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// Copyright 2025 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef COMPONENTS_COMMERCE_CORE_DISCOUNT_INFOS_STORAGE_H_
#define COMPONENTS_COMMERCE_CORE_DISCOUNT_INFOS_STORAGE_H_
#include <vector>
#include "base/check.h"
#include "base/functional/bind.h"
#include "base/functional/callback.h"
#include "base/memory/ptr_util.h"
#include "base/scoped_observation.h"
#include "components/commerce/core/commerce_types.h"
#include "components/commerce/core/proto/discount_infos_db_content.pb.h"
#include "components/history/core/browser/history_service.h"
#include "components/history/core/browser/history_service_observer.h"
#include "components/history/core/browser/history_types.h"
#include "components/session_proto_db/session_proto_storage.h"
namespace commerce {
using DiscountInfosContent = discount_infos_db::DiscountInfosContentProto;
using DiscountInfosKeyAndValues =
std::vector<SessionProtoStorage<DiscountInfosContent>::KeyAndValue>;
class DiscountInfosStorage : public history::HistoryServiceObserver {
public:
explicit DiscountInfosStorage(
SessionProtoStorage<DiscountInfosContent>* discount_infos_proto_db,
history::HistoryService* history_service);
DiscountInfosStorage(const DiscountInfosStorage&) = delete;
DiscountInfosStorage& operator=(const DiscountInfosStorage&) = delete;
~DiscountInfosStorage() override;
// Load all discounts with prefix matching the given url.
virtual void LoadDiscountsWithPrefix(const GURL& url,
DiscountInfoCallback callback);
// Save discounts for the given url.
virtual void SaveDiscounts(const GURL& url,
const std::vector<DiscountInfo>& infos);
// history::HistoryServiceObserver:
void OnHistoryDeletions(history::HistoryService* history_service,
const history::DeletionInfo& deletion_info) override;
private:
void DeleteDiscountsForUrl(const std::string& url);
void OnLoadDiscounts(const GURL& url,
DiscountInfoCallback callback,
bool succeeded,
DiscountInfosKeyAndValues data);
// When loading from local db, discard expired discounts and only convert &
// return unexpired ones.
std::vector<DiscountInfo> GetUnexpiredDiscountsFromProto(
const DiscountInfosContent& proto);
raw_ptr<SessionProtoStorage<DiscountInfosContent>> proto_db_;
base::ScopedObservation<history::HistoryService,
history::HistoryServiceObserver>
history_service_observation_{this};
base::WeakPtrFactory<DiscountInfosStorage> weak_ptr_factory_{this};
};
} // namespace commerce
#endif // COMPONENTS_COMMERCE_CORE_DISCOUNT_INFOS_STORAGE_H_
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