATE_COLUMN]["type"] = "date";
            }
            else {
                element["columns"][DATE_COLUMN]["value"] = getString("unsubscribed_voice_effect");
            }
//          element["columns"][DATE_COLUMN]["font"]["style"] = "NORMAL";

            LLScrollListItem* sl_item = mVoiceEffectList->addElement(element, ADD_BOTTOM);
            // *HACK: Copied from llfloatergesture.cpp : ["font"]["style"] does not affect font style :(
            if(sl_item)
            {
                LLFontGL::StyleFlags style = is_template_only ? LLFontGL::NORMAL : LLFontGL::BOLD;
                LLScrollListText* slt = dynamic_cast<LLScrollListText*>(sl_item->getColumn(0));
                llassert(slt);
                if (slt)
                {
                    slt->setFontStyle(style);
                }
            }
        }
    }

    // Re-select items that were selected before, and restore the scroll position
    for(uuid_vec_t::iterator it = selected_items.begin(); it != selected_items.end(); it++)
    {
        mVoiceEffectList->selectByID(*it);
    }
    mVoiceEffectList->setScrollPos(scroll_pos);
    mVoiceEffectList->setEnabled(true);
}

void LLFloaterVoiceEffect::updateControls()
{
    bool recording = false;

    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (effect_interface)
    {
        recording = effect_interface->isPreviewRecording();
    }

    getChild<LLButton>("record_btn")->setVisible(!recording);
    getChild<LLButton>("record_stop_btn")->setVisible(recording);
}

// virtual
void LLFloaterVoiceEffect::onVoiceEffectChanged(bool effect_list_updated)
{
    if (effect_list_updated)
    {
        refreshEffectList();
    }
    updateControls();
}

void LLFloaterVoiceEffect::onClickRecord()
{
    LL_DEBUGS("Voice") << "Record clicked" << LL_ENDL;
    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (effect_interface)
    {
        effect_interface->recordPreviewBuffer();
    }
    updateControls();
}

void LLFloaterVoiceEffect::onClickPlay()
{
    LL_DEBUGS("Voice") << "Play clicked" << LL_ENDL;
    if (!mVoiceEffectList)
    {
        return;
    }

    const LLUUID& effect_id = mVoiceEffectList->getCurrentID();

    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (effect_interface)
    {
        effect_interface->playPreviewBuffer(effect_id);
    }
    updateControls();
}

void LLFloaterVoiceEffect::onClickStop()
{
    LL_DEBUGS("Voice") << "Stop clicked" << LL_ENDL;
    LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
    if (effect_interface)
    {
        effect_interface->stopPreviewBuffer();
    }
    updateControls();
}

//void LLFloaterVoiceEffect::onClickActivate()
//{
//  LLVoiceEffectInterface* effect_interface = LLVoiceClient::instance().getVoiceEffectInterface();
//  if (effect_interface && mVoiceEffectList)
//  {
//      effect_interface->setVoiceEffect(mVoiceEffectList->getCurrentID());
//  }
//}