/*
 * Copyright (c) 2018 Sune Vuorela <sune@vuorela.dk>
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */
#include "mainpane.h"
#include <QHBoxLayout>
#include <memory>
#include <QTextBrowser>
#include <QPrintDialog>
#include <QPrintPreviewDialog>
#include <QPrinter>
#include <QScrollBar>
#include "recipedocument.h"

MainPane::MainPane(QWidget* parent) : PaneBase(parent)
{
    m_document = std::make_unique<QTextDocument>();
    auto layout = std::make_unique<QHBoxLayout>();
    auto textView = std::make_unique<QTextBrowser>();
    textView->setReadOnly(true);
    textView->setDocument(m_document.get());
    textView->setOpenLinks(false);
    connect(textView.get(), QOverload<const QUrl&>::of(&QTextBrowser::highlighted), this, [this](const QUrl &url) {
        Q_EMIT notifySimple(url.toString());
    });
    connect(textView.get(), &QTextBrowser::anchorClicked, this, [this](const QUrl& url){
        if (url.isRelative()) {
            openPath(m_rootPath + url.toString());
        }
    });

    m_textView = textView.get();
    layout->addWidget(textView.release());
    setLayout(layout.release());
    openPath(QString());
}

void MainPane::setRootPath(const QString& rootPath) {
    m_rootPath = rootPath;
}

void MainPane::openPath(const QString& path)
{
    m_document->setBaseUrl(QUrl::fromLocalFile(path));
    m_document->setMarkdown(RecipeDocument::openPath(path));

    QTextCursor cursor = m_textView->textCursor();
    cursor.setPosition(0);
    m_textView->setTextCursor(cursor);
}

void MainPane::print()
{
    QPrintDialog d;
    if (d.exec() == QDialog::Accepted)
    {
        m_document->print(d.printer());
    }
}

void MainPane::printPreview()
{
    QPrintPreviewDialog d;
    connect(&d, &QPrintPreviewDialog::paintRequested, this, [this](QPrinter* printer) {
        m_document->print(printer);
    });
    d.exec();
}

MainPane::~MainPane()
{
    // for smart pointers
}
