#pragma once
#include <QObject>
#include <QNetworkAccessManager>
#include <QSet>
#include <QMap>
#include <dao/DeviceDAO.h>
#include <db/DeviceInfo.h>

class DeviceScreener final : public QObject {
    Q_OBJECT

public:
    explicit DeviceScreener(QObject *parent = nullptr);

    ~DeviceScreener() override;

    static constexpr qint64 kOfflineDebounceSecs = 30;

public slots:
    void start();

    void stop();

signals:
    void finished();
    void firstPassDone();
    void deviceWentOnline(const QString &deviceId);
    void deviceWentOffline(const QString &deviceId);

private:
    bool m_running = true;
    bool m_firstScan = true;
    QString m_urlAppUpdate;
    QString m_token;
    QString m_apiBase;
    QNetworkAccessManager *m_manager = nullptr;
    QMap<QString, qint64> m_lastApiUpdate; // deviceId → unix timestamp последнего PATCH
    QSet<QString> m_onlineDevices;         // дебаунс-онлайн (true online после dedup)
    QMap<QString, qint64> m_offlineSince;  // deviceId → когда пропал из ADB (для дебаунса)

    static QList<QPair<QString, QString> > readAdbDevices();

    static QByteArray takeScreenshot(const QString &deviceId);

    static DeviceInfo readDeviceInfo(const QString &adbSerial);

    void postDevicesData(const QList<DeviceInfo> &devices);

    QJsonValue apiGet(const QString &path);
    QJsonValue apiPost(const QString &path, const QJsonObject &body);
    void apiPatch(const QString &path, const QJsonObject &body);

    QString createDeviceOnApi(const DeviceInfo &device);
    void updateDeviceOnApi(const DeviceInfo &device);
    void postScreenshotToApi(const QString &apiId, const QByteArray &image);
};