// Copyright (C) 2017 The Android Open Source Project
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include "src/stats_log.pb.h"
#include "src/statsd_config.pb.h"
#include "src/StatsLogProcessor.h"
#include "src/logd/LogEvent.h"
#include "stats_event.h"
#include "statslog.h"

namespace android {
namespace os {
namespace statsd {

// Create AtomMatcher proto to simply match a specific atom type.
AtomMatcher CreateSimpleAtomMatcher(const string& name, int atomId);

// Create AtomMatcher proto for scheduled job state changed.
AtomMatcher CreateScheduledJobStateChangedAtomMatcher();

// Create AtomMatcher proto for starting a scheduled job.
AtomMatcher CreateStartScheduledJobAtomMatcher();

// Create AtomMatcher proto for a scheduled job is done.
AtomMatcher CreateFinishScheduledJobAtomMatcher();

// Create AtomMatcher proto for screen brightness state changed.
AtomMatcher CreateScreenBrightnessChangedAtomMatcher();

// Create AtomMatcher proto for acquiring wakelock.
AtomMatcher CreateAcquireWakelockAtomMatcher();

// Create AtomMatcher proto for releasing wakelock.
AtomMatcher CreateReleaseWakelockAtomMatcher() ;

// Create AtomMatcher proto for screen turned on.
AtomMatcher CreateScreenTurnedOnAtomMatcher();

// Create AtomMatcher proto for screen turned off.
AtomMatcher CreateScreenTurnedOffAtomMatcher();

// Create AtomMatcher proto for app sync turned on.
AtomMatcher CreateSyncStartAtomMatcher();

// Create AtomMatcher proto for app sync turned off.
AtomMatcher CreateSyncEndAtomMatcher();

// Create AtomMatcher proto for app sync moves to background.
AtomMatcher CreateMoveToBackgroundAtomMatcher();

// Create AtomMatcher proto for app sync moves to foreground.
AtomMatcher CreateMoveToForegroundAtomMatcher();

// Create Predicate proto for screen is off.
Predicate CreateScreenIsOffPredicate();

// Create Predicate proto for a running scheduled job.
Predicate CreateScheduledJobPredicate();

// Create Predicate proto for holding wakelock.
Predicate CreateHoldingWakelockPredicate();

// Create a Predicate proto for app syncing.
Predicate CreateIsSyncingPredicate();

// Create a Predicate proto for app is in background.
Predicate CreateIsInBackgroundPredicate();

// Add a predicate to the predicate combination.
void addPredicateToPredicateCombination(const Predicate& predicate, Predicate* combination);

// Create dimensions from primitive fields.
FieldMatcher CreateDimensions(const int atomId, const std::vector<int>& fields);

// Create dimensions by attribution uid and tag.
FieldMatcher CreateAttributionUidAndTagDimensions(const int atomId,
                                                  const std::vector<Position>& positions);

// Create dimensions by attribution uid only.
FieldMatcher CreateAttributionUidDimensions(const int atomId,
                                            const std::vector<Position>& positions);

void writeAttribution(AStatsEvent* statsEvent, const vector<int>& attributionUids,
                      const vector<string>& attributionTags);

void parseStatsEventToLogEvent(AStatsEvent* statsEvent, LogEvent* logEvent);

// Create log event for screen state changed.
std::unique_ptr<LogEvent> CreateScreenStateChangedEvent(
        uint64_t timestampNs, const android::view::DisplayStateEnum state);

// Create log event when scheduled job starts.
std::unique_ptr<LogEvent> CreateStartScheduledJobEvent(uint64_t timestampNs,
                                                       const vector<int>& attributionUids,
                                                       const vector<string>& attributionTags,
                                                       const string& jobName);

// Create log event when scheduled job finishes.
std::unique_ptr<LogEvent> CreateFinishScheduledJobEvent(uint64_t timestampNs,
                                                        const vector<int>& attributionUids,
                                                        const vector<string>& attributionTags,
                                                        const string& jobName);

// Create log event when the app sync starts.
std::unique_ptr<LogEvent> CreateSyncStartEvent(uint64_t timestampNs,
                                               const vector<int>& attributionUids,
                                               const vector<string>& attributionTags,
                                               const string& name);

// Create log event when the app sync ends.
std::unique_ptr<LogEvent> CreateSyncEndEvent(uint64_t timestampNs,
                                             const vector<int>& attributionUids,
                                             const vector<string>& attributionTags,
                                             const string& name);

// Create a statsd log event processor upon the start time in seconds, config and key.
sp<StatsLogProcessor> CreateStatsLogProcessor(const long timeBaseSec, const StatsdConfig& config,
                                              const ConfigKey& key);

// Util function to sort the log events by timestamp.
void sortLogEventsByTimestamp(std::vector<std::unique_ptr<LogEvent>> *events);

int64_t StringToId(const string& str);

}  // namespace statsd
}  // namespace os
}  // namespace android