/**
 * @file llpreviewanim.cpp
 * @brief LLPreviewAnim class implementation
 *
 * $LicenseInfo:firstyear=2004&license=viewerlgpl$
 * 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 "llpreviewanim.h"
#include "llbutton.h"
#include "llresmgr.h"
#include "llinventory.h"
#include "llvoavatarself.h"
#include "llagent.h"          // gAgent
#include "llkeyframemotion.h"
#include "llfilepicker.h"
#include "lllineeditor.h"
#include "lltrans.h"
#include "lluictrlfactory.h"
#include "lluictrlfactory.h"
#include "lldatapacker.h"

#include "llviewercontrol.h"    // <FS:Zi> Make advanced animation preview optional

extern LLAgent gAgent;
//const S32 ADVANCED_VPAD = 3; // <FS:Ansariel> Improved animation preview

LLPreviewAnim::LLPreviewAnim(const LLSD& key)
    : LLPreview( key )
{
    mCommitCallbackRegistrar.add("PreviewAnim.Play", boost::bind(&LLPreviewAnim::play, this, _2));
    // <FS:Zi> Make advanced animation preview optional
    mCommitCallbackRegistrar.add("PreviewAnim.Expand", boost::bind(&LLPreviewAnim::expand, this, _2));
    // </FS:Zi>
}

// virtual
bool LLPreviewAnim::postBuild()
{
    childSetCommitCallback("desc", LLPreview::onText, this);
    getChild<LLLineEditor>("desc")->setPrevalidate(&LLTextValidate::validateASCIIPrintableNoPipe);
    // <FS:Ansariel> Improved animation preview
    //getChild<LLTextBox>("adv_trigger")->setClickedCallback(boost::bind(&LLPreviewAnim::showAdvanced, this));
    //pAdvancedStatsTextBox = getChild<LLTextBox>("AdvancedStats");

    //// Assume that advanced stats start visible (for XUI preview tool's purposes)
    //pAdvancedStatsTextBox->setVisible(false);
    //LLRect rect = getRect();
    //reshape(rect.getWidth(), rect.getHeight() - pAdvancedStatsTextBox->getRect().getHeight() - ADVANCED_VPAD, false);
    // </FS:Ansariel>

    // <FS:Zi> Make advanced animation preview optional
    bool expanded = gSavedSettings.getBOOL("FSAnimationPreviewExpanded");

    getChild<LLView>("advanced_info_panel")->setVisible(!expanded);
    getChild<LLButton>("btn_expand")->setToggleState(expanded);

    expand(LLSD());
    // </FS:Zi>

    return LLPreview::postBuild();
}

// llinventorybridge also calls into here
void LLPreviewAnim::play(const LLSD& param)
{
    const LLInventoryItem *item = getItem();

    if(item)
    {
        LLUUID itemID=item->getAssetUUID();

        std::string btn_name = param.asString();
        LLButton* btn_inuse;
        LLButton* btn_other;

        if ("Inworld" == btn_name)
        {
            btn_inuse = getChild<LLButton>("Inworld");
            btn_other = getChild<LLButton>("Locally");
        }
        else if ("Locally" == btn_name)
        {
            btn_inuse = getChild<LLButton>("Locally");
            btn_other = getChild<LLButton>("Inworld");
        }
        else
        {
            return;
        }

        if (btn_inuse)
        {
            btn_inuse->toggleState();
        }

        if (btn_other)
        {
            btn_other->setEnabled(false);
        }

        if (getChild<LLUICtrl>(btn_name)->getValue().asBoolean() )
        {
            if("Inworld" == btn_name)
            {
                gAgent.sendAnimationRequest(itemID, ANIM_REQUEST_START);
            }
            else
            {
                gAgentAvatarp->startMotion(item->getAssetUUID());
            }

            LLMotion* motion = gAgentAvatarp->findMotion(itemID);
            if (motion)
            {
                mItemID = itemID;
                mDidStart = false;
            }
        }
        else
        {
            gAgentAvatarp->stopMotion(itemID);
            gAgent.sendAnimationRequest(itemID, ANIM_REQUEST_STOP);

            if (btn_other)
            {
                btn_other->setEnabled(true);
            }
        }
    }
}

// virtual
void LLPreviewAnim::draw()
{
    LLPreview::draw();
    if (!this->mItemID.isNull())
    {
        LLMotion* motion = gAgentAvatarp->findMotion(this->mItemID);
        if (motion)
        {
            if (motion->isStopped() && this->mDidStart)
            {
                cleanup();
            }
            if(gAgentAvatarp->isMotionActive(this->mItemID) && !this->mDidStart)
            {
                const LLInventoryItem *item = getItem();
                LLMotion* motion = gAgentAvatarp->findMotion(this->mItemID);
                if (item && motion)
                {
                    motion->setName(item->getName());
                }
                this->mDidStart = true;
            }
        }
    }
}

// virtual
void LLPreviewAnim::refreshFromItem()
{
    const LLInventoryItem* item = getItem();
    if (!item)
    {
        return;
    }

