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#ifndef QBS_DEPENDENCY_SCANNER_H
#define QBS_DEPENDENCY_SCANNER_H

#include <language/forward_decls.h>
#include <language/filetags.h>
#include <language/preparescriptobserver.h>
#include <tools/scripttools.h>

#include <QtCore/qstringlist.h>

#include <unordered_map>

class ScannerPlugin;

namespace qbs {
namespace Internal {

class Artifact;
class FileResourceBase;
class Logger;
class ScriptEngine;

class DependencyScanner
{
public:
    virtual ~DependencyScanner() = default;

    QString id() const;

    virtual QStringList collectSearchPaths(Artifact *artifact) = 0;
    virtual QStringList collectDependencies(Artifact *artifact, FileResourceBase *file,
                                            const char *fileTags) = 0;
    virtual bool recursive() const = 0;
    virtual const void *key() const = 0;
    virtual bool areModulePropertiesCompatible(const PropertyMapConstPtr &m1,
                                               const PropertyMapConstPtr &m2) const = 0;
    virtual bool cacheIsPerFile() const = 0;

private:
    virtual QString createId() const = 0;

    mutable QString m_id;
};

class PluginDependencyScanner : public DependencyScanner
{
public:
    PluginDependencyScanner(ScannerPlugin *plugin);

private:
    QStringList collectModulesPaths(const ResolvedProduct *product);
    QStringList collectSearchPaths(Artifact *artifact) override;
    QStringList collectDependencies(Artifact *artifact, FileResourceBase *file,
                                    const char *fileTags) override;
    bool recursive() const override;
    const void *key() const override;
    QString createId() const override;
    bool areModulePropertiesCompatible(const PropertyMapConstPtr &m1,
                                       const PropertyMapConstPtr &m2) const override;
    bool cacheIsPerFile() const override { return false; }

    ScannerPlugin* m_plugin;
};

class UserDependencyScanner : public DependencyScanner
{
public:
    UserDependencyScanner(ResolvedScannerConstPtr scanner, ScriptEngine *engine);

private:
    QStringList collectSearchPaths(Artifact *artifact) override;
    QStringList collectDependencies(Artifact *artifact, FileResourceBase *file,
                                    const char *fileTags) override;
    bool recursive() const override;
    const void *key() const override;
    QString createId() const override;
    bool areModulePropertiesCompatible(const PropertyMapConstPtr &m1,
                                       const PropertyMapConstPtr &m2) const override;
    bool cacheIsPerFile() const override { return true; }

    QStringList evaluate(Artifact *artifact, const FileResourceBase *fileToScan, const PrivateScriptFunction &script);

    ResolvedScannerConstPtr m_scanner;
    ScriptEngine *m_engine;
    ScopedJsValue m_global;
    ResolvedProduct *m_product;
};

} // namespace Internal
} // namespace qbs

#endif // QBS_DEPENDENCY_SCANNER_H
