#ifndef PORYGONLANG_PARSER_HPP
#define PORYGONLANG_PARSER_HPP

#include <utility>
#include <vector>
#include "ParsedStatements/ParsedStatement.hpp"
#include "../Script.hpp"

enum class OperatorPrecedence {
    No,
    LogicalOr,
    LogicalAnd,
    Equality,
    Additive,
    Multiplication,
    Unary,
};

class Parser {
    vector<IToken*> _tokens;
    unsigned int _position;
    Script* ScriptData;

    IToken* Peek();
    IToken* Next();

    ParsedStatement* ParseStatement(IToken* current);
    ParsedStatement* ParseAssignment(IToken* current);
    ParsedStatement *ParseBlock(const vector<TokenKind>& endTokens);
    ParsedStatement* ParseFunctionDeclaration(IToken* current);
    ParsedStatement *ParseReturnStatement(IToken *current);

    ParsedExpression* ParseExpression(IToken* current);
    ParsedExpression* ParseBinaryExpression(IToken* current, OperatorPrecedence parentPrecedence);
    ParsedExpression* ParsePrimaryExpression(IToken* current);
    ParsedExpression* ParseParenthesizedExpression(IToken *current);

    ParsedExpression* ParseFunctionCallExpression(ParsedExpression* functionExpression);
    ParsedExpression *ParseIndexExpression(ParsedExpression *indexingExpression);
public:
    ParsedScriptStatement* Parse();
    explicit Parser(vector<IToken*> tokens, Script* scriptData){
        _tokens = std::move(tokens);
        _position = 0;
        ScriptData = scriptData;
    }

};


#endif //PORYGONLANG_PARSER_HPP