Sesame-Device/include/controller.h

#pragma once

#include "server.h"
#include "servo.h"
#include "message.h"
#include "storage.h"
#include "fresh.h"
#include <ESPAsyncWebServer.h>

class SesameController: public ServerConnectionCallbacks {

public:
    SesameController(ServerConnection* server, ServoController* servo, AsyncWebServer* local, TimeCheck* timeCheck, uint8_t remoteDeviceCount);

    void configure();

private:

    ServerConnection* server;
    ServoController* servo;
    AsyncWebServer* local;
    TimeCheck* timeCheck;
    Storage storage;

    // The buffer to hold a received message while it is read
    uint8_t receivedMessageBuffer[AUTHENTICATED_MESSAGE_SIZE];

    // The buffer to hold a response while it is sent
    uint8_t responseBuffer[AUTHENTICATED_MESSAGE_SIZE+1];
    SesameEvent* responseStatus;
    AuthenticatedMessage* responseMessage;
    uint16_t responseSize = 0;

    void handleLocalMessage(AsyncWebServerRequest *request);
    // Based on https://stackoverflow.com/a/23898449/266720
    bool convertHexMessageToBinary(const char* str);

    void handleServerMessage(uint8_t* payload, size_t length);
    void sendServerError(SesameEvent event);

    void processMessage(AuthenticatedMessage* message);
    SesameEvent verifyAndProcessReceivedMessage(AuthenticatedMessage* message);

    uint16_t prepareResponseBuffer(SesameEvent event, uint8_t deviceId = 0);
    void sendPreparedLocalResponse(AsyncWebServerRequest *request);
    void sendPreparedServerResponse();
};