#ifndef TOKEN_CC
#define TOKEN_CC

#include <cstdio>

#include "common.cc"
#include "source.cc"

#define TOKEN_KINDS_NOLEX \
  X(Invalid_Char)         \
  X(Invalid_Literal)      \
  X(Identifier)

#define TOKEN_KINDS_SLEX \
  X(Hash, '#')           \
  X(LBrace, '{')         \
  X(RBrace, '}')         \
  X(LParen, '(')         \
  X(RParen, ')')         \
  X(LBracket, '[')       \
  X(RBracket, ']')

#define TOKEN_KIND(name) Token_Kind_##name

enum Token_Kind : u8 {
#define X(name) TOKEN_KIND(name),
  TOKEN_KINDS_NOLEX
#undef X

#define X(name, _) TOKEN_KIND(name),
      TOKEN_KINDS_SLEX
#undef X
};

struct Token {
  Token_Kind kind;
  String text;
  Span span;

  Token() : kind(Token_Kind_Invalid_Char), text(), span() {}
  Token(Token_Kind kind, String text, Span span)
      : kind(kind), text(text), span(span) {}
};

bool token_write(const Token* token, FILE* stream) {
  assert_neq(token, nullptr);
  assert_neq(stream, nullptr);

  i32 rc = fprintf(stream, "Token { kind: %d, text: ", token->kind);
  if (unlikely(rc < 0)) return false;

  bool status = string_write(&token->text, stream);
  if (unlikely(!status)) return false;

  rc = fprintf(stream, ", span: ");
  if (unlikely(rc < 0)) return false;

  status = span_write(&token->span, stream);
  if (unlikely(!status)) return false;

  rc = fprintf(stream, " }");
  if (unlikely(rc < 0)) return false;

  return true;
}

#endif