// Copyright 2020 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 "ios/chrome/browser/discover_feed/discover_feed_service_factory.h"

#include "components/keyed_service/ios/browser_state_dependency_manager.h"
#include "ios/chrome/browser/browser_state/chrome_browser_state.h"
#include "ios/chrome/browser/discover_feed/discover_feed_service.h"
#import "ios/chrome/browser/signin/authentication_service_factory.h"
#include "ios/chrome/browser/signin/identity_manager_factory.h"

#if !defined(__has_feature) || !__has_feature(objc_arc)
#error "This file requires ARC support."
#endif

// static
DiscoverFeedService* DiscoverFeedServiceFactory::GetForBrowserState(
    ChromeBrowserState* browser_state) {
  return static_cast<DiscoverFeedService*>(
      GetInstance()->GetServiceForBrowserState(browser_state, true));
}

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

DiscoverFeedServiceFactory::DiscoverFeedServiceFactory()
    : BrowserStateKeyedServiceFactory(
          "DiscoverFeedService",
          BrowserStateDependencyManager::GetInstance()) {
  DependsOn(AuthenticationServiceFactory::GetInstance());
  DependsOn(IdentityManagerFactory::GetInstance());
}

DiscoverFeedServiceFactory::~DiscoverFeedServiceFactory() = default;

std::unique_ptr<KeyedService>
DiscoverFeedServiceFactory::BuildServiceInstanceFor(
    web::BrowserState* context) const {
  ChromeBrowserState* browser_state =
      ChromeBrowserState::FromBrowserState(context);
  return std::make_unique<DiscoverFeedService>(browser_state);
}