#ifndef PACKAGEMANAGEMENT_RESOLVEBUILDORDER_H
#define PACKAGEMANAGEMENT_RESOLVEBUILDORDER_H

#include <c++utilities/application/argumentparser.h>

#include <QObject>
#include <QString>
#include <QList>

#include <memory>

namespace RepoIndex {

class Manager;
class TaskInfo;
class Dependency;
class Package;
class PackageFinder;

class BuildOrderResolver : public QObject
{
    Q_OBJECT
public:
    BuildOrderResolver(Manager &manager, const ApplicationUtilities::StringVector &packages, bool addSourceOnlyDeps = false);
    ~BuildOrderResolver();

    void cli();

    void findDependencies();
    QStringList resultNames();

public slots:
    void printRelevantPackages();
    void printResults();
    void resolve();

signals:
    void ready();
    void resolvingFinished();
    void resolvingFailed(const QString &message);

private slots:
    void addRequestedPackages();

private:
    Package *findPackageForDependency(const Dependency &dependency);
    bool addDependenciesToTask(TaskInfo *task);
    bool addDependenciesToTask(TaskInfo *task, const QList<Dependency> &dependencies);
    void requestDependenciesToBeRequested();

    Manager &m_manager;
    QList<TaskInfo *> m_tasks;
    QList<Dependency> m_dependenciesToBeRequested;
    std::unique_ptr<PackageFinder> m_finder;
    QList<TaskInfo *> m_results;
    bool m_addSourceOnlyDeps;
};

} // namespace PackageManagement

#endif // PACKAGEMANAGEMENT_RESOLVEBUILDORDER_H