/**************************************************************************
*
* 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 ModeSolo.c
*
* @author (last) Dara Navaei
* @date (last) 04-Jun-2020
*
* @author (original) Sean
* @date (original) 18-Mar-2020
*
***************************************************************************/

#include "CPLD.h"
#include "ModeSolo.h"
#include "OperationModes.h"
#include "SystemComm.h"

/**
 *  @addtogroup DGSoloStandbyMode
 *  @{
 */

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

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

static DG_SOLO_STANDBY_STATE_T soloState = DG_SOLO_STANDBY_STATE_START;       ///< Currently active solo standby state.

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

static DG_SOLO_STANDBY_STATE_T handleIdleDGSoloStandbyState( void );

/*********************************************************************//**
 * @brief
 * The initSoloMode function initializes the Standby-Solo Mode module.
 * @details
 * Inputs : none
 * Outputs : Standby-Solo Mode module initialized.
 * @return none
 *************************************************************************/
void initSoloMode( void )
{
    soloState = DG_SOLO_STANDBY_STATE_START;
}

/*********************************************************************//**
 * @brief
 * The transitionToSoloMode function prepares for transition to standby-solo mode.
 * @details
 * Inputs : none
 * Outputs :
 * @return none
 *************************************************************************/
void transitionToSoloMode( void )
{
    initSoloMode();
}

/*********************************************************************//**
 * @brief
 * The execSoloMode function executes the Standby-Solo Mode state machine.
 * @details
 * Inputs : none
 * Outputs :
 * @return current state.
 *************************************************************************/
U32 execSoloMode( void )
{
    // execute current solo standby state
    switch ( soloState )
    {
        case DG_SOLO_STANDBY_STATE_START:
            soloState = DG_SOLO_IDLE_STATE;
            break;

        case DG_SOLO_IDLE_STATE:
            soloState = handleIdleDGSoloStandbyState();
            break;

        default:
            // TODO - s/w fault
            soloState = DG_SOLO_STANDBY_STATE_START;
            break;
    }

    return soloState;
}

/*********************************************************************//**
 * @brief
 * The handleIdleDGSoloStandbyState function handles the idle state of DG \n
 * standby-solo mode.
 * @details
 * Inputs : none
 * Outputs : none
 * @return the next state of standby-solo mode.
 *************************************************************************/
static DG_SOLO_STANDBY_STATE_T handleIdleDGSoloStandbyState( void )
{
    DG_SOLO_STANDBY_STATE_T result = DG_SOLO_IDLE_STATE;

    // if HD is on, transition to DG standby mode
    if ( TRUE == isHDCommunicating() )
    {
        requestNewOperationMode( DG_MODE_STAN );
    }

    return result;
}

/*********************************************************************//**
 * @brief
 * The getCurrentSoloState function returns the current state of the \n
 * standby-solo mode.
 * @details
 * Inputs : soloState
 * Outputs : none
 * @return the current state of standby-solo mode.
 *************************************************************************/
DG_SOLO_STANDBY_STATE_T getCurrentSoloState( void )
{
    return soloState;
}

/**@}*/