/*
* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
* All rights reserved.
* This component and the accompanying materials are made available
* under the terms of "Eclipse Public License v1.0"
* which accompanies this distribution, and is available
* at the URL "http://www.eclipse.org/legal/epl-v10.html".
*
* Initial Contributors:
* Nokia Corporation - initial contribution.
*
* Contributors:
*
* Description: 
*
*/

#include <stdio.h>
#include <stdlib.h>
#include <assert.h>

#include "xanlinearvolumeitf.h"
#include "xanokialinearvolumeitfadaptationmmf.h"

/**
 * XANokiaLinearVolumeItfImpl* GetImpl(XANokiaLinearVolumeItf self)
 * Description: Validated interface pointer and cast it to implementations pointer.
 **/
static XANokiaLinearVolumeItfImpl* GetImpl(XANokiaLinearVolumeItf self)
{
    if(self)
    {
        XANokiaLinearVolumeItfImpl* impl = (XANokiaLinearVolumeItfImpl*)(*self);
        if(impl && impl == impl->self)
        {
            return impl;
        }
    }
    return NULL;
}

/**
 * XAresult XANokiaLinearVolumeItfImpl_RegisterVolumeCallback(XANokiaLinearVolumeItf self,
 *                                               xaNokiaLinearVolumeCallback callback,
 *                                               void * pContext)
 * Description: Sets or clears the xaVolumeCallback.
 **/
XAresult XANokiaLinearVolumeItfImpl_RegisterVolumeCallback(XANokiaLinearVolumeItf self,
                                              xaNokiaLinearVolumeCallback callback,
                                              void * pContext)
{
    XAresult ret = XA_RESULT_SUCCESS;
    XANokiaLinearVolumeItfImpl* impl = GetImpl(self);
    DEBUG_API("->XANokiaLinearVolumeItfImpl_RegisterVolumeCallback");

    if(!impl)
    {
        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
        /* invalid parameter */
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_RegisterVolumeCallback");
        return XA_RESULT_PARAMETER_INVALID;
    }

    impl->callback = callback;
    impl->context = pContext;
    impl->cbPtrToSelf = self;

    DEBUG_API("<-XANokiaLinearVolumeItfImpl_RegisterVolumeCallback");
    return ret;
}

/**
 * Base interface XANokiaLinearVolumeItf implementation
 */

/**
 * XAresult XANokiaLinearVolumeItfImpl_SetVolumeLevel(XANokiaLinearVolumeItf self, XAuint32 percentage)
 * Description: Sets the object's volume level.
 **/
XAresult XANokiaLinearVolumeItfImpl_SetVolumeLevel(XANokiaLinearVolumeItf self, XAuint32 *percentage)
{
    XANokiaLinearVolumeItfImpl *impl = GetImpl(self);
    XAresult ret = XA_RESULT_SUCCESS;     
    XAuint32 vol = *percentage;
    
    DEBUG_API("->XANokiaLinearVolumeItfImpl_SetVolumeLevel");

  
    if((!impl) || (vol > MAX_PERCENTAGE_VOLUME))
    {
        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_SetVolumeLevel");
        /* invalid parameter */
        return XA_RESULT_PARAMETER_INVALID;
    }

    ret = XAAdaptationBase_ThreadEntry(impl->adapCtx);
    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
    {
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_SetVolumeLevel");
        return ret;
    }
    if(impl->adapCtx->fwtype == FWMgrFWMMF)
        {
        ret = XANokiaLinearVolumeItfAdapt_SetVolumeLevel((XAAdaptationMMFCtx*)impl->adapCtx,  vol);
        }

    if(ret == XA_RESULT_SUCCESS)
    {
        impl->volumeLevel = vol;
    }

    XAAdaptationBase_ThreadExit(impl->adapCtx);
    DEBUG_API("<-XANokiaLinearVolumeItfImpl_SetVolumeLevel");
    return ret ;
}

