//
//  DBRestClient.h
//  DropboxSDK
//
//  Created by Brian Smith on 4/9/10.
//  Copyright 2010 Dropbox, Inc. All rights reserved.
//


#import "DBSession.h"

@protocol DBRestClientDelegate;
@class DBAccountInfo;
@class DBMetadata;

extern NSString* kDBProtocolHTTP;
extern NSString* kDBProtocolHTTPS;

@interface DBRestClient : NSObject {
    DBSession* session;
    NSString* root;
    NSMutableSet* requests;
    /* Map from path to the load request. Needs to be expanded to a general framework for cancelling
       requests. */
    NSMutableDictionary* loadRequests; 
    id<DBRestClientDelegate> delegate;
}

- (id)initWithSession:(DBSession*)session;

/* New developers should not use this method, and instead just use initWithSession: */
- (id)initWithSession:(DBSession *)session root:(NSString*)root;

/* Logs in as the user with the given email/password and stores the OAuth tokens on the session 
   object */
- (void)loginWithEmail:(NSString*)email password:(NSString*)password;

/* Loads metadata for the object at the given root/path and returns the result to the delegate as a 
   dictionary */
- (void)loadMetadata:(NSString*)path withHash:(NSString*)hash;
- (void)loadMetadata:(NSString*)path;

/* Loads the file contents at the given root/path and stores the result into destinationPath */
- (void)loadFile:(NSString *)path intoPath:(NSString *)destinationPath;
- (void)cancelFileLoad:(NSString*)path;

- (void)loadThumbnail:(NSString *)path ofSize:(NSString *)size intoPath:(NSString *)destinationPath;

/* Uploads a file that will be named filename to the given root/path on the server. It will upload
   the contents of the file at sourcePath */
- (void)uploadFile:(NSString*)filename toPath:(NSString*)path fromPath:(NSString *)sourcePath;

/* Creates a folder at the given root/path */
- (void)createFolder:(NSString*)path;

- (void)deletePath:(NSString*)path;

- (void)copyFrom:(NSString*)from_path toPath:(NSString *)to_path;

- (void)moveFrom:(NSString*)from_path toPath:(NSString *)to_path;

- (void)loadAccountInfo;

- (void)createAccount:(NSString *)email password:(NSString *)password firstName:(NSString *)firstName 
        lastName:(NSString *)lastName;

- (void)setDelegate:(id)theDelegate;
- (id<DBRestClientDelegate>)delegate;
@end




/* The delegate provides allows the user to get the result of the calls made on the DBRestClient.
   Right now, the error parameter of failed calls may be nil and [error localizedDescription] does
   not contain an error message appropriate to show to the user. */
@protocol DBRestClientDelegate <NSObject>

@optional

- (void)restClientDidLogin:(DBRestClient*)client;
- (void)restClient:(DBRestClient*)client loginFailedWithError:(NSError*)error;

- (void)restClient:(DBRestClient*)client loadedMetadata:(DBMetadata*)metadata;
- (void)restClient:(DBRestClient*)client metadataUnchangedAtPath:(NSString*)path;
- (void)restClient:(DBRestClient*)client loadMetadataFailedWithError:(NSError*)error; 
// [error userInfo] contains the root and path of the call that failed

- (void)restClient:(DBRestClient*)client loadedAccountInfo:(DBAccountInfo*)info;
- (void)restClient:(DBRestClient*)client loadAccountInfoFailedWithError:(NSError*)error; 

- (void)restClient:(DBRestClient*)client loadedFile:(NSString*)destPath;
// Implement the following callback instead of the previous if you care about the value of the
// Content-Type HTTP header. Only one will be called per successful response.
- (void)restClient:(DBRestClient*)client loadedFile:(NSString*)destPath contentType:(NSString*)contentType;
- (void)restClient:(DBRestClient*)client loadProgress:(float)progress forFile:(NSString*)destPath;
- (void)restClient:(DBRestClient*)client loadFileFailedWithError:(NSError*)error;
// [error userInfo] contains the destinationPath

- (void)restClient:(DBRestClient*)client loadedThumbnail:(NSString*)destPath;
- (void)restClient:(DBRestClient*)client loadThumbnailFailedWithError:(NSError*)error;

- (void)restClient:(DBRestClient*)client uploadedFile:(NSString*)destPath from:(NSString*)srcPath;
- (void)restClient:(DBRestClient*)client uploadProgress:(float)progress 
forFile:(NSString*)destPath from:(NSString*)srcPath;
- (void)restClient:(DBRestClient*)client uploadFileFailedWithError:(NSError*)error;
// [error userInfo] contains the sourcePath

// Deprecated upload callbacks
- (void)restClient:(DBRestClient*)client uploadedFile:(NSString*)srcPath;
- (void)restClient:(DBRestClient*)client uploadProgress:(float)progress forFile:(NSString*)srcPath;

- (void)restClient:(DBRestClient*)client createdFolder:(DBMetadata*)folder;
// Folder is the metadata for the newly created folder
- (void)restClient:(DBRestClient*)client createFolderFailedWithError:(NSError*)error;
// [error userInfo] contains the root and path

- (void)restClient:(DBRestClient*)client deletedPath:(NSString *)path;
// Folder is the metadata for the newly created folder
- (void)restClient:(DBRestClient*)client deletePathFailedWithError:(NSError*)error;
// [error userInfo] contains the root and path

- (void)restClient:(DBRestClient*)client copiedPath:(NSString *)from_path toPath:(NSString *)to_path;
// Folder is the metadata for the newly created folder
- (void)restClient:(DBRestClient*)client copyPathFailedWithError:(NSError*)error;
// [error userInfo] contains the root and path
//
- (void)restClient:(DBRestClient*)client movedPath:(NSString *)from_path toPath:(NSString *)to_path;
// Folder is the metadata for the newly created folder
- (void)restClient:(DBRestClient*)client movePathFailedWithError:(NSError*)error;
// [error userInfo] contains the root and path

- (void)restClientCreatedAccount:(DBRestClient*)client;
- (void)restClient:(DBRestClient*)client createAccountFailedWithError:(NSError *)error;

@end