NSError_CouchDBExtensions.m

//
//  NSError_CouchDBExtensions.m
//  CLI Sample
//
//  Created by Jonathan Wight on 05/26/10.
//  Copyright 2010 toxicsoftware.com. All rights reserved.
//

#import "NSError_CouchDBExtensions.h"

#import "CouchDBClientConstants.h"

@implementation NSError (NSError_CouchDBExtensions)

+ (NSError *)couchDBErrorWithError:(NSError *)inError JSONDictionary:(NSDictionary *)inJSONDictionary
	{
	NSError *theError = NULL;
	if ([inError.domain isEqual:NSURLErrorDomain] && (inError.code < 200 || inError.code >= 300))
		{
		NSMutableDictionary *theUserInfo = [NSMutableDictionary dictionary];

		[theUserInfo setObject:inError forKey:NSUnderlyingErrorKey];
		
		if ([inJSONDictionary objectForKey:@"reason"] != NULL)
			[theUserInfo setObject:[inJSONDictionary objectForKey:@"reason"] forKey:NSLocalizedDescriptionKey];
		if (inJSONDictionary)
			[theUserInfo setObject:inJSONDictionary forKey:@"json"];
		
		NSInteger theErrorCode = [self errorCodeForCouchDBError:[inJSONDictionary objectForKey:@"reason"]];
		
		theError = [NSError errorWithDomain:kCouchErrorDomain code:theErrorCode userInfo:theUserInfo];
		}

	return(theError);
	}

+ (NSError *)couchDBErrorWithURLResponse:(NSURLResponse *)inURLResponse JSONDictionary:(NSDictionary *)inJSONDictionary
	{
	NSError *theError = NULL;
	NSHTTPURLResponse *theHTTPResponse = (NSHTTPURLResponse *)inURLResponse;
	NSInteger theStatusCode = theHTTPResponse.statusCode;
	if (inJSONDictionary == NULL || theStatusCode < 200 || theStatusCode >= 300)
		{
		NSMutableDictionary *theUserInfo = [NSMutableDictionary dictionary];
		
		if (theHTTPResponse)
			[theUserInfo setObject:theHTTPResponse forKey:@"Response"];
		if ([inJSONDictionary objectForKey:@"reason"] != NULL)
			[theUserInfo setObject:[inJSONDictionary objectForKey:@"reason"] forKey:NSLocalizedDescriptionKey];
		if (inJSONDictionary)
			[theUserInfo setObject:inJSONDictionary forKey:@"json"];
		
		NSInteger theErrorCode = [self errorCodeForCouchDBError:[inJSONDictionary objectForKey:@"reason"]];
		
		theError = [NSError errorWithDomain:kCouchErrorDomain code:theErrorCode userInfo:theUserInfo];
		}

	return(theError);
	}

+ (NSInteger)errorCodeForCouchDBError:(NSString *)inError
	{
	if ([inError isEqualToString:@"no_db_file"])
		{
		return(CouchDBErrorCode_NoDatabase);
		}
	else
		{
		return(CouchDBErrorCode_ServerError);
		}
	}

@end