//
//  RMWebTileImage.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 <Foundation/Foundation.h>
#import "RMTileImage.h"

#import "RMURLConnectionOperation.h"

static const NSUInteger kWebTileRetries = 30;
static const NSUInteger kMaxConcurrentConnections = 5;

extern NSString *RMWebTileImageErrorDomain;

extern NSString *RMWebTileImageHTTPResponseCodeKey;
enum {
    RMWebTileImageErrorUnexpectedHTTPResponse,
    RMWebTileImageErrorZeroLengthResponse,
    RMWebTileImageErrorNotFoundResponse
};

extern NSString *RMWebTileImageNotificationErrorKey;



/// RMTileImage subclass: a tile image loaded from a URL.
@interface RMWebTileImage : RMTileImage {
    NSUInteger retries;
    NSError *lastError;

	NSURL *url;
    RMURLConnectionOperation *connectionOp;

	NSMutableData *data;
}

- (id)initWithTile:(RMTile)tile FromURL:(NSString*)url;

@end