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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/Model/FSTDocumentKey.h"
#include <string>
#include <utility>
#import "Firestore/Source/Core/FSTFirestoreClient.h"
#import "Firestore/Source/Util/FSTAssert.h"
#include "Firestore/core/src/firebase/firestore/model/resource_path.h"
#include "Firestore/core/src/firebase/firestore/util/hashing.h"
#include "Firestore/core/src/firebase/firestore/util/string_apple.h"
namespace util = firebase::firestore::util;
using firebase::firestore::model::ResourcePath;
NS_ASSUME_NONNULL_BEGIN
@interface FSTDocumentKey () {
/** The path to the document. */
ResourcePath _path;
}
@end
@implementation FSTDocumentKey
+ (instancetype)keyWithPath:(ResourcePath)path {
return [[FSTDocumentKey alloc] initWithPath:std::move(path)];
}
+ (instancetype)keyWithSegments:(std::initializer_list<std::string>)segments {
return [FSTDocumentKey keyWithPath:ResourcePath(segments)];
}
+ (instancetype)keyWithPathString:(NSString *)resourcePath {
return [FSTDocumentKey keyWithPath:ResourcePath::FromString(util::MakeStringView(resourcePath))];
}
/** Designated initializer. */
- (instancetype)initWithPath:(ResourcePath)path {
FSTAssert([FSTDocumentKey isDocumentKey:path], @"invalid document key path: %s",
path.CanonicalString().c_str());
if (self = [super init]) {
_path = path;
}
return self;
}
- (BOOL)isEqual:(id)object {
if (self == object) {
return YES;
}
if (![object isKindOfClass:[FSTDocumentKey class]]) {
return NO;
}
return [self isEqualToKey:(FSTDocumentKey *)object];
}
- (NSUInteger)hash {
return util::Hash(_path);
}
- (NSString *)description {
return [NSString stringWithFormat:@"<FSTDocumentKey: %s>", _path.CanonicalString().c_str()];
}
/** Implements NSCopying without actually copying because FSTDocumentKeys are immutable. */
- (id)copyWithZone:(NSZone *_Nullable)zone {
return self;
}
- (BOOL)isEqualToKey:(FSTDocumentKey *)other {
return FSTDocumentKeyComparator(self, other) == NSOrderedSame;
}
- (NSComparisonResult)compare:(FSTDocumentKey *)other {
return FSTDocumentKeyComparator(self, other);
}
+ (NSComparator)comparator {
return ^NSComparisonResult(id obj1, id obj2) {
return [obj1 compare:obj2];
};
}
+ (BOOL)isDocumentKey:(const ResourcePath &)path {
return path.size() % 2 == 0;
}
- (const ResourcePath &)path {
return _path;
}
@end
const NSComparator FSTDocumentKeyComparator =
^NSComparisonResult(FSTDocumentKey *key1, FSTDocumentKey *key2) {
if (key1.path < key2.path) {
return NSOrderedAscending;
} else if (key1.path > key2.path) {
return NSOrderedDescending;
} else {
return NSOrderedSame;
}
};
NSString *const kDocumentKeyPath = @"__name__";
NS_ASSUME_NONNULL_END
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