/**************************************************************************
*
* Copyright (c) 2019-2020 Diality Inc. - All Rights Reserved.
*
* THIS CODE MAY NOT BE COPIED OR REPRODUCED IN ANY FORM, IN PART OR IN
* WHOLE, WITHOUT THE EXPLICIT PERMISSION OF THE COPYRIGHT OWNER.
*
* @file ModeChemicalDisinfect.c
*
* @author (last) Quang Nguyen
* @date (last) 01-Sep-2020
*
* @author (original) Sean
* @date (original) 04-Apr-2020
*
***************************************************************************/

#include "ModeChemicalDisinfect.h"
#include "OperationModes.h"
#include "Pressures.h"

/**
 *  @addtogroup DGChemicalDisinfectMode
 *  @{
 */

// ********** private definitions **********

// ********** private data **********

static DG_CHEM_DISINFECT_STATE_T chemState = DG_CHEM_DISINFECT_STATE_START;          ///< Currently active chemical disinfect state.

// ********** private function prototypes **********

/*********************************************************************//**
 * @brief
 * The initChemicalDisinfectMode function initializes the chemical disinfect mode module.
 * @details Inputs: none
 * @details Outputs: Module initialized.
 * @return none
 *************************************************************************/
void initChemicalDisinfectMode( void )
{
    chemState = DG_CHEM_DISINFECT_STATE_START;
}

/*********************************************************************//**
 * @brief
 * The transitionToChemicalDisinfectMode function prepares for transition to
 * chemical disinfect mode.
 * @details Inputs: none
 * @details Outputs: none
 * @return none
 *************************************************************************/
void transitionToChemicalDisinfectMode( void )
{
    initChemicalDisinfectMode();
}

/*********************************************************************//**
 * @brief
 * The execChemicalDisinfectMode function executes the chemical disinfect mode state machine.
 * @details Inputs: none
 * @details Outputs: Chemical disinfect mode state machine executed
 * @return current state of chemical disinfect mode
 *************************************************************************/
U32 execChemicalDisinfectMode( void )
{
    checkInletPressureFault();

    // execute current chemical disinfect state
    switch ( chemState )
    {
        case DG_CHEM_DISINFECT_STATE_START:
            break;

        default:
            // TODO - s/w fault
            chemState = DG_CHEM_DISINFECT_STATE_START;
            break;
    }

    return chemState;
}

/*********************************************************************//**
 * @brief
 * The getCurrentChemicalDisinfectState function returns the current state of the
 * chemical disinfect mode.
 * @details Inputs: chemState
 * @details Outputs: none
 * @return current state of chemical disinfect mode
 *************************************************************************/
DG_CHEM_DISINFECT_STATE_T getCurrentChemicalDisinfectState( void )
{
    return chemState;
}

/**@}*/