vim_mode.h

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#ifndef YAZE_CLI_SERVICE_AGENT_VIM_MODE_H_
#define YAZE_CLI_SERVICE_AGENT_VIM_MODE_H_
 
#include <functional>
#include <string>
#include <vector>
 
namespace yaze {
namespace cli {
namespace agent {
 
enum class VimModeType {
  NORMAL,       // Command mode (ESC)
  INSERT,       // Insert mode (i, a, o, etc.)
  VISUAL,       // Visual selection mode (v)
  COMMAND_LINE  // Ex command mode (:)
};
 
class VimMode {
 public:
  VimMode();
 
  bool ProcessKey(int ch);
 
  std::string GetLine() const { return current_line_; }
 
  VimModeType GetMode() const { return mode_; }
 
  std::string GetModeString() const;
 
  int GetCursorPos() const { return cursor_pos_; }
 
  void Reset();
 
  void AddToHistory(const std::string& line);
 
  void SetAutoCompleteCallback(
      std::function<std::vector<std::string>(const std::string&)> callback) {
    autocomplete_callback_ = callback;
  }
 
  void SetCommandSuggestionCallback(
      std::function<std::string(const std::string&)> callback) {
    command_suggestion_callback_ = callback;
  }
 
  void Render() const;
 
 private:
  // Mode handling
  void SwitchMode(VimModeType new_mode);
 
  // Normal mode commands
  void HandleNormalMode(int ch);
  void MoveLeft();
  void MoveRight();
  void MoveWordForward();
  void MoveWordBackward();
  void MoveToLineStart();
  void MoveToLineEnd();
  void DeleteChar();
  void DeleteLine();
  void YankLine();
  void PasteBefore();
  void PasteAfter();
  void Undo();
  void Redo();
 
  // Insert mode commands
  void HandleInsertMode(int ch);
  void InsertChar(char c);
  void Backspace();
  void Delete();
  void Complete();
 
  // History navigation
  void HistoryPrev();
  void HistoryNext();
 
  // Visual feedback
  void ShowSuggestion() const;
 
  VimModeType mode_ = VimModeType::INSERT;
  std::string current_line_;
  int cursor_pos_ = 0;
 
  // History
  std::vector<std::string> history_;
  int history_index_ = -1;
 
  // Undo/redo
  std::vector<std::string> undo_stack_;
  std::vector<std::string> redo_stack_;
 
  // Yank buffer
  std::string yank_buffer_;
 
  // Autocomplete
  std::function<std::vector<std::string>(const std::string&)>
      autocomplete_callback_;
  std::function<std::string(const std::string&)> command_suggestion_callback_;
  std::vector<std::string> autocomplete_options_;
  int autocomplete_index_ = 0;
 
  // State
  bool line_complete_ = false;
};
 
}  // namespace agent
}  // namespace cli
}  // namespace yaze
 
#endif  // YAZE_CLI_SERVICE_AGENT_VIM_MODE_H_