#include "DeviceParameterConfigList.h"
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QListWidget>
#include <QPushButton>
#include <QDir>
#include <QFile>
#include <QInputDialog>
#include <QMessageBox>
#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonArray>
#include <QDebug>
#include <QDateTime>
#include <QLabel>
DeviceParameterConfigList::DeviceParameterConfigList(QWidget *parent)
    : QWidget(parent)
    , m_listWidget(nullptr)
    , m_btnAdd(nullptr)
    , m_btnDelete(nullptr)
{
    setupUi();
}

DeviceParameterConfigList::~DeviceParameterConfigList()
{
}

void DeviceParameterConfigList::setupUi()
{
    QVBoxLayout *mainLayout = new QVBoxLayout(this);
    mainLayout->setContentsMargins(0, 0, 0, 0);

    QLabel *ListWidgetName = new QLabel(QStringLiteral(u"设备参数配置列表"));
    mainLayout->addWidget(ListWidgetName);

    m_listWidget = new QListWidget(this);
    mainLayout->addWidget(m_listWidget);

    QHBoxLayout *btnLayout = new QHBoxLayout();
    m_btnAdd = new QPushButton(QStringLiteral(u"添加"), this);
    m_btnDelete = new QPushButton(QStringLiteral(u"删除"), this);
    btnLayout->addWidget(m_btnAdd);
    btnLayout->addWidget(m_btnDelete);
    btnLayout->addStretch();
    mainLayout->addLayout(btnLayout);

    connect(m_listWidget, &QListWidget::itemClicked, this, &DeviceParameterConfigList::onItemClicked);
    connect(m_btnAdd, &QPushButton::clicked, this, &DeviceParameterConfigList::onAddClicked);
    connect(m_btnDelete, &QPushButton::clicked, this, &DeviceParameterConfigList::onDeleteClicked);
}

void DeviceParameterConfigList::loadConfigsFromFolder(const QString &folderPath)
{
    if (folderPath.isEmpty()) {
        m_folderPath = QDir::currentPath() + "/parameterConfig";
    } else {
        m_folderPath = folderPath;
    }

    QDir dir(m_folderPath);
    if (!dir.exists()) {
        dir.mkpath(m_folderPath);
    }

    dir.setFilter(QDir::Files | QDir::NoDotAndDotDot);
    QStringList files = dir.entryList();
    updateList(files);
}

void DeviceParameterConfigList::updateList(const QStringList &fileList)
{
    m_listWidget->clear();
    for (const QString &file : fileList) {
        if (file.endsWith(".json", Qt::CaseInsensitive)) {
            m_listWidget->addItem(file);
        }
    }
}

QString DeviceParameterConfigList::getCurrentFilePath() const
{
    QListWidgetItem *item = m_listWidget->currentItem();
    if (!item) return QString();
    return m_folderPath + "/" + item->text();
}

QString DeviceParameterConfigList::getCurrentFileName() const
{
    QListWidgetItem *item = m_listWidget->currentItem();
    return item ? item->text() : QString();
}

void DeviceParameterConfigList::setCurrentFile(const QString &fileName)
{
    QList<QListWidgetItem*> items = m_listWidget->findItems(fileName, Qt::MatchExactly);
    if (!items.isEmpty()) {
        m_listWidget->setCurrentItem(items.first());
        emit configSelected(getCurrentFilePath());
    }
}

void DeviceParameterConfigList::refresh()
{
    loadConfigsFromFolder(m_folderPath);
}

void DeviceParameterConfigList::onItemClicked(QListWidgetItem *item)
{
    if (item) {
        emit configSelected(m_folderPath + "/" + item->text());
    }
}

void DeviceParameterConfigList::onAddClicked()
{
    bool ok;
    QString fileName = QInputDialog::getText(this, QStringLiteral(u"新建配置"),
                                             QStringLiteral(u"请输入配置文件名（无需后缀）："),
                                             QLineEdit::Normal,
                                             QString("NewConfig_%1").arg(QDateTime::currentDateTime().toString("yyyyMMdd_hhmmss")),
                                             &ok);
    if (!ok || fileName.isEmpty()) return;

    if (!fileName.endsWith(".json", Qt::CaseInsensitive))
        fileName += ".json";

