/****************************************************************************
**
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of Qt Creator.
**
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** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
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** use the contact form at http://qt.digia.com/contact-us.
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** GNU Lesser General Public License Usage
** Alternatively, this file may be used under the terms of the GNU Lesser
** General Public License version 2.1 as published by the Free Software
** Foundation and appearing in the file LICENSE.LGPL included in the
** packaging of this file.  Please review the following information to
** ensure the GNU Lesser General Public License version 2.1 requirements
** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
**
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** rights.  These rights are described in the Digia Qt LGPL Exception
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****************************************************************************/

#include "qbsprojectmanager.h"

#include "defaultpropertyprovider.h"
#include "qbslogsink.h"
#include "qbsproject.h"
#include "qbsprojectmanagerconstants.h"
#include "qbsprojectmanagerplugin.h"

#include <extensionsystem/pluginmanager.h>
#include <projectexplorer/kit.h>
#include <projectexplorer/kitmanager.h>
#include <projectexplorer/projectexplorer.h>
#include <qmljstools/qmljstoolsconstants.h>

#include <QVariantMap>

#include <qbs.h>

// qbs settings structure:
const char PROFILE_LIST[] = "preferences.qtcreator.kit.";
const char PROFILES_PREFIX[] = "profiles.";

const QChar sep = QChar(QLatin1Char('.'));

namespace QbsProjectManager {

qbs::Settings *QbsManager::m_settings = 0;
qbs::Preferences *QbsManager::m_preferences = 0;

QbsManager::QbsManager(Internal::QbsProjectManagerPlugin *plugin) :
    m_plugin(plugin),
    m_defaultPropertyProvider(new DefaultPropertyProvider)
{
    if (!m_settings)
        m_settings = new qbs::Settings(QLatin1String("QtProject"), QLatin1String("qbs"));
    if (!m_preferences)
        m_preferences = new qbs::Preferences(m_settings);

    setObjectName(QLatin1String("QbsProjectManager"));
    connect(ProjectExplorer::KitManager::instance(), SIGNAL(kitsChanged()), this, SLOT(pushKitsToQbs()));

    m_logSink = new Internal::QbsLogSink(this);
    int level = qbs::LoggerWarning;
    const QString levelEnv = QString::fromLocal8Bit(qgetenv("QBS_LOG_LEVEL"));
    if (!levelEnv.isEmpty()) {
        bool ok = false;
        int tmp = levelEnv.toInt(&ok);
        if (ok) {
            if (tmp < static_cast<int>(qbs::LoggerMinLevel))
                tmp = static_cast<int>(qbs::LoggerMinLevel);
            if (tmp > static_cast<int>(qbs::LoggerMaxLevel))
                tmp = static_cast<int>(qbs::LoggerMaxLevel);
            level = tmp;
        }
    }
    m_logSink->setLogLevel(static_cast<qbs::LoggerLevel>(level));
}

QbsManager::~QbsManager()
{
    delete m_defaultPropertyProvider;
    delete m_settings;
}

QString QbsManager::mimeType() const
{
    return QLatin1String(QmlJSTools::Constants::QBS_MIMETYPE);
}

ProjectExplorer::Project *QbsManager::openProject(const QString &fileName, QString *errorString)
{
    if (!QFileInfo(fileName).isFile()) {
        if (errorString)
            *errorString = tr("Failed opening project '%1': Project is not a file")
                .arg(fileName);
        return 0;
    }

    return new Internal::QbsProject(this, fileName);
}

QString QbsManager::profileForKit(const ProjectExplorer::Kit *k) const
{
    if (!k)
        return QString();
    return m_settings->value(QString::fromLatin1(PROFILE_LIST) + k->id().toString()).toString();
}

void QbsManager::setProfileForKit(const QString &name, const ProjectExplorer::Kit *k)
{
    m_settings->setValue(QString::fromLatin1(PROFILE_LIST) + k->id().toString(), name);
}

QStringList QbsManager::profileNames() const
{
    QStringList keyList = m_settings->allKeys();

    QStringList result;
    foreach (const QString &key, keyList) {
        if (!key.startsWith(QString::fromLatin1(PROFILES_PREFIX)))
            continue;
        QString profile = key;
        profile.remove(0, QString::fromLatin1(PROFILES_PREFIX).count());
        profile = profile.left(profile.indexOf(sep));
        if (!result.contains(profile))
            result << profile;
    }
    return result;
}

qbs::Settings *QbsManager::settings()
{
    return m_settings;
}

qbs::Preferences *QbsManager::preferences()
{
    return m_preferences;
}

void QbsManager::addProfile(const QString &name, const QVariantMap &data)
{
    const QString base = QLatin1String(PROFILES_PREFIX) + name + sep;
    const QVariantMap::ConstIterator cend = data.constEnd();
    for (QVariantMap::ConstIterator it = data.constBegin(); it != cend; ++it)
        m_settings->setValue(base + it.key(), it.value());
}

void QbsManager::removeCreatorProfiles()
{
    QStringList keyList = m_settings->allKeys();
    QStringList profilesToDelete;

    // Find profiles to remove:
    foreach (const QString &key, keyList) {
        if (!key.startsWith(QLatin1String(PROFILE_LIST)))
            continue;
        profilesToDelete.append(m_settings->value(key).toString());
        m_settings->remove(key);
    }
    // Remove profiles:
    foreach (const QString &key, keyList) {
        if (!key.startsWith(QLatin1String(PROFILES_PREFIX)))
            continue;
        const QString kitname = key.mid(QString::fromLatin1(PROFILES_PREFIX).size());
        foreach (const QString &i, profilesToDelete) {
            if (kitname.startsWith(i + sep))
                m_settings->remove(key);
        }
    }
}

void QbsManager::addProfileFromKit(const ProjectExplorer::Kit *k)
{
    QStringList usedProfileNames = profileNames();
    const QString name = ProjectExplorer::Project::makeUnique(
                QString::fromLatin1("qtc_") + k->fileSystemFriendlyName(), usedProfileNames);
    setProfileForKit(name, k);

    // set up properties:
    QVariantMap data = m_defaultPropertyProvider->properties(k, QVariantMap());
    QList<PropertyProvider *> providerList = ExtensionSystem::PluginManager::getObjects<PropertyProvider>();
    foreach (PropertyProvider *provider, providerList) {
        if (provider->canHandle(k))
            data = provider->properties(k, data);
    }

    addProfile(name, data);
}

void QbsManager::pushKitsToQbs()
{
    // Get all keys
    removeCreatorProfiles();

    // add definitions from our kits
    foreach (const ProjectExplorer::Kit *k, ProjectExplorer::KitManager::instance()->kits())
        addProfileFromKit(k);
}

} // namespace QbsProjectManager