#include "dialogcamera.h"
#include "ui_dialogcamera.h"
#include <QRegularExpression>
#include <QPushButton>
#include <QHeaderView>
#include <QHBoxLayout>
#include "VrLog.h"
#include "VrNetUtils.h"
#include "StyledMessageBox.h"
#include "WheelMeasurePresenter.h"
#include "PathManager.h"

DialogCamera::DialogCamera(QWidget *parent) :
    QDialog(parent),
    ui(new Ui::DialogCamera)
{
    ui->setupUi(this);

    // 隐藏标题栏
    // setWindowFlags(Qt::FramelessWindowHint);

    // 初始化表格
    InitTable();

    // 加载已有的相机配置
    LoadExistingCameras();

    // 刷新显示
    RefreshCameraList();
}

DialogCamera::~DialogCamera()
{
    delete ui;
}

void DialogCamera::SetPresenter(WheelMeasurePresenter* presenter)
{
    m_presenter = presenter;
    // 重新加载已有的相机配置
    LoadExistingCameras();
    // 刷新显示
    RefreshCameraList();
}

void DialogCamera::InitTable()
{
    // 设置表格属性
    ui->tableWidget_cameras->setColumnCount(4);
    ui->tableWidget_cameras->setHorizontalHeaderLabels({"编号", "名称", "IP地址", "操作"});

    // 设置表头样式（白色字体）
    ui->tableWidget_cameras->horizontalHeader()->setStyleSheet(
        "QHeaderView::section {"
        "   color: rgb(239, 241, 245);"
        "   background-color: rgb(50, 52, 58);"
        "   padding: 8px;"
        "   border: none;"
        "   font-size: 14px;"
        "}"
    );

    // 设置列宽模式：编号和操作固定宽度，名称和IP拉伸填充
    QHeaderView* header = ui->tableWidget_cameras->horizontalHeader();
    header->setSectionResizeMode(0, QHeaderView::Fixed);      // 编号列固定
    header->setSectionResizeMode(1, QHeaderView::Stretch);    // 名称列拉伸
    header->setSectionResizeMode(2, QHeaderView::Stretch);    // IP地址列拉伸
    header->setSectionResizeMode(3, QHeaderView::Fixed);      // 操作列固定

    // 设置固定列的宽度
    ui->tableWidget_cameras->setColumnWidth(0, 60);   // 编号列
    ui->tableWidget_cameras->setColumnWidth(3, 200);  // 操作列（上移、下移、删除）

    // 设置表格样式
    ui->tableWidget_cameras->horizontalHeader()->setStretchLastSection(false);
    ui->tableWidget_cameras->verticalHeader()->setVisible(false);
    ui->tableWidget_cameras->setEditTriggers(QAbstractItemView::NoEditTriggers);
    ui->tableWidget_cameras->setSelectionBehavior(QAbstractItemView::SelectRows);
    ui->tableWidget_cameras->setSelectionMode(QAbstractItemView::SingleSelection);

    // 设置字体大小
    QFont font = ui->tableWidget_cameras->font();
    font.setPointSize(14);
    ui->tableWidget_cameras->setFont(font);
}

void DialogCamera::LoadExistingCameras()
{
    m_cameraConfigs.clear();

    // 从Presenter获取配置
    if (m_presenter) {
        WheelMeasureConfigResult* configResult = m_presenter->GetConfigResult();
        if (configResult) {
            // 从cameras加载相机配置
            for (const auto& camera : configResult->cameras) {
                m_cameraConfigs.push_back(camera);
            }
            LOG_INFO("Loaded %zu existing cameras from config\n", m_cameraConfigs.size());
        } else {
            LOG_WARNING("ConfigResult is null\n");
        }
    } else {
        LOG_WARNING("Presenter is not set\n");
    }
}

void DialogCamera::RefreshCameraList()
{
    // 清空表格
    ui->tableWidget_cameras->setRowCount(0);

    // 填充数据
    for (size_t i = 0; i < m_cameraConfigs.size(); ++i) {
        int row = ui->tableWidget_cameras->rowCount();
        ui->tableWidget_cameras->insertRow(row);

        // 编号列
        QTableWidgetItem* indexItem = new QTableWidgetItem(QString::number(m_cameraConfigs[i].cameraIndex));
        indexItem->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget_cameras->setItem(row, 0, indexItem);

