/**
 * @file llfloatersavecamerapreset.cpp
 * @brief Floater to save a camera preset
 *
 * $LicenseInfo:firstyear=2020&license=viewerlgpl$
 * Second Life Viewer Source Code
 * Copyright (C) 2020, 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 "llfloatersavecamerapreset.h"

#include "llagent.h"
#include "llagentcamera.h"
#include "llbutton.h"
#include "llcombobox.h"
#include "llfloaterpreference.h"
#include "llfloaterreg.h"
#include "lllineeditor.h"
#include "llnotificationsutil.h"
#include "llpresetsmanager.h"
#include "llradiogroup.h"
#include "lltrans.h"
#include "llvoavatarself.h"

LLFloaterSaveCameraPreset::LLFloaterSaveCameraPreset(const LLSD &key)
    : LLModalDialog(key)
{
}

// virtual
bool LLFloaterSaveCameraPreset::postBuild()
{
    mPresetCombo = getChild<LLComboBox>("preset_combo");

    mNameEditor = getChild<LLLineEditor>("preset_txt_editor");
    mNameEditor->setKeystrokeCallback(boost::bind(&LLFloaterSaveCameraPreset::onPresetNameEdited, this), NULL);

    mSaveButton = getChild<LLButton>("save");
    mSaveButton->setCommitCallback(boost::bind(&LLFloaterSaveCameraPreset::onBtnSave, this));

    mSaveRadioGroup = getChild<LLRadioGroup>("radio_save_preset");
    mSaveRadioGroup->setCommitCallback(boost::bind(&LLFloaterSaveCameraPreset::onSwitchSaveReplace, this));

    getChild<LLButton>("cancel")->setCommitCallback(boost::bind(&LLFloaterSaveCameraPreset::onBtnCancel, this));

    LLPresetsManager::instance().setPresetListChangeCallback(boost::bind(&LLFloaterSaveCameraPreset::onPresetsListChange, this));

    return true;
}

void LLFloaterSaveCameraPreset::onPresetNameEdited()
{
    if (mSaveRadioGroup->getSelectedIndex() == 0)
    {
        // Disable saving a preset having empty name.
        std::string name = mNameEditor->getValue();
        mSaveButton->setEnabled(!name.empty());
    }
}

void LLFloaterSaveCameraPreset::onOpen(const LLSD& key)
{
    LLModalDialog::onOpen(key);
    S32 index = 0;
    if (key.has("index"))
    {
        index = key["index"].asInteger();
    }

    LLPresetsManager::getInstance()->setPresetNamesInComboBox(PRESETS_CAMERA, mPresetCombo, DEFAULT_BOTTOM);

    mSaveRadioGroup->setSelectedIndex(index);
    onPresetNameEdited();
    onSwitchSaveReplace();
}

void LLFloaterSaveCameraPreset::onBtnSave()
{
    bool is_saving_new = mSaveRadioGroup->getSelectedIndex() == 0;
    std::string name = is_saving_new ? mNameEditor->getText() : mPresetCombo->getSimple();

    if ((name == LLTrans::getString(PRESETS_DEFAULT)) || (name == PRESETS_DEFAULT))
    {
        LLNotificationsUtil::add("DefaultPresetNotSaved");
    }
    else
    {
        if (isAgentAvatarValid() && gAgentAvatarp->getParent())
        {
            gSavedSettings.setLLSD("AvatarSitRotation", gAgent.getFrameAgent().getQuaternion().getValue());
        }
        if (gAgentCamera.isJoystickCameraUsed())
        {
            gSavedSettings.setVector3("CameraOffsetRearView", gAgentCamera.getCurrentCameraOffset());
            gSavedSettings.setVector3d("FocusOffsetRearView", gAgentCamera.getCurrentFocusOffset());
            gAgentCamera.resetCameraZoomFraction();
            gAgentCamera.setFocusOnAvatar(true, true, false);
        }
        else
        {
            LLVector3 camera_offset = gSavedSettings.getVector3("CameraOffsetRearView") * gAgentCamera.getCurrentCameraZoomFraction();
            gSavedSettings.setVector3("CameraOffsetRearView", camera_offset);
            gAgentCamera.resetCameraZoomFraction();
        }
        if (is_saving_new)
        {
            std::list<std::string> preset_names;
            LLPresetsManager::getInstance()->loadPresetNamesFromDir(PRESETS_CAMERA, preset_names, DEFAULT_HIDE);
            if (std::find(preset_names.begin(), preset_names.end(), name) != preset_names.end())
            {
                LLSD args;
                args["NAME"] = name;
                LLNotificationsUtil::add("PresetAlreadyExists", args);
                return;
            }
        }
        if (!LLPresetsManager::getInstance()->savePreset(PRESETS_CAMERA, name))
        {
            LLSD args;
            args["NAME"] = name;
            LLNotificationsUtil::add("PresetNotSaved", args);
        }
    }

    closeFloater();
}

void LLFloaterSaveCameraPreset::onPresetsListChange()
{
    LLPresetsManager::getInstance()->setPresetNamesInComboBox(PRESETS_CAMERA, mPresetCombo, DEFAULT_BOTTOM);
}

void LLFloaterSaveCameraPreset::onBtnCancel()
{
    closeFloater();
}

void LLFloaterSaveCameraPreset::onSwitchSaveReplace()
{
    bool is_saving_new = mSaveRadioGroup->getSelectedIndex() == 0;
    std::string label = is_saving_new ? getString("btn_label_save") : getString("btn_label_replace");
    mSaveButton->setLabel(label);
    mNameEditor->setEnabled(is_saving_new);
    mPresetCombo->setEnabled(!is_saving_new);
    if (is_saving_new)
    {
        onPresetNameEdited();
    }
    else
    {
        mSaveButton->setEnabled(true);
    }
}