#pragma once

#include <ostream>
#include <any>

// for clangd
#include "visitor.hpp"
#include "global_info.hpp"

// TODO:
// add/remove global variables
//

namespace interpreter {

class FindSymbolsVisitor : public Visitor {
public:
  explicit FindSymbolsVisitor(info::GlobalInfo& global_info) : global_info_(global_info) {}

private:
  //// void Visit(Node* node) override;

  // Sources -----------------

  void Visit(SourceFile* node) override;
  void Visit(Sources* node) override;

  // Namespaces, partitions -----------------

  void Visit(Partition* node) override;
  void Visit(Namespace* node) override;

  // Definitions -----------------

  void Visit(ImportStatement* node) override;
  void Visit(UsageDefinition* node) override;
  void Visit(AliasDefinition* node) override;
  //// void Visit(VariableDefinition* node) override; // TODO: decide
  void Visit(FunctionDeclaration* node) override;
  void Visit(FunctionDefinition* node) override;
  void Visit(AliasTypeDefinition* node) override;
  void Visit(TypeDefinition* node) override;
  void Visit(TypeclassDefinition* node) override;

  // Definition parts

  void Visit(DefinedName* node) override;
  void Visit(DefinedAnnotatedName* node) override;
  void Visit(DefinedType* node) override;
  void Visit(DefinedTypeclass* node) override;
  void Visit(DefinitionParameter* node) override;
  void Visit(DefinitionArgument* node) override;

  // Flow control -----------------

  //// void Visit(MatchCase* node) override;
  //// void Visit(Match* node) override;
  //// void Visit(Condition* node) override;
  //// void Visit(DoWhileLoop* node) override;
  //// void Visit(WhileLoop* node) override;
  //// void Visit(ForLoop* node) override;
  //// void Visit(LoopLoop* node) override;

  // Statements, expressions, blocks, etc. -----------------

  //// void Visit(Block* node) override;
  //// void Visit(ScopedStatement* node) override;

  //// void Visit(LoopControlExpression& node) override; // enum

  // Operators

  //// void Visit(BinaryOperatorExpression* node) override;
  //// void Visit(UnaryOperatorExpression* node) override;

  // Simple Expressions

  //// void Visit(FunctionCallExpression* node) override;
  //// void Visit(TupleExpression* node) override;
  //// void Visit(VariantExpression* node) override;
  //// void Visit(ReturnExpression* node) override;

  // Lambda

  //// void Visit(LambdaFunction* node) override;

  // Name

  void Visit(NameSuperExpression* node) override;
  void Visit(NameExpression* node) override;
  void Visit(TupleName* node) override;
  void Visit(VariantName* node) override;
  void Visit(AnnotatedName* node) override;

  // Type

  //// void Visit(TypeConstructor* node) override;
  void Visit(TupleType* node) override;
  void Visit(VariantType* node) override;
  void Visit(AnnotatedType* node) override;
  void Visit(ParametrizedType* node) override;
  void Visit(TypeExpression* node) override;

  // Typeclass

  void Visit(AnnotatedTypeclass* node) override;
  void Visit(ParametrizedTypeclass* node) override;
  void Visit(TypeclassExpression* node) override;

  // Identifiers, constants, etc. -----------------

  //// void Visit(AnyIdentifier* node) override; // std::string

  //// void Visit(FloatNumberLiteral* node) override;
  //// void Visit(NumberLiteral* node) override;
  //// void Visit(StringLiteral* node) override;
  //// void Visit(CharLiteral* node) override;
private:
  info::GlobalInfo& global_info_;
  std::any current_info_;
};

} // namespace interpreter