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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 "Firestore/Source/Local/FSTDocumentReference.h"
#import "Firestore/Source/Model/FSTDocumentKey.h"
#import "Firestore/Source/Util/FSTComparison.h"
NS_ASSUME_NONNULL_BEGIN
@implementation FSTDocumentReference
- (instancetype)initWithKey:(FSTDocumentKey *)key ID:(int)ID {
self = [super init];
if (self) {
_key = key;
_ID = ID;
}
return self;
}
- (BOOL)isEqual:(id)other {
if (other == self) return YES;
if (![[other class] isEqual:[self class]]) return NO;
FSTDocumentReference *reference = (FSTDocumentReference *)other;
return [self.key isEqualToKey:reference.key] && self.ID == reference.ID;
}
- (NSUInteger)hash {
NSUInteger result = [self.key hash];
result = result * 31u + self.ID;
return result;
}
- (NSString *)description {
return [NSString stringWithFormat:@"<FSTDocumentReference: key=%@, ID=%d>", self.key, self.ID];
}
- (id)copyWithZone:(nullable NSZone *)zone {
// FSTDocumentReference is immutable
return self;
}
@end
#pragma mark Comparators
/** Sorts document references by key then ID. */
const NSComparator FSTDocumentReferenceComparatorByKey =
^NSComparisonResult(FSTDocumentReference *left, FSTDocumentReference *right) {
NSComparisonResult result = FSTDocumentKeyComparator(left.key, right.key);
if (result != NSOrderedSame) {
return result;
}
return FSTCompareInts(left.ID, right.ID);
};
/** Sorts document references by ID then key. */
const NSComparator FSTDocumentReferenceComparatorByID =
^NSComparisonResult(FSTDocumentReference *left, FSTDocumentReference *right) {
NSComparisonResult result = FSTCompareInts(left.ID, right.ID);
if (result != NSOrderedSame) {
return result;
}
return FSTDocumentKeyComparator(left.key, right.key);
};
NS_ASSUME_NONNULL_END
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