chat_view.h

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#ifndef WAVELENGTH_CHAT_VIEW_H
#define WAVELENGTH_CHAT_VIEW_H
 
#include <QAudioFormat>
#include <QWidget>
 
class TranslationManager;
class QSoundEffect;
class QAudioOutput;
class QAudioInput;
class QPushButton;
class QLineEdit;
class StreamDisplay;
class QLabel;

class ChatView final : public QWidget {
    Q_OBJECT
    Q_PROPERTY(double scanlineOpacity READ GetScanlineOpacity WRITE SetScanlineOpacity)
 
    
    enum PttState {
        Idle, 
        Requesting, 
        Transmitting, 
        Receiving 
    };
 
public:
    explicit ChatView(QWidget *parent = nullptr);

    ~ChatView() override;

    [[nodiscard]] double GetScanlineOpacity() const { return scanline_opacity_; }

    void SetScanlineOpacity(double opacity);

    void SetWavelength(const QString &frequency, const QString &name = QString());

    void OnMessageReceived(const QString &frequency, const QString &message);

    void OnMessageSent(const QString &frequency, const QString &message) const;

    void OnWavelengthClosed(const QString &frequency);

    void Clear();
 
public slots:
    void AttachFile();
 
protected:
    void paintEvent(QPaintEvent *event) override;
 
private slots:
    void OnPttButtonPressed();

    void OnPttButtonReleased();

    void OnPttGranted(const QString &frequency);

    void OnPttDenied(const QString &frequency, const QString &reason);

    void OnPttStartReceiving(const QString &frequency, const QString &sender_id);

    void OnPttStopReceiving(const QString &frequency);

    void OnAudioDataReceived(const QString &frequency, const QByteArray &audio_data) const;

    void OnReadyReadInput() const;

    void UpdateProgressMessage(const QString &message_id, const QString &message) const;

    void SendMessage() const;

    void AbortWavelength();

    void TriggerVisualEffect();

    void TriggerConnectionEffect();

    void TriggerActivityEffect();
 
signals:
    void wavelengthAborted();
 
private:
    QLabel *header_label_;
    QLabel *status_indicator_;
    StreamDisplay *message_area_;
    QLineEdit *input_field_;
    QPushButton *attach_button_;
    QPushButton *send_button_;
    QPushButton *abort_button_;
    QPushButton *ptt_button_;

    QString current_frequency_ = "-1.0";
    double scanline_opacity_;
    bool is_aborting_ = false;
    QString current_transmitter_id_;

    PttState ptt_state_;
    QAudioInput *audio_input_;
    QAudioOutput *audio_output_;
    QIODevice *input_device_;
    QIODevice *output_device_;
    QAudioFormat audio_format_;
    QSoundEffect *ptt_on_sound_;
    QSoundEffect *ptt_off_sound_;
    TranslationManager *translator_;

    void InitializeAudio();

    void StartAudioInput();

    void StopAudioInput();

    void StartAudioOutput();

    void StopAudioOutput();

    [[nodiscard]] qreal CalculateAmplitude(const QByteArray &buffer) const;

    void UpdatePttButtonState() const;

    void ResetStatusIndicator() const;
};
 
#endif // WAVELENGTH_CHAT_VIEW_H