create

Pods/FirebaseFirestoreInternal/Firestore/Source/API/FIRAggregateQuerySnapshot.mm

@@ -0,0 +1,102 @@
+/*
+ * Copyright 2022 Google LLC
+ *
+ * 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 "FIRAggregateQuerySnapshot+Internal.h"
+
+#import "FIRAggregateQuery.h"
+#import "FIRQuery.h"
+
+#import "Firestore/Source/API/FIRAggregateField+Internal.h"
+#import "Firestore/Source/API/FIRFieldPath+Internal.h"
+#import "Firestore/Source/API/FIRFirestore+Internal.h"
+#import "Firestore/Source/API/FSTUserDataWriter.h"
+
+#include "absl/types/optional.h"
+
+#include "Firestore/Protos/nanopb/google/firestore/v1/document.nanopb.h"
+#include "Firestore/core/src/model/aggregate_alias.h"
+#include "Firestore/core/src/model/field_path.h"
+#include "Firestore/core/src/util/exception.h"
+
+using firebase::firestore::google_firestore_v1_Value;
+using firebase::firestore::model::AggregateAlias;
+using firebase::firestore::model::FieldPath;
+using firebase::firestore::model::ObjectValue;
+using firebase::firestore::util::ThrowInvalidArgument;
+
+NS_ASSUME_NONNULL_BEGIN
+
+@implementation FIRAggregateQuerySnapshot {
+  ObjectValue _result;
+  FIRAggregateQuery *_query;
+}
+
+- (instancetype)initWithObject:(ObjectValue)result query:(FIRAggregateQuery *)query {
+  if (self = [super init]) {
+    _result = std::move(result);
+    _query = query;
+  }
+  return self;
+}
+
+#pragma mark - NSObject Methods
+
+- (BOOL)isEqual:(nullable id)other {
+  if (other == self) return YES;
+  if (![[other class] isEqual:[self class]]) return NO;
+
+  auto otherSnap = static_cast<FIRAggregateQuerySnapshot *>(other);
+  return _result == otherSnap->_result && [_query isEqual:otherSnap->_query];
+}
+
+- (NSUInteger)hash {
+  NSUInteger result = [_query hash];
+  result = 31 * result + _result.Hash();
+  return result;
+}
+
+#pragma mark - Public Methods
+
+- (NSNumber *)count {
+  return (NSNumber *)[self valueForAggregateField:[FIRAggregateField aggregateFieldForCount]];
+}
+
+- (FIRAggregateQuery *)query {
+  return _query;
+}
+
+- (id)valueForAggregateField:(FIRAggregateField *)aggregateField {
+  FIRServerTimestampBehavior serverTimestampBehavior = FIRServerTimestampBehaviorNone;
+  AggregateAlias alias = [aggregateField createAlias];
+  absl::optional<google_firestore_v1_Value> fieldValue = _result.Get(alias.StringValue());
+  if (!fieldValue) {
+    std::string path{""};
+    if (aggregateField.fieldPath) {
+      path = [aggregateField.fieldPath internalValue].CanonicalString();
+    }
+
+    ThrowInvalidArgument("'%s(%s)' was not requested in the aggregation query.",
+                         [aggregateField name], path);
+  }
+  FSTUserDataWriter *dataWriter =
+      [[FSTUserDataWriter alloc] initWithFirestore:_query.query.firestore.wrapped
+                           serverTimestampBehavior:serverTimestampBehavior];
+  return [dataWriter convertedValue:*fieldValue];
+}
+
+@end
+
+NS_ASSUME_NONNULL_END