#include "avplayerwidget.h"

#include "avopenglwidget.h"

#include "av_player.h"
#include "vframe.h"

AVPlayerWidget::AVPlayerWidget(QWidget *parent)
    : QWidget{parent}
    , m_player(new AVPlayer)
    , m_openglWidget(new AVOpenGLWidget(this))
    , m_isPlaying(false)
    , m_isPaused(false)
{
    // 设置尺寸策略，确保能够正确填充空间
    setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    
    setupUI();
    connectSignals();
    
    // 设置默认音量
    m_player->setVolume(50);
    m_volumeSlider->setValue(50);
    
    // 设置默认测试URL
    m_urlEdit->setText("rtmp://127.0.0.1:1935/stream/V1/stream");
}

AVPlayerWidget::~AVPlayerWidget()
{
    if (m_player) {
        m_player->clearPlayer();
    }
}

void AVPlayerWidget::setupUI()
{
    m_mainLayout = new QVBoxLayout(this);
    m_mainLayout->setContentsMargins(5, 5, 5, 5);  // 减少主布局边距
    m_mainLayout->setSpacing(5);  // 减少组件间距
    
    // 添加OpenGL视频渲染组件
    m_mainLayout->addWidget(m_openglWidget, 1);
    
    // 创建控制面板容器
    QWidget *controlWidget = new QWidget(this);
    controlWidget->setFixedHeight(60);  // 设置控制面板固定高度
    controlWidget->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Fixed);
    
    m_controlLayout = new QHBoxLayout(controlWidget);
    m_controlLayout->setContentsMargins(5, 5, 5, 5);  // 减少控制面板内边距
    m_controlLayout->setSpacing(5);  // 减少控件间距
    
    // URL输入框
    m_urlEdit = new QLineEdit(this);
    m_urlEdit->setPlaceholderText("输入视频文件路径或URL");
    m_urlEdit->setFixedHeight(30);  // 固定高度适应控制面板
    m_urlEdit->setFont(QFont("Arial", 9));
    m_controlLayout->addWidget(m_urlEdit, 2);
    
    // 测试播放按钮
    m_testPlayButton = new QPushButton("测试播放", this);
    m_testPlayButton->setFixedSize(70, 30);  // 固定尺寸
    m_testPlayButton->setFont(QFont("Arial", 9, QFont::Bold));
    m_controlLayout->addWidget(m_testPlayButton);
    
    // 播放控制按钮
    m_playButton = new QPushButton("播放", this);
    m_playButton->setFixedSize(50, 30);  // 固定尺寸
    m_playButton->setFont(QFont("Arial", 9, QFont::Bold));
    
    m_pauseButton = new QPushButton("暂停", this);
    m_pauseButton->setFixedSize(50, 30);  // 固定尺寸
    m_pauseButton->setFont(QFont("Arial", 9, QFont::Bold));
    
    m_stopButton = new QPushButton("停止", this);
    m_stopButton->setFixedSize(50, 30);  // 固定尺寸
    m_stopButton->setFont(QFont("Arial", 9, QFont::Bold));
    
    m_controlLayout->addWidget(m_playButton);
    m_controlLayout->addWidget(m_pauseButton);
    m_controlLayout->addWidget(m_stopButton);
    
    // 音量控制
    QLabel *volumeLabel = new QLabel("音量:", this);
    volumeLabel->setFont(QFont("Arial", 9));
    m_volumeSlider = new QSlider(Qt::Horizontal, this);
    m_volumeSlider->setRange(0, 100);
    m_volumeSlider->setValue(50);
    m_volumeSlider->setFixedSize(100, 20);  // 固定尺寸
    
    m_controlLayout->addWidget(volumeLabel);
    m_controlLayout->addWidget(m_volumeSlider);
    
    // 时间显示
    m_timeLabel = new QLabel("00:00 / 00:00", this);
    m_timeLabel->setFont(QFont("Arial", 9));
    m_timeLabel->setFixedWidth(80);
    m_controlLayout->addWidget(m_timeLabel);
    
    m_mainLayout->addWidget(controlWidget, 0);  // 拉伸因子为0，不占用额外空间
    
    // 设置初始状态
    m_pauseButton->setEnabled(false);
    m_stopButton->setEnabled(false);
}

void AVPlayerWidget::connectSignals()
{
    // 连接AVPlayer信号
    connect(m_player, &AVPlayer::frameChanged, this, &AVPlayerWidget::onFrameChanged, Qt::QueuedConnection);
    connect(m_player, &AVPlayer::AVDurationChanged, this, &AVPlayerWidget::durationChangedSlot);
    connect(m_player, &AVPlayer::AVPtsChanged, this, &AVPlayerWidget::ptsChangedSlot);
    connect(m_player, &AVPlayer::AVTerminate, this, &AVPlayerWidget::terminateSlot, Qt::QueuedConnection);
    
