/*
 * Copyright (C) 2016 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.
 */

package com.android.tv.dvr;

import android.test.MoreAsserts;

import com.android.tv.testing.FakeClock;
import com.android.tv.testing.dvr.RecordingTestUtils;

import junit.framework.TestCase;

import java.util.concurrent.TimeUnit;

/**
 * Tests for {@link ScheduledProgramReaper}.
 */
public class ScheduledProgramReaperTest extends TestCase {
    public static final int CHANNEL_ID = 273;
    public static final long DURATION = TimeUnit.HOURS.toMillis(1);

    private ScheduledProgramReaper mReaper;
    private FakeClock mFakeClock;
    private DvrDataManagerInMemoryImpl mDvrDataManager;
    private ScheduledRecording mScheduledRecordingDay1;


    @Override
    protected void setUp() throws Exception {
        super.setUp();
        mFakeClock = FakeClock.createWithTimeOne();
        mDvrDataManager = new DvrDataManagerInMemoryImpl(null, mFakeClock);
        mReaper = new ScheduledProgramReaper(mDvrDataManager, mFakeClock);
    }


    public void testRun_noRecordings() {
        MoreAsserts.assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings());
        mReaper.run();
        MoreAsserts.assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings());
    }

    public void testRun_oneRecordingsTomorrow() {
        ScheduledRecording recording = addNewScheduledRecordingForTomorrow();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
        mReaper.run();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
    }

    public void testRun_oneRecordingsStarted() {
        ScheduledRecording recording = addNewScheduledRecordingForTomorrow();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
        mFakeClock.increment(TimeUnit.DAYS);
        mReaper.run();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
    }

    public void testRun_oneRecordingsFinished() {
        ScheduledRecording recording = addNewScheduledRecordingForTomorrow();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
        mFakeClock.increment(TimeUnit.DAYS);
        mFakeClock.increment(TimeUnit.MINUTES, 2);
        mReaper.run();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
    }

    public void testRun_oneRecordingsExpired() {
        ScheduledRecording recording = addNewScheduledRecordingForTomorrow();
        MoreAsserts
                .assertContentsInAnyOrder(mDvrDataManager.getAllScheduledRecordings(), recording);
        mFakeClock.increment(TimeUnit.DAYS, 1 + ScheduledProgramReaper.DAYS);
        mFakeClock.increment(TimeUnit.MILLISECONDS, DURATION);
        // After the cutoff and enough so we can see on the clock
        mFakeClock.increment(TimeUnit.SECONDS, 1);

        mReaper.run();
        MoreAsserts.assertContentsInAnyOrder(
                "Recordings after reaper at " + com.android.tv.util.Utils
                        .toIsoDateTimeString(mFakeClock.currentTimeMillis()),
                mDvrDataManager.getAllScheduledRecordings());
    }

    private ScheduledRecording addNewScheduledRecordingForTomorrow() {
        long startTime = mFakeClock.currentTimeMillis() + TimeUnit.DAYS.toMillis(1);
        return RecordingTestUtils.addScheduledRecording(mDvrDataManager, CHANNEL_ID, startTime,
                startTime + DURATION);
    }
}