/**
 * XAresult XANokiaLinearVolumeItfImpl_GetVolumeLevel(XANokiaLinearVolumeItf self, XAmillibel *pLevel)
 * Description: Gets the object’s volume level.
 **/
XAresult XANokiaLinearVolumeItfImpl_GetVolumeLevel(XANokiaLinearVolumeItf self, XAuint32 *percentage)
{
    XAresult ret = XA_RESULT_SUCCESS;
    XANokiaLinearVolumeItfImpl *impl = GetImpl(self);
    DEBUG_API("->XANokiaLinearVolumeItfImpl_GetVolumeLevel");

    if(!impl || !percentage)
    {
        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetVolumeLevel");
        /* invalid parameter */
        return XA_RESULT_PARAMETER_INVALID;
    }

    *percentage = impl->volumeLevel;

    DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetVolumeLevel");
    return ret;
}

/**
 * XAresult XANokiaLinearVolumeItfImpl_GetMaxVolumeLevel(XANokiaLinearVolumeItf  self, XAmillibel *pMaxLevel)
 * Description: Gets the maximum supported level.
 **/
XAresult XANokiaLinearVolumeItfImpl_GetStepCount(XANokiaLinearVolumeItf  self, XAuint32 *pStepCount)
{
    XAresult ret = XA_RESULT_SUCCESS;
    XANokiaLinearVolumeItfImpl *impl = GetImpl(self);
    DEBUG_API("->XANokiaLinearVolumeItfImpl_GetVolumeLevel");

    if(!impl || !pStepCount)
    {
        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetMaxVolumeLevel");
        /* invalid parameter */
        return XA_RESULT_PARAMETER_INVALID;
    }

    ret = XAAdaptationBase_ThreadEntry(impl->adapCtx);
    if( ret == XA_RESULT_PARAMETER_INVALID || ret == XA_RESULT_PRECONDITIONS_VIOLATED )
    {
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetMaxVolumeLevel");
        return ret;
    }
    if(impl->adapCtx->fwtype == FWMgrFWMMF)
        {
        ret = XANokiaLinearVolumeItfAdapt_GetStepCount((XAAdaptationMMFCtx*)impl->adapCtx, pStepCount);
        }

    XAAdaptationBase_ThreadExit(impl->adapCtx);
    DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetMaxVolumeLevel");
    return ret;
}

XAresult XANokiaLinearVolumeItfImpl_SetCallbackEventsMask(XANokiaLinearVolumeItf self, XAuint32 eventFlags )
    {
    XAresult ret = XA_RESULT_SUCCESS;
    XANokiaLinearVolumeItfImpl* impl = GetImpl(self);
    DEBUG_API("->XANokiaLinearVolumeItfImpl_SetCallbackEventsMask");

    if(!impl)
    {
        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
        /* invalid parameter */
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_SetCallbackEventsMask");
        return XA_RESULT_PARAMETER_INVALID;
    }

    impl->eventFlags = eventFlags;

    DEBUG_API("<-XANokiaLinearVolumeItfImpl_SetCallbackEventsMask");
    return ret;    
    }

XAresult XANokiaLinearVolumeItfImpl_GetCallbackEventsMask(XANokiaLinearVolumeItf self, XAuint32 * pEventFlags)
    {
    XAresult ret = XA_RESULT_SUCCESS;
    XANokiaLinearVolumeItfImpl* impl = GetImpl(self);
    DEBUG_API("->XANokiaLinearVolumeItfImpl_GetCallbackEventsMask");

    if(!impl || !pEventFlags)
    {
        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");
        /* invalid parameter */
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetCallbackEventsMask");
        return XA_RESULT_PARAMETER_INVALID;
    }

    *pEventFlags = impl->eventFlags;

    DEBUG_API("<-XANokiaLinearVolumeItfImpl_GetCallbackEventsMask");
    return ret;    
    }

