//

// GTRepository+Blame.m

// ObjectiveGitFramework

//

// Created by Ezekiel Pierson on 2/5/14.

// Copyright (c) 2014 GitHub, Inc. All rights reserved.

//

#import "GTRepository+Blame.h"

#import <git2/errors.h>

#import "GTBlame.h"

#import "NSError+Git.h"

NSString * const GTBlameOptionsFlags = @"GTBlameOptionsFlags";

NSString * const GTBlameOptionsNewestCommitOID = @"GTBlameOptionsNewestCommitOID";

NSString * const GTBlameOptionsOldestCommitOID = @"GTBlameOptionsOldestCommitOID";

NSString * const GTBlameOptionsFirstLine = @"GTBlameOptionsFirstLine";

NSString * const GTBlameOptionsLastLine = @"GTBlameOptionsLastLine";

@implementation GTRepository (Blame)

- (GTBlame *)blameWithFile:(NSString *)path options:(NSDictionary *)options error:(NSError **)error {

NSParameterAssert(path != nil);

git_blame *blame = NULL;

git_blame_options blame_options = GIT_BLAME_OPTIONS_INIT;

const git_oid *newest_commit = [options[GTBlameOptionsNewestCommitOID] git_oid];

const git_oid *oldest_commit = [options[GTBlameOptionsOldestCommitOID] git_oid];

blame_options.flags = (uint32_t)[options[GTBlameOptionsFlags] unsignedIntegerValue];

if (newest_commit != nil) blame_options.newest_commit = *newest_commit;

if (oldest_commit != nil) blame_options.oldest_commit = *oldest_commit;

blame_options.min_line = (uint32_t)[options[GTBlameOptionsFirstLine] unsignedIntegerValue];

blame_options.max_line = (uint32_t)[options[GTBlameOptionsLastLine] unsignedIntegerValue];

int returnValue = git_blame_file(&blame, self.git_repository, path.fileSystemRepresentation, &blame_options);

if (returnValue != GIT_OK) {

if (error != NULL) *error = [NSError git_errorFor:returnValue description:@"Failed to create blame for file %@", path];

return nil;

}

return [[GTBlame alloc] initWithGitBlame:blame];

}

@end