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// Copyright 2020 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_FEED_CORE_V2_SCHEDULING_H_
#define COMPONENTS_FEED_CORE_V2_SCHEDULING_H_
#include <vector>
#include "base/time/time.h"
#include "base/values.h"
#include "components/feed/core/v2/enums.h"
#include "components/feed/core/v2/public/stream_type.h"
namespace feedstore {
class Metadata;
}
namespace feed {
// A schedule for making Feed refresh requests.
// |anchor_time| + |refresh_offsets[i]| is the time each fetch should be made.
struct RequestSchedule {
RequestSchedule();
~RequestSchedule();
RequestSchedule(const RequestSchedule&);
RequestSchedule& operator=(const RequestSchedule&);
RequestSchedule(RequestSchedule&&);
RequestSchedule& operator=(RequestSchedule&&);
enum class Type : int {
kScheduledRefresh = 0,
kFeedCloseRefresh = 1,
kMaxValue = kFeedCloseRefresh,
};
base::Time anchor_time;
std::vector<base::TimeDelta> refresh_offsets;
Type type = Type::kScheduledRefresh;
};
base::Value::Dict RequestScheduleToDict(const RequestSchedule& schedule);
RequestSchedule RequestScheduleFromDict(const base::Value::Dict& dict);
// Given a schedule, returns the next time a request should be made.
// Updates |schedule| accordingly. If |schedule| has no fetches remaining,
// returns a scheduled time using |Config::default_background_refresh_interval|.
base::Time NextScheduledRequestTime(base::Time now, RequestSchedule* schedule);
// Returns whether we should wait for new content before showing stream content.
bool ShouldWaitForNewContent(const feedstore::Metadata& metadata,
const StreamType& stream_type,
base::TimeDelta content_age,
bool is_web_feed_subscriber);
bool ContentInvalidFromAge(const feedstore::Metadata& metadata,
const StreamType& stream_type,
base::TimeDelta content_age,
bool is_web_feed_subscriber);
} // namespace feed
#endif // COMPONENTS_FEED_CORE_V2_SCHEDULING_H_
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