/** @file
  
  VfrCompiler error handler.

Copyright (c) 2004 - 2008, Intel Corporation                                                         
All rights reserved. This program and the accompanying materials                          
are licensed and made available under the terms and conditions of the BSD License         
which accompanies this distribution.  The full text of the license may be found at        
http://opensource.org/licenses/bsd-license.php                                            
                                                                                          
THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,                     
WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.             

**/

#include "stdio.h"
#include "string.h"
#include "stdlib.h"
#include "VfrError.h"
#include "EfiUtilityMsgs.h"

static SVFR_ERROR_HANDLE VFR_ERROR_HANDLE_TABLE [] = {
  { VFR_RETURN_SUCCESS, NULL },
  { VFR_RETURN_ERROR_SKIPED, NULL },
  { VFR_RETURN_FATAL_ERROR, ": fatal error!!" },

  { VFR_RETURN_MISMATCHED, ": unexpected token" },
  { VFR_RETURN_INVALID_PARAMETER, ": invalid parameter" },
  { VFR_RETURN_OUT_FOR_RESOURCES, ": system out of memory" },
  { VFR_RETURN_UNSUPPORTED, ": unsupported" },
  { VFR_RETURN_REDEFINED, ": already defined" },
  { VFR_RETURN_FORMID_REDEFINED, ": form id already defined" },
  { VFR_RETURN_QUESTIONID_REDEFINED, ": question id already defined" },
  { VFR_RETURN_VARSTOREID_REDEFINED, ": varstore id already defined" },
  { VFR_RETURN_UNDEFINED, ": undefined" },
  { VFR_RETURN_VAR_NOTDEFINED_BY_QUESTION, ": some variable has not defined by a question"},
  { VFR_RETURN_GET_EFIVARSTORE_ERROR, ": get efi varstore error"},
  { VFR_RETURN_EFIVARSTORE_USE_ERROR, ": can not use the efi varstore like this" },
  { VFR_RETURN_EFIVARSTORE_SIZE_ERROR, ": unsupport efi varstore size should be <= 8 bytes" },
  { VFR_RETURN_GET_NVVARSTORE_ERROR, ": get name value varstore error" },
  { VFR_RETURN_QVAR_REUSE, ": variable reused by more than one question" },
  { VFR_RETURN_FLAGS_UNSUPPORTED, ": flags unsupported" },
  { VFR_RETURN_ERROR_ARRARY_NUM, ": array number error, the valid value is in (0 ~ MAX_INDEX-1) for UEFI vfr and in (1 ~ MAX_INDEX) for Framework Vfr" },
  { VFR_RETURN_DATA_STRING_ERROR, ": data field string error or not support"},
  { VFR_RETURN_DEFAULT_VALUE_REDEFINED, ": default value re-defined with different value"},
  { VFR_RETURN_CONSTANT_ONLY, ": only constant is allowed in the expression"},
  { VFR_RETURN_CODEUNDEFINED, ": undefined Error Code" }
};

CVfrErrorHandle::CVfrErrorHandle (
  VOID
  )
{
  mInputFileName       = NULL;
  mScopeRecordListHead = NULL;
  mScopeRecordListTail = NULL;
  mVfrErrorHandleTable = VFR_ERROR_HANDLE_TABLE;
}

CVfrErrorHandle::~CVfrErrorHandle (
  VOID
  )
{
  SVfrFileScopeRecord *pNode = NULL;

  if (mInputFileName != NULL) {
    delete mInputFileName;
  }

  while (mScopeRecordListHead != NULL) {
    pNode = mScopeRecordListHead;
    mScopeRecordListHead = mScopeRecordListHead->mNext;
    delete pNode;
  }

  mScopeRecordListHead = NULL;
  mScopeRecordListTail = NULL;
  mVfrErrorHandleTable = NULL;
}

VOID
CVfrErrorHandle::SetInputFile (
  IN CHAR8    *InputFile
  )
{
  if (InputFile != NULL) {
    mInputFileName = new CHAR8[strlen(InputFile) + 1];
    strcpy (mInputFileName, InputFile);
  }
}

SVfrFileScopeRecord::SVfrFileScopeRecord (
  IN CHAR8    *Record, 
  IN UINT32   LineNum
  )
{
  UINT32      Index;
  CHAR8       *FileName = NULL;
  CHAR8       *Str      = NULL;

  mWholeScopeLine      = LineNum;
  mNext                = NULL;

