#pragma once
#include "Location.h"
#include <string>
#include <vector>

enum TokenType
{
    TT_Identifier,
    TT_Number,
    TT_Float,
    TT_Keyword,
    TT_String,
    TT_Plus,
    TT_Minus,
    TT_Mul,
    TT_Div,
    TT_At,
    TT_Equal,
    TT_LessThan,
    TT_GreaterThan,
    TT_LParen,
    TT_RParen,
    TT_LBracket,
    TT_RBracket,
    TT_Semicolon,
    TT_LoadedString,
    TT_EOF,
    TT_Null,
    TT_Equals,
    TT_GTE,
    TT_LTE
};

extern const std::string token_strings[];

struct Token
{
    TokenType tk_type;

    int int_value;
    std::string string_value;
    float float_value;

    Location loc;

    Token(const TokenType& type);

    Token(const TokenType& type, const Location& location);

    Token(const TokenType& type, const int& val, const Location& location);

    Token(const TokenType& type, const std::string& val, const Location& location);

    Token(const TokenType& type, const std::string& val);

    Token(const TokenType& type, const float& val, const Location& location);

    ~Token();

    std::string to_string() const;

    std::string line() const;

    static Token make_with_line(const Token& origin, const std::string& line_text);

    void operator=(const Token& other);

    static void erase(Token& tk);

    Token copy_with_new_type(const TokenType& type);

    static bool match_token_types(const TokenStream& a, const TokenStream& b, int count);

private:
    std::string line_text;
};

typedef std::vector<Token> TokenStream;