/*
  Licensed to the Apache Software Foundation (ASF) under one
  or more contributor license agreements.  See the NOTICE file
  distributed with this work for additional information
  regarding copyright ownership.  The ASF licenses this file
  to you under the Apache License, Version 2.0 (the
  "License"); you may not use this file except in compliance
  with the License.  You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

  Unless required by applicable law or agreed to in writing,
  software distributed under the License is distributed on an
  "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  KIND, either express or implied.  See the License for the
  specific language governing permissions and limitations
  under the License.
 */

#import "CMISHttpUploadRequest.h"

@interface CMISHttpUploadRequest ()

@property (nonatomic, assign) unsigned long long bytesUploaded;
@property (nonatomic, copy) void (^progressBlock)(unsigned long long bytesUploaded, unsigned long long bytesTotal);

@end


@implementation CMISHttpUploadRequest

@synthesize inputStream = _inputStream;
@synthesize progressBlock = _progressBlock;
@synthesize bytesExpected = _bytesExpected;
@synthesize bytesUploaded = _bytesUploaded;

+ (CMISHttpUploadRequest*)startRequest:(NSMutableURLRequest *)urlRequest
                        withHttpMethod:(CMISHttpRequestMethod)httpRequestMethod
                           inputStream:(NSInputStream*)inputStream
                               headers:(NSDictionary*)additionalHeaders
                         bytesExpected:(unsigned long long)bytesExpected
                authenticationProvider:(id<CMISAuthenticationProvider>) authenticationProvider
                       completionBlock:(void (^)(CMISHttpResponse *httpResponse, NSError *error))completionBlock
                         progressBlock:(void (^)(unsigned long long bytesUploaded, unsigned long long bytesTotal))progressBlock
{
    CMISHttpUploadRequest *httpRequest = [[self alloc] initWithHttpMethod:httpRequestMethod
                                                          completionBlock:completionBlock
                                                            progressBlock:progressBlock];
    httpRequest.inputStream = inputStream;
    httpRequest.additionalHeaders = additionalHeaders;
    httpRequest.bytesExpected = bytesExpected;
    httpRequest.authenticationProvider = authenticationProvider;
    
    if ([httpRequest startRequest:urlRequest]) {
        httpRequest = nil;
    }
    
    return httpRequest;
}


- (id)initWithHttpMethod:(CMISHttpRequestMethod)httpRequestMethod
         completionBlock:(void (^)(CMISHttpResponse *httpResponse, NSError *error))completionBlock
           progressBlock:(void (^)(unsigned long long bytesUploaded, unsigned long long bytesTotal))progressBlock
{
    self = [super initWithHttpMethod:httpRequestMethod
                     completionBlock:completionBlock];
    if (self) {
        _progressBlock = progressBlock;
    }
    return self;
}


- (BOOL)startRequest:(NSMutableURLRequest*)urlRequest
{
    if (self.inputStream) {
        urlRequest.HTTPBodyStream = self.inputStream;
    }

    return [super startRequest:urlRequest];
}


- (void)cancel
{
    self.progressBlock = nil;
    
    [super cancel];
}


- (void)connection:(NSURLConnection *)connection didReceiveResponse:(NSURLResponse *)response
{
    [super connection:connection didReceiveResponse:response];
    
    self.bytesUploaded = 0;
}

- (void)connection:(NSURLConnection *)connection
   didSendBodyData:(NSInteger)bytesWritten
 totalBytesWritten:(NSInteger)totalBytesWritten
totalBytesExpectedToWrite:(NSInteger)totalBytesExpectedToWrite
{
    if (self.progressBlock) {
        if (self.bytesExpected == 0) {
            self.progressBlock((NSUInteger)totalBytesWritten, (NSUInteger)totalBytesExpectedToWrite);
        } else {
            self.progressBlock((NSUInteger)totalBytesWritten, self.bytesExpected);
        }
    }
}


- (void)connection:(NSURLConnection *)connection didFailWithError:(NSError *)error
{
    [super connection:connection didFailWithError:error];
    
    self.progressBlock = nil;
}


- (void)connectionDidFinishLoading:(NSURLConnection *)connection
{
    [super connectionDidFinishLoading:connection];
    
    self.progressBlock = nil;
}


@end