/**************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2012 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact: http://www.qt-project.org/
**
**
** GNU Lesser General Public License Usage
**
** 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.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt LGPL Exception
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
** Other Usage
**
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**************************************************************************/

#ifndef PROJECT_H
#define PROJECT_H

#include "projectexplorer_export.h"

#include <coreplugin/id.h>

#include <QObject>
#include <QSet>
#include <QFileSystemModel>

namespace Core {
class IDocument;
class Context;
}

namespace ProjectExplorer {

class BuildConfigWidget;
class IProjectManager;
class EditorConfiguration;
class ProjectNode;
class Profile;
class Target;
class ProjectPrivate;

// Documentation inside.
class PROJECTEXPLORER_EXPORT Project
    : public QObject
{
    Q_OBJECT

public:
    // Roles to be implemented by all models that are exported via model()
    enum ModelRoles {
        // Absolute file path
        FilePathRole = QFileSystemModel::FilePathRole
    };

    Project();
    virtual ~Project();

    virtual QString displayName() const = 0;
    virtual Core::Id id() const = 0;
    virtual Core::IDocument *document() const = 0;
    virtual IProjectManager *projectManager() const = 0;

    bool hasActiveBuildSettings() const;

    // EditorConfiguration:
    EditorConfiguration *editorConfiguration() const;

    // Target:
    void addTarget(Target *target);
    bool removeTarget(Target *target);

    QList<Target *> targets() const;
    // Note: activeTarget can be 0 (if no targets are defined).
    Target *activeTarget() const;
    void setActiveTarget(Target *target);
    Target *target(const Core::Id id) const;
    Target *target(Profile *p) const;
    virtual bool supportsProfile(Profile *p) const;

    Target *createTarget(Profile *p);
    Target *restoreTarget(const QVariantMap &data);

    void saveSettings();
    bool restoreSettings();

    virtual QList<BuildConfigWidget*> subConfigWidgets();

    virtual ProjectNode *rootProjectNode() const = 0;

    enum FilesMode { AllFiles, ExcludeGeneratedFiles };
    virtual QStringList files(FilesMode fileMode) const = 0;
    // TODO: generalize to find source(s) of generated files?
    virtual QString generatedUiHeader(const QString &formFile) const;

    static QString makeUnique(const QString &preferedName, const QStringList &usedNames);

    virtual QVariantMap toMap() const;

    // The directory that holds the project file. This includes the absolute path.
    QString projectDirectory() const;
    static QString projectDirectory(const QString &proFile);

    virtual Core::Context projectContext() const;
    virtual Core::Context projectLanguage() const;

    QVariant namedSettings(const QString &name) const;
    void setNamedSettings(const QString &name, QVariant &value);

    virtual bool needsConfiguration() const;
    virtual void configureAsExampleProject(const QStringList &platforms);

public slots:
    void triggerBuildSystemEvaluation();

protected slots:
    void buildSystemEvaluationFinished(bool success);

signals:
    void displayNameChanged();
    void fileListChanged();

    // Note: activeTarget can be 0 (if no targets are defined).
    void activeTargetChanged(ProjectExplorer::Target *target);

    void aboutToRemoveTarget(ProjectExplorer::Target *target);
    void removedTarget(ProjectExplorer::Target *target);
    void addedTarget(ProjectExplorer::Target *target);

    void environmentChanged();
    void buildConfigurationEnabledChanged();
    // The build directory of the current target/build configuration was successfully
    // initialized (or configured).
    void buildDirectoryInitialized();
    void buildDirectoryChanged();
    void buildSystemEvaluated();

    void settingsLoaded();
    void aboutToSaveSettings();

protected:
    virtual bool fromMap(const QVariantMap &map);

    virtual void setProjectContext(Core::Context context);
    virtual void setProjectLanguage(Core::Context language);

    // Implement this to (re-)evaluate the build system of the project.
    //
    // This method is triggered by one of its active children (active*Configuration
    // of the activeTarget) whenever some settings that has influence on the build
    // system parsing is changed.
    virtual void evaluateBuildSystem();

private slots:
    void changeEnvironment();
    void changeBuildConfigurationEnabled();
    void onBuildDirectoryInitialized();
    void onBuildDirectoryChanged();

private:
    ProjectPrivate *d;
};

} // namespace ProjectExplorer

Q_DECLARE_METATYPE(ProjectExplorer::Project *)

#endif // PROJECT_H