/* -*- 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 "nsJSUtils.h"

#include "nsMemory.h"

#include "nsString.h"

#include "jsapi.h"

#include "mozilla/dom/MozStorageStatementParamsBinding.h"

#include "mozStoragePrivateHelpers.h"

namespace mozilla {

namespace storage {

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

//// StatementParams

NS_IMPL_CYCLE_COLLECTION_WRAPPERCACHE(StatementParams, mWindow)

NS_INTERFACE_TABLE_HEAD(StatementParams)

  NS_WRAPPERCACHE_INTERFACE_TABLE_ENTRY

  NS_INTERFACE_TABLE(StatementParams, nsISupports)

  NS_INTERFACE_TABLE_TO_MAP_SEGUE_CYCLE_COLLECTION(StatementParams)

NS_INTERFACE_MAP_END

NS_IMPL_CYCLE_COLLECTING_ADDREF(StatementParams)

NS_IMPL_CYCLE_COLLECTING_RELEASE(StatementParams)

StatementParams::StatementParams(nsPIDOMWindowInner* aWindow,

                                 Statement* aStatement)

    : mWindow(aWindow), mStatement(aStatement), mParamCount(0) {

  NS_ASSERTION(mStatement != nullptr, "mStatement is null");

  (void)mStatement->GetParameterCount(&mParamCount);

}

JSObject* StatementParams::WrapObject(JSContext* aCx,

                                      JS::Handle<JSObject*> aGivenProto) {

  return dom::MozStorageStatementParamsBinding::Wrap(aCx, this, aGivenProto);

}

void StatementParams::NamedGetter(JSContext* aCx, const nsAString& aName,

                                  bool& aFound,

                                  JS::MutableHandle<JS::Value> aResult,

                                  mozilla::ErrorResult& aRv) {

  if (!mStatement) {

    aRv.Throw(NS_ERROR_NOT_INITIALIZED);

    return;

  }

  // Unfortunately there's no API that lets us return the parameter value.

  aFound = false;

}

void StatementParams::NamedSetter(JSContext* aCx, const nsAString& aName,

                                  JS::Handle<JS::Value> aValue,

                                  mozilla::ErrorResult& aRv) {

  if (!mStatement) {

    aRv.Throw(NS_ERROR_NOT_INITIALIZED);

    return;

  }

  NS_ConvertUTF16toUTF8 name(aName);

  // Check to see if there's a parameter with this name.

  nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));

  if (!variant) {

    aRv.Throw(NS_ERROR_UNEXPECTED);

    return;

  }

  aRv = mStatement->BindByName(name, variant);

}

void StatementParams::GetSupportedNames(nsTArray<nsString>& aNames) {

  if (!mStatement) {

    return;

  }

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

    // Get the name of our parameter.

    nsAutoCString name;

    nsresult rv = mStatement->GetParameterName(i, name);

    if (NS_WARN_IF(NS_FAILED(rv))) {

      return;

    }

    // But drop the first character, which is going to be a ':'.

    name = Substring(name, 1);

    aNames.AppendElement(NS_ConvertUTF8toUTF16(name));

  }

}

void StatementParams::IndexedGetter(JSContext* aCx, uint32_t aIndex,

                                    bool& aFound,

                                    JS::MutableHandle<JS::Value> aResult,

                                    mozilla::ErrorResult& aRv) {

  if (!mStatement) {

    aRv.Throw(NS_ERROR_NOT_INITIALIZED);

    return;

  }

  // Unfortunately there's no API that lets us return the parameter value.

  aFound = false;

}

void StatementParams::IndexedSetter(JSContext* aCx, uint32_t aIndex,

                                    JS::Handle<JS::Value> aValue,

                                    mozilla::ErrorResult& aRv) {

  if (!mStatement) {

    aRv.Throw(NS_ERROR_NOT_INITIALIZED);

    return;

  }

  nsCOMPtr<nsIVariant> variant(convertJSValToVariant(aCx, aValue));

  if (!variant) {

    aRv.Throw(NS_ERROR_UNEXPECTED);

    return;

  }

  aRv = mStatement->BindByIndex(aIndex, variant);

}

}  // namespace storage

}  // namespace mozilla