/**
 * Orthanc - A Lightweight, RESTful DICOM Store
 * Copyright (C) 2012-2015 Sebastien Jodogne, Medical Physics
 * Department, University Hospital of Liege, Belgium
 *
 * This program is free software: you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation, either version 3 of the
 * License, or (at your option) any later version.
 *
 * In addition, as a special exception, the copyright holders of this
 * program give permission to link the code of its release with the
 * OpenSSL project's "OpenSSL" library (or with modified versions of it
 * that use the same license as the "OpenSSL" library), and distribute
 * the linked executables. You must obey the GNU General Public License
 * in all respects for all of the code used other than "OpenSSL". If you
 * modify file(s) with this exception, you may extend this exception to
 * your version of the file(s), but you are not obligated to do so. If
 * you do not wish to do so, delete this exception statement from your
 * version. If you delete this exception statement from all source files
 * in the program, then also delete it here.
 * 
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 **/


#pragma once

#include "../Core/DicomFormat/DicomMap.h"
#include "../Core/SQLite/ITransaction.h"
#include "../Core/FileStorage/IStorageArea.h"
#include "../Core/FileStorage/FileInfo.h"
#include "IDatabaseListener.h"
#include "ExportedResource.h"

#include <list>
#include <boost/noncopyable.hpp>

namespace Orthanc
{
  class IDatabaseWrapper : public boost::noncopyable
  {
  public:
    virtual ~IDatabaseWrapper()
    {
    }

    virtual void Open() = 0;

    virtual void Close() = 0;

    virtual void AddAttachment(int64_t id,
                               const FileInfo& attachment) = 0;

    virtual void AttachChild(int64_t parent,
                             int64_t child) = 0;

    virtual void ClearChanges() = 0;

    virtual void ClearExportedResources() = 0;

    virtual int64_t CreateResource(const std::string& publicId,
                                   ResourceType type) = 0;

    virtual void DeleteAttachment(int64_t id,
                                  FileContentType attachment) = 0;

    virtual void DeleteMetadata(int64_t id,
                                MetadataType type) = 0;

    virtual void DeleteResource(int64_t id) = 0;

    virtual void FlushToDisk() = 0;

    virtual bool HasFlushToDisk() const = 0;

    virtual void GetAllMetadata(std::map<MetadataType, std::string>& target,
                                int64_t id) = 0;

    virtual void GetAllPublicIds(std::list<std::string>& target,
                                 ResourceType resourceType) = 0;

    virtual void GetAllPublicIds(std::list<std::string>& target,
                                 ResourceType resourceType,
                                 size_t since,
                                 size_t limit) = 0;

    virtual void GetChanges(std::list<ServerIndexChange>& target /*out*/,
                            bool& done /*out*/,
                            int64_t since,
                            uint32_t maxResults) = 0;

    virtual void GetChildrenInternalId(std::list<int64_t>& target,
                                       int64_t id) = 0;

    virtual void GetChildrenPublicId(std::list<std::string>& target,
                                     int64_t id) = 0;

    virtual void GetExportedResources(std::list<ExportedResource>& target /*out*/,
                                      bool& done /*out*/,
                                      int64_t since,
                                      uint32_t maxResults) = 0;

    virtual void GetLastChange(std::list<ServerIndexChange>& target /*out*/) = 0;

    virtual void GetLastExportedResource(std::list<ExportedResource>& target /*out*/) = 0;

    virtual void GetMainDicomTags(DicomMap& map,
                                  int64_t id) = 0;

    virtual std::string GetPublicId(int64_t resourceId) = 0;

    virtual uint64_t GetResourceCount(ResourceType resourceType) = 0;

    virtual ResourceType GetResourceType(int64_t resourceId) = 0;

    virtual uint64_t GetTotalCompressedSize() = 0;
    
    virtual uint64_t GetTotalUncompressedSize() = 0;

    virtual bool IsExistingResource(int64_t internalId) = 0;

    virtual bool IsProtectedPatient(int64_t internalId) = 0;

    virtual void ListAvailableMetadata(std::list<MetadataType>& target,
                                       int64_t id) = 0;

    virtual void ListAvailableAttachments(std::list<FileContentType>& target,
                                          int64_t id) = 0;

    virtual void LogChange(int64_t internalId,
                           const ServerIndexChange& change) = 0;

    virtual void LogExportedResource(const ExportedResource& resource) = 0;
    
    virtual bool LookupAttachment(FileInfo& attachment,
                                  int64_t id,
                                  FileContentType contentType) = 0;

    virtual bool LookupGlobalProperty(std::string& target,
                                      GlobalProperty property) = 0;

    virtual void LookupIdentifierExact(std::list<int64_t>& target,
                                       ResourceType level,
                                       const DicomTag& tag,
                                       const std::string& value) = 0;

    /**
     * Primitive for wildcard matching, as defined in DICOM:
     * http://dicom.nema.org/dicom/2013/output/chtml/part04/sect_C.2.html#sect_C.2.2.2.4
     * 
     * "Any occurrence of an "*" or a "?", then "*" shall match any
     * sequence of characters (including a zero length value) and "?"
     * shall match any single character. This matching is case
     * sensitive, except for Attributes with an PN Value
     * Representation (e.g., Patient Name (0010,0010))."
     * 
     * Pay attention to the fact that "*" (resp. "?") generally
     * corresponds to "%" (resp. "_") in primitive LIKE of SQL. The
     * values "%", "_", "\" should in the user request should
     * respectively be escaped as "\%", "\_" and "\\".
     * 
     * This matching must be case sensitive: The special case of PN VR
     * is taken into consideration by normalizing the query string in
     * method "ServerIndex::LookupIdentifierWildcard()".
     **/
    virtual void LookupIdentifierWildcard(std::list<int64_t>& target,
                                          const DicomTag& tag,
                                          const std::string& value) = 0;

    virtual bool LookupMetadata(std::string& target,
                                int64_t id,
                                MetadataType type) = 0;

    virtual bool LookupParent(int64_t& parentId,
                              int64_t resourceId) = 0;

    virtual bool LookupResource(int64_t& id,
                                ResourceType& type,
                                const std::string& publicId) = 0;

    virtual bool SelectPatientToRecycle(int64_t& internalId) = 0;

    virtual bool SelectPatientToRecycle(int64_t& internalId,
                                        int64_t patientIdToAvoid) = 0;

    virtual void SetGlobalProperty(GlobalProperty property,
                                   const std::string& value) = 0;

    virtual void ClearMainDicomTags(int64_t id) = 0;

    virtual void SetMainDicomTag(int64_t id,
                                 const DicomTag& tag,
                                 const std::string& value) = 0;

    virtual void SetIdentifierTag(int64_t id,
                                  const DicomTag& tag,
                                  const std::string& value) = 0;

    virtual void SetMetadata(int64_t id,
                             MetadataType type,
                             const std::string& value) = 0;

    virtual void SetProtectedPatient(int64_t internalId, 
                                     bool isProtected) = 0;

    virtual SQLite::ITransaction* StartTransaction() = 0;

    virtual void SetListener(IDatabaseListener& listener) = 0;

    virtual unsigned int GetDatabaseVersion() = 0;

    virtual void Upgrade(unsigned int targetVersion,
                         IStorageArea& storageArea) = 0;
  };
}