#ifndef NETWORKAPIMANAGER_H
#define NETWORKAPIMANAGER_H

#include <QObject>
#include <QNetworkAccessManager>
#include <QNetworkReply>
#include <QVector>
#include "AttendanceRecord.h"
#include "TimeSlotConfig.h"

/**
 * @brief 网络API管理类
 *
 * 负责与服务器端HTTP API通信（支持AES-128-CBC加密）
 * API端点：http://server_ip:8082/api/
 */
class NetworkApiManager : public QObject
{
    Q_OBJECT

public:
    explicit NetworkApiManager(QObject *parent = nullptr);
    ~NetworkApiManager();

    // 设置服务器地址
    void setServerUrl(const QString &url);
    QString getServerUrl() const { return m_serverUrl; }

    // 设置是否启用加密通信
    void setEncryptionEnabled(bool enabled) { m_encryptionEnabled = enabled; }
    bool isEncryptionEnabled() const { return m_encryptionEnabled; }

    // API调用
    void fetchRecords(int limit = 100, int offset = 0);
    void fetchStatistics();
    void clearAllRecords();
    void deleteRecord(const QString &timestamp, const QString &studentId);
    void uploadTimeSlots(const QVector<TimeSlot> &timeSlots);
    void checkHealth();

    // 映射配置API
    void uploadMappingConfig(const QMap<QString, QString> &studentNameMap,
                             const QMap<QString, QString> &classNameMap);
    void fetchMappingConfig();

    // 人脸照片管理API
    void fetchFacePhotos();
    void fetchFacePhoto(const QString &faceId);
    void uploadFaceIdMapping(const QMap<QString, QString> &mapping);
    void fetchFaceIdMapping();

signals:
    // 响应信号
    void recordsFetched(const QVector<AttendanceRecord> &records);
    void statisticsFetched(int total, int today, const QString &serverTime);
    void recordsCleared(bool success);
    void recordDeleted(bool success);
    void timeSlotsUploaded(bool success);
    void healthChecked(bool healthy);
    void errorOccurred(const QString &error);

    // 映射配置信号
    void mappingConfigUploaded(bool success);
    void mappingConfigFetched(const QMap<QString, QString> &studentNameMap,
                              const QMap<QString, QString> &classNameMap);

    // 人脸照片管理信号
    void facePhotosFetched(const QJsonArray &photos);
    void facePhotoFetched(const QString &faceId, const QByteArray &photoData);
    void faceIdMappingUploaded(bool success);
    void faceIdMappingFetched(const QMap<QString, QString> &mapping);

private slots:
    void onReplyFinished(QNetworkReply *reply);

private:
    QNetworkAccessManager *m_networkManager;
    QString m_serverUrl;
    bool m_encryptionEnabled;  // 是否启用加密通信

    QString buildApiUrl(const QString &endpoint, const QMap<QString, QString> &params = QMap<QString, QString>());
    QVector<AttendanceRecord> parseRecordsJson(const QByteArray &json);

    // AES加密/解密功能
    QByteArray aesDecrypt(const QByteArray &encryptedData);
    QByteArray removePKCS7Padding(const QByteArray &data);
};

#endif // NETWORKAPIMANAGER_H