DeviCounterSimulator.h

/*--------------------------------------------------------------------------------------------
Copyright (c) 2023, NDEVR LLC
tyler.parke@ndevr.org
  __    __   ____     _____ __     __  _______
 |  \  |  | |  __ \  |  ___|\ \   / / |   __  \
 |   \ |  | | |  \ \ | |___  \ \ / /  |  |__)  |
 |  . \|  | | |__/ / | |___   \ V /   |   _   /
 |  |\    |_|_____/__|_____|___\_/____|  | \  \
 |__| \__________________________________|  \__\
 
Subject to the terms of the Enterprise+ Agreement, NDEVR hereby grants
Licensee a limited, non-exclusive, non-transferable, royalty-free license
(without the right to sublicense) to use the API solely for the purpose of
Licensee's internal development efforts to develop applications for which
the API was provided.
 
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
 
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE
FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
DEALINGS IN THE SOFTWARE.
 
Library: DeviCounter
File: DLLInfo
Included in API: True
Author(s): Tyler Parke
 *-----------------------------------------------------------------------------------------**/
#pragma once
#include "DeviCounterConnection.h"
#include <NDEVR/Connection.h>
#include <NDEVR/Random.h>
#include <NDEVR/Thread.h>
namespace NDEVR
{
    class DeviCounterSimulatorIO : public ConnectionBackend
    {
    public:
        DeviCounterSimulatorIO()
            : ConnectionBackend(nullptr)
            , next_send_time(Time::SystemTime())
        {
            simulateDeploymentStart();
            simulateRandomEvent();
        }
        uint04 peek(char* s, uint04 size = Constant<uint04>::Max) const final override
        {
            simulateRandomEvent();
            if (Time::SystemTime() <= next_send_time)
                return 0U;
            uint04 final_size = getMin(size, m_next_send.size());
            memcpy(s, m_next_send.c_str(), final_size);
            return final_size;
        }
        uint04 rx(char* s, uint04 size = Constant<uint04>::Max) final override
        {
            if (Time::SystemTime() <= next_send_time)
                return 0U;
            next_send_time += TimeSpan(1.0);
            simulateRandomEvent();
            uint04 final_size = getMin(size, m_next_send.size());
            memcpy(s, m_next_send.c_str(), final_size);
            if (final_size >= m_next_send.size())
                m_next_send.clear();
            else
                m_next_send.removeAllIndex(0, size);
            return final_size;
        }
        void tx(const StringView&) final override
        {
            simulateRandomEvent();
        };
 
        bool open(const ConnectionInfo&) final override
        {
            if (m_is_open)
                return true;
            simulateRandomEvent();
            m_is_open = MakeRandom(10.0) > 0.1;
            return m_is_open;
        }
        void close() final override
        {
            m_is_open = false;
            simulateRandomEvent();
            m_next_send.clear();
        }
        bool isOpen() const final override
        {
            return m_is_open;
        }
        bool waitForReadyRead(const TimeSpan& span) final override
        {
            if (Time::SystemTime() >= next_send_time)
                return true;
            ThreadFunctions::RequestSleep(getMin(span, Time::SystemTime() - next_send_time));
            if (Time::SystemTime() >= next_send_time)
                return true;
            return false;
        }
 
        void simulateDeploymentStart()
        {
            m_speed = MakeRandom(0.02, 0.05);
        }
        void simulateRandomEvent() const
        {
            m_battery_voltage -= MakeRandom(0.0, 0.01);
            m_temperature += MakeRandom(-0.01, 0.01);
            if(m_speed > 0.0)
                m_speed += MakeRandom(-0.001, 0.001);
            m_distance += m_speed * (Time::SystemTime() - m_last_speed_time).elapsedSeconds();
            if (Time::SystemTime() - m_last_speed_time > TimeSpan(1.0))
            {
                m_last_speed_time = Time::SystemTime();
                m_next_send += "$"
                    + String(m_distance) + ";"
                    + String(m_speed) + ";"
                    + String(m_battery_voltage) + ";999;0;0*12";
            }
            
        }
        
        TranslatedString lastError() const final override
        {
            return TranslatedString();
        }
        uint04 bytesAvailable() const final override
        {
            if (Time::SystemTime() >= next_send_time)
                return m_next_send.size();
            return 0U;
        }
        uint08 elapsedTime() const
        {
            return (Time::SystemTime() - m_start_time).elapsedMilliseconds();
        }
        mutable Time m_start_time;
        mutable Time m_last_speed_time;
        mutable String m_error = String("0000");
        mutable fltp08 m_battery_voltage = 0.0;
        mutable fltp08 m_distance = 0.0;
        mutable fltp08 m_temperature = 0.0;
        mutable fltp08 m_speed = 0.0;
        mutable String m_next_send;
        mutable Time next_send_time = Constant<Time>::Invalid;
        bool m_is_open = false;
    };
}