// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "flutter/content_handler/application_controller_impl.h"

#include <utility>

#include "application/lib/app/connect.h"
#include "flutter/content_handler/app.h"
#include "flutter/content_handler/runtime_holder.h"
#include "lib/ftl/logging.h"
#include "lib/mtl/vmo/vector.h"

namespace flutter_runner {

ApplicationControllerImpl::ApplicationControllerImpl(
    App* app,
    app::ApplicationPackagePtr application,
    app::ApplicationStartupInfoPtr startup_info,
    fidl::InterfaceRequest<app::ApplicationController> controller)
    : app_(app), binding_(this) {
  if (controller.is_pending()) {
    binding_.Bind(std::move(controller));
    binding_.set_connection_error_handler([this] {
      app_->Destroy(this);
      // |this| has been deleted at this point.
    });
  }

  std::vector<char> bundle;
  if (!mtl::VectorFromVmo(std::move(application->data), &bundle)) {
    FTL_LOG(ERROR) << "Failed to receive bundle.";
    return;
  }

  // TODO(jeffbrown): Decide what to do with command-line arguments and
  // startup handles.

  if (startup_info->launch_info->services) {
    service_provider_bridge_.AddBinding(
        std::move(startup_info->launch_info->services));
  }

  if (startup_info->launch_info->service_request.is_valid()) {
    service_provider_bridge_.ServeDirectory(
        std::move(startup_info->launch_info->service_request));
  }

  service_provider_bridge_.AddService<mozart::ViewProvider>(
      [this](fidl::InterfaceRequest<mozart::ViewProvider> request) {
    view_provider_bindings_.AddBinding(this, std::move(request));
  });

  app::ServiceProviderPtr service_provider;
  auto request = service_provider.NewRequest();
  service_provider_bridge_.set_backend(std::move(service_provider));

  url_ = startup_info->launch_info->url;
  runtime_holder_.reset(new RuntimeHolder());
  runtime_holder_->Init(
      app::ApplicationContext::CreateFrom(std::move(startup_info)),
      std::move(request), std::move(bundle));
}

ApplicationControllerImpl::~ApplicationControllerImpl() = default;

void ApplicationControllerImpl::Kill() {
  runtime_holder_.reset();
  app_->Destroy(this);
  // |this| has been deleted at this point.
}

void ApplicationControllerImpl::Detach() {
  binding_.set_connection_error_handler(ftl::Closure());
}

void ApplicationControllerImpl::CreateView(
    fidl::InterfaceRequest<mozart::ViewOwner> view_owner_request,
    fidl::InterfaceRequest<app::ServiceProvider> services) {
  runtime_holder_->CreateView(url_, std::move(view_owner_request),
                              std::move(services));
}

Dart_Port ApplicationControllerImpl::GetUIIsolateMainPort() {
  if (!runtime_holder_)
    return ILLEGAL_PORT;
  return runtime_holder_->GetUIIsolateMainPort();
}

std::string ApplicationControllerImpl::GetUIIsolateName() {
  if (!runtime_holder_) {
    return "";
  }
  return runtime_holder_->GetUIIsolateName();
}

}  // namespace flutter_runner