#ifndef __REMOTE_STORE_H
#define __REMOTE_STORE_H

#include <string>

#include "store-api.hh"


namespace nix {


class Pipe;
class Pid;
struct FdSink;
struct FdSource;


class RemoteStore : public StoreAPI
{
public:

    RemoteStore();

    ~RemoteStore();
    
    /* Implementations of abstract store API methods. */
    
    bool isValidPath(const Path & path);

    Substitutes querySubstitutes(const Path & path);

    bool hasSubstitutes(const Path & path);
    
    Hash queryPathHash(const Path & path);

    void queryReferences(const Path & path, PathSet & references);

    void queryReferrers(const Path & path, PathSet & referrers);

    Path addToStore(const Path & srcPath, bool fixed = false,
        bool recursive = false, string hashAlgo = "");

    Path addTextToStore(const string & suffix, const string & s,
        const PathSet & references);

    void buildDerivations(const PathSet & drvPaths);

    void ensurePath(const Path & path);

    void addTempRoot(const Path & path);

    void addIndirectRoot(const Path & path);
    
    void syncWithGC();
    
    Roots findRoots();
    
private:
    AutoCloseFD fdSocket;
    FdSink to;
    FdSource from;
    Pid child;

    void processStderr();

    void forkSlave();
    
    void connectToDaemon();
};


}


#endif /* !__REMOTE_STORE_H */