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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"
#include <utility>
#include "Firestore/core/src/firebase/firestore/model/document_key.h"
#include "Firestore/core/src/firebase/firestore/util/comparison.h"
using firebase::firestore::model::DocumentKey;
using firebase::firestore::util::WrapCompare;
NS_ASSUME_NONNULL_BEGIN
@implementation FSTDocumentReference {
DocumentKey _key;
}
- (instancetype)initWithKey:(DocumentKey)key ID:(int32_t)ID {
self = [super init];
if (self) {
_key = std::move(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=%s, ID=%d>",
self.key.ToString().c_str(), self.ID];
}
- (id)copyWithZone:(nullable NSZone *)zone {
// FSTDocumentReference is immutable
return self;
}
- (const firebase::firestore::model::DocumentKey &)key {
return _key;
}
@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 WrapCompare<int32_t>(left.ID, right.ID);
};
/** Sorts document references by ID then key. */
const NSComparator FSTDocumentReferenceComparatorByID =
^NSComparisonResult(FSTDocumentReference *left, FSTDocumentReference *right) {
NSComparisonResult result = WrapCompare<int32_t>(left.ID, right.ID);
if (result != NSOrderedSame) {
return result;
}
return FSTDocumentKeyComparator(left.key, right.key);
};
NS_ASSUME_NONNULL_END
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