/*

 * 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: Metadata Insertion Itf Impl

 *

 */

#include <stdio.h>

#include <stdlib.h>

#include <assert.h>

#include "xametadatainsertionitf.h"

#include "xametadataadaptation.h"

#define MAX_TAGS 255

/* XAMetadataInsertionItfImpl* GetImpl(XAMetadataInsertionItf self)

 * Description: Validate interface pointer and cast it to implementation pointer.

 */

static XAMetadataInsertionItfImpl* GetImpl(XAMetadataInsertionItf self)

    {

    if (self)

        {

        XAMetadataInsertionItfImpl* impl =

                (XAMetadataInsertionItfImpl*) (*self);

        if (impl && (impl == impl->self))

            {

            return impl;

            }

        }

    return NULL;

    }

/*****************************************************************************

 * Base interface XAMetadataInsertionItf implementation

 *****************************************************************************/

/* XAMetadataInsertionItfImpl_CreateChildNode

 * Description: Creates a new child node for the given parent.

 */

XAresult XAMetadataInsertionItfImpl_CreateChildNode(

        XAMetadataInsertionItf self, XAint32 parentNodeID, XAuint32 type,

        XAchar *mimeType, XAint32 *pChildNodeID)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAMetadataInsertionItfImpl_CreateChildNode");

    impl = GetImpl(self);

    if (!impl || !mimeType || !pChildNodeID)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        /* invalid parameter */

        ret = XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWGST)

            {

            if (impl->adaptCtx)

                {

                ret = XAMetadataInsertionItfAdapt_CreateChildNode(

                        (XAAdaptationGstCtx*) impl->adaptCtx, parentNodeID,

                        type, mimeType, pChildNodeID);

                }

            else

                {

                ret = XA_RESULT_INTERNAL_ERROR;

                }

            }

        else

            {

            DEBUG_ERR("XA_RESULT_FEATURE_UNSUPPORTED");

            DEBUG_API("<-XAMetadataInsertionItfImpl_CreateChildNode");

            return XA_RESULT_FEATURE_UNSUPPORTED;

            }

    return ret;

    }

/* XAresult XAMetadataInsertionItfImpl_GetSupportedKeysCount

 * Description: A query method to tell if the metadata keys (for writing metadata)

 * can be freely chosen by the application or if they are fixed (for the given node).

 */

XAresult XAMetadataInsertionItfImpl_GetSupportedKeysCount(

        XAMetadataInsertionItf self, XAint32 nodeID, XAboolean *pFreeKeys,

        XAuint32 *pKeyCount, XAuint32 *pEncodingCount)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAMetadataInsertionItfImpl_GetSupportedKeysCount");

    impl = GetImpl(self);

    if (!impl || !pFreeKeys || !pKeyCount || !pEncodingCount)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        /* invalid parameter */

        ret = XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWGST)

            {

            if (impl->adaptCtx)

                {

                ret = XAMetadataInsertionItfAdapt_GetSupportedKeysCount(

                        (XAAdaptationGstCtx*) impl->adaptCtx, nodeID,

                        pFreeKeys, pKeyCount, pEncodingCount);

                }

            else

                {

                ret = XA_RESULT_INTERNAL_ERROR;

                }

            }

        else

            {

            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

            DEBUG_API("<-XAMetadataInsertionItfImpl_GetSupportedKeysCount");

            return XA_RESULT_PARAMETER_INVALID;

            }

    return ret;

    }

/* XAresult XAMetadataInsertionItfImpl_GetKeySize

 * Description: Returns the byte size required for a supported metadata

 * key pointed by the given index

 */

XAresult XAMetadataInsertionItfImpl_GetKeySize(XAMetadataInsertionItf self,

        XAint32 nodeID, XAuint32 keyIndex, XAuint32 *pKeySize)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAMetadataInsertionItfImpl_GetKeySize");

    impl = GetImpl(self);

    if (!impl || !pKeySize)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        /* invalid parameter */

        ret = XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWGST)

            {

            if (impl->adaptCtx)

                {

                ret = XAMetadataInsertionItfAdapt_GetKeySize(

                        (XAAdaptationGstCtx*) impl->adaptCtx, nodeID,

                        keyIndex, pKeySize);

                }

            else

                {

                ret = XA_RESULT_INTERNAL_ERROR;

                }

            }

        else

            {

            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

            DEBUG_API("<-XAMetadataInsertionItfImpl_GetKeySize");

            return XA_RESULT_PARAMETER_INVALID;

            }

    return ret;

    }

/* XAresult XAMetadataInsertionItfImpl_GetKey

 * Description; Returns a XAMetadataInfo structure and associated data

 * referenced by the structure for a supported key

 */

XAresult XAMetadataInsertionItfImpl_GetKey(XAMetadataInsertionItf self,

        XAint32 nodeID, XAuint32 keyIndex, XAuint32 keySize,

        XAMetadataInfo *pKey)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAMetadataInsertionItfImpl_GetKey");

    impl = GetImpl(self);

    if (!impl || !pKey)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        /* invalid parameter */

        ret = XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWGST)

