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#include "currentprojectfilter.h"
#include "projecttree.h"
#include "project.h"

#include <utils/algorithm.h>

#include <QMutexLocker>
#include <QTimer>

using namespace Core;
using namespace ProjectExplorer;
using namespace ProjectExplorer::Internal;

CurrentProjectFilter::CurrentProjectFilter()
  : BaseFileFilter(), m_project(0)
{
    setId("Files in current project");
    setDisplayName(tr("Files in Current Project"));
    setShortcutString(QString(QLatin1Char('p')));
    setIncludedByDefault(false);

    connect(ProjectTree::instance(), &ProjectTree::currentProjectChanged,
            this, &CurrentProjectFilter::currentProjectChanged);
}

void CurrentProjectFilter::markFilesAsOutOfDate()
{
    setFileIterator(0);
}

void CurrentProjectFilter::prepareSearch(const QString &entry)
{
    Q_UNUSED(entry)
    if (!fileIterator()) {
        QStringList paths;
        if (m_project) {
            paths = m_project->files(Project::AllFiles);
            Utils::sort(paths);
        }
        setFileIterator(new BaseFileFilter::ListIterator(paths));
    }
    BaseFileFilter::prepareSearch(entry);
}

void CurrentProjectFilter::currentProjectChanged()
{
    Project *project = ProjectTree::currentProject();
    if (project == m_project)
        return;
    if (m_project)
        disconnect(m_project, SIGNAL(fileListChanged()), this, SLOT(markFilesAsOutOfDate()));

    if (project)
        connect(project, SIGNAL(fileListChanged()), this, SLOT(markFilesAsOutOfDate()));

    m_project = project;
    markFilesAsOutOfDate();
}

void CurrentProjectFilter::refresh(QFutureInterface<void> &future)
{
    Q_UNUSED(future)
    QTimer::singleShot(0, this, SLOT(markFilesAsOutOfDate()));
}