        // 名称列
        QTableWidgetItem* nameItem = new QTableWidgetItem(QString::fromStdString(m_cameraConfigs[i].name));
        nameItem->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget_cameras->setItem(row, 1, nameItem);

        // IP地址列
        QTableWidgetItem* ipItem = new QTableWidgetItem(QString::fromStdString(m_cameraConfigs[i].cameraIP));
        ipItem->setTextAlignment(Qt::AlignCenter);
        ui->tableWidget_cameras->setItem(row, 2, ipItem);

        // 操作列 - 上移、下移、删除按钮
        QWidget* btnContainer = new QWidget();
        QHBoxLayout* btnLayout = new QHBoxLayout(btnContainer);
        btnLayout->setContentsMargins(2, 2, 2, 2);
        btnLayout->setSpacing(4);

        // 上移按钮
        QPushButton* upBtn = new QPushButton("↑");
        upBtn->setFixedSize(40, 35);
        upBtn->setStyleSheet(
            "QPushButton {"
            "   color: rgb(221, 225, 233);"
            "   background-color: rgb(60, 120, 180);"
            "   border: none;"
            "   border-radius: 3px;"
            "   font-size: 16px;"
            "   font-weight: bold;"
            "}"
            "QPushButton:hover {"
            "   background-color: rgb(80, 140, 200);"
            "}"
            "QPushButton:pressed {"
            "   background-color: rgb(40, 100, 160);"
            "}"
            "QPushButton:disabled {"
            "   background-color: rgb(80, 80, 80);"
            "   color: rgb(120, 120, 120);"
            "}"
        );
        upBtn->setProperty("row", row);
        upBtn->setEnabled(row > 0);  // 第一行禁用上移
        connect(upBtn, &QPushButton::clicked, this, &DialogCamera::onMoveUpClicked);

        // 下移按钮
        QPushButton* downBtn = new QPushButton("↓");
        downBtn->setFixedSize(40, 35);
        downBtn->setStyleSheet(
            "QPushButton {"
            "   color: rgb(221, 225, 233);"
            "   background-color: rgb(60, 120, 180);"
            "   border: none;"
            "   border-radius: 3px;"
            "   font-size: 16px;"
            "   font-weight: bold;"
            "}"
            "QPushButton:hover {"
            "   background-color: rgb(80, 140, 200);"
            "}"
            "QPushButton:pressed {"
            "   background-color: rgb(40, 100, 160);"
            "}"
            "QPushButton:disabled {"
            "   background-color: rgb(80, 80, 80);"
            "   color: rgb(120, 120, 120);"
            "}"
        );
        downBtn->setProperty("row", row);
        downBtn->setEnabled(row < static_cast<int>(m_cameraConfigs.size()) - 1);  // 最后一行禁用下移
        connect(downBtn, &QPushButton::clicked, this, &DialogCamera::onMoveDownClicked);

        // 删除按钮
        QPushButton* deleteBtn = new QPushButton("删除");
        deleteBtn->setFixedSize(60, 35);
        deleteBtn->setStyleSheet(
            "QPushButton {"
            "   color: rgb(221, 225, 233);"
            "   background-color: rgb(200, 50, 50);"
            "   border: none;"
            "   border-radius: 3px;"
            "   padding: 5px 10px;"
            "}"
            "QPushButton:hover {"
            "   background-color: rgb(220, 70, 70);"
            "}"
            "QPushButton:pressed {"
            "   background-color: rgb(180, 30, 30);"
            "}"
        );
        deleteBtn->setProperty("row", row);
        connect(deleteBtn, &QPushButton::clicked, this, &DialogCamera::onDeleteCameraClicked);

        btnLayout->addWidget(upBtn);
        btnLayout->addWidget(downBtn);
        btnLayout->addWidget(deleteBtn);
        ui->tableWidget_cameras->setCellWidget(row, 3, btnContainer);

        // 设置行高
        ui->tableWidget_cameras->setRowHeight(row, 45);
    }

    // 更新添加按钮状态
    UpdateAddButtonState();

