// Copyright 2020 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef SRC_LIB_ANALYTICS_CPP_GOOGLE_ANALYTICS_EVENT_H_
#define SRC_LIB_ANALYTICS_CPP_GOOGLE_ANALYTICS_EVENT_H_

#include <map>
#include <optional>
#include <string>
#include <string_view>

#include "src/lib/analytics/cpp/google_analytics/general_parameters.h"

namespace analytics::google_analytics {

// Representation of a Google Analytics event.
// See
// https://developers.google.com/analytics/devguides/collection/protocol/v1/parameters#events
class Event {
 public:
  Event(std::string_view category, std::string_view action,
        const std::optional<std::string_view>& label = std::nullopt,
        const std::optional<int64_t>& value = std::nullopt);

  // Add general parameters (not specific to event hit type), for example, av (application version)
  void AddGeneralParameters(const GeneralParameters& general_parameters);

  // Represent an event in parameter form
  // e.g. {"ec": "category", "ea": "action", "el": "label"}
  const std::map<std::string, std::string>& parameters() const { return parameters_; }

 private:
  std::map<std::string, std::string> parameters_;
};

}  // namespace analytics::google_analytics

#endif  // SRC_LIB_ANALYTICS_CPP_GOOGLE_ANALYTICS_EVENT_H_