#include "tapi.h"
#include "appevent.h"
#include "qcoreapplication.h"
#include "qglobal.h"
#include "qjsonobject.h"
#include "qobject.h"

#include <functional>
#include <optional>

#include <QApplication>
#include <QFile>
#include <QFileInfo>
#include <QHttpMultiPart>
#include <QJsonArray>
#include <QJsonDocument>
#include <QJsonObject>
#include <QNetworkReply>
#include <QUrlQuery>

#include <QMessageBox>

#include <QCoreApplication>

struct Tr
{
    Q_DECLARE_TR_FUNCTIONS(TeacherServer)
};

#include "api/tloginapi.h"
namespace TC {
// 创建一个映射来存储错误码和对应的信息
static QMap<RequestCode, QString> errorMessages
    = {{RequestCode::OK, Tr::tr("OK")},
       {RequestCode::GeneralServerError, Tr::tr("General Server Error")},
       {RequestCode::InvalidRequest, Tr::tr("Invalid Request")},
       {RequestCode::TokenExpired, Tr::tr("Token Expired")},
       {RequestCode::DatabaseError, Tr::tr("Database Error")},
       {RequestCode::UsernameError, Tr::tr("Username Error")},
       {RequestCode::InvalidPhoneFormat, Tr::tr("Invalid Phone Format")},
       {RequestCode::PasswordRequirementsNotMet, Tr::tr("Password Requirements Not Met")},
       {RequestCode::PhoneAlreadyRegistered, Tr::tr("Phone Already Registered")},
       {RequestCode::IncorrectCredentials, Tr::tr("Incorrect Credentials")},
       {RequestCode::GetPhoneCodeError, Tr::tr("Get Phone Code Error")},
       {RequestCode::PhoneCodeExists, Tr::tr("Phone Code Exists")},
       {RequestCode::PhoneCodeNotFound, Tr::tr("Phone Code Not Found")},
       {RequestCode::CorrectVerificationCode, Tr::tr("Correct Verification Code")},
       {RequestCode::UpdateLoginPasswordFailed, Tr::tr("Update Login Password Failed")},
       {RequestCode::RealNameVerificationFailed, Tr::tr("Real Name Verification Failed")},
       {RequestCode::VIPExpirationTimeFailed, Tr::tr("VIP Expiration Time Failed")}};

static QString base_url("http://exam.stem993.cn");

static const QLatin1String scCode("code");
static const QLatin1String scMessage("message");
static const QLatin1String scData("data");

// 响应拦截
static bool InterceptorsResponse(QNetworkReply *reply, QJsonValue &data)
{
    if (reply->error() == QNetworkReply::NoError) {
        const QByteArray allData = reply->readAll();

        QJsonParseError jsonError;
        QJsonDocument jsonDoc = QJsonDocument::fromJson(allData, &jsonError);
        if (jsonError.error != QJsonParseError::NoError) {
            qDebug() << data;
            return false;
        }
#ifdef QT_DEBUG
        qDebug() << QString::fromUtf8(jsonDoc.toJson());
#endif
        if (jsonDoc.isObject()) {
            const QJsonObject &object = jsonDoc.object();
            if (object.contains(scCode)) {
                int code = object.value(scCode).toInt();
                if (code != 0) {
                    // RequestCode requestCode = static_cast<RequestCode>(code);
                    const QWidgetList widgetList = QApplication::topLevelWidgets();
                    QWidget *parentWidget = nullptr;
                    if (!widgetList.isEmpty()) {
                        parentWidget = widgetList.first();
                    }
                    // 获取当前活动窗口
                    QMessageBox::critical(parentWidget,
                                          Tr::tr("Error"),
                                          object[scMessage].toString());
                    // if (errorMessages.contains(requestCode)) {
                    //     //Core::MessageManager::writeFlashing(errorMessages[requestCode]);
                    // } else {
                    //     //Core::MessageManager::writeFlashing(Tr::tr("unknown error"));
                    // }
                    return false;
                }
            }
            if (object.contains(scMessage)) {
                const QString &message = object.value(scMessage).toString();
                // Core::MessageManager::writeFlashing(message);
            }
            if (object.contains(scData)) {
                data = object.value(scData);
            }
        }
        return true;
    } else if (reply->error() == QNetworkReply::InternalServerError) { //权限错误
        qDebug() << "0" << reply->error();
        AppEvent::instance()->setJwtToken(QString());
        QWidget *parentWidget = QApplication::topLevelWidgets().first();
        QMessageBox::critical(parentWidget, Tr::tr("Server Error"), reply->errorString());
        return false;
    } else { //其他错误
        AppEvent::instance()->setJwtToken(QString());
        qDebug() << "1" << reply->error();
        QWidget *parentWidget = QApplication::topLevelWidgets().first();
        // 获取当前活动窗口
        QMessageBox::critical(parentWidget, Tr::tr("Server Error"), reply->errorString());
        // Core::MessageManager::writeFlashing(reply->errorString());
        return false;
    }
    return false;
}

static bool InterceptorsResponse2(QNetworkReply *reply, QJsonValue &data)
{
    if (reply->error() == QNetworkReply::NoError) {
        const QByteArray allData = reply->readAll();

