DIY Connected Espresso Machine: Main Class and Indicators (Part 5) - EspressoMachine Implementation, Work Part

EspressoMachine.cpp

#include "EspressoMachine.h"

void EspressoMachine::operateDone()
{
    isDone = false;

    if (getBoilerTargetTemp() != BoilerTemp::Cold && getBoilerTemp() == getBoilerTargetTemp())
    {
        isDone = true;
    }

    digitalWrite(donePin, isDone);
}

void EspressoMachine::work()
{
    // Get toggle state before checking whether it was toggled to have the flag up to date.
    ToggleState toggleState = getToggleState();

    // Set the command if the toggle has been toggled.
    if (toggle.getIsToggled())
    {
        switch (toggleState)
        {
        case ToggleState::Boil:
            setCommand(EspressoMachineCommand::ToggleBoil);
            break;

        case ToggleState::MakeSteam:
            setCommand(EspressoMachineCommand::ToggleMakeSteam);
            break;

        case ToggleState::PourWater:
            setCommand(EspressoMachineCommand::TogglePourWater);
            break;

        // Off by default.
        default:
            setCommand(EspressoMachineCommand::Off);
            break;
        }
    }

    // Operate components based on the command value.
    switch (lastCommand)
    {
    // External commands.
    case EspressoMachineCommand::PourWater:
        pump.on();
        break;

    case EspressoMachineCommand::StopPouringWater:
        pump.off();
        break;

    case EspressoMachineCommand::Boil:
        boiler.setTargetTemp(BoilerTemp::Boiling);
        break;

    case EspressoMachineCommand::MakeSteam:
        boiler.setTargetTemp(BoilerTemp::Steam);
        break;

    case EspressoMachineCommand::CoolDown:
        boiler.setTargetTemp(BoilerTemp::Cold);
        break;

    // Internal commands.
    case EspressoMachineCommand::ToggleBoil:
        pump.off();
        boiler.setTargetTemp(BoilerTemp::Boiling);
        break;

    case EspressoMachineCommand::ToggleMakeSteam:
        pump.off();
        boiler.setTargetTemp(BoilerTemp::Steam);
        break;

    case EspressoMachineCommand::TogglePourWater:
        pump.on();
        boiler.setTargetTemp(BoilerTemp::Cold);
        break;

    // Off by default.
    default:
        pump.off();
        boiler.setTargetTemp(BoilerTemp::Cold);
        break;
    }

    // Operate boiler to achieve the target state.
    boiler.work();

    // Operate the "Done" pin to reflect the command state.
    operateDone();
}