/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-

 * vim: sw=2 ts=2 et lcs=trail\:.,tab\:>~ :

 * This Source Code Form is subject to the terms of the Mozilla Public

 * License, v. 2.0. If a copy of the MPL was not distributed with this

 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "nsString.h"

#include "sqlite3.h"

#include "mozStoragePrivateHelpers.h"

#include "Variant.h"

#include "mozStorageRow.h"

namespace mozilla {

namespace storage {

////////////////////////////////////////////////////////////////////////////////

//// Row

nsresult

Row::initialize(sqlite3_stmt *aStatement)

{

  // Get the number of results

  mNumCols = ::sqlite3_column_count(aStatement);

  // Start copying over values

  for (uint32_t i = 0; i < mNumCols; i++) {

    // Store the value

    nsIVariant *variant = nullptr;

    int type = ::sqlite3_column_type(aStatement, i);

    switch (type) {

      case SQLITE_INTEGER:

        variant = new IntegerVariant(::sqlite3_column_int64(aStatement, i));

        break;

      case SQLITE_FLOAT:

        variant = new FloatVariant(::sqlite3_column_double(aStatement, i));

        break;

      case SQLITE_TEXT:

      {

        nsDependentString str(

          static_cast<const char16_t *>(::sqlite3_column_text16(aStatement, i))

        );

        variant = new TextVariant(str);

        break;

      }

      case SQLITE_NULL:

        variant = new NullVariant();

        break;

      case SQLITE_BLOB:

      {

        int size = ::sqlite3_column_bytes(aStatement, i);

        const void *data = ::sqlite3_column_blob(aStatement, i);

        variant = new BlobVariant(std::pair<const void *, int>(data, size));

        break;

      }

      default:

        return NS_ERROR_UNEXPECTED;

    }

    NS_ENSURE_TRUE(variant, NS_ERROR_OUT_OF_MEMORY);

    // Insert into our storage array

    NS_ENSURE_TRUE(mData.InsertObjectAt(variant, i), NS_ERROR_OUT_OF_MEMORY);

    // Associate the name (if any) with the index

    const char *name = ::sqlite3_column_name(aStatement, i);

    if (!name) break;

    nsAutoCString colName(name);

    mNameHashtable.Put(colName, i);

  }

  return NS_OK;

}

/**

 * Note:  This object is only ever accessed on one thread at a time.  It it not

 *        threadsafe, but it does need threadsafe AddRef and Release.

 */

NS_IMPL_ISUPPORTS(

  Row,

  mozIStorageRow,

  mozIStorageValueArray

)

////////////////////////////////////////////////////////////////////////////////

//// mozIStorageRow

NS_IMETHODIMP

Row::GetResultByIndex(uint32_t aIndex,

                      nsIVariant **_result)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  NS_ADDREF(*_result = mData.ObjectAt(aIndex));

  return NS_OK;

}

NS_IMETHODIMP

Row::GetResultByName(const nsACString &aName,

                     nsIVariant **_result)

{

  uint32_t index;

  NS_ENSURE_TRUE(mNameHashtable.Get(aName, &index), NS_ERROR_NOT_AVAILABLE);

  return GetResultByIndex(index, _result);

}

////////////////////////////////////////////////////////////////////////////////

//// mozIStorageValueArray

NS_IMETHODIMP

Row::GetNumEntries(uint32_t *_entries)

{

  *_entries = mNumCols;

  return NS_OK;

}

NS_IMETHODIMP

Row::GetTypeOfIndex(uint32_t aIndex,

                    int32_t *_type)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  uint16_t type;

  (void)mData.ObjectAt(aIndex)->GetDataType(&type);

  switch (type) {

    case nsIDataType::VTYPE_INT32:

    case nsIDataType::VTYPE_INT64:

      *_type = mozIStorageValueArray::VALUE_TYPE_INTEGER;

      break;

    case nsIDataType::VTYPE_DOUBLE:

      *_type = mozIStorageValueArray::VALUE_TYPE_FLOAT;

      break;

    case nsIDataType::VTYPE_ASTRING:

      *_type = mozIStorageValueArray::VALUE_TYPE_TEXT;

      break;

    case nsIDataType::VTYPE_ARRAY:

      *_type = mozIStorageValueArray::VALUE_TYPE_BLOB;

      break;

    default:

      *_type = mozIStorageValueArray::VALUE_TYPE_NULL;

      break;

  }

  return NS_OK;

}

NS_IMETHODIMP

Row::GetInt32(uint32_t aIndex,

              int32_t *_value)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  return mData.ObjectAt(aIndex)->GetAsInt32(_value);

}

NS_IMETHODIMP

Row::GetInt64(uint32_t aIndex,

              int64_t *_value)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  return mData.ObjectAt(aIndex)->GetAsInt64(_value);

}

NS_IMETHODIMP

Row::GetDouble(uint32_t aIndex,

               double *_value)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  return mData.ObjectAt(aIndex)->GetAsDouble(_value);

}

NS_IMETHODIMP

Row::GetUTF8String(uint32_t aIndex,

                   nsACString &_value)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  return mData.ObjectAt(aIndex)->GetAsAUTF8String(_value);

}

NS_IMETHODIMP

Row::GetString(uint32_t aIndex,

               nsAString &_value)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  return mData.ObjectAt(aIndex)->GetAsAString(_value);

}

NS_IMETHODIMP

Row::GetBlob(uint32_t aIndex,

             uint32_t *_size,

             uint8_t **_blob)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  uint16_t type;

  nsIID interfaceIID;

  return mData.ObjectAt(aIndex)->GetAsArray(&type, &interfaceIID, _size,

                                            reinterpret_cast<void **>(_blob));

}

NS_IMETHODIMP

Row::GetBlobAsString(uint32_t aIndex, nsAString& aValue)

{

  return DoGetBlobAsString(this, aIndex, aValue);

}

NS_IMETHODIMP

Row::GetBlobAsUTF8String(uint32_t aIndex, nsACString& aValue)

{

  return DoGetBlobAsString(this, aIndex, aValue);

}

NS_IMETHODIMP

Row::GetIsNull(uint32_t aIndex,

               bool *_isNull)

{

  ENSURE_INDEX_VALUE(aIndex, mNumCols);

  NS_ENSURE_ARG_POINTER(_isNull);

  uint16_t type;

  (void)mData.ObjectAt(aIndex)->GetDataType(&type);

  *_isNull = type == nsIDataType::VTYPE_EMPTY;

  return NS_OK;

}

NS_IMETHODIMP

Row::GetSharedUTF8String(uint32_t,

                         uint32_t *,

                         char const **)

{

  return NS_ERROR_NOT_IMPLEMENTED;

}

NS_IMETHODIMP

Row::GetSharedString(uint32_t,

                     uint32_t *,

                     const char16_t **)

{

  return NS_ERROR_NOT_IMPLEMENTED;

}

NS_IMETHODIMP

Row::GetSharedBlob(uint32_t,

                   uint32_t *,

                   const uint8_t **)

{

  return NS_ERROR_NOT_IMPLEMENTED;

}

} // namespace storage

} // namespace mozilla