//
//  RMDatabaseCache.h
//
// Copyright (c) 2008-2009, Route-Me Contributors
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright notice, this
//   list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright notice,
//   this list of conditions and the following disclaimer in the documentation
//   and/or other materials provided with the distribution.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
// LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
// CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
// SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
// CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
// ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
// POSSIBILITY OF SUCH DAMAGE.

#import <UIKit/UIKit.h>
#import "RMTileCache.h"

@class RMTileCacheDAO;
@class FMDatabase;

@interface RMDatabaseCache : NSObject <RMTileCache> {
    // Database
	FMDatabase *db;
	NSString *databasePath;

    NSUInteger tileCount;
    NSOperationQueue *writeQueue;
    NSRecursiveLock *writeQueueLock;

    // Cache
	RMCachePurgeStrategy purgeStrategy;
	NSUInteger capacity;
	NSUInteger minimalPurge;
}

@property (nonatomic, retain) NSString *databasePath;

+ (NSString *)dbPathUsingCacheDir:(BOOL)useCacheDir;
- (id)initWithDatabase:(NSString *)path;
- (id)initUsingCacheDir:(BOOL)useCacheDir;

- (void)setPurgeStrategy:(RMCachePurgeStrategy)theStrategy;
- (void)setCapacity:(NSUInteger)theCapacity;
- (void)setMinimalPurge:(NSUInteger)thePurgeMinimum;

@end