/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

/* vim: set ts=8 sts=2 et sw=2 tw=80: */

/* 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 "mozilla/dom/MerchantValidationEvent.h"

#include "nsNetCID.h"

#include "mozilla/dom/PaymentRequest.h"

#include "mozilla/dom/Location.h"

#include "mozilla/dom/URL.h"

#include "nsIURI.h"

#include "nsNetUtil.h"

#include "nsContentUtils.h"

namespace mozilla {

namespace dom {

NS_IMPL_CYCLE_COLLECTION_INHERITED(MerchantValidationEvent, Event, mRequest)

NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN_INHERITED(MerchantValidationEvent, Event)

NS_IMPL_CYCLE_COLLECTION_TRACE_END

NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(MerchantValidationEvent)

NS_INTERFACE_MAP_END_INHERITING(Event)

NS_IMPL_ADDREF_INHERITED(MerchantValidationEvent, Event)

NS_IMPL_RELEASE_INHERITED(MerchantValidationEvent, Event)

// User-land code constructor

already_AddRefed<MerchantValidationEvent>

MerchantValidationEvent::Constructor(

  const GlobalObject& aGlobal,

  const nsAString& aType,

  const MerchantValidationEventInit& aEventInitDict,

  ErrorResult& aRv)

{

  // validate passed URL

  nsCOMPtr<mozilla::dom::EventTarget> owner =

    do_QueryInterface(aGlobal.GetAsSupports());

  return Constructor(owner, aType, aEventInitDict, aRv);

}

// Internal JS object constructor

already_AddRefed<MerchantValidationEvent>

MerchantValidationEvent::Constructor(

  EventTarget* aOwner,

  const nsAString& aType,

  const MerchantValidationEventInit& aEventInitDict,

  ErrorResult& aRv)

{

  RefPtr<MerchantValidationEvent> e = new MerchantValidationEvent(aOwner);

  bool trusted = e->Init(aOwner);

  e->InitEvent(aType, aEventInitDict.mBubbles, aEventInitDict.mCancelable);

  if (!e->init(aEventInitDict, aRv)) {

    return nullptr;

  }

  e->SetTrusted(trusted);

  e->SetComposed(aEventInitDict.mComposed);

  return e.forget();

}

bool

MerchantValidationEvent::init(const MerchantValidationEventInit& aEventInitDict,

                              ErrorResult& aRv)

{

  // Check methodName is valid

  if (!aEventInitDict.mMethodName.IsEmpty()) {

    nsString errMsg;

    auto rv = PaymentRequest::IsValidPaymentMethodIdentifier(

      aEventInitDict.mMethodName, errMsg);

    if (NS_FAILED(rv)) {

      aRv.ThrowRangeError<MSG_ILLEGAL_RANGE_PR_CONSTRUCTOR>(errMsg);

      return false;

    }

  }

  SetMethodName(aEventInitDict.mMethodName);

  nsCOMPtr<nsPIDOMWindowInner> window = do_QueryInterface(GetParentObject());

  auto doc = window->GetExtantDoc();

  if (!doc) {

    aRv.Throw(NS_ERROR_UNEXPECTED);

    return false;

  }

  auto principal = doc->NodePrincipal();

  nsCOMPtr<nsIURI> baseURI;

  principal->GetURI(getter_AddRefs(baseURI));

  nsresult rv;

  nsCOMPtr<nsIURI> validationUri;

  rv = NS_NewURI(getter_AddRefs(validationUri),

                 aEventInitDict.mValidationURL,

                 nullptr,

                 baseURI,

                 nsContentUtils::GetIOService());

  if (NS_WARN_IF(NS_FAILED(rv))) {

    aRv.ThrowTypeError<MSG_INVALID_URL>(aEventInitDict.mValidationURL);

    return false;

  }

  nsAutoCString utf8href;

  rv = validationUri->GetSpec(utf8href);

  if (NS_FAILED(rv)) {

    aRv.Throw(NS_ERROR_DOM_BAD_URI);

    return false;

  }

  CopyUTF8toUTF16(utf8href, mValidationURL);

  return true;

}

MerchantValidationEvent::MerchantValidationEvent(EventTarget* aOwner)

  : Event(aOwner, nullptr, nullptr)

  , mWaitForUpdate(false)

{

  MOZ_ASSERT(aOwner);

}

void

MerchantValidationEvent::ResolvedCallback(JSContext* aCx,

                                          JS::Handle<JS::Value> aValue)

{

  MOZ_ASSERT(aCx);

  MOZ_ASSERT(mRequest);

  if (!mWaitForUpdate) {

    return;

  }

  mWaitForUpdate = false;

  // If we eventually end up supporting merchant validation

  // we would validate `aValue` here, as per:

  // https://w3c.github.io/payment-request/#validate-merchant-s-details-algorithm

  //

  // Right now, MerchantValidationEvent is only implemented for standards

  // conformance, which is why at this point we throw a

  // NS_ERROR_DOM_NOT_SUPPORTED_ERR.

  mRequest->AbortUpdate(NS_ERROR_DOM_NOT_SUPPORTED_ERR, false);

  mRequest->SetUpdating(false);

}

void

MerchantValidationEvent::RejectedCallback(JSContext* aCx,

                                          JS::Handle<JS::Value> aValue)

{

  MOZ_ASSERT(mRequest);

  if (!mWaitForUpdate) {

    return;

  }

  mWaitForUpdate = false;

  mRequest->AbortUpdate(NS_ERROR_DOM_ABORT_ERR, false);

  mRequest->SetUpdating(false);

}

void

MerchantValidationEvent::Complete(Promise& aPromise, ErrorResult& aRv)

{

  if (!IsTrusted()) {

    aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);

    return;

  }

  MOZ_ASSERT(mRequest);

  if (mWaitForUpdate || !mRequest->ReadyForUpdate()) {

    aRv.Throw(NS_ERROR_DOM_INVALID_STATE_ERR);

    return;

  }

  aPromise.AppendNativeHandler(this);

  StopPropagation();

  StopImmediatePropagation();

  mWaitForUpdate = true;

  mRequest->SetUpdating(true);

}

void

MerchantValidationEvent::SetRequest(PaymentRequest* aRequest)

{

  MOZ_ASSERT(IsTrusted());

  MOZ_ASSERT(!mRequest);

  MOZ_ASSERT(aRequest);

  mRequest = aRequest;

}

void

MerchantValidationEvent::GetValidationURL(nsAString& aValidationURL)

{

  aValidationURL.Assign(mValidationURL);

}

void

MerchantValidationEvent::SetValidationURL(nsAString& aValidationURL)

{

  mValidationURL.Assign(aValidationURL);

}

void

MerchantValidationEvent::GetMethodName(nsAString& aMethodName)

{

  aMethodName.Assign(mMethodName);

}

void

MerchantValidationEvent::SetMethodName(const nsAString& aMethodName)

{

  mMethodName.Assign(aMethodName);

}

MerchantValidationEvent::~MerchantValidationEvent() {}

JSObject*

MerchantValidationEvent::WrapObjectInternal(JSContext* aCx,

                                            JS::Handle<JSObject*> aGivenProto)

{

  return MerchantValidationEvent_Binding::Wrap(aCx, this, aGivenProto);

}

} // namespace dom

} // namespace mozilla