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/*
* Copyright 2018 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.
*/
#include "Firestore/core/src/firebase/firestore/core/relation_filter.h"
#include <utility>
#include "absl/types/optional.h"
namespace firebase {
namespace firestore {
namespace core {
using model::FieldPath;
using model::FieldValue;
RelationFilter::RelationFilter(FieldPath field,
Operator op,
FieldValue value_rhs)
: field_(std::move(field)), op_(op), value_rhs_(std::move(value_rhs)) {
}
const FieldPath& RelationFilter::field() const {
return field_;
}
bool RelationFilter::Matches(const model::Document& doc) const {
if (field_.IsKeyFieldPath()) {
// TODO(rsgowman): Port this case
abort();
} else {
absl::optional<FieldValue> doc_field_value = doc.field(field_);
return doc_field_value && MatchesValue(doc_field_value.value());
}
}
bool RelationFilter::MatchesValue(const FieldValue& other) const {
// Only compare types with matching backend order (such as double and int).
return FieldValue::Comparable(other.type(), value_rhs_.type()) &&
MatchesComparison(other);
}
bool RelationFilter::MatchesComparison(const FieldValue& other) const {
switch (op_) {
case Operator::LessThan:
return other < value_rhs_;
case Operator::LessThanOrEqual:
return other <= value_rhs_;
case Operator::Equal:
return other == value_rhs_;
case Operator::GreaterThan:
return other > value_rhs_;
case Operator::GreaterThanOrEqual:
return other >= value_rhs_;
}
UNREACHABLE();
}
std::string RelationFilter::CanonicalId() const {
// TODO(rsgowman): Port this
abort();
}
} // namespace core
} // namespace firestore
} // namespace firebase
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