    QString filePath = m_folderPath + "/" + fileName;
    if (QFile::exists(filePath)) {
        QMessageBox::warning(this, QStringLiteral(u"错误"), QStringLiteral(u"文件已存在，请使用其他名称。"));
        return;
    }

    // 发出创建请求，由外部（主窗口）决定默认内容
    emit createNewConfigRequested(fileName);
}

void DeviceParameterConfigList::onDeleteClicked()
{
    QListWidgetItem *currentItem = m_listWidget->currentItem();
    if (!currentItem) {
        QMessageBox::information(this, QStringLiteral(u"提示"), QStringLiteral(u"请先选择要删除的配置文件。"));
        return;
    }

    QString fileName = currentItem->text();
    QString filePath = m_folderPath + "/" + fileName;

    int ret = QMessageBox::question(this, QStringLiteral(u"确认删除"),
                                    QStringLiteral(u"确定要删除文件 \"%1\" 吗？").arg(fileName),
                                    QMessageBox::Yes | QMessageBox::No);
    if (ret != QMessageBox::Yes) return;

    QFile file(filePath);
    if (file.remove()) {
        delete currentItem;
        emit configDeleted(fileName);
        QMessageBox::information(this, QStringLiteral(u"成功"), QStringLiteral(u"文件已删除。"));
    } else {
        QMessageBox::warning(this, QStringLiteral(u"错误"), QStringLiteral(u"无法删除文件：%1").arg(file.errorString()));
    }
}

bool DeviceParameterConfigList::createDefaultConfigFile(const QString &filePath)
{
    // 默认配置内容（与原来保持一致）
    QJsonObject rootObj;
    rootObj["command"] = "SET";
    QJsonArray channelsArray;

    QJsonObject defaultChannel;
    defaultChannel["eTransferModel"] = "eSpecturmMode";
    defaultChannel["iDeviceGain"] = 1;
    defaultChannel["iDeviceGainSelectIndex"] = 1;
    defaultChannel["iSoftGain"] = 3000;
    defaultChannel["dConstTime"] = 45.0;
    defaultChannel["iFormTime"] = 3;
    defaultChannel["iFastChannelTrigerValue"] = 10.0;
    defaultChannel["iChannelNum"] = 1024;
    defaultChannel["iHighVoltage"] = 0;
    defaultChannel["iInputVoltageDesc"] = 0;
    defaultChannel["iCRDivMode"] = 0;
    defaultChannel["iInputSignalPostive"] = 0;
    defaultChannel["iCurrentOffset"] = 0;
    defaultChannel["iMaxEnergy"] = 0;
    defaultChannel["iAMPeakDiv"] = 0;
    defaultChannel["iHVDelt"] = 0;
    defaultChannel["iHVCtrl"] = 0;
    defaultChannel["iGetSpecturmPeirod"] = 1;
    defaultChannel["iTotalMeasureTime"] = 10;
    defaultChannel["iTotalMeasureCount"] = 1;
    defaultChannel["iTrapeTopShitBit"] = 0;
    defaultChannel["iRiseTime"] = 2;
    defaultChannel["iTopTime"] = 2;
    defaultChannel["bICRCorrect"] = false;
    defaultChannel["iCRZAValue"] = 0;
    defaultChannel["iZAEnable"] = 30;
    defaultChannel["reserve"] = QJsonArray();
    defaultChannel["pUserConfigInfo"] = QJsonObject();

    for (int i = 0; i < 32; ++i) {
        channelsArray.append(defaultChannel);
    }
    rootObj["channels"] = channelsArray;

    QJsonDocument doc(rootObj);
    QFile file(filePath);
    if (!file.open(QIODevice::WriteOnly)) {
        return false;
    }
    file.write(doc.toJson());
    file.close();
    return true;
}