/**
 * XANokiaLinearVolumeItfImpl -specific methods
 **/

/**
 * XANokiaLinearVolumeItfImpl* XANokiaLinearVolumeItfImpl_Create()
 * Description: Allocate and initialize VolumeItfImpl
 **/
XANokiaLinearVolumeItfImpl* XANokiaLinearVolumeItfImpl_Create(XAAdaptationBaseCtx *adapCtx )
{
    XANokiaLinearVolumeItfImpl *self = (XANokiaLinearVolumeItfImpl*)
        calloc(1,sizeof(XANokiaLinearVolumeItfImpl));
    DEBUG_API("->XANokiaLinearVolumeItfImpl_Create");

    if(self)
    {
        /* init itf default implementation */
        self->itf.GetStepCount = XANokiaLinearVolumeItfImpl_GetStepCount;
        self->itf.GetVolumeLevel = XANokiaLinearVolumeItfImpl_GetVolumeLevel;
        self->itf.SetVolumeLevel = XANokiaLinearVolumeItfImpl_SetVolumeLevel;
       	self->itf.RegisterVolumeCallback = XANokiaLinearVolumeItfImpl_RegisterVolumeCallback;        
       	self->itf.SetCallbackEventsMask = XANokiaLinearVolumeItfImpl_SetCallbackEventsMask;
       	self->itf.GetCallbackEventsMask = XANokiaLinearVolumeItfImpl_GetCallbackEventsMask;
        /* init variables */
        self->volumeLevel = 0;

        self->adapCtx = adapCtx;

        XAAdaptationBase_AddEventHandler( adapCtx, &XANokiaLinearVolumeItfImpl_AdaptCb, XA_NOKIALINEARVOLITFEVENTS, self );
        
        self->self = self;
    }

    DEBUG_API("<-XANokiaLinearVolumeItfImpl_Create");
    return self;
}

/**
 * void XANokiaLinearVolumeItfImpl_Free(XANokiaLinearVolumeItfImpl* self)
 * Description: Free all resources reserved at XANokiaLinearVolumeItfImpl_Create
 **/
void XANokiaLinearVolumeItfImpl_Free(XANokiaLinearVolumeItfImpl* self)
{
    DEBUG_API("->XANokiaLinearVolumeItfImpl_Free");
    assert(self==self->self);
    free(self);
    DEBUG_API("<-XANokiaLinearVolumeItfImpl_Free");
}

/* void XANokiaLinearVolumeItfimpl_AdaptCb( void *pHandlerCtx, XAAdaptEvent *event )
 * Description: Event handler for adaptation events
 */
void XANokiaLinearVolumeItfImpl_AdaptCb( void *pHandlerCtx, XAAdaptEvent *event )
{
    XANokiaLinearVolumeItfImpl* impl =(XANokiaLinearVolumeItfImpl*)pHandlerCtx;
    XAboolean eventBoolean = XA_BOOLEAN_FALSE;
    
    DEBUG_API("->XANokiaLinearVolumeItfimpl_AdaptCb");

    if(!impl)
    {
        DEBUG_ERR("XANokiaLinearVolumeItfImpl_AdaptCb, invalid context pointer!");
        DEBUG_API("<-XANokiaLinearVolumeItfImpl_AdaptCb");
        return;
    }
    assert(event);

    if( event->eventid == XA_ADAPT_VOLUME_VOLUME_CHANGED && impl->callback )
    {
        if(XA_NOKIALINEARVOLUME_EVENT_VOLUME_CHANGED & impl->eventFlags)
            {
            DEBUG_API("Volume level changed in adaptation"); 
            impl->callback( impl->cbPtrToSelf, impl->context, XA_NOKIALINEARVOLUME_EVENT_VOLUME_CHANGED, eventBoolean );
            }
    }       
    else
    {
        /* do nothing */
    }
    DEBUG_API("<-XANokiaLinearVolumeItfimpl_AdaptCb");
}