/*
 * Copyright (c) 2013, Google Inc. All rights reserved.
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 * modification, are permitted provided that the following conditions are
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 *
 *     * Redistributions of source code must retain the above copyright
 * notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above
 * copyright notice, this list of conditions and the following disclaimer
 * in the documentation and/or other materials provided with the
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 * contributors may be used to endorse or promote products derived from
 * this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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#include "config.h"
#include "core/animation/Player.h"

#include "core/animation/DocumentTimeline.h"
#include "core/dom/Document.h"
#include "core/dom/QualifiedName.h"
#include "weborigin/KURL.h"
#include <gtest/gtest.h>

using namespace WebCore;

namespace {

class PlayerTest : public ::testing::Test {
protected:
    virtual void SetUp()
    {
        document = Document::create();
        timeline = DocumentTimeline::create(document.get());
        player = Player::create(timeline.get(), 0);
        timeline->setZeroTimeAsPerfTime(0);
    }

    bool updateTimeline(double time)
    {
        timeline->serviceAnimations(time);
        // The timeline does not know about our player, so we have to explicitly call update().
        return player->update();
    }

    RefPtr<Document> document;
    RefPtr<DocumentTimeline> timeline;
    RefPtr<Player> player;
};

TEST_F(PlayerTest, InitialState)
{
    EXPECT_EQ(0, timeline->currentTime());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(1, player->playbackRate());
    EXPECT_EQ(0, player->startTime());
    EXPECT_EQ(0, player->timeDrift());
}

TEST_F(PlayerTest, CreatePlayerAfterTimelineStarted)
{
    updateTimeline(1234);
    EXPECT_EQ(1234, timeline->currentTime());
    RefPtr<Player> player = Player::create(timeline.get(), 0);
    EXPECT_EQ(1234, player->startTime());
    EXPECT_EQ(0, player->currentTime());
}

TEST_F(PlayerTest, PauseUnpause)
{
    updateTimeline(200);
    player->setPaused(true);
    EXPECT_TRUE(player->paused());
    EXPECT_EQ(200, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());

    updateTimeline(400);
    player->setPaused(false);
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(200, player->currentTime());
    EXPECT_EQ(200, player->timeDrift());

    updateTimeline(600);
    EXPECT_EQ(400, player->currentTime());
    EXPECT_EQ(200, player->timeDrift());
}

TEST_F(PlayerTest, PauseBeforeTimelineStarted)
{
    player->setPaused(true);
    EXPECT_TRUE(player->paused());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());

    player->setPaused(false);
    EXPECT_FALSE(player->paused());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());

    player->setPaused(true);
    updateTimeline(100);
    EXPECT_TRUE(player->paused());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(100, player->timeDrift());

    player->setPaused(false);
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(100, player->timeDrift());
}

TEST_F(PlayerTest, SetCurrentTime)
{
    updateTimeline(0);
    player->setCurrentTime(250);
    EXPECT_EQ(250, player->currentTime());
    EXPECT_EQ(-250, player->timeDrift());
}

TEST_F(PlayerTest, SetCurrentTimeBeforeTimelineStarted)
{
    player->setCurrentTime(250);
    EXPECT_EQ(250, player->currentTime());
    EXPECT_EQ(-250, player->timeDrift());

    updateTimeline(0);
    EXPECT_EQ(250, player->currentTime());
}

TEST_F(PlayerTest, SetPlaybackRate)
{
    updateTimeline(0);
    player->setPlaybackRate(2);
    EXPECT_EQ(2, player->playbackRate());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());

    updateTimeline(100);
    EXPECT_EQ(200, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());
}

TEST_F(PlayerTest, SetPlaybackRateBeforeTimelineStarted)
{
    player->setPlaybackRate(2);
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());

    updateTimeline(100);
    EXPECT_EQ(200, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());
}

TEST_F(PlayerTest, SetPlaybackRateWhilePaused)
{
    updateTimeline(100);
    player->setPaused(true);
    player->setPlaybackRate(2);
    EXPECT_EQ(100, player->currentTime());
    EXPECT_EQ(100, player->timeDrift());

    updateTimeline(200);
    player->setPaused(false);
    EXPECT_EQ(100, player->currentTime());
    EXPECT_EQ(300, player->timeDrift());

    updateTimeline(250);
    EXPECT_EQ(200, player->currentTime());
    EXPECT_EQ(300, player->timeDrift());
}

TEST_F(PlayerTest, SetPlaybackRateNaN)
{
    updateTimeline(0);
    player->setPlaybackRate(nullValue());
    EXPECT_TRUE(isNull(player->playbackRate()));
    EXPECT_TRUE(isNull(player->currentTime()));
    EXPECT_TRUE(isNull(player->timeDrift()));

    updateTimeline(100);
    EXPECT_TRUE(isNull(player->currentTime()));
    EXPECT_TRUE(isNull(player->timeDrift()));
}

TEST_F(PlayerTest, SetPlaybackRateInfinity)
{
    updateTimeline(0);
    player->setPlaybackRate(std::numeric_limits<double>::infinity());
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->playbackRate());
    EXPECT_TRUE(isNull(player->currentTime()));
    EXPECT_TRUE(isNull(player->timeDrift()));

    updateTimeline(100);
    EXPECT_TRUE(isNull(player->currentTime()));
    EXPECT_TRUE(isNull(player->timeDrift()));
}

TEST_F(PlayerTest, SetPlaybackRateMax)
{
    updateTimeline(0);
    player->setPlaybackRate(std::numeric_limits<double>::max());
    EXPECT_EQ(std::numeric_limits<double>::max(), player->playbackRate());
    EXPECT_EQ(0, player->currentTime());
    EXPECT_EQ(0, player->timeDrift());

    updateTimeline(100);
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->currentTime());
}

TEST_F(PlayerTest, SetCurrentTimeNan)
{
    updateTimeline(0);
    player->setCurrentTime(nullValue());
    EXPECT_TRUE(isNull(player->currentTime()));
    EXPECT_TRUE(isNull(player->timeDrift()));

    updateTimeline(100);
    EXPECT_TRUE(isNull(player->currentTime()));
    EXPECT_TRUE(isNull(player->timeDrift()));
}

TEST_F(PlayerTest, SetCurrentTimeInfinity)
{
    updateTimeline(0);
    player->setCurrentTime(std::numeric_limits<double>::infinity());
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->currentTime());
    EXPECT_EQ(-std::numeric_limits<double>::infinity(), player->timeDrift());

    updateTimeline(100);
    EXPECT_EQ(std::numeric_limits<double>::infinity(), player->currentTime());
    EXPECT_EQ(-std::numeric_limits<double>::infinity(), player->timeDrift());
}

TEST_F(PlayerTest, SetCurrentTimeMax)
{
    updateTimeline(0);
    player->setCurrentTime(std::numeric_limits<double>::max());
    EXPECT_EQ(std::numeric_limits<double>::max(), player->currentTime());
    EXPECT_EQ(-std::numeric_limits<double>::max(), player->timeDrift());

    updateTimeline(100);
    EXPECT_EQ(std::numeric_limits<double>::max(), player->currentTime());
    EXPECT_EQ(-std::numeric_limits<double>::max(), player->timeDrift());
}

}