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// 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 COMPONENTS_OPTIMIZATION_GUIDE_CONTENT_BROWSER_PAGE_CONTEXT_ELIGIBILITY_H_
#define COMPONENTS_OPTIMIZATION_GUIDE_CONTENT_BROWSER_PAGE_CONTEXT_ELIGIBILITY_H_
#include <memory>
#include <optional>
#include "base/component_export.h"
#include "base/memory/raw_ptr.h"
#include "base/scoped_native_library.h"
#include "base/types/pass_key.h"
#include "components/optimization_guide/content/browser/page_content_proto_provider.h"
#include "components/optimization_guide/content/browser/page_context_eligibility_api.h"
namespace optimization_guide {
// TODO(crbug.com/421932889): Forward declare PageContextEligibility so that
// callers cannot invoke api() directly.
class PageContextEligibility {
public:
explicit PageContextEligibility(const PageContextEligibilityAPI* api);
~PageContextEligibility();
PageContextEligibility(const PageContextEligibility& other) = delete;
PageContextEligibility& operator=(const PageContextEligibility& other) =
delete;
PageContextEligibility(PageContextEligibility&& other) = delete;
PageContextEligibility& operator=(PageContextEligibility&& other) = delete;
// Gets a lazily initialized global instance of PageContextEligibility. May
// return null if the underlying library could not be loaded.
static PageContextEligibility* Get();
// Exposes the raw PageContextEligibilityAPI functions defined by the library.
const PageContextEligibilityAPI& api() const { return *api_; }
private:
static std::unique_ptr<PageContextEligibility> Create();
raw_ptr<const PageContextEligibilityAPI> api_;
};
// Convert the page metadata from the `result` to a vector of `FrameMetadata`.
std::vector<optimization_guide::FrameMetadata> GetFrameMetadataFromPageContent(
const optimization_guide::AIPageContentResult& result);
// Checks if the page is context eligible using the api provided in
// `api_holder`. This function must be called instead of the function in the API
// directly in order to have properly disabled CFI.
bool IsPageContextEligible(
const std::string& host,
const std::string& path,
const std::vector<optimization_guide::FrameMetadata>& frame_metadata,
const PageContextEligibility* api_holder);
} // namespace optimization_guide
#endif // COMPONENTS_OPTIMIZATION_GUIDE_CONTENT_BROWSER_PAGE_CONTEXT_ELIGIBILITY_H_
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