LedDisplay/vscode/OmobiLEDdisplayBluetooth/include/OmobiLedDisplay.h

#ifndef OMOBI_LED_DISPLAY
#define OMOBI_LED_DISPLAY

#include <Arduino.h>
#include <ArduinoJson.h>
#include "mbedtls/md.h"
#include "EepromManager.h"
#include "BluetoothLeUartServer.h"
#include "LedDisplayController.h"

class OmobiLedDisplay : protected BluetoothLeUartServerCallbacks
{

public:
    explicit OmobiLedDisplay(String deviceName, Adafruit_NeoMatrix *ledDisplayMatrix);

    // befriend for callbacks
    friend class BluetoothLeUartServer;

    void loop();

protected:
    // calbacks for BluetoothLeUartServerCallbacks
    void onDeviceConnectedChanged(bool deviceConnected) override;
    void onDataReceived(String data) override;

private:
    enum OmobiDisplayCommand
    {
        AuthorizeSessionCommand = 0,
        KeepAliveCommand = 1,
        GetAllTextSetsCommand = 10,
        GetTextSetParameterCommand = 11,
        GetDisplayBrightnessCommand = 12,
        SetTextSetParameterCommand = 20,
        SetDisplayBrightnessCommand = 21
    };

    enum OmobiDisplayStatusCode
    {
        Success = 200,
        Unauthorized = 401,
        InternalError = 500,
        DisplayControllerError = 501
    };

    unsigned long lastKeepAlive;
    const int maximumKeepAliveDelay = 10000;
    bool sessionAuthorized;

    typedef struct {
        char deviceName[50];
        char deviceCode[5];
        char valid[3];
    } DisplayProperties;

    DisplayProperties properties;

    EepromManager* eepromManager;
    EepromUnit* eepromUnit;
    LedDisplayController* ledDisplayController;
    BluetoothLeUartServer* bleServer;

    bool loadProperties();
    bool storeProperties();

    String sha256(String payload);
};

#endif // OMOBI_LED_DISPLAY