// Copyright 2025 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_ACTOR_TOOL_REQUEST_VARIANT_H_
#define CHROME_BROWSER_ACTOR_TOOL_REQUEST_VARIANT_H_

#include <variant>

#include "chrome/browser/actor/tools/tool_request_visitor_functor.h"

namespace actor {

// LINT.IfChange(ToolRequestVariant)
// Type safe union of ToolRequest types.
using ToolRequestVariant = std::variant<
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
    ActivateTabToolRequest,
    ActivateWindowToolRequest,
#endif
    AddBookmarkToolRequest,
    AttemptLoginToolRequest,
    AttemptFormFillingToolRequest,
    AttemptOtpFillingToolRequest,
    ClickToolRequest,
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
    CloseTabToolRequest,
    CloseWindowToolRequest,
    CreateTabToolRequest,
    CreateWindowToolRequest,
#endif
    DragAndReleaseToolRequest,
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
    EnterFullscreenToolRequest,
    ExitFullscreenToolRequest,
#endif
    FindAndHighlightToolRequest,
    HistoryToolRequest,
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
    LoadAndExtractContentToolRequest,
#endif
    MediaControlToolRequest,
    MoveMouseToolRequest,
    NavigateToolRequest,
    PerformSearchToolRequest,
    RemoveBookmarkToolRequest,
    ScriptToolRequest,
    ScrollToolRequest,
    ScrollToToolRequest,
    SelectToolRequest,
    TranslatePageToolRequest,
    TypeToolRequest,
    WaitToolRequest>;
// LINT.ThenChange(//tools/metrics/histograms/metadata/actor/histograms.xml:ToolRequest)

// Functor for converting a polymorphic ToolRequest object to the proper
// ToolRequestVariant type.
class ConvertToVariantFn : public ToolRequestVisitorFunctor {
 public:
  ConvertToVariantFn();
  ~ConvertToVariantFn();
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
  void Apply(const ActivateTabToolRequest&) override;
  void Apply(const ActivateWindowToolRequest&) override;
#endif
  void Apply(const AddBookmarkToolRequest&) override;
  void Apply(const AttemptLoginToolRequest&) override;
  void Apply(const AttemptFormFillingToolRequest&) override;
  void Apply(const AttemptOtpFillingToolRequest&) override;
  void Apply(const ClickToolRequest&) override;
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
  void Apply(const CloseTabToolRequest&) override;
  void Apply(const CloseWindowToolRequest&) override;
  void Apply(const CreateTabToolRequest&) override;
  void Apply(const CreateWindowToolRequest&) override;
#endif
  void Apply(const DragAndReleaseToolRequest&) override;
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
  void Apply(const EnterFullscreenToolRequest&) override;
  void Apply(const ExitFullscreenToolRequest&) override;
#endif
  void Apply(const FindAndHighlightToolRequest&) override;
  void Apply(const HistoryToolRequest&) override;
#if !BUILDFLAG(SKIP_ANDROID_UNMIGRATED_ACTOR_FILES)
  void Apply(const LoadAndExtractContentToolRequest&) override;
#endif
  void Apply(const MediaControlToolRequest&) override;
  void Apply(const MoveMouseToolRequest&) override;
  void Apply(const NavigateToolRequest&) override;
  void Apply(const PerformSearchToolRequest&) override;
  void Apply(const RemoveBookmarkToolRequest&) override;
  void Apply(const ScriptToolRequest&) override;
  void Apply(const ScrollToolRequest&) override;
  void Apply(const ScrollToToolRequest&) override;
  void Apply(const SelectToolRequest&) override;
  void Apply(const TranslatePageToolRequest&) override;
  void Apply(const TypeToolRequest&) override;
  void Apply(const WaitToolRequest&) override;

  const std::optional<ToolRequestVariant>& GetVariant() const { return var_; }

 private:
  std::optional<ToolRequestVariant> var_;
};

}  // namespace actor

#endif  // CHROME_BROWSER_ACTOR_TOOL_REQUEST_VARIANT_H_