        QJsonParseError jsonError;
        QJsonDocument jsonDoc = QJsonDocument::fromJson(allData, &jsonError);
        if (jsonError.error != QJsonParseError::NoError) {
            qDebug() << data;
            return false;
        }
#ifdef QT_DEBUG
        qDebug() << QString::fromUtf8(jsonDoc.toJson());
#endif
        if (jsonDoc.isObject()) {
            const QJsonObject &object = jsonDoc.object();

            data = object;
            // if (object.contains(scCode)) {
            //     int code = object.value(scCode).toInt();
            //     if (code != 0) {
            //         return false;
            //     }
            // }
            // if (object.contains(scMessage)) {
            //     const QString &message = object.value(scMessage).toString();
            //     // Core::MessageManager::writeFlashing(message);
            // }
            // if (object.contains(scData)) {
            //     data = object.value(scData);
            // }
        }
        return true;
    } else if (reply->error() == QNetworkReply::InternalServerError) { //权限错误
        qDebug() << "0" << reply->error();
        AppEvent::instance()->setJwtToken(QString());
        return false;
    } else { //其他错误
        qDebug() << reply->error() << reply->errorString();
        AppEvent::instance()->setJwtToken(QString());
        return false;
    }
    return false;
}
}; // namespace TC

namespace TC {

static NetworkAccessManager *namInstance = nullptr;

void cleanupNetworkAccessManager()
{
    delete namInstance;
    namInstance = nullptr;
}

NetworkAccessManager *NetworkAccessManager::instance()
{
    if (!namInstance) {
        namInstance = new NetworkAccessManager;
        qAddPostRoutine(cleanupNetworkAccessManager);
    }
    return namInstance;
}

NetworkAccessManager::NetworkAccessManager(QObject *parent)
    : QNetworkAccessManager(parent)
{
    // const QString ip = AppEvent::instance()->configValue("serverIP").toString();
    // const QString port = AppEvent::instance()->configValue("serverPort").toString();
    // base_url = QString("http://%1:%2").arg(ip).arg(port);
}

QNetworkReply *NetworkAccessManager::createRequest(Operation op,
                                                   const QNetworkRequest &request,
                                                   QIODevice *outgoingData)
{
    QString agentStr = QString::fromLatin1("%1/%2 (QNetworkAccessManager %3; %4; %5; %6 bit)")
                           .arg(QCoreApplication::applicationName(),
                                QCoreApplication::applicationVersion(),
                                QLatin1String(qVersion()),
                                QSysInfo::prettyProductName(),
                                QLocale::system().name())
                           .arg(QSysInfo::WordSize);
    QNetworkRequest req(request);
    req.setRawHeader("User-Agent", agentStr.toLatin1());

    // QHttpMultiPartIODevice *multiPart = dynamic_cast<QHttpMultiPartIODevice *>(outgoingData);

    // if (multiPart) {
    //     // req.setHeader(QNetworkRequest::ContentTypeHeader, "multipart");
    // } else
    {
        req.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");
    }

    const QUrl &url = request.url();
    const QString urlPath = url.path();
    qDebug() << url;
    //设置白名单
    if (urlPath.indexOf(RefreshToken().url) >= 0 || urlPath.indexOf(Login().url) >= 0) {
    } else {
        //需要刷新token
        // qDebug() << "RefreshToken" << urlPath;
        if (AppEvent::instance()->isRefreshToken()) {
            RefreshToken().get();
        }
    }

    //这里考虑处理 JWT 数据
    const QString &token = AppEvent::instance()->jwtToken();
    // 加个事件校验 防止token 失效导致异常
    if (!token.isEmpty()) {
        req.setRawHeader("Authorization", "Bearer " + token.toUtf8());
    }

    return QNetworkAccessManager::createRequest(op, req, outgoingData);
}

//

std::optional<QJsonValue> sendRequest(QNetworkAccessManager::Operation op,
                                      const QString &url,
                                      const QByteArray &postData = QByteArray())
{
    QNetworkAccessManager *manager = NetworkAccessManager::instance();
    manager->setTransferTimeout(3000);
    QNetworkReply *reply = nullptr;

