#include "gradesapi.h"

#include <QJsonDocument>
#include <QJsonObject>
#include <QJsonValue>
#include <optional>

#include "appevent.h"
#include "tapi.h"

#include <QDebug>

namespace TC {

extern std::optional<QJsonValue> sendRequest(QNetworkAccessManager::Operation op,
                                             const QString &url,
                                             const QByteArray &postData);

extern std::optional<QJsonValue> sendRawRequest(QNetworkAccessManager::Operation op,
                                                const QString &url,
                                                const QByteArray &postData);

GradesUpdate::GradesUpdate()
    : QObject()
    , url("/score-api/grades/create")
{}

GradesUpdate::GradesUpdate(const QString &answerFileName,
                           const QString &checkinNumber,
                           int endTime,
                           const QString &examRoom,
                           const QString &examSessions,
                           const QString &examText,
                           const QString &examineNumber,
                           const QString &groupName,
                           const QString &name,
                           int onlineStatus,
                           const QString &schoolAddress,
                           const QString &schoolName,
                           int sex,
                           int startTime,
                           int status,
                           const QString &swId)
    : QObject()
    , url("/score-api/grades/create")
{
    QJsonObject json;
    json["answerFileName"] = answerFileName;
    json["checkinNumber"] = checkinNumber;
    json["endTime"] = endTime;
    json["examRoom"] = examRoom;
    json["examSessions"] = examSessions;
    json["examText"] = examText;
    json["examineNumber"] = examineNumber;
    json["groupName"] = groupName;
    json["name"] = name;
    json["onlineStatus"] = onlineStatus;
    json["schoolAddress"] = schoolAddress;
    json["schoolName"] = schoolName;
    json["sex"] = sex;
    json["startTime"] = startTime;
    json["status"] = status;
    json["swId"] = swId;

    QJsonDocument jsonData(json);
    postData = jsonData.toJson();
}

GradesUpdate::Data GradesUpdate::post()
{
    GradesUpdate::Data ret;
    ret.success = false;
    ret.message = "Failed to update grades";
    
    std::optional<QJsonValue> data = sendRequest(QNetworkAccessManager::PostOperation,
                                                 url,
                                                 postData);
    if (!data.has_value()) {
        return ret;
    }
    
    const QJsonObject &object = data.value().toObject();
    qDebug() << object;
    ret.success = object["status"].toBool();
    ret.message = object["message"].toString();
    
    // 如果成功，触发考试更新事件
    if (ret.success) {
        AppEvent::instance()->examsTestUpdate();
    }
    
    return ret;
}

// 添加异步版本的 post 方法
void GradesUpdate::postAsync(std::function<void(const Data&)> callback, int maxRetries)
{
    // 创建任务并添加到线程池
    std::shared_ptr<GradesUpdateTask> task = std::make_shared<GradesUpdateTask>(url, postData, callback);
    task->setMaxRetries(maxRetries);
    RequestThreadPool::instance()->addTask(task);
}

// GradesUpdateTask 实现
GradesUpdateTask::GradesUpdateTask(const QString &url, const QByteArray &postData, std::function<void(const GradesUpdate::Data&)> callback)
    : m_url(url)
    , m_postData(postData)
    , m_callback(callback)
{
}

void GradesUpdateTask::run()
{
    // 执行请求
    std::optional<QJsonValue> data = sendRawRequest(QNetworkAccessManager::PostOperation,
                                                    m_url,
                                                    m_postData);

    GradesUpdate::Data ret;
    ret.success = false;
    ret.message = "Failed to update grades";
    
    bool success = false;
    
    if (data.has_value()) {
        const QJsonObject &object = data.value().toObject();
        qDebug() << object << object.isEmpty() << object.empty();

        if (object.contains("code")) {
            int code = object.value("code").toInt();
            if (code == 0) {
                ret.success = true;
            }
        }
        if (object.contains("msg")) {
            ret.message = object.value("msg").toString();
        }

        // 如果成功，触发考试更新事件
        if (ret.success) {
            AppEvent::instance()->examsTestUpdate();
            success = true;
        }
    }
    
    // 调用回调函数
    if (m_callback) {
        m_callback(ret);
    }
    
    // 发送任务完成信号
    emit taskCompleted(success);
    
    // 如果失败，发送失败信号，可能会触发重试
    if (!success) {
        emit taskFailed();
    }
}

bool GradesUpdateTask::retry()
{
    // 这里可以添加重试前的准备工作，如果需要的话
    return true; // 返回 true 表示可以重试
}

} // namespace TC