// Copyright 2018 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef CHROME_BROWSER_WEB_APPLICATIONS_TEST_FAKE_DATA_RETRIEVER_H_
#define CHROME_BROWSER_WEB_APPLICATIONS_TEST_FAKE_DATA_RETRIEVER_H_

#include <memory>
#include <optional>
#include <string>

#include "base/functional/callback.h"
#include "base/memory/weak_ptr.h"
#include "chrome/browser/web_applications/web_app_constants.h"
#include "chrome/browser/web_applications/web_app_install_info.h"
#include "chrome/browser/web_applications/web_app_install_utils.h"
#include "chrome/browser/web_applications/web_contents/web_app_data_retriever.h"
#include "components/webapps/browser/installable/installable_logging.h"
#include "components/webapps/browser/installable/installable_params.h"
#include "third_party/blink/public/mojom/manifest/manifest.mojom-forward.h"
#include "url/gurl.h"

namespace web_app {

// All WebAppDataRetriever operations are async, so this class posts tasks
// when running callbacks to simulate async behavior in tests as well.
// This class is essential for mocking the interaction with a `WebContents`
// during the web app installation flow. It allows tests to provide artificial
// manifest data, icon bitmaps, and installability checks without needing a
// real web page or network connection.
class FakeDataRetriever : public WebAppDataRetriever {
 public:
  FakeDataRetriever();
  FakeDataRetriever(const FakeDataRetriever&) = delete;
  FakeDataRetriever& operator=(const FakeDataRetriever&) = delete;
  ~FakeDataRetriever() override;

  // WebAppDataRetriever:
  void GetWebAppInstallInfo(content::WebContents* web_contents,
                            GetWebAppInstallInfoCallback callback) override;
  void CheckInstallabilityAndRetrieveManifest(
      content::WebContents* web_contents,
      CheckInstallabilityCallback callback,
      std::optional<webapps::InstallableParams> params) override;
  void GetIcons(content::WebContents* web_contents,
                const IconUrlSizeSet& icon_urls,
                bool skip_page_favicons,
                bool fail_all_if_any_fail,
                GetIconsCallback callback) override;

  // Set info to respond on |GetWebAppInstallInfo|.
  void SetWebPageMetadata(
      const GURL& last_committed_url,
      const std::u16string& title,
      std::optional<webapps::mojom::WebPageMetadata> opt_metadata);
  // Set arguments to respond on |CheckInstallabilityAndRetrieveManifest|.
  void SetManifest(blink::mojom::ManifestPtr manifest,
                   webapps::InstallableStatusCode error_code);
  // Set icons to respond on |GetIcons|.
  void SetIcons(IconsMap icons_map);

  // Sets `IconsDownloadedResult` to respond on `GetIcons`.
  void SetIconsDownloadedResult(IconsDownloadedResult result);
  // Sets `DownloadedIconsHttpResults` to respond on `GetIcons`.
  void SetDownloadedIconsHttpResults(
      DownloadedIconsHttpResults icons_http_results);

  void SetDestructionCallback(base::OnceClosure callback);

  WebAppInstallInfo& web_app_info() { return *web_app_info_; }

  // Builds minimal data for install to succeed. Data includes: empty renderer
  // info, manifest with |url| and |scope|, installability checked as |true|,
  // empty icons.
  void BuildDefaultDataToRetrieve(const GURL& url, const GURL& scope);

 private:
  void ScheduleCompletionCallback();
  void CallCompletionCallback();

  base::OnceClosure completion_callback_;
  std::unique_ptr<WebAppInstallInfo> web_app_info_;

  blink::mojom::ManifestPtr manifest_;
  GURL manifest_url_;
  webapps::InstallableStatusCode error_code_ =
      webapps::InstallableStatusCode::NO_MANIFEST;

  IconsMap icons_map_;

  IconsDownloadedResult icons_downloaded_result_ =
      IconsDownloadedResult::kCompleted;
  DownloadedIconsHttpResults icons_http_results_;

  base::OnceClosure destruction_callback_;

  base::WeakPtrFactory<FakeDataRetriever> weak_ptr_factory_{this};
};

}  // namespace web_app

#endif  // CHROME_BROWSER_WEB_APPLICATIONS_TEST_FAKE_DATA_RETRIEVER_H_