#ifndef FACEMANAGEDIALOG_H
#define FACEMANAGEDIALOG_H

#include <QDialog>
#include <QGridLayout>
#include <QScrollArea>
#include <QLabel>
#include <QLineEdit>
#include <QPushButton>
#include <QMap>
#include <QNetworkAccessManager>
#include <QNetworkReply>

/**
 * @brief 人脸照片项组件
 * 显示单个人脸照片及其学号映射
 */
class FacePhotoItem : public QWidget
{
    Q_OBJECT

public:
    explicit FacePhotoItem(const QString &faceId, bool hasPhoto = true, QWidget *parent = nullptr);

    QString getFaceId() const { return m_faceId; }
    QString getStudentId() const { return m_studentIdEdit->text().trimmed(); }
    void setStudentId(const QString &studentId) { m_studentIdEdit->setText(studentId); }
    void setPhoto(const QPixmap &pixmap);
    bool hasPhoto() const { return m_hasPhoto; }

signals:
    void studentIdChanged(const QString &faceId, const QString &studentId);
    void deleteRequested(const QString &faceId);

private:
    QString m_faceId;
    bool m_hasPhoto;
    QLabel *m_photoLabel;
    QLabel *m_idLabel;
    QLineEdit *m_studentIdEdit;
    QPushButton *m_deleteButton;
};

/**
 * @brief 人脸管理对话框
 * 显示K210上传的人脸照片，允许配置学号映射
 */
class FaceManageDialog : public QDialog
{
    Q_OBJECT

public:
    explicit FaceManageDialog(QWidget *parent = nullptr);
    ~FaceManageDialog();

    void setServerUrl(const QString &url) { m_serverUrl = url; }

signals:
    void mappingSaved();

public slots:
    void refreshPhotos();

private slots:
    void onPhotoListReceived(QNetworkReply *reply);
    void onPhotoReceived(QNetworkReply *reply);
    void onMappingReceived(QNetworkReply *reply);
    void onMappingSaved(QNetworkReply *reply);
    void onAllStudentIdsReceived(QNetworkReply *reply);
    void onFaceDeleted(QNetworkReply *reply);
    void saveMapping();
    void onDeleteRequested(const QString &studentId);

private:
    void setupUI();
    void fetchPhotoList();
    void fetchPhoto(const QString &faceId);
    void fetchMapping();
    void fetchAllStudentIds();
    void uploadMapping();
    void deleteFace(const QString &studentId, bool deleteRecords);
    void clearPhotoItems();

    QString m_serverUrl;
    QNetworkAccessManager *m_networkManager;
    QScrollArea *m_scrollArea;
    QWidget *m_contentWidget;
    QGridLayout *m_gridLayout;
    QPushButton *m_refreshButton;
    QPushButton *m_saveButton;
    QLabel *m_statusLabel;

    QMap<QString, FacePhotoItem*> m_photoItems;  // faceId -> item
    QMap<QString, QString> m_idMapping;           // faceId -> studentId
    int m_pendingPhotoCount;
};

#endif // FACEMANAGEDIALOG_H