  Str = strchr (Record, ' ');
  mScopeLineStart = atoi (++Str);

  Str = strchr (Str, '\"');
  FileName = ++Str;

  while((Str = strstr (FileName, "\\\\")) != NULL) {
    FileName = Str + 2;
  }
  if ((mFileName = new CHAR8[strlen(FileName)]) != NULL) {
    for (Index = 0; FileName[Index] != '\"'; Index++) {
      mFileName[Index] = FileName[Index];
    }
    mFileName[Index] = '\0';
  }

  return;
}

SVfrFileScopeRecord::~SVfrFileScopeRecord (
  VOID
  )
{
  if (mFileName != NULL) {
    delete mFileName;
  }
}

VOID
CVfrErrorHandle::ParseFileScopeRecord (
  IN CHAR8     *Record, 
  IN UINT32    WholeScopeLine
  )
{
  CHAR8               *FullPathName = NULL;
  SVfrFileScopeRecord *pNode        = NULL;

  if (Record == NULL) {
    return;
  }

  if ((pNode = new SVfrFileScopeRecord(Record, WholeScopeLine)) == NULL) {
    return;
  }

  if (mScopeRecordListHead == NULL) {
    mScopeRecordListTail = mScopeRecordListHead = pNode;
  } else {
    mScopeRecordListTail->mNext = pNode;
    mScopeRecordListTail        = pNode;
  }
}

VOID
CVfrErrorHandle::GetFileNameLineNum (
  IN  UINT32 LineNum,
  OUT CHAR8  **FileName,
  OUT UINT32 *FileLine
  )
{
  SVfrFileScopeRecord *pNode    = NULL;

  if ((FileName == NULL) || (FileLine == NULL)) {
    return;
  }

  *FileName = NULL;
  *FileLine = 0xFFFFFFFF;

  //
  // Some errors occur before scope record list been built.
  //
  if (mScopeRecordListHead == NULL) {
    *FileLine = LineNum;
    *FileName = mInputFileName;
    return ;
  }

  for (pNode = mScopeRecordListHead; pNode->mNext != NULL; pNode = pNode->mNext) {
    if ((LineNum > pNode->mWholeScopeLine) && (pNode->mNext->mWholeScopeLine > LineNum)) {
      *FileName = pNode->mFileName;
      *FileLine = LineNum - pNode->mWholeScopeLine + pNode->mScopeLineStart - 1;
      return ;
    }
  }

  *FileName = pNode->mFileName;
  *FileLine = LineNum - pNode->mWholeScopeLine + pNode->mScopeLineStart - 1;
}

VOID
CVfrErrorHandle::PrintMsg (
  IN UINT32               LineNum,
  IN CHAR8                *TokName,
  IN CHAR8                *MsgType,
  IN CHAR8                *ErrorMsg
  )
{
  CHAR8                  *FileName = NULL;
  UINT32                 FileLine;

  GetFileNameLineNum (LineNum, &FileName, &FileLine);
  Error (FileName, FileLine, 0x3000, TokName, "\t%s\n", ErrorMsg);
}

UINT8
CVfrErrorHandle::HandleError (
  IN EFI_VFR_RETURN_CODE  ErrorCode,
  IN UINT32               LineNum,
  IN CHAR8                *TokName
  )
{
  UINT32                 Index;
  CHAR8                  *FileName = NULL;
  UINT32                 FileLine;
  CHAR8                  *ErrorMsg = NULL;

  if (mVfrErrorHandleTable == NULL) {
    return 1;
  }

  for (Index = 0; mVfrErrorHandleTable[Index].mErrorCode != VFR_RETURN_CODEUNDEFINED; Index++) {
    if (ErrorCode == mVfrErrorHandleTable[Index].mErrorCode) {
      ErrorMsg = mVfrErrorHandleTable[Index].mErrorMsg;
      break;
    }
  }

  if (ErrorMsg != NULL) {
    GetFileNameLineNum (LineNum, &FileName, &FileLine);
    Error (FileName, FileLine, 0x3000, TokName, "\t%s\n", ErrorMsg);
    return 1;
  } else {
    return 0;
  }
}

CVfrErrorHandle gCVfrErrorHandle;