// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "components/feedback/content/feedback_uploader_factory.h"

#include "base/no_destructor.h"
#include "components/feedback/feedback_uploader.h"
#include "components/keyed_service/content/browser_context_dependency_manager.h"
#include "content/public/browser/browser_context.h"
#include "content/public/browser/storage_partition.h"

namespace feedback {

namespace {

// Helper function to create an URLLoaderFactory for the FeedbackUploader from
// the BrowserContext storage partition. As creating the storage partition can
// be expensive, this is delayed so that it does not happen during startup.
scoped_refptr<network::SharedURLLoaderFactory>
CreateURLLoaderFactoryForBrowserContext(content::BrowserContext* context) {
  return context->GetDefaultStoragePartition()
      ->GetURLLoaderFactoryForBrowserProcess();
}

class FeedbackUploaderImpl final : public FeedbackUploader {
 public:
  FeedbackUploaderImpl(
      bool is_off_the_record,
      const base::FilePath& state_path,
      SharedURLLoaderFactoryGetter shared_url_loader_factory_getter)
      : FeedbackUploader(is_off_the_record,
                         state_path,
                         std::move(shared_url_loader_factory_getter)) {}
  FeedbackUploaderImpl(const FeedbackUploaderImpl&) = delete;
  FeedbackUploaderImpl& operator=(const FeedbackUploaderImpl&) = delete;

  ~FeedbackUploaderImpl() override = default;

  base::WeakPtr<FeedbackUploader> AsWeakPtr() override {
    return weak_ptr_factory_.GetWeakPtr();
  }

 private:
  base::WeakPtrFactory<FeedbackUploaderImpl> weak_ptr_factory_{this};
};

}  // namespace

// static
FeedbackUploaderFactory* FeedbackUploaderFactory::GetInstance() {
  static base::NoDestructor<FeedbackUploaderFactory> instance;
  return instance.get();
}

// static
FeedbackUploader* FeedbackUploaderFactory::GetForBrowserContext(
    content::BrowserContext* context) {
  return static_cast<FeedbackUploader*>(
      GetInstance()->GetServiceForBrowserContext(context, true));
}

FeedbackUploaderFactory::FeedbackUploaderFactory(const char* service_name)
    : BrowserContextKeyedServiceFactory(
          service_name,
          BrowserContextDependencyManager::GetInstance()) {}

FeedbackUploaderFactory::FeedbackUploaderFactory()
    : BrowserContextKeyedServiceFactory(
          "feedback::FeedbackUploader",
          BrowserContextDependencyManager::GetInstance()) {}

FeedbackUploaderFactory::~FeedbackUploaderFactory() = default;

std::unique_ptr<KeyedService>
FeedbackUploaderFactory::BuildServiceInstanceForBrowserContext(
    content::BrowserContext* context) const {
  // The returned FeedbackUploaderImpl lifetime is bound to that of
  // BrowserContext by the KeyedServiceFactory infrastructure. The
  // FeedbackUploader will be destroyed before the BrowserContext,
  // thus base::Unretained() usage is safe.
  return std::make_unique<FeedbackUploaderImpl>(
      context->IsOffTheRecord(), context->GetPath(),
      base::BindOnce(&CreateURLLoaderFactoryForBrowserContext,
                     base::Unretained(context)));
}

content::BrowserContext* FeedbackUploaderFactory::GetBrowserContextToUse(
    content::BrowserContext* context) const {
  return context;
}

}  // namespace feedback