#import <Foundation/Foundation.h>

typedef void (^DownloaderCallback)(NSNumber*, NSNumber*);

typedef void (^ErrorCallback)(NSError*);

typedef void (^BeginCallback)(NSNumber*, NSNumber*, NSDictionary*);

typedef void (^ProgressCallback)(NSNumber*, NSNumber*);

@interface DownloadParams : NSObject

@property (copy) NSString* fromUrl;

@property (copy) NSString* toFile;

@property (copy) NSString* method;

@property (copy) NSString* postString;

@property (copy) DownloaderCallback callback; // Download has finished (data written)

@property (copy) ErrorCallback errorCallback; // Something went wrong

@property (copy) BeginCallback beginCallback; // Download has started (headers received)

@property (copy) ProgressCallback progressCallback; // Download is progressing

@end

@interface Downloader : NSObject <NSURLConnectionDelegate>

- (void)downloadFile:(DownloadParams*)params;

- (void)stopDownload;

@end