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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_FEATURE_ENGAGEMENT_INTERNAL_EVENT_MODEL_READER_H_
#define COMPONENTS_FEATURE_ENGAGEMENT_INTERNAL_EVENT_MODEL_READER_H_
#include <map>
#include <string>
#include "base/time/time.h"
namespace feature_engagement {
class Event;
// A EventModelReader provides all necessary runtime state.
class EventModelReader {
public:
virtual ~EventModelReader() = default;
// Returns whether the model is ready, i.e. whether it has been successfully
// initialized.
virtual bool IsReady() const = 0;
// Retrieves the Event object for the event with the given name. If the event
// is not found, a nullptr will be returned. Calling this before the
// EventModelReader has finished initializing will result in undefined
// behavior.
virtual const Event* GetEvent(const std::string& event_name) const = 0;
// Returns the number of times the event with |event_name| happened in the
// past |window_size| days from and including |current_day|, subtracted by
// the number of times the event has been snoozed.
// If |window_size| > |current_day|, all events since UNIX epoch will be
// counted, since |current_day| represents number of days since UNIX epoch.
virtual uint32_t GetEventCount(const std::string& event_name,
uint32_t current_day,
uint32_t window_size) const = 0;
// Returns the last snooze timestamp for the feature associated with
// |event_name|.
virtual base::Time GetLastSnoozeTimestamp(
const std::string& event_name) const = 0;
// Returns the snooze count. Used for comparison against the max limit.
virtual uint32_t GetSnoozeCount(const std::string& event_name,
uint32_t window,
uint32_t current_day) const = 0;
// Returns whether the user has dismissed the snooze associated with
// |event_name|.
virtual bool IsSnoozeDismissed(const std::string& event_name) const = 0;
};
} // namespace feature_engagement
#endif // COMPONENTS_FEATURE_ENGAGEMENT_INTERNAL_EVENT_MODEL_READER_H_
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