/*
 * Copyright 2022 Google LLC
 *
 * 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.
 */
package com.google.android.libraries.mobiledatadownload.internal.logging.testing;

import static com.google.common.util.concurrent.Futures.immediateFailedFuture;

import com.google.android.libraries.mobiledatadownload.internal.logging.EventLogger;
import com.google.common.collect.ArrayListMultimap;
import com.google.common.util.concurrent.AsyncCallable;
import com.google.common.util.concurrent.ListenableFuture;
import com.google.mobiledatadownload.LogEnumsProto.MddClientEvent;
import com.google.mobiledatadownload.LogEnumsProto.MddDownloadResult;
import com.google.mobiledatadownload.LogProto.DataDownloadFileGroupStats;
import com.google.mobiledatadownload.LogProto.MddDownloadLatency;
import com.google.mobiledatadownload.LogProto.MddLibApiResultLog;
import com.google.mobiledatadownload.LogProto.MddNetworkStats;
import com.google.mobiledatadownload.LogProto.MddStorageStats;

import java.util.ArrayList;
import java.util.List;

/** Fake implementation of {@link EventLogger} for use in tests. */
public final class FakeEventLogger implements EventLogger {

    private final ArrayList<MddClientEvent.Code> loggedCodes = new ArrayList<>();
    private final ArrayListMultimap<DataDownloadFileGroupStats, MddDownloadLatency>
            loggedLatencies =
            ArrayListMultimap.create();
    private final ArrayListMultimap<DataDownloadFileGroupStats, Void> loggedNewConfigReceived =
            ArrayListMultimap.create();
    private final List<MddLibApiResultLog> loggedMddLibApiResultLog = new ArrayList<>();
    private final ArrayList<DataDownloadFileGroupStats> loggedMddQueryStats = new ArrayList<>();

    @Override
    public void logEventSampled(MddClientEvent.Code eventCode) {
        loggedCodes.add(eventCode);
    }

    @Override
    public void logEventSampled(
            MddClientEvent.Code eventCode,
            String fileGroupName,
            int fileGroupVersionNumber,
            long buildId,
            String variantId) {
        loggedCodes.add(eventCode);
    }

    @Override
    public void logEventAfterSample(MddClientEvent.Code eventCode, int sampleInterval) {
        loggedCodes.add(eventCode);
    }

    @Override
    public ListenableFuture<Void> logMddFileGroupStats(
            AsyncCallable<List<FileGroupStatusWithDetails>> buildFileGroupStats) {
        return immediateFailedFuture(
                new UnsupportedOperationException(
                        "This method is not implemented in the fake yet."));
    }

    @Override
    public void logMddApiCallStats(DataDownloadFileGroupStats fileGroupDetails, Void apiCallStats) {
        throw new UnsupportedOperationException("This method is not implemented in the fake yet.");
    }

    @Override
    public void logMddLibApiResultLog(MddLibApiResultLog mddLibApiResultLog) {
        loggedMddLibApiResultLog.add(mddLibApiResultLog);
    }

    public List<MddLibApiResultLog> getLoggedMddLibApiResultLogs() {
        return loggedMddLibApiResultLog;
    }

    @Override
    public ListenableFuture<Void> logMddStorageStats(
            AsyncCallable<MddStorageStats> buildMddStorageStats) {
        return immediateFailedFuture(
                new UnsupportedOperationException(
                        "This method is not implemented in the fake yet."));
    }

    @Override
    public ListenableFuture<Void> logMddNetworkStats(
            AsyncCallable<MddNetworkStats> buildMddNetworkStats) {
        return immediateFailedFuture(
                new UnsupportedOperationException(
                        "This method is not implemented in the fake yet."));
    }

    @Override
    public void logMddDataDownloadFileExpirationEvent(int eventCode, int count) {
        throw new UnsupportedOperationException("This method is not implemented in the fake yet.");
    }

    @Override
    public void logMddNetworkSavings(
            DataDownloadFileGroupStats fileGroupDetails,
            int code,
            long fullFileSize,
            long downloadedFileSize,
            String fileId,
            int deltaIndex) {
        throw new UnsupportedOperationException("This method is not implemented in the fake yet.");
    }

    @Override
    public void logMddDownloadResult(
            MddDownloadResult.Code code, DataDownloadFileGroupStats fileGroupDetails) {
        throw new UnsupportedOperationException("This method is not implemented in the fake yet.");
    }

    @Override
    public void logMddQueryStats(DataDownloadFileGroupStats fileGroupDetails) {
        loggedMddQueryStats.add(fileGroupDetails);
    }

    @Override
    public void logMddAndroidSharingLog(Void event) {
        throw new UnsupportedOperationException("This method is not implemented in the fake yet.");
    }

    @Override
    public void logMddDownloadLatency(
            DataDownloadFileGroupStats fileGroupStats, MddDownloadLatency downloadLatency) {
        loggedLatencies.put(fileGroupStats, downloadLatency);
    }

    @Override
    public void logMddUsageEvent(DataDownloadFileGroupStats fileGroupDetails, Void usageEventLog) {
        throw new UnsupportedOperationException("This method is not implemented in the fake yet.");
    }

    @Override
    public void logNewConfigReceived(
            DataDownloadFileGroupStats fileGroupDetails, Void newConfigReceivedInfo) {
        loggedNewConfigReceived.put(fileGroupDetails, newConfigReceivedInfo);
    }

    public void reset() {
        loggedCodes.clear();
        loggedLatencies.clear();
        loggedMddQueryStats.clear();
        loggedNewConfigReceived.clear();
        loggedMddLibApiResultLog.clear();
    }

    public ArrayListMultimap<DataDownloadFileGroupStats, Void> getLoggedNewConfigReceived() {
        return loggedNewConfigReceived;
    }

    public List<MddClientEvent.Code> getLoggedCodes() {
        return loggedCodes;
    }

    public ArrayListMultimap<DataDownloadFileGroupStats, MddDownloadLatency> getLoggedLatencies() {
        return loggedLatencies;
    }

    public ArrayList<DataDownloadFileGroupStats> getLoggedMddQueryStats() {
        return loggedMddQueryStats;
    }
}