    // 连接UI控件信号
    connect(m_playButton, &QPushButton::clicked, this, &AVPlayerWidget::onPlayButtonClicked);
    connect(m_pauseButton, &QPushButton::clicked, this, &AVPlayerWidget::onPauseButtonClicked);
    connect(m_stopButton, &QPushButton::clicked, this, &AVPlayerWidget::onStopButtonClicked);
    connect(m_testPlayButton, &QPushButton::clicked, this, &AVPlayerWidget::onTestPlayButtonClicked);
    connect(m_volumeSlider, &QSlider::valueChanged, this, &AVPlayerWidget::onVolumeChanged);
}

void AVPlayerWidget::play(const QString &url)
{
    if (!m_player->play(url)) {
        // 提示反馈?
        return;
    }
    m_isPlaying = true;
    m_isPaused = false;
    m_playButton->setEnabled(false);
    m_pauseButton->setEnabled(true);
    m_stopButton->setEnabled(true);
    emit playStateChanged(true);
}

void AVPlayerWidget::stop()
{
    m_player->clearPlayer();
    m_isPlaying = false;
    m_isPaused = false;
    m_playButton->setEnabled(true);
    m_pauseButton->setEnabled(false);
    m_stopButton->setEnabled(false);
    m_openglWidget->clearFrame();
    emit playStateChanged(false);
}

void AVPlayerWidget::pause()
{
    if (m_isPlaying && !m_isPaused) {
        m_player->pause(true);
        m_isPaused = true;
        m_playButton->setText("继续");
        m_playButton->setEnabled(true);
        m_pauseButton->setEnabled(false);
    }
}

void AVPlayerWidget::resume()
{
    if (m_isPlaying && m_isPaused) {
        m_player->pause(false);
        m_isPaused = false;
        m_playButton->setText("播放");
        m_playButton->setEnabled(false);
        m_pauseButton->setEnabled(true);
    }
}

void AVPlayerWidget::onPlayButtonClicked()
{
    if (m_isPaused) {
        resume();
    } else {
        QString url = m_urlEdit->text().trimmed();
        if (!url.isEmpty()) {
            play(url);
        }
    }
}

void AVPlayerWidget::onPauseButtonClicked()
{
    pause();
}

void AVPlayerWidget::onStopButtonClicked()
{
    stop();
}

void AVPlayerWidget::onTestPlayButtonClicked()
{
    // 使用默认测试视频
    QString testUrl = "C:/Users/zhuizhu/Videos/2.mp4";
    m_urlEdit->setText(testUrl);
    play(testUrl);
}

void AVPlayerWidget::onVolumeChanged(int volume)
{
    m_player->setVolume(volume);
}

void AVPlayerWidget::onFrameChanged(QSharedPointer<VideoFrame> frame)
{
    m_openglWidget->onShowYUV(frame);

    // 注意：这里不要释放avFrame，因为Render方法会处理
}

void AVPlayerWidget::ptsChangedSlot(unsigned int pts)
{
    // 更新时间显示
    int seconds = pts / 1000;
    int minutes = seconds / 60;
    seconds = seconds % 60;
    
    QString timeStr = QString("%1:%2").arg(minutes, 2, 10, QChar('0')).arg(seconds, 2, 10, QChar('0'));
    // 这里可以更新时间标签的当前时间部分
}

void AVPlayerWidget::durationChangedSlot(unsigned int duration)
{
    // 更新总时长显示
    int seconds = duration / 1000;
    int minutes = seconds / 60;
    seconds = seconds % 60;
    
    QString durationStr = QString("%1:%2").arg(minutes, 2, 10, QChar('0')).arg(seconds, 2, 10, QChar('0'));
    m_timeLabel->setText(QString("00:00 / %1").arg(durationStr));
}

void AVPlayerWidget::terminateSlot()
{
    stop();
}

// 兼容旧接口实现
void AVPlayerWidget::stopPlay()
{
    stop();
}

void AVPlayerWidget::setPlayRoomId(const QString &id)
{
    // 以当前URL为基准，去掉最后一节后拼接房间ID，避免硬编码服务器地址
    QString base = m_urlEdit->text().trimmed();
    if (base.isEmpty()) {
        base = "rtmp://127.0.0.1:1935/stream/V1/stream";
    }
    int lastSlash = base.lastIndexOf('/');
    QString streamBase = lastSlash > 0 ? base.left(lastSlash) : base;
    QString url = streamBase + "/" + id;
    m_urlEdit->setText(url);
}

void AVPlayerWidget::startPlay()
{
    const QString url = m_urlEdit->text().trimmed();
    if (!url.isEmpty()) {
        play(url);
    }
}