    LOG_DEBUG("Refreshed camera list, total: %zu cameras\n", m_cameraConfigs.size());
}

void DialogCamera::on_btn_add_camera_clicked()
{
    QString name = ui->lineEdit_name->text().trimmed();
    QString ip = ui->lineEdit_ip->text().trimmed();
    LOG_DEBUG("ADD Camera: name=%s, ip=%s\n", name.toStdString().c_str(), ip.toStdString().c_str());

    if (AddCamera(name, ip)) {
        // 清空输入框
        ui->lineEdit_name->clear();
        ui->lineEdit_ip->clear();

        // 刷新显示
        RefreshCameraList();

        LOG_INFO("Camera added successfully: %s (%s)\n", name.toStdString().c_str(), ip.toStdString().c_str());
    }
}

bool DialogCamera::AddCamera(const QString& name, const QString& ip)
{
    // 检查是否已达到最大数量
    if (static_cast<int>(m_cameraConfigs.size()) >= MAX_CAMERAS) {
        StyledMessageBox::warning(this, "限制", QString("最多只能添加%1个相机！").arg(MAX_CAMERAS));
        return false;
    }

    // 检查名称是否为空
    if (name.isEmpty()) {
        StyledMessageBox::warning(this, "错误", "请输入相机名称！");
        return false;
    }

    // 验证IP格式
    bool bValid = ValidateIPAddress(ip);
    LOG_DEBUG("ValidateIPAddress ret: %d\n", bValid);
    if (!bValid) {
        StyledMessageBox::warning(this, "错误", "IP地址格式不正确！\n格式应为: xxx.xxx.xxx.xxx");
        return false;
    }

    // 检查IP是否已存在
    for (const auto& config : m_cameraConfigs) {
        if (config.cameraIP == ip.toStdString()) {
            StyledMessageBox::warning(this, "错误", "该IP地址已存在！");
            return false;
        }
    }

    // 添加到列表
    WheelCameraParam camera;
    camera.cameraIndex = static_cast<int>(m_cameraConfigs.size()) + 1;
    camera.name = name.toStdString();
    camera.cameraIP = ip.toStdString();
    camera.enabled = true;
    m_cameraConfigs.push_back(camera);

    return true;
}

void DialogCamera::onDeleteCameraClicked()
{
    QPushButton* btn = qobject_cast<QPushButton*>(sender());
    if (!btn) return;

    int row = btn->property("row").toInt();

    // 确认删除
    QMessageBox::StandardButton reply = StyledMessageBox::question(
        this,
        "确认删除",
        QString("确定要删除相机 %1 吗？").arg(row + 1),
        QMessageBox::Yes | QMessageBox::No
    );

    if (reply == QMessageBox::Yes) {
        RemoveCamera(row);
        RefreshCameraList();
        LOG_INFO("Camera %d deleted\n", row + 1);
    }
}

void DialogCamera::onMoveUpClicked()
{
    QPushButton* btn = qobject_cast<QPushButton*>(sender());
    if (!btn) return;

    int row = btn->property("row").toInt();
    if (row <= 0 || row >= static_cast<int>(m_cameraConfigs.size())) {
        return;
    }

    // 交换当前行和上一行
    std::swap(m_cameraConfigs[row], m_cameraConfigs[row - 1]);

    // 重新分配编号
    for (size_t i = 0; i < m_cameraConfigs.size(); ++i) {
        m_cameraConfigs[i].cameraIndex = static_cast<int>(i) + 1;
    }

    // 刷新显示
    RefreshCameraList();
    LOG_INFO("Camera moved up: row %d -> %d\n", row + 1, row);
}

void DialogCamera::onMoveDownClicked()
{
    QPushButton* btn = qobject_cast<QPushButton*>(sender());
    if (!btn) return;

    int row = btn->property("row").toInt();
    if (row < 0 || row >= static_cast<int>(m_cameraConfigs.size()) - 1) {
        return;
    }

    // 交换当前行和下一行
    std::swap(m_cameraConfigs[row], m_cameraConfigs[row + 1]);

    // 重新分配编号
    for (size_t i = 0; i < m_cameraConfigs.size(); ++i) {
        m_cameraConfigs[i].cameraIndex = static_cast<int>(i) + 1;
    }

