#include "newfolderdialog.h"

#include <QLineEdit>

#include <notebook/notebook.h>
#include <notebook/node.h>
#include <utils/pathutils.h>
#include <core/exception.h>

#include "../widgetsfactory.h"
#include "nodeinfowidget.h"

using namespace vnotex;

NewFolderDialog::NewFolderDialog(Node *p_node, QWidget *p_parent)
    : ScrollDialog(p_parent)
{
    Q_ASSERT(p_node && p_node->isLoaded());
    setupUI(p_node);

    m_infoWidget->getNameLineEdit()->setFocus();
}

void NewFolderDialog::setupUI(const Node *p_node)
{
    setupNodeInfoWidget(p_node, this);
    setCentralWidget(m_infoWidget);

    setDialogButtonBox(QDialogButtonBox::Ok | QDialogButtonBox::Cancel);

    setWindowTitle(tr("New Folder"));
}

void NewFolderDialog::setupNodeInfoWidget(const Node *p_node, QWidget *p_parent)
{
    m_infoWidget = new NodeInfoWidget(p_node, Node::Flag::Container, p_parent);
}

bool NewFolderDialog::validateInputs()
{
    bool valid = true;
    QString msg;

    valid = valid && validateNameInput(msg);
    setInformationText(msg, valid ? ScrollDialog::InformationLevel::Info
                                  : ScrollDialog::InformationLevel::Error);
    return valid;
}

bool NewFolderDialog::validateNameInput(QString &p_msg)
{
    p_msg.clear();

    auto name = m_infoWidget->getName();
    if (name.isEmpty() || !PathUtils::isLegalFileName(name)) {
        p_msg = tr("Please specify a name for the folder.");
        return false;
    }

    if (!m_infoWidget->getParentNode()->isLegalNameForNewChild(name)) {
        p_msg = tr("Name conflicts with existing or built-in folder.");
        return false;
    }

    return true;
}

void NewFolderDialog::acceptedButtonClicked()
{
    if (validateInputs() && newFolder()) {
        accept();
    }
}

bool NewFolderDialog::newFolder()
{
    m_newNode.clear();

    Notebook *notebook = const_cast<Notebook *>(m_infoWidget->getNotebook());
    Node *parentNode = const_cast<Node *>(m_infoWidget->getParentNode());
    try {
        m_newNode = notebook->newNode(parentNode, Node::Flag::Container, m_infoWidget->getName());
    } catch (Exception &p_e) {
        QString msg = tr("Failed to create folder under (%1) in (%2) (%3).").arg(parentNode->getName(),
                                                                                 notebook->getName(),
                                                                                 p_e.what());
        qCritical() << msg;
        setInformationText(msg, ScrollDialog::InformationLevel::Error);
        return false;
    }

    emit notebook->nodeUpdated(parentNode);
    return true;
}

const QSharedPointer<Node> &NewFolderDialog::getNewNode() const
{
    return m_newNode;
}