#include "MainPanel.h"
#include <QSplitter>
#include <QVBoxLayout>
#include <QListWidget>

#include <util/jsonmapper.h>

#include <QDebug>

#include <qtpromise/qpromise.h>
#include <qtpromise/qpromisefuture.h>
#include <qtpromise/qpromisehelpers.h>

#include <QtConcurrent>

#include "widgets/bubbletip.h"
#include "widgets/chatView/chatwindow.h"
#include "widgets/maskoverlay.h"
#include "widgets/userprofilewidget.h"

#include "AvPlayer2/PlayWidget.h"
#include "api/roomapi.h"
#include "appevent.h"
#include "ui/av_recorder.h"

MainPanel::MainPanel(QWidget *parent)
    : QWidget(parent)
    , userProfile(nullptr)
    , chatView(nullptr)
{
    // 初始化防抖定时器
    m_debounceTimer = new QTimer(this);
    m_debounceTimer->setSingleShot(true);
    m_debounceTimer->setInterval(500); // 500ms防抖延迟
    connect(m_debounceTimer, &QTimer::timeout, this, &MainPanel::handleDebouncedPlay);
    // setupUI
    userProfile = new UserProfileWidget(this);
    webSocketClient = new WebSocketClient(this);
    chatView = new ChatWindow(webSocketClient);
    chatView->setMinimumWidth(400);

    QWidget *rightWidget = new QWidget;
    QVBoxLayout *vbox = new QVBoxLayout(rightWidget);
    vbox->setContentsMargins(0, 0, 0, 0);
    vbox->addWidget(userProfile, 0);
    vbox->addWidget(chatView, 1);

    m_roomListWidget = new QListWidget;
    splitter = new QSplitter(Qt::Horizontal, this);
    playerContainer = new QWidget(this);
    splitter->addWidget(m_roomListWidget);
    splitter->addWidget(playerContainer);
    splitter->addWidget(rightWidget);
    splitter->setStretchFactor(0, 10);
    splitter->setStretchFactor(1, 60);
    splitter->setStretchFactor(2, 30);
    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    mainLayout->addWidget(splitter, 1);
    mainLayout->setContentsMargins(0, 0, 0, 0);
    mainLayout->setSpacing(0);
    setLayout(mainLayout);

    // initConnect
    connect(AppEvent::instance(), &AppEvent::connectionStateChanged, this, [this](bool connected) {
        if (userProfile) {
            userProfile->setStatus(connected ? "在线" : "离线");
        }
    });
    connect(m_roomListWidget, &QListWidget::itemDoubleClicked, this, &MainPanel::roomItemChanged);
    connect(userProfile, &UserProfileWidget::logoutClicked, this, &MainPanel::logoutClicked);
    connect(webSocketClient, &WebSocketClient::liveStatus, this, [this](const QString &msg) {
        // 这里可以处理 liveStatus 相关逻辑
        QJsonParseError err;
        QJsonDocument doc = QJsonDocument::fromJson(msg.toUtf8(), &err);
        if (err.error != QJsonParseError::NoError || !doc.isObject()) {
            qDebug() << "[MainPanel] liveStatus: 解析失败" << err.errorString();
            return;
        }
        QJsonObject obj = doc.object();
        int liveStatus = obj.value("liveStatus").toInt(0); // 默认-1
        if (liveStatus == 1) {
            qDebug() << "[MainPanel] liveStatus: 直播中" << chatView;
            if (chatView) {
                const QString id = webSocketClient->roomId();
                
                // 使用防抖机制处理频繁的请求
                m_pendingRoomId = id;
                m_debounceTimer->start(); // 重新开始计时，如果在500ms内再次收到请求，会重置定时器
            }

            // 你的处理逻辑
        } else if (liveStatus == 2) {
            qDebug() << "[MainPanel] liveStatus: 未开播";
            // 你的处理逻辑
        } else {
            qDebug() << "[MainPanel] liveStatus: 未知状态" << liveStatus;
        }
    });
}

MainPanel::~MainPanel()
{
    if (userProfile) {
        delete userProfile;
        userProfile = nullptr;
    }
}
void MainPanel::setRole(const QStringList &roleList)
{
    QWidget *newPlayer = nullptr;
    if (roleList.contains("role.admin")) {
        newPlayer = new AvRecorder(this);
    } else {
        newPlayer = new PlayWidget(this);
    }
    setPlayerWidget(newPlayer);