    // 刷新显示
    RefreshCameraList();
    LOG_INFO("Camera moved down: row %d -> %d\n", row + 1, row + 2);
}

void DialogCamera::RemoveCamera(int row)
{
    if (row >= 0 && row < static_cast<int>(m_cameraConfigs.size())) {
        m_cameraConfigs.erase(m_cameraConfigs.begin() + row);

        // 重新分配编号
        for (size_t i = 0; i < m_cameraConfigs.size(); ++i) {
            m_cameraConfigs[i].cameraIndex = static_cast<int>(i) + 1;
        }
    }
}

void DialogCamera::on_btn_save_clicked()
{
    if (m_cameraConfigs.empty()) {
        StyledMessageBox::warning(this, "提示", "请至少添加一个相机！");
        return;
    }

    // 保存配置
    if (SaveConfigToFile()) {
        StyledMessageBox::information(this, "成功", "相机配置已保存！\n需要重启应用才能生效。");
        emit configSaved();
        accept();
    } else {
        StyledMessageBox::warning(this, "失败", "保存配置失败！");
    }
}

void DialogCamera::on_btn_cancel_clicked()
{
    reject();
}

bool DialogCamera::ValidateIPAddress(const QString& ip)
{
    // 清理输入：去除首尾空白字符
    QString cleanIp = ip.trimmed();

    if (cleanIp.isEmpty()) {
        return false;
    }

    // 转换为C字符串
    QByteArray ipBytes = cleanIp.toLatin1();
    const char* ipStr = ipBytes.constData();

    // 使用 VrNetUtils 提供的 IP 验证函数
    bool isValid = CVrNetUtils::IsValidIP(ipStr);

    if (isValid) {
        LOG_INFO("IP validation successful: %s\n", ipStr);
    } else {
        LOG_WARNING("IP validation failed: %s\n", ipStr);
    }

    return isValid;
}

void DialogCamera::UpdateAddButtonState()
{
    // 如果已达到最大数量，禁用添加按钮
    bool canAdd = static_cast<int>(m_cameraConfigs.size()) < MAX_CAMERAS;
    ui->btn_add_camera->setEnabled(canAdd);

    if (!canAdd) {
        ui->lineEdit_name->setEnabled(false);
        ui->lineEdit_ip->setEnabled(false);
        ui->lineEdit_name->setPlaceholderText("已达到最大数量");
        ui->lineEdit_ip->setPlaceholderText("已达到最大数量");
    } else {
        ui->lineEdit_name->setEnabled(true);
        ui->lineEdit_ip->setEnabled(true);
        ui->lineEdit_name->setPlaceholderText("例如: 相机1");
        ui->lineEdit_ip->setPlaceholderText("例如: 192.168.1.100");
    }
}

bool DialogCamera::SaveConfigToFile()
{
    if (!m_presenter) {
        LOG_ERROR("Presenter is not set, cannot save configuration\n");
        return false;
    }

    try {
        WheelMeasureConfigResult* configResult = m_presenter->GetConfigResult();
        IVrWheelMeasureConfig* vrConfig = m_presenter->GetConfig();

        if (!configResult || !vrConfig) {
            LOG_ERROR("ConfigResult or IVrWheelMeasureConfig is null\n");
            return false;
        }

        // 更新ConfigResult中的cameras
        configResult->cameras.clear();
        for (const auto& camera : m_cameraConfigs) {
            configResult->cameras.push_back(camera);
            LOG_INFO("  Camera %d: %s (IP: %s)\n",
                     camera.cameraIndex,
                     camera.name.c_str(),
                     camera.cameraIP.c_str());
        }

        // 保存配置到文件
        std::string configFilePath = PathManager::GetInstance().GetConfigFilePath().toStdString();
        bool saveResult = vrConfig->SaveConfig(configFilePath, *configResult);

        if (saveResult) {
            LOG_INFO("Camera configuration saved successfully to: %s\n", configFilePath.c_str());
        } else {
            LOG_ERROR("Failed to save camera configuration to file\n");
        }

        return saveResult;

    } catch (const std::exception& e) {
        LOG_ERROR("Exception while saving camera configuration: %s\n", e.what());
        return false;
    } catch (...) {
        LOG_ERROR("Unknown exception while saving camera configuration\n");
        return false;
    }
}

std::vector<WheelCameraParam> DialogCamera::GetCameraConfigs() const
{
    return m_cameraConfigs;
}