chrome/browser/search/search_suggest/search_suggest_loader_impl.h

// Copyright 2019 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.

#ifndef CHROME_BROWSER_SEARCH_SEARCH_SUGGEST_SEARCH_SUGGEST_LOADER_IMPL_H_
#define CHROME_BROWSER_SEARCH_SEARCH_SUGGEST_SEARCH_SUGGEST_LOADER_IMPL_H_

#include <memory>
#include <string>
#include <vector>

#include "base/macros.h"
#include "base/memory/weak_ptr.h"
#include "base/optional.h"
#include "chrome/browser/search/search_suggest/search_suggest_loader.h"

class GoogleURLTracker;

namespace base {
class Value;
}

namespace network {
class SimpleURLLoader;
class SharedURLLoaderFactory;
}  // namespace network

struct SearchSuggestData;

class SearchSuggestLoaderImpl : public SearchSuggestLoader {
 public:
  SearchSuggestLoaderImpl(
      scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory,
      GoogleURLTracker* google_url_tracker,
      const std::string& application_locale);
  ~SearchSuggestLoaderImpl() override;

  void Load(SearchSuggestionsCallback callback) override;

  GURL GetLoadURLForTesting() const override;

 private:
  class AuthenticatedURLLoader;

  GURL GetApiUrl() const;

  void LoadDone(const network::SimpleURLLoader* simple_loader,
                std::unique_ptr<std::string> response_body);

  void JsonParsed(std::unique_ptr<base::Value> value);
  void JsonParseFailed(const std::string& message);

  void Respond(Status status, const base::Optional<SearchSuggestData>& data);

  scoped_refptr<network::SharedURLLoaderFactory> url_loader_factory_;
  GoogleURLTracker* google_url_tracker_;
  const std::string application_locale_;

  std::vector<SearchSuggestionsCallback> callbacks_;
  std::unique_ptr<AuthenticatedURLLoader> pending_request_;

  base::WeakPtrFactory<SearchSuggestLoaderImpl> weak_ptr_factory_;

  DISALLOW_COPY_AND_ASSIGN(SearchSuggestLoaderImpl);
};

#endif  // CHROME_BROWSER_SEARCH_SEARCH_SUGGEST_SEARCH_SUGGEST_LOADER_IMPL_H_