/****************************************************************************
**
** Copyright (C) 2016 The Qt Company Ltd.
** Contact: https://www.qt.io/licensing/
**
** This file is part of Qt Creator.
**
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU
** General Public License version 3 as published by the Free Software
** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
** included in the packaging of this file. Please review the following
** information to ensure the GNU General Public License requirements will
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****************************************************************************/

#include "plugindialog.h"

#include <extensionsystem/plugindetailsview.h>
#include <extensionsystem/pluginerrorview.h>
#include <extensionsystem/pluginspec.h>
#include <utils/theme/theme.h>
#include <utils/theme/theme_p.h>

#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QDialog>
#include <QDialogButtonBox>
#include <QApplication>
#include <QDebug>

using namespace Utils;

PluginDialog::PluginDialog()
    : m_view(new ExtensionSystem::PluginView(this))
{
    QVBoxLayout *vl = new QVBoxLayout(this);
    vl->setContentsMargins(0, 0, 0, 0);
    vl->setSpacing(0);
    vl->addWidget(m_view);

    QHBoxLayout *hl = new QHBoxLayout;
    vl->addLayout(hl);
    hl->setContentsMargins(0, 0, 0, 0);
    hl->setSpacing(6);
    m_detailsButton = new QPushButton(tr("Details"), this);
    m_errorDetailsButton = new QPushButton(tr("Error Details"), this);
    m_detailsButton->setEnabled(false);
    m_errorDetailsButton->setEnabled(false);
    hl->addWidget(m_detailsButton);
    hl->addWidget(m_errorDetailsButton);
    hl->addStretch(5);
    resize(650, 300);
    setWindowTitle(tr("Installed Plugins"));

    connect(m_view, &ExtensionSystem::PluginView::currentPluginChanged,
                this, &PluginDialog::updateButtons);
    connect(m_view, &ExtensionSystem::PluginView::pluginActivated,
                this, &PluginDialog::openDetails);
    connect(m_detailsButton, &QAbstractButton::clicked, this, [this]() { openDetails(); });
    connect(m_errorDetailsButton, &QAbstractButton::clicked, this, &PluginDialog::openErrorDetails);
}

void PluginDialog::updateButtons()
{
    ExtensionSystem::PluginSpec *selectedSpec = m_view->currentPlugin();
    if (selectedSpec) {
        m_detailsButton->setEnabled(true);
        m_errorDetailsButton->setEnabled(selectedSpec->hasError());
    } else {
        m_detailsButton->setEnabled(false);
        m_errorDetailsButton->setEnabled(false);
    }
}


void PluginDialog::openDetails(ExtensionSystem::PluginSpec *spec)
{
    if (!spec) {
        spec = m_view->currentPlugin();
        if (!spec)
            return;
    }
    QDialog dialog(this);
    dialog.setWindowTitle(tr("Plugin Details of %1").arg(spec->name()));
    QVBoxLayout *layout = new QVBoxLayout;
    dialog.setLayout(layout);
    ExtensionSystem::PluginDetailsView *details = new ExtensionSystem::PluginDetailsView(&dialog);
    layout->addWidget(details);
    details->update(spec);
    QDialogButtonBox *buttons = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, &dialog);
    layout->addWidget(buttons);
    connect(buttons, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);
    connect(buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
    dialog.resize(400, 500);
    dialog.exec();
}

void PluginDialog::openErrorDetails()
{
    ExtensionSystem::PluginSpec *spec = m_view->currentPlugin();
    if (!spec)
        return;
    QDialog dialog(this);
    dialog.setWindowTitle(tr("Plugin Errors of %1").arg(spec->name()));
    QVBoxLayout *layout = new QVBoxLayout;
    dialog.setLayout(layout);
    ExtensionSystem::PluginErrorView *errors = new ExtensionSystem::PluginErrorView(&dialog);
    layout->addWidget(errors);
    errors->update(spec);
    QDialogButtonBox *buttons = new QDialogButtonBox(QDialogButtonBox::Close, Qt::Horizontal, &dialog);
    layout->addWidget(buttons);
    connect(buttons, &QDialogButtonBox::accepted, &dialog, &QDialog::accept);
    connect(buttons, &QDialogButtonBox::rejected, &dialog, &QDialog::reject);
    dialog.resize(500, 300);
    dialog.exec();
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);
    ExtensionSystem::PluginManager manager;
    manager.setPluginIID(QLatin1String("plugin"));
    setCreatorTheme(new Theme("default", &app));
    QObject::connect(&app, &QCoreApplication::aboutToQuit,
                     &manager, &ExtensionSystem::PluginManager::shutdown);
    PluginDialog dialog;
    manager.setPluginPaths(QStringList() << "plugins");
    manager.loadPlugins();
    dialog.show();
    app.exec();
    return 0;
}