            {

            if (impl->adaptCtx)

                {

                ret = XAMetadataInsertionItfAdapt_GetKey(

                        (XAAdaptationGstCtx*) impl->adaptCtx, nodeID,

                        keyIndex, keySize, pKey);

                }

            else

                {

                ret = XA_RESULT_INTERNAL_ERROR;

                }

            }

        else

            {

            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

            DEBUG_API("<-XAMetadataInsertionItfImpl_GetKey");

            return XA_RESULT_PARAMETER_INVALID;

            }

    return ret;

    }

/* XAresult XAMetadataInsertionItfImpl_GetFreeKeysEncoding

 * Description: A method to be used in case implementation supports

 * free keys for metadata insertion.

 */

XAresult XAMetadataInsertionItfImpl_GetFreeKeysEncoding(

        XAMetadataInsertionItf self, XAint32 nodeID, XAuint32 encodingIndex,

        XAuint32 *pEncoding)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAMetadataInsertionItfImpl_GetFreeKeysEncoding");

    impl = GetImpl(self);

    if (!impl || !pEncoding)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        /* invalid parameter */

        ret = XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWGST)

            {

            if (impl->adaptCtx)

                {

                ret = XAMetadataInsertionItfAdapt_GetFreeKeysEncoding(

                        (XAAdaptationGstCtx*) impl->adaptCtx, nodeID,

                        encodingIndex, pEncoding);

                }

            else

                {

                ret = XA_RESULT_INTERNAL_ERROR;

                }

            }

        else

            {

            DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

            DEBUG_API("<-XAMetadataInsertionItfImpl_GetFreeKeysEncoding");

            return XA_RESULT_PARAMETER_INVALID;

            }

    return ret;

    }

/* XAresult XAMetadataInsertionItfImpl_InsertMetadataItem

 * Description: Inserts the key/value pair to the specified node of the metadata tree.

 */

XAresult XAMetadataInsertionItfImpl_InsertMetadataItem(

        XAMetadataInsertionItf self, XAint32 nodeID, XAMetadataInfo *pKey,

        XAMetadataInfo *pValue, XAboolean overwrite)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    XAresult ret = XA_RESULT_SUCCESS;

    DEBUG_API("->XAMetadataInsertionItfImpl_InsertMetadataItem");

    impl = GetImpl(self);

    if (!impl || !pKey || !pValue)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        /* invalid parameter */

        ret = XA_RESULT_PARAMETER_INVALID;

        }

    else

        {

        if (impl->adaptCtx && impl->adaptCtx->fwtype == FWMgrFWGST)

            {

            if (impl->adaptCtx)

                {

                ret = XAMetadataInsertionItfAdapt_InsertMetadataItem(

                        (XAAdaptationGstCtx*) impl->adaptCtx, nodeID, pKey,

                        pValue, overwrite);

                impl->currentTags.mdeKeys[impl->currentTags.itemcount] = pKey;

                impl->currentTags.mdeValues[impl->currentTags.itemcount]

                        = pValue;

                impl->currentTags.itemcount++;

                }

            else

                {

                ret = XA_RESULT_INTERNAL_ERROR;

                }

            }

        else

            {

            DEBUG_ERR("XA_RESULT_FEATURE_UNSUPPORTED");

            DEBUG_API("<-XAMetadataInsertionItfImpl_GetFreeKeysEncoding");

            return XA_RESULT_FEATURE_UNSUPPORTED;

            }

    return ret;

    }

/* XAresult XAMetadataInsertionItfImpl_RegisterCallback

 * Description: Registers a callback on the object that executes after each of

 * the actual writings of metadata key/value pairs takes place.

 */

XAresult XAMetadataInsertionItfImpl_RegisterCallback(

        XAMetadataInsertionItf self, xaMetadataInsertionCallback callback,

        void *pContext)

    {

    XAMetadataInsertionItfImpl *impl = NULL;

    DEBUG_API("->XAMetadataInsertionItfImpl_RegisterCallback");

    impl = GetImpl(self);

    if (!impl)

        {

        DEBUG_ERR("XA_RESULT_PARAMETER_INVALID");

        DEBUG_API("<-XAMetadataInsertionItfImpl_RegisterCallback");

        /* invalid parameter */

        return XA_RESULT_PARAMETER_INVALID;

        }

    if (callback)

        {

        XAAdaptationBase_AddEventHandler(impl->adaptCtx,

                &XAMetadataInsertionItfImpl_AdaptCb, XA_METADATAEVENTS, impl);

        impl->callback = callback;

        impl->cbcontext = pContext;

        impl->cbPtrToSelf = self;

        }

    else

        {

        XAAdaptationBase_RemoveEventHandler(impl->adaptCtx,

                &XAMetadataInsertionItfImpl_AdaptCb);