    // 如果是管理也就是教师 直接过滤当前教师的选项
    if (AppEvent::instance()->hasRole("role.admin")) {
        // roomInfo.ownerId = AppEvent::instance()->userId();
        m_roomListWidget->hide();

    } else {
        m_roomListWidget->show();
    }

    // 设置初始化信息
    const QString &name = AppEvent::instance()->userName();
    userProfile->setUsername(name);
}

void MainPanel::setPushRoomId(const QString &id)
{
    // 推流配置
    if (AvRecorder *avRecorder = qobject_cast<AvRecorder *>(playerWidget)) {
        SettingsPage::Param param;
        param.liveUrl = "rtmp://106.55.186.74:1935/stream/V1";
        param.liveName = id.toStdString();
        avRecorder->setSettings(param);
    }

    // 重新进入房间
    chatView->initWebsocket(id);
}
void MainPanel::setPlayerWidget(QWidget *newPlayer)
{
    if (playerWidget) {
        playerWidget->setParent(nullptr);
        playerWidget->deleteLater();
    }
    playerWidget = newPlayer;
    playerWidget->setParent(playerContainer);
    QLayout *oldLayout = playerContainer->layout();
    if (oldLayout) {
        QLayoutItem *item;
        while ((item = oldLayout->takeAt(0)) != nullptr) {
            if (item->widget())
                item->widget()->setParent(nullptr);
            delete item;
        }
        delete oldLayout;
    }
    QVBoxLayout *vbox = new QVBoxLayout(playerContainer);
    vbox->setContentsMargins(0, 0, 0, 0);
    vbox->addWidget(playerWidget);
}

void MainPanel::roomItemChanged(QListWidgetItem *item)
{
    if (item) {
        const QString id = item->data(Qt::UserRole + 100).value<QString>();

        if (!playerWidget) {
            return;
        }

        // // 推流配置
        // if (AvRecorder *avRecorder = qobject_cast<AvRecorder *>(playerWidget)) {
        //     SettingsPage::Param param;
        //     param.liveUrl = "rtmp://106.55.186.74:1935/stream/V1";
        //     param.liveName = id.toStdString();
        //     avRecorder->setSettings(param);
        // }
        // 拉取视频流程
        if (PlayWidget *playWidget = qobject_cast<PlayWidget *>(playerWidget)) {
            MaskOverlay::instance()->show(nullptr, 0, MaskOverlay::ActiveWindow);

            QFuture<HttpResponse> getRoomFuture = getRoomApi(id);
            QtPromise::QPromise<HttpResponse> roomListPromise = QtPromise::resolve(getRoomFuture);

            roomListPromise
                .then([this, playWidget, id](const HttpResponse &response) {
                    qDebug() << response.code << response.data << response.message;
                    if (response.code != 0) {
                        BubbleTip::showTip(this, response.message, BubbleTip::Top, 3000);
                        return;
                    }
                    RoomInfo roomInfo = JsonMapper::formJsonEx<RoomInfo>(response.data.toObject());

                    qDebug() << "roomInfo.liveStatus.has_value()"
                             << roomInfo.liveStatus.has_value();

                    int status = roomInfo.liveStatus.value_or(0);
                    if (status == 1) {
                        qDebug() << "open" << ("rtmp://106.55.186.74:1935/stream/V1/" + id);
                        playWidget->startToPlay("rtmp://106.55.186.74:1935/stream/V1/" + id);
                    }
                })
                .finally([]() { MaskOverlay::instance()->hide(); });
        }
    }
}

void MainPanel::handleDebouncedPlay()
{
    // 防抖处理后的播放逻辑
    if (m_pendingRoomId.isEmpty() || !chatView) {
        return;
    }
    
    if (PlayWidget *playWidget = qobject_cast<PlayWidget *>(playerWidget)) {
        if (!m_isStartingPlay) {
            m_isStartingPlay = true;
            qDebug() << "[MainPanel] 防抖处理后开始播放:" << m_pendingRoomId;
            playWidget->startToPlay("rtmp://106.55.186.74:1935/stream/V1/" + m_pendingRoomId);
            m_isStartingPlay = false; // 如果 startToPlay 是同步的
        }
    }
    
    // 清空待处理的房间ID
    m_pendingRoomId.clear();
}