#include <clang/Tooling/Tooling.h>

#include <optional>
#include <string>

struct OutputFilenames {
  std::string host;
  std::string guest;
};

class AnalyzeDataLayoutActionFactory : public clang::tooling::FrontendActionFactory {
  std::unique_ptr<struct ABI> abi;

public:
  AnalyzeDataLayoutActionFactory();
  ~AnalyzeDataLayoutActionFactory();

  std::unique_ptr<clang::FrontendAction> create() override;

  const ABI& GetDataLayout() {
    return *abi;
  }

  std::unique_ptr<ABI> TakeDataLayout() {
    return std::move(abi);
  }
};

class DataLayoutCompareActionFactory : public clang::tooling::FrontendActionFactory {
  const ABI& abi;

public:
  DataLayoutCompareActionFactory(const ABI&);
  ~DataLayoutCompareActionFactory();

  std::unique_ptr<clang::FrontendAction> create() override;
};

class GenerateThunkLibsActionFactory : public clang::tooling::ToolAction {
public:
  GenerateThunkLibsActionFactory(std::string_view libname_, OutputFilenames output_filenames_, const ABI& abi_)
    : libname(std::move(libname_))
    , output_filenames(std::move(output_filenames_))
    , abi(abi_) {}

  bool runInvocation(std::shared_ptr<clang::CompilerInvocation> Invocation, clang::FileManager* Files,
                     std::shared_ptr<clang::PCHContainerOperations> PCHContainerOps, clang::DiagnosticConsumer* DiagConsumer) override;

private:
  std::string libname;
  OutputFilenames output_filenames;
  const ABI& abi;
};