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// Copyright 2023 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_ATTRIBUTION_REPORTING_EVENT_REPORT_WINDOWS_H_
#define COMPONENTS_ATTRIBUTION_REPORTING_EVENT_REPORT_WINDOWS_H_
#include <optional>
#include <vector>
#include "base/component_export.h"
#include "base/containers/flat_set.h"
#include "base/time/time.h"
#include "base/types/expected.h"
#include "components/attribution_reporting/source_registration_error.mojom-forward.h"
#include "components/attribution_reporting/source_type.mojom-forward.h"
namespace base {
class DictValue;
} // namespace base
namespace attribution_reporting {
class COMPONENT_EXPORT(ATTRIBUTION_REPORTING) EventReportWindows {
public:
// Represents the potential outcomes from checking if a trigger falls within
// a report window.
enum class WindowResult {
kFallsWithin = 0,
kPassed = 1,
kNotStarted = 2,
kMaxValue = kNotStarted,
};
static std::optional<EventReportWindows> Create(
base::TimeDelta start_time,
std::vector<base::TimeDelta> end_times);
// Uses default windows based on the source type, but truncated at
// `report_window`.
static std::optional<EventReportWindows> FromDefaults(
base::TimeDelta report_window,
mojom::SourceType);
static base::expected<EventReportWindows, mojom::SourceRegistrationError>
FromJSON(const base::DictValue& registration,
base::TimeDelta expiry,
mojom::SourceType);
// Creates a single report window at `kMaxSourceExpiry`.
EventReportWindows();
~EventReportWindows();
EventReportWindows(const EventReportWindows&);
EventReportWindows& operator=(const EventReportWindows&);
EventReportWindows(EventReportWindows&&);
EventReportWindows& operator=(EventReportWindows&&);
base::TimeDelta start_time() const { return start_time_; }
const base::flat_set<base::TimeDelta>& end_times() const {
return end_times_;
}
bool IsValidForExpiry(base::TimeDelta expiry) const;
// Calculates the report time for a conversion associated with a given
// source.
base::Time ComputeReportTime(base::Time source_time,
base::Time trigger_time) const;
base::Time ReportTimeAtWindow(base::Time source_time, int window_index) const;
base::Time StartTimeAtWindow(base::Time source_time, int window_index) const;
WindowResult FallsWithin(base::TimeDelta trigger_moment) const;
void Serialize(base::DictValue& dict) const;
friend bool operator==(const EventReportWindows&,
const EventReportWindows&) = default;
private:
EventReportWindows(base::TimeDelta start_time,
base::flat_set<base::TimeDelta> end_times);
EventReportWindows(base::TimeDelta report_window, mojom::SourceType);
base::TimeDelta start_time_;
base::flat_set<base::TimeDelta> end_times_;
};
} // namespace attribution_reporting
#endif // COMPONENTS_ATTRIBUTION_REPORTING_EVENT_REPORT_WINDOWS_H_
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