#ifndef RAGNAROK_SOURCE_CLIENT_INPUT_LANGUAGE_H
#define RAGNAROK_SOURCE_CLIENT_INPUT_LANGUAGE_H

#include <cstdint>
#include <deque>
#include <string>
#include <vector>
#include <windows.h>

class UIWindow;
#include "UI/Window/WindowManagerWindows.h"

// VTABLE: vt_01604
struct CLanguageBase {
  virtual ~CLanguageBase();
  virtual const char* DisplayText() const;
  virtual int DisplayLength() const;
  virtual void ProcessKey(unsigned virtualKey);
  virtual LRESULT Message(HWND window, UINT message, WPARAM value, LPARAM flags, std::uint8_t& handled);
  virtual const char* NextChar(const char* current, int remaining);
  virtual void RefreshComposition();
  virtual void ResetState();
  virtual void EndComposition();
  virtual void ResetCandidate();

  /* 0004 */ std::deque<unsigned int> unknown_0004;
  /* 0018 */ CANDIDATELIST* candidateList;
  /* 001C */ int candidateCount;
  /* 0020 */ int pageSize;
  /* 0024 */ int selection;
  /* 0028 */ std::vector<unsigned char> candidateStorage;
  /* 0034 */ std::string text;
  /* 004C */ int unknown_004C;
  /* 0050 */ int cursor;
  /* 0054 */ int anchor;
  /* 0058 */ std::string composition;
  /* 0070 */ std::string candidate;
  /* 0088 */ int compositionCursor;
  /* 008C */ unsigned char password;
  /* 008D */ unsigned char unknown_008D;
  /* 008E */ std::uint16_t language;
  /* 0090 */ unsigned codePage;
  /* 0094 */ int unknown_0094;
  /* 0098 */ int unknown_0098;
  /* 009C */ std::string servicePrefix;
  /* 00B4 */ std::uint16_t alternateLanguage;
  /* 00B6 */ unsigned char unknown_00B6[2];

  CLanguageBase();
  const char* Candidate(int index) const;
  const char* Prefix(bool alternate) const;
  const char* ServiceName(const char* name);
  unsigned CodePage(unsigned fallback) const;
  void SetServicePrefix(std::string prefix);
  void DeleteSelection();
  void Insert(const char* value);
  void ResetInput();
  void Select(int anchor, int cursor);
  void Selection(int& anchor, int& cursor) const;
  void SelectionRange(int& begin, int& end) const;
  void CopyDisplayText(std::string& output) const;
  void AdvanceCursor(int delta);
  void RetreatCursor(int delta);
  void CopySelection();
  void Paste();
  void MoveBack();
  void MoveForward();
  void SetPassword(unsigned char value);
  void Character(unsigned value, LPARAM unused);
  void KeyDown(unsigned key, LPARAM unused);
};

// VTABLE: vt_01607
struct CLanguageArabic : CLanguageBase {
  /* 00B8 */ bool lexiconLoaded;

  CLanguageArabic();
  ~CLanguageArabic() override;
};

// VTABLE: vt_01606
struct CLanguageTH : CLanguageBase {
  /* 00B8 */ bool lexiconLoaded;

  CLanguageTH();
  ~CLanguageTH() override;
  const char* NextChar(const char* current, int remaining) override;
};

#if defined(_WIN32) && !defined(_WIN64)
static_assert(offsetof(CLanguageBase, unknown_0004) == 0x0004);
static_assert(offsetof(CLanguageBase, candidateList) == 0x0018);
static_assert(offsetof(CLanguageBase, candidateStorage) == 0x0028);
static_assert(offsetof(CLanguageBase, text) == 0x0034);
static_assert(offsetof(CLanguageBase, cursor) == 0x0050);
static_assert(offsetof(CLanguageBase, anchor) == 0x0054);
static_assert(offsetof(CLanguageBase, composition) == 0x0058);
static_assert(offsetof(CLanguageBase, candidate) == 0x0070);
static_assert(offsetof(CLanguageBase, language) == 0x008E);
static_assert(offsetof(CLanguageBase, codePage) == 0x0090);
static_assert(offsetof(CLanguageBase, servicePrefix) == 0x009C);
static_assert(offsetof(CLanguageBase, alternateLanguage) == 0x00B4);
static_assert(sizeof(CLanguageBase) == 0x00B8);
static_assert(sizeof(CLanguageArabic) == 0x00BC);
static_assert(sizeof(CLanguageTH) == 0x00BC);
#endif

void __stdcall SubACDD10();
void SuggestChatCommand(const char* text);
int SubACFCE0();

#endif