#pragma once

#include "report.h"
#include <stdbool.h>
#include <stddef.h>

typedef enum {
    TT_Err,
    TT_Eof,
    TT_Ident,
    TT_Int,
    TT_Binary,
    TT_Hex,
    TT_Char,
    TT_Str,
    TT_Newline = '\n',
    TT_DoubleLt,
    TT_DoubleGt,
    TT_Pipe = '|',
    TT_Hat = '^',
    TT_Ampersand = '&',
    TT_Plus = '+',
    TT_Minus = '-',
    TT_Asterisk = '*',
    TT_Slash = '/',
    TT_Percent = '%',
    TT_LParen = '(',
    TT_RParen = ')',
    TT_LBracket = '[',
    TT_RBracket = ']',
    TT_Dot = '.',
    TT_Comma = ',',
    TT_Colon = ':',
    TT_Exclamation = '!',
} TokTy;

typedef struct {
    TokTy ty;
    Loc loc;
    size_t len;
} Tok;

typedef struct {
    const char* filename;
    const char* text;
    size_t text_len;
    size_t idx;
    int line;
    int col;
    char ch;
    bool error_occured;
} Lexer;

void lexer_construct(Lexer* lexer, const char* filename, const char* text);
Tok lexer_next(Lexer* lexer);