    // Preload motion
    // <FS:Ansariel> Improved animation preview
    //gAgentAvatarp->createMotion(item->getAssetUUID());
    LLMotion *motion = gAgentAvatarp->createMotion(item->getAssetUUID());
    if (motion)
    {
        LLTextBox* stats_box_left = getChild<LLTextBox>("AdvancedStatsLeft");
        LLTextBox* stats_box_right = getChild<LLTextBox>("AdvancedStatsRight");
        stats_box_left->setTextArg("[PRIORITY]", llformat("%d", motion->getPriority()));
        stats_box_left->setTextArg("[DURATION]", llformat("%.2f", motion->getDuration()));
        stats_box_left->setTextArg("[IS_LOOP]", (motion->getLoop() ? LLTrans::getString("PermYes") : LLTrans::getString("PermNo")));
        stats_box_right->setTextArg("[EASE_IN]", llformat("%.2f", motion->getEaseInDuration()));
        stats_box_right->setTextArg("[EASE_OUT]", llformat("%.2f", motion->getEaseOutDuration()));
        stats_box_right->setTextArg("[NUM_JOINTS]", llformat("%d", motion->getNumJointMotions()));
    }
    // </FS:Ansariel>

    LLPreview::refreshFromItem();
}

void LLPreviewAnim::cleanup()
{
    this->mItemID = LLUUID::null;
    this->mDidStart = false;
    getChild<LLUICtrl>("Inworld")->setValue(false);
    getChild<LLUICtrl>("Locally")->setValue(false);
    getChild<LLUICtrl>("Inworld")->setEnabled(true);
    getChild<LLUICtrl>("Locally")->setEnabled(true);
}

// virtual
void LLPreviewAnim::onClose(bool app_quitting)
{
    const LLInventoryItem *item = getItem();

    if(item)
    {
        gAgentAvatarp->stopMotion(item->getAssetUUID());
        gAgent.sendAnimationRequest(item->getAssetUUID(), ANIM_REQUEST_STOP);
    }
}

// <FS:Ansariel> Improved animation preview
//void LLPreviewAnim::showAdvanced()
//{
//    bool was_visible =  pAdvancedStatsTextBox->getVisible();
//
//    if (was_visible)
//    {
//        pAdvancedStatsTextBox->setVisible(false);
//        LLRect rect = getRect();
//        reshape(rect.getWidth(), rect.getHeight() - pAdvancedStatsTextBox->getRect().getHeight() - ADVANCED_VPAD, false);
//    }
//    else
//    {
//        pAdvancedStatsTextBox->setVisible(true);
//        LLRect rect = getRect();
//        reshape(rect.getWidth(), rect.getHeight() + pAdvancedStatsTextBox->getRect().getHeight() + ADVANCED_VPAD, false);
//
//        LLMotion *motion = NULL;
//        const LLInventoryItem* item = getItem();
//        if (item)
//        {
//            // if motion exists, will return existing one.
//            // Needed because viewer can purge motions
//            motion = gAgentAvatarp->createMotion(item->getAssetUUID());
//        }
//
//        // set text
//        if (motion)
//        {
//            pAdvancedStatsTextBox->setTextArg("[PRIORITY]", llformat("%d", pMotion->getPriority()));
//            pAdvancedStatsTextBox->setTextArg("[DURATION]", llformat("%.2f", pMotion->getDuration()));
//            pAdvancedStatsTextBox->setTextArg("[EASE_IN]", llformat("%.2f", pMotion->getEaseInDuration()));
//            pAdvancedStatsTextBox->setTextArg("[EASE_OUT]", llformat("%.2f", pMotion->getEaseOutDuration()));
//            pAdvancedStatsTextBox->setTextArg("[IS_LOOP]", (pMotion->getLoop() ? LLTrans::getString("PermYes") : LLTrans::getString("PermNo")));
//            pAdvancedStatsTextBox->setTextArg("[NUM_JOINTS]", llformat("%d", pMotion->getNumJointMotions()));
//        }
//    }
//}
// </FS:Ansariel>

// <FS:Zi> Make advanced animation preview optional
void LLPreviewAnim::expand(const LLSD& param)
{
    LLView* basic_info_panel = getChild<LLView>("basic_info_panel");
    LLView* advanced_info_panel = getChild<LLView>("advanced_info_panel");

    // I don't get why we can't use getLocalRect().mTop or something similar to get the .top from the XML -Zi
    S32 height = getRect().getHeight() - basic_info_panel->getRect().mTop;
    S32 basic_info_height = basic_info_panel->getRect().getHeight();
    S32 advanced_info_height = advanced_info_panel->getRect().getHeight();

    bool was_expanded = advanced_info_panel->getVisible();
    advanced_info_panel->setVisible(!was_expanded);

    height += basic_info_height;
    if (!was_expanded)
    {
        height += advanced_info_height;
    }

    LLRect rect = getRect();

    rect.setLeftTopAndSize(rect.mLeft, rect.mTop, rect.getWidth(), height);
    reshape(rect.getWidth(), rect.getHeight(), false);

    setRect(rect);

    if(getHost())
    {
        getHost()->growToFit(rect.getWidth(), height);
    }
}
// </FS:Zi>