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/*
* Copyright 2017 Google
*
* Licensed 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 "FWriteRecord.h"
#import "FPath.h"
#import "FNode.h"
#import "FCompoundWrite.h"
@interface FWriteRecord ()
@property (nonatomic, readwrite) NSInteger writeId;
@property (nonatomic, strong, readwrite) FPath *path;
@property (nonatomic, strong, readwrite) id<FNode> overwrite;
@property (nonatomic, strong, readwrite) FCompoundWrite *merge;
@property (nonatomic, readwrite) BOOL visible;
@end
@implementation FWriteRecord
- (id)initWithPath:(FPath *)path overwrite:(id<FNode>)overwrite writeId:(NSInteger)writeId visible:(BOOL)isVisible {
self = [super init];
if (self) {
self.path = path;
if (overwrite == nil) {
[NSException raise:NSInvalidArgumentException format:@"Can't pass nil as overwrite parameter to an overwrite write record"];
}
self.overwrite = overwrite;
self.merge = nil;
self.writeId = writeId;
self.visible = isVisible;
}
return self;
}
- (id)initWithPath:(FPath *)path merge:(FCompoundWrite *)merge writeId:(NSInteger)writeId {
self = [super init];
if (self) {
self.path = path;
if (merge == nil) {
[NSException raise:NSInvalidArgumentException format:@"Can't pass nil as merge parameter to an merge write record"];
}
self.overwrite = nil;
self.merge = merge;
self.writeId = writeId;
self.visible = YES;
}
return self;
}
- (id<FNode>)overwrite {
if (self->_overwrite == nil) {
[NSException raise:NSInvalidArgumentException format:@"Can't get overwrite for merge write record!"];
}
return self->_overwrite;
}
- (FCompoundWrite *)compoundWrite {
if (self->_merge == nil) {
[NSException raise:NSInvalidArgumentException format:@"Can't get merge for overwrite write record!"];
}
return self->_merge;
}
- (BOOL)isMerge {
return self->_merge != nil;
}
- (BOOL)isOverwrite {
return self->_overwrite != nil;
}
- (NSString *)description {
if (self.isOverwrite) {
return [NSString stringWithFormat:@"FWriteRecord { writeId = %lu, path = %@, overwrite = %@, visible = %d }",
(unsigned long)self.writeId, self.path, self.overwrite, self.visible];
} else {
return [NSString stringWithFormat:@"FWriteRecord { writeId = %lu, path = %@, merge = %@ }",
(unsigned long)self.writeId, self.path, self.merge];
}
}
- (BOOL)isEqual:(id)object {
if (![object isKindOfClass:[self class]]) {
return NO;
}
FWriteRecord *other = (FWriteRecord *)object;
if (self->_writeId != other->_writeId) return NO;
if (self->_path != other->_path && ![self->_path isEqual:other->_path]) return NO;
if (self->_overwrite != other->_overwrite && ![self->_overwrite isEqual:other->_overwrite]) return NO;
if (self->_merge != other->_merge && ![self->_merge isEqual:other->_merge]) return NO;
if (self->_visible != other->_visible) return NO;
return YES;
}
- (NSUInteger)hash {
NSUInteger hash = self->_writeId * 17;
hash = hash * 31 + self->_path.hash;
hash = hash * 31 + self->_overwrite.hash;
hash = hash * 31 + self->_merge.hash;
hash = hash * 31 + ((self->_visible) ? 1 : 0);
return hash;
}
@end
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