#ifndef DATA_H_
#define DATA_H_

#include <stdio.h>
#include <termios.h>
#include <time.h>

#include "lisp.h"


typedef struct{
  unsigned char c[4];
  char len;
} utf_8_char_t;

/**
 * \struct erow
 * \brief Store one editor row
 * \param
 * */

typedef struct erow {
  int size;     /**< Size of the line */
  int rsize;    /**< Size of the render line */
  utf_8_char_t *chars;  /**< Characters of the line */
  utf_8_char_t *render; /**< The actual line we will print */
} erow;

enum editorStatus_e {
  IDLE,
  READ_ONLY,
  READ_AND_WRITE, 
};

struct const_t {
  int TAB_LENGTH;
  int QUIT_TIMES;
};

// Key types
typedef enum {
    KEY_CHAR,           // Regular character or UTF-8
    KEY_CTRL,           // Ctrl+letter
    KEY_ALT,            // Alt+letter
    KEY_ARROW,          // Arrow keys
    KEY_FUNCTION,       // Function keys
    KEY_SPECIAL,        // Tab, Enter, ESC, Backspace, etc.
    KEY_NAVIGATION,     // Home, End, PgUp, PgDn, Insert, Delete
    KEY_UNKNOWN
} KeyType;

// Modifiers
typedef enum {
    MOD_NONE = 0,
    MOD_SHIFT = 1,
    MOD_ALT = 2,
    MOD_CTRL = 4
} KeyModifier;

// Key information structure
typedef struct {
    KeyType type;
    int modifiers;      // Bitmask of KeyModifier
    union {
        unsigned int codepoint;  // For KEY_CHAR
        char ctrl_char;          // For KEY_CTRL (A-Z)
        char alt_char;           // For KEY_ALT
        char arrow;              // For KEY_ARROW (U/D/L/R)
        int function_num;        // For KEY_FUNCTION (1-12)
        char special;            // For KEY_SPECIAL and KEY_NAVIGATION
    } data;
    utf_8_char_t c;  // Raw bytes
} KeyInfo;


struct keyBind_t {
  KeyInfo *key_sequence;
  Lisp command;
};

/**
 * \struct editorConfig
 * \brief Containing our editor state.
 */
struct editorConfig {
  int cursor_x, cursor_y; /**< Cursor position */
  int rx;                 /**< Position in the render*/
  int row_offset;         /**< Position scroll of lines */
  int col_offset;         /**< Position scroll of colomns*/
  int screenrows;         /**< Terminal height*/
  int screencols;         /**< Terminal width*/
  int numrows;            /**< Number of rows contained */
  erow *row;              /**< Store all the rows printed */
  int dirty;
  char *filename;
  enum editorStatus_e state;
  char status_msg[80];
  time_t status_msg_time;
  struct termios orig_termios; /**< Terminal communication interface */

  struct const_t constantes;
  int quit_times_buffer;

  FILE *fd_init_file;
  Lisp env;
  LispContext ctx;     /** Lisp context */
  Lisp ctx_data;       /** Lisp data context */
  LispError ctx_error; /** Lisp ctx error */

  struct keyBind_t* key_binds;
  int number_of_keybinds;

};

/**
 * \struct abuf
 * \brief Contains text to add before writing to screen.
 * */

struct abuf {
  unsigned char *b; /**< Text that will be printed */
  int len; /**< Length of the text */
};

extern struct editorConfig E;


#endif