    QUrl fullUrl(QString(base_url).append(url));
    switch (op) {
    case QNetworkAccessManager::HeadOperation:
        reply = manager->head(QNetworkRequest(fullUrl));
        break;
    case QNetworkAccessManager::GetOperation:
        reply = manager->get(QNetworkRequest(fullUrl));
        break;
    case QNetworkAccessManager::PutOperation:
        reply = manager->put(QNetworkRequest(fullUrl), postData);
        break;
    case QNetworkAccessManager::PostOperation:
        reply = manager->post(QNetworkRequest(fullUrl), postData);
        break;
    case QNetworkAccessManager::DeleteOperation:
        reply = manager->deleteResource(QNetworkRequest(fullUrl));
        break;
    case QNetworkAccessManager::CustomOperation:
        break;
    default:
        break;
    }
    if (!reply) {
        qDebug() << "sendRequest Operation error";
    }

    //等待请求结束
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    QJsonValue data;
    if (!InterceptorsResponse(reply, data)) {
        return std::nullopt;
    }
    return data;
}

std::optional<QJsonValue> sendRawRequest(QNetworkAccessManager::Operation op,
                                         const QString &url,
                                         const QByteArray &postData = QByteArray())
{
    QNetworkAccessManager *manager = NetworkAccessManager::instance();
    manager->setTransferTimeout(3000);
    QNetworkReply *reply = nullptr;

    QUrl fullUrl(QString(base_url).append(url));
    switch (op) {
    case QNetworkAccessManager::HeadOperation:
        reply = manager->head(QNetworkRequest(fullUrl));
        break;
    case QNetworkAccessManager::GetOperation:
        reply = manager->get(QNetworkRequest(fullUrl));
        break;
    case QNetworkAccessManager::PutOperation:
        reply = manager->put(QNetworkRequest(fullUrl), postData);
        break;
    case QNetworkAccessManager::PostOperation:
        reply = manager->post(QNetworkRequest(fullUrl), postData);
        break;
    case QNetworkAccessManager::DeleteOperation:
        reply = manager->deleteResource(QNetworkRequest(fullUrl));
        break;
    case QNetworkAccessManager::CustomOperation:
        break;
    default:
        break;
    }
    if (!reply) {
        qDebug() << "sendRequest Operation error";
    }

    //等待请求结束
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    QJsonValue data;
    if (!InterceptorsResponse2(reply, data)) {
        return std::nullopt;
    }
    return data;
}
bool downRequest(const QString &url,
                 const QByteArray &fileName,
                 std::function<bool(QNetworkReply *)> callback)
{
    QNetworkAccessManager *manager = NetworkAccessManager::instance();
    manager->setTransferTimeout(30000);

    QUrl fullUrl(QString(base_url).append(url));
    QUrlQuery query;
    query.addQueryItem("file", fileName);
    fullUrl.setQuery(query);

    QNetworkReply *reply = manager->get(QNetworkRequest(fullUrl));

    if (!reply) {
        qDebug() << "sendRequest Operation error";
    }

    //等待请求结束
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    return callback(reply);
}

std::optional<QJsonValue> uploaderRequest(const QString &url, const QStringList &fileList)
{
    QHttpMultiPart *multiPart = new QHttpMultiPart(QHttpMultiPart::FormDataType);
    // Create a file part

    for (const QString &filePath : fileList) {
        QFile *file = new QFile(filePath);
        if (!file->open(QIODevice::ReadOnly)) {
            qWarning() << "Cannot open file:" << file->errorString();
            return false;
        }
        QHttpPart filePart;
        filePart.setBodyDevice(file);
        filePart.setHeader(QNetworkRequest::ContentTypeHeader, QVariant("application/octet-stream"));
        filePart.setHeader(QNetworkRequest::ContentDispositionHeader,
                           QString("form-data; name=\"file\"; filename=\"%1\"")
                               .arg(QFileInfo(filePath).fileName()));

        file->setParent(multiPart); // Ensure file is deleted with multiPart
        multiPart->append(filePart);
    }

    QNetworkAccessManager *manager = NetworkAccessManager::instance();

    QUrl fullUrl(QString(base_url).append(url));

    QNetworkReply *reply = manager->post(QNetworkRequest(fullUrl), multiPart);

    if (!reply) {
        qDebug() << "sendRequest Operation error";
    }

    //等待请求结束
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    QJsonValue data;
    if (!InterceptorsResponse(reply, data)) {
        return std::nullopt;
    }
    return data;
}
} // namespace TC