/Users/sjg/iPhone/WhirlyGlobe/WhirlyGlobeSrc/WhirlyGlobeLib/include/VectorDatabase.h

/*
 *  VectorDatabase.h
 *  WhirlyGlobeLib
 *
 *  Created by Steve Gifford on 5/12/11.
 *  Copyright 2011 mousebird consulting
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *  http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

#import <math.h>
#import <set>
#import <map>
#import "VectorData.h"
#import "sqlite3.h"

namespace WhirlyGlobe
{
    
typedef std::set<unsigned int> UIntSet;

class VectorDatabase
{
public:
    VectorDatabase(NSString *bundleDir,NSString *cacheDir,NSString *baseName,VectorReader *reader,const std::set<std::string> *indices,bool cache=false,bool autoload=false);
    ~VectorDatabase();

    void setAutoload(bool autoload);
    
    void setMemCache(bool memCache);
    
    void process();
    
    unsigned int numVectors();
    
    GeoMbr getMbr(unsigned int);
    
    VectorShapeRef getVector(unsigned int,bool withAttributes=true);
    
    void getVectorsWithinMbr(const GeoMbr &mbr,UIntSet &vecIds);
    
    void getMatchingVectors(NSString *query,UIntSet &vecIds);
    void getMatchingVectors(NSString *query,ShapeSet &shapes);

    void findArealsForPoint(const GeoCoord &coord,ShapeSet &shapes);
    
protected:
    bool buildCaches(NSString *mbrCache,NSString *sqlDb);
    bool readCaches(NSString *mbrCache,NSString *sqlDb);
    
    VectorReader *reader;
    
    std::vector<GeoMbr> mbrs;
    
    bool vecCacheOn;
    std::map<unsigned int,VectorShapeRef> vecCache;
    
    bool autoloadOn;
    int autoloadWhere;
    
    sqlite3 *db;
};

}