//
//  AuthenticatedUserOperation.m
//  Tweeb
//
//  Created by john on 12/28/09.
//  Copyright 2009 Mobomo LLC. All rights reserved.
//

#import "AuthenticatedUserOperation.h"

#import "User.h"


@implementation AuthenticatedUserOperation


- (id)initWithUser:(User *)user {
	if ((self = [super initWithUser:user])) {
		responseData = [[NSMutableData alloc] initWithCapacity:2000];
	}
	return self;
}


- (void)dealloc {
	NSLog(@"deallocating auth operation");
	[responseData release];
	[_connection cancel];
	[_connection release];
	[super dealloc];
}


- (BOOL)isConcurrent {
	return YES;
}


- (BOOL)isExecuting {
	return _executing;
}


- (BOOL)isFinished {
	return _finished;
}


- (void)start {
	NSURLRequest *request = [NSURLRequest requestWithURL:[self userOperationURL]
                                             cachePolicy:NSURLCacheStorageNotAllowed
                                         timeoutInterval:USER_OPERATION_TIMEOUT];

	[self willChangeValueForKey:@"executing"];
	_executing = YES;
	[self didChangeValueForKey:@"executing"];
	_connection = [[NSURLConnection alloc] initWithRequest:request
												  delegate:self
										  startImmediately:YES];
	NSLog(@"Connection: %@", _connection);
}


- (void)doStop {
	[self willChangeValueForKey:@"executing"];
	[self willChangeValueForKey:@"finished"];
	_finished = YES;
	_executing = NO;
	[self didChangeValueForKey:@"executing"];
	[self willChangeValueForKey:@"finished"];
}


- (void)connection:(NSURLConnection *)connection didReceiveData:(NSData *)data {
	if ([self isCancelled]) {
		[connection cancel];
		[self doStop];
		return;
	}

	[responseData appendData:data];
}


- (BOOL)connectionShouldUseCredentialStorage:(NSURLConnection *)connection {
	return NO;
}


- (void)connectionDidFinishLoading:(NSURLConnection *)connection {
	NSLog(@"auth op finished loading");

	[APP_DELEGATE popNetworkActivity];

	if ([self isCancelled]) {
		[self doStop];
		return;
	}

	[self handleResponseDataInternal:responseData];
	[self save];
}


- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error {
	NSLog(@"Connection error: %@, %@", error, [error userInfo]);
	[self doStop];
}


- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response {
	NSLog(@"got response: %@", response);
}


- (void)connection:(NSURLConnection *)connection didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge {
	if ([self isCancelled]) {
		[connection cancel];
		[self doStop];
		return;
	}

    if ([challenge previousFailureCount] == 0) {
        NSURLCredential *newCredential;
        newCredential=[NSURLCredential credentialWithUser:[self.user screenName]
                                                 password:[self.user password]
                                              persistence:NSURLCredentialPersistenceNone];
        [[challenge sender] useCredential:newCredential
               forAuthenticationChallenge:challenge];
    } else {
        [[challenge sender] cancelAuthenticationChallenge:challenge];
    }
}


@end