/* Copyright 2013-2019 MultiMC Contributors
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <QMessageBox>
#include <QtGui>

#include "MCModInfoFrame.h"
#include "ui_MCModInfoFrame.h"
#include "dialogs/CustomMessageBox.h"

void MCModInfoFrame::updateWithMod(Mod &m)
{
    if (m.type() == m.MOD_FOLDER)
    {
        clear();
        return;
    }

    QString text = "";
    QString name = "";
    if (m.name().isEmpty())
        name = m.mmc_id();
    else
        name = m.name();

    if (m.homeurl().isEmpty())
        text = name;
    else
        text = "<a href=\"" + m.homeurl() + "\">" + name + "</a>";
    if (!m.authors().isEmpty())
        text += " by " + m.authors();

    setModText(text);

    if (m.description().isEmpty())
    {
        setModDescription(QString());
    }
    else
    {
        setModDescription(m.description());
    }
}

void MCModInfoFrame::clear()
{
    setModText(QString());
    setModDescription(QString());
}

MCModInfoFrame::MCModInfoFrame(QWidget *parent) :
    QFrame(parent),
    ui(new Ui::MCModInfoFrame)
{
    ui->setupUi(this);
    ui->label_ModDescription->setHidden(true);
    ui->label_ModText->setHidden(true);
    updateHiddenState();
}

MCModInfoFrame::~MCModInfoFrame()
{
    delete ui;
}

void MCModInfoFrame::updateHiddenState()
{
    if(ui->label_ModDescription->isHidden() && ui->label_ModText->isHidden())
    {
        setHidden(true);
    }
    else
    {
        setHidden(false);
    }
}

void MCModInfoFrame::setModText(QString text)
{
    if(text.isEmpty())
    {
        ui->label_ModText->setHidden(true);
    }
    else
    {
        ui->label_ModText->setText(text);
        ui->label_ModText->setHidden(false);
    }
    updateHiddenState();
}

void MCModInfoFrame::setModDescription(QString text)
{
    if(text.isEmpty())
    {
        ui->label_ModDescription->setHidden(true);
        updateHiddenState();
        return;
    }
    else
    {
        ui->label_ModDescription->setHidden(false);
        updateHiddenState();
    }
    ui->label_ModDescription->setToolTip("");
    QString intermediatetext = text.trimmed();
    bool prev(false);
    QChar rem('\n');
    QString finaltext;
    finaltext.reserve(intermediatetext.size());
    foreach(const QChar& c, intermediatetext)
    {
        if(c == rem && prev){
            continue;
        }
        prev = c == rem;
        finaltext += c;
    }
    QString labeltext;
    labeltext.reserve(300);
    if(finaltext.length() > 290)
    {
        ui->label_ModDescription->setOpenExternalLinks(false);
        ui->label_ModDescription->setTextFormat(Qt::TextFormat::RichText);
        desc = text;
        labeltext.append("<html><body>" + finaltext.left(287) + "<a href=\"#mod_desc\">...</a></body></html>");
        QObject::connect(ui->label_ModDescription, &QLabel::linkActivated, this, &MCModInfoFrame::modDescEllipsisHandler);
    }
    else
    {
        ui->label_ModDescription->setTextFormat(Qt::TextFormat::PlainText);
        labeltext.append(finaltext);
    }
    ui->label_ModDescription->setText(labeltext);
}

void MCModInfoFrame::modDescEllipsisHandler(const QString &link)
{
    if(!currentBox)
    {
        currentBox = CustomMessageBox::selectable(this, QString(), desc);
        connect(currentBox, &QMessageBox::finished, this, &MCModInfoFrame::boxClosed);
        currentBox->show();
    }
    else
    {
        currentBox->setText(desc);
    }
}

void MCModInfoFrame::boxClosed(int result)
{
    currentBox = nullptr;
}