        }

    DEBUG_API("<-XAMetadataInsertionItfImpl_RegisterCallback");

    return XA_RESULT_SUCCESS;

    }

/*****************************************************************************

 * XAMetadataTraversalImpl -specific methods

 *****************************************************************************/

/* XAMetadataInsertionItfImpl* XAMetadataInsertionItfImpl_Create()

 * Description: Allocate and initialize MetadataInsertionItfImpl

 */

XAMetadataInsertionItfImpl* XAMetadataInsertionItfImpl_Create(

        XAMediaRecorderImpl* impl)

    {

    XAMetadataInsertionItfImpl* self = (XAMetadataInsertionItfImpl*) calloc(

            1, sizeof(XAMetadataInsertionItfImpl));

    //XAMediaRecorderAdaptationCtx* mCtx = (XAMediaRecorderAdaptationCtx*)(impl->adaptationCtx);

    DEBUG_API("->XAMetadataInsertionItfImpl_Create");

    if (self)

        {

        //if(mCtx->fwtype == FWMgrFWGST)

            {

            /* init itf default implementation */

            self->itf.CreateChildNode

                    = XAMetadataInsertionItfImpl_CreateChildNode;

            self->itf.GetFreeKeysEncoding

                    = XAMetadataInsertionItfImpl_GetFreeKeysEncoding;

            self->itf.GetKey = XAMetadataInsertionItfImpl_GetKey;

            self->itf.GetKeySize = XAMetadataInsertionItfImpl_GetKeySize;

            self->itf.GetSupportedKeysCount

                    = XAMetadataInsertionItfImpl_GetSupportedKeysCount;

            self->itf.InsertMetadataItem

                    = XAMetadataInsertionItfImpl_InsertMetadataItem;

            self->itf.RegisterCallback

                    = XAMetadataInsertionItfImpl_RegisterCallback;

            }

        /* init variables*/

        self->callback = NULL;

        self->cbcontext = NULL;

        self->cbPtrToSelf = NULL;

        self->adaptCtx = impl->adaptationCtx;

        self->currentTags.mdeKeys = calloc(MAX_TAGS, sizeof(XAMetadataInfo*));

        self->currentTags.mdeValues = calloc(MAX_TAGS,

                sizeof(XAMetadataInfo*));

        self->self = self;

    return self;

    }

/* void XAMetadataInsertionItfImpl_Free(XAMetadataInsertionItfImpl* self)

 * Description: Free all resources reserved at XAMetadataInsertionItfImpl_Create()

 */

void XAMetadataInsertionItfImpl_Free(XAMetadataInsertionItfImpl* self)

    {

    DEBUG_API("->XAMetadataInsertionItfImpl_Free");

    assert( self==self->self );

    if (self->callback)

        {

        XAAdaptationBase_RemoveEventHandler(self->adaptCtx,

                &XAMetadataInsertionItfImpl_AdaptCb);

        }

    XAMetadataAdapt_FreeImplTagList(&(self->currentTags), XA_BOOLEAN_FALSE);

    free(self);

    DEBUG_API("<-XAMetadataInsertionItfImpl_Free");

    }

/* With this method, adaptation infroms that tags are written to stream

 */

void XAMetadataInsertionItfImpl_AdaptCb(void *pHandlerCtx,

        XAAdaptEvent *event)

    {

    XAMetadataInsertionItfImpl* impl = NULL;

    XAuint32 idx = 0, nodeID = XA_ROOT_NODE_ID;

    XAboolean result = XA_BOOLEAN_TRUE;

    DEBUG_API("->XAMetadataInsertionItfImpl_AdaptCb");

    impl = (XAMetadataInsertionItfImpl*) pHandlerCtx;

    if (!impl)

        {

        DEBUG_ERR("XAMetadataInsertionItfImpl_AdaptCb, invalid context pointer!");

        DEBUG_API("<-XAMetadataInsertionItfImpl_AdaptCb");

        return;

        }

    if (event && event->eventid == XA_ADAPT_MDE_TAGS_WRITTEN)

        {

        /*here datasize field is used for return value*/

        if (event->datasize != XA_RESULT_SUCCESS)

            {

            DEBUG_ERR_A1("Adaptation failed to write metadata (code %x)!",(int)event->datasize);

            result = XA_BOOLEAN_FALSE;

            }

        /*all tags written, send cb for client to free the memory*/

        for (idx = 0; idx < impl->currentTags.itemcount; idx++)

            {

            if (impl->callback)

                {

                impl->callback(impl->cbPtrToSelf, impl->cbcontext,

                        impl->currentTags.mdeKeys[idx],

                        impl->currentTags.mdeValues[idx], nodeID, result);

                }

            impl->currentTags.mdeKeys[idx] = NULL;

            impl->currentTags.mdeValues[idx] = NULL;

            }

        impl->currentTags.itemcount = 0;

        }

    else

        {

        DEBUG_INFO("unhandled");

        }

    DEBUG_API("<-XAMetadataInsertionItfImpl_AdaptCb");

    }