#include "Utility/Lexicon/LexiconBoundary.h"

#include "Utility/Lexicon/LexiconSerializer.h"

#include <cstring>

// GLOBAL: gl_24545
std::uint32_t g_lexiconByteClasses[256] = {
  0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,
  0, 0, 0, 0, 0, 0, 0, 0,
  0x1000000, 0x400, 0x400, 0x400, 0x400, 0x400, 0x400, 0x400,
  0x10, 0x20, 0x400, 0x400, 0x400, 0x400, 0x404, 0x400,
  0x10002, 0x10002, 0x10002, 0x10002, 0x10002, 0x10002, 0x10002, 0x10002,
  0x10002, 0x10002, 0x400, 0x400, 0x10, 0x400, 0x20, 0x40,
  0x400, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002,
  0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002,
  0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002, 0x100002,
  0x100002, 0x100002, 0x100002, 0x10, 0x400, 0x20, 0x400, 0x400,
  0x400, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002,
  0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002,
  0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002, 0x200002,
  0x200002, 0x200002, 0x200002, 0x10, 0x400, 0x20, 0x400, 0,
  0x20001, 0x101, 0x101, 0x101, 0x101, 0x400, 0x8101, 0x8101,
  0x8101, 0x8101, 0x4101, 0x8101, 0x8101, 0x8101, 0x8101, 0x4101,
  0x20001, 0x414, 0x424, 0x414, 0x424, 0x400, 0x400, 0x400,
  0x4101, 0x4101, 0x4101, 0x8101, 0x8101, 0x8101, 0x8101, 0x4101,
  0x1000000, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001,
  0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001,
  0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001,
  0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001,
  0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001,
  0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x20001, 0x201,
  0x2001, 0x4101, 0x2001, 0x2001, 0x101, 0x101, 0x101, 0x101,
  0x101, 0x101, 0x4101, 0x2000000, 0x400, 0, 0, 0x400,
  0x1001, 0x1001, 0x1001, 0x1001, 0x1001, 0x2001, 0x1, 0x4101,
  0x8101, 0x8101, 0x8101, 0x8101, 0x4101, 0x4101, 0x4101, 0x400,
  0x10001, 0x10001, 0x10001, 0x10001, 0x10001, 0x10001, 0x10001, 0x10001,
  0x10001, 0x400, 0x400, 0x101, 0x101, 0x101, 0, 0,
};

// OFFSET: 0x00AC4EA0
// FUNCTION: fn_17634
bool LexiconBoundary::Matches(unsigned char previous, unsigned char current, unsigned char options) const {
  if (previous == 0xDD) {
    return true;
  }

  if ((this->flags[previous] & 1) != 0 && (this->flags[current] & 0x2100) != 0) {
    return true;
  }

  if (current == 32) {
    return true;
  }

  if (previous == 32) {
    return false;
  }

  const std::uint32_t before = this->flags[previous];
  const std::uint32_t after = this->flags[current];
  if ((options & 2) != 0) {
    return ((before & 0x470) != 0) == ((after & 0x470) != 0) &&
           (((before & 0x1000) != 0 && (after & 1) != 0) || ((before & 0x470) != 0 && (after & 0x470) != 0) ||
            ((before & 2) != 0 && (after & 2) != 0));
  }

  if ((after & 0x10) != 0 && (before & 0x10) == 0) {
    return false;
  }

  if ((after & 0x60) != 0 || (before & 0x10) != 0 || ((before & 0x1000) != 0 && (after & 1) != 0)) {
    return true;
  }

  return ((before & 0x400) != 0 && (after & 0x10002) != 0) || (after & 0x400) != 0;
}

// OFFSET: 0x00AC4A40
// FUNCTION: fn_17632
bool LexiconBoundary::Load() {
  delete this->serializer;
  this->serializer = new LexiconSerializer;
  this->serializer->Load("..\\ftwrk.lex");
  std::memcpy(this->flags, g_lexiconByteClasses, sizeof(this->flags));
  return this->serializer != nullptr;
}