#include "backendapimanager.h"
#include <QEventLoop>

backendAPIManager *backendAPIManager::s_instance = nullptr;

void backendAPIManager::initialize(const QString &backendUrl)
{
    if (!s_instance)
    {
        s_instance = new backendAPIManager(backendUrl);
    }
}

void backendAPIManager::cleanup()
{
    if (s_instance)
    {
        delete s_instance;
        s_instance = nullptr;
    }
}

void backendAPIManager::setAuthToken(const QString &token)
{
    qDebug() << "Setting auth token:" << token << s_instance;
    if (s_instance)
    {
        s_instance->authToken = token;
    }
}

backendAPIManager::backendAPIManager(const QString &backendUrl, QObject *parent)
    : QObject(parent), backendUrl(backendUrl), requestSuccess(false)
{
    networkManager = new QNetworkAccessManager(this);
}

backendAPIManager::~backendAPIManager()
{
    if (networkManager)
    {
        delete networkManager;
        networkManager = nullptr;
    }
}

void backendAPIManager::setupRequest(QNetworkRequest &request, const QString &endpoint)
{
    request.setUrl(QUrl(backendUrl + endpoint));
    request.setHeader(QNetworkRequest::ContentTypeHeader, "application/json");

    if (!s_instance->authToken.isEmpty())
    {
        request.setRawHeader("Authorization", s_instance->authToken.toUtf8());
    }
}

QNetworkReply *backendAPIManager::sendRequest(const QString &endpoint,
                                              const QJsonObject &data,
                                              const QString &method)
{
    QNetworkRequest request;
    setupRequest(request, endpoint);

    QJsonDocument doc(data);
    QByteArray jsonData = doc.toJson();

    QNetworkReply *reply = nullptr;
    if (method == "GET")
    {
        reply = networkManager->get(request);
    }
    else if (method == "POST")
    {
        reply = networkManager->post(request, jsonData);
    }
    else if (method == "PUT")
    {
        reply = networkManager->put(request, jsonData);
    }
    else if (method == "DELETE")
    {
        reply = networkManager->deleteResource(request);
    }

    return reply;
}

bool backendAPIManager::uploadBlastProject(const QJsonObject &projectData)
{
    if (!s_instance)
        return false;

    s_instance->requestSuccess = false;
    QNetworkReply *reply = s_instance->sendRequest("blastrecord/pc", projectData, "POST");

    // 使用事件循环等待响应
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    if (reply->error() == QNetworkReply::NoError)
    {
        QJsonDocument response = QJsonDocument::fromJson(reply->readAll());
        qDebug() << "Upload response:" << response;
        s_instance->handleUploadFinished(response, reply->url());
    }
    else
    {
        qDebug() << "Upload error:" << reply->errorString();
        s_instance->handleUploadError(reply->errorString());
    }

    reply->deleteLater();
    qDebug() << "Uploading blast project data:" << projectData << "result" << s_instance->requestSuccess;
    return s_instance->requestSuccess;
}

bool backendAPIManager::uploadBlastDet(const QJsonObject &detsData)
{
    if (!s_instance)
        return false;

    s_instance->requestSuccess = false;
    QNetworkReply *reply = s_instance->sendRequest("/blastrecorddet", detsData, "POST");

    // 使用事件循环等待响应
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    if (reply->error() == QNetworkReply::NoError)
    {
        QJsonDocument response = QJsonDocument::fromJson(reply->readAll());
        s_instance->handleUploadFinished(response, reply->url());
    }
    else
    {
        s_instance->handleUploadError(reply->errorString());
    }

    reply->deleteLater();
    return s_instance->requestSuccess;
}

bool backendAPIManager::uploadBlastEquipments(const QJsonObject &regDetsData)
{
    if (!s_instance)
        return false;

    s_instance->requestSuccess = false;
    QNetworkReply *reply = s_instance->sendRequest("/blastrecorddet", regDetsData, "POST");

    // 使用事件循环等待响应
    QEventLoop loop;
    QObject::connect(reply, &QNetworkReply::finished, &loop, &QEventLoop::quit);
    loop.exec();

    if (reply->error() == QNetworkReply::NoError)
    {
        QJsonDocument response = QJsonDocument::fromJson(reply->readAll());
        s_instance->handleUploadFinished(response, reply->url());
    }
    else
    {
        s_instance->handleUploadError(reply->errorString());
    }

    reply->deleteLater();
    return s_instance->requestSuccess;
}

void backendAPIManager::handleUploadFinished(const QJsonDocument &response, const QUrl &url)
{
    // Check response status
    if (response.object().contains("code"))
    {
        int code = response.object()["code"].toInt();
        requestSuccess = (code == 200);
    }
    else
    {
        requestSuccess = false;
    }

    emit uploadFinished(response);
}

void backendAPIManager::handleUploadError(const QString &error)
{
    requestSuccess = false;
    emit uploadError(error);
}