#ifndef NVIM_BUFFER_H
#define NVIM_BUFFER_H

#include "nvim/window.h"
#include "nvim/pos.h"  // for linenr_T
#include "nvim/ex_cmds_defs.h"  // for exarg_T

// Values for buflist_getfile()
enum getf_values {
  GETF_SETMARK = 0x01, // set pcmark before jumping
  GETF_ALT     = 0x02, // jumping to alternate file (not buf num)
  GETF_SWITCH  = 0x04, // respect 'switchbuf' settings when jumping
};

// Values for buflist_new() flags
enum bln_values {
  BLN_CURBUF = 1, // May re-use curbuf for new buffer
  BLN_LISTED = 2, // Put new buffer in buffer list
  BLN_DUMMY  = 4, // Allocating dummy buffer
};

// Values for action argument for do_buffer()
enum dobuf_action_values {
  DOBUF_GOTO   = 0, // go to specified buffer
  DOBUF_SPLIT  = 1, // split window and go to specified buffer
  DOBUF_UNLOAD = 2, // unload specified buffer(s)
  DOBUF_DEL    = 3, // delete specified buffer(s) from buflist
  DOBUF_WIPE   = 4, // delete specified buffer(s) really
};

// Values for start argument for do_buffer()
enum dobuf_start_values {
  DOBUF_CURRENT = 0, // "count" buffer from current buffer
  DOBUF_FIRST   = 1, // "count" buffer from first buffer
  DOBUF_LAST    = 2, // "count" buffer from last buffer
  DOBUF_MOD     = 3, // "count" mod. buffer from current buffer
};

// flags for buf_freeall()
enum bfa_values {
  BFA_DEL       = 1, // buffer is going to be deleted
  BFA_WIPE      = 2, // buffer is going to be wiped out
  BFA_KEEP_UNDO = 4, // do not free undo information
};

#ifdef INCLUDE_GENERATED_DECLARATIONS
# include "buffer.h.generated.h"
#endif

// Find a window that contains "buf" and switch to it.
// If there is no such window, use the current window and change "curbuf".
// Caller must initialize save_curbuf to NULL.
// restore_win_for_buf() MUST be called later!
static inline void switch_to_win_for_buf(buf_T *buf,
                                         win_T **save_curwinp,
                                         tabpage_T **save_curtabp,
                                         buf_T **save_curbufp)
{
  win_T *wp;
  tabpage_T *tp;

  if (!find_win_for_buf(buf, &wp, &tp)
      || switch_win(save_curwinp, save_curtabp, wp, tp, true) == FAIL)
    switch_buffer(save_curbufp, buf);
}

static inline void restore_win_for_buf(win_T *save_curwin,
                                       tabpage_T *save_curtab,
                                       buf_T *save_curbuf)
{
  if (save_curbuf == NULL) {
    restore_win(save_curwin, save_curtab, true);
  } else {
    restore_buffer(save_curbuf);
  }
}

#define WITH_BUFFER(b, code)                                              \
  do {                                                                    \
    buf_T *save_curbuf = NULL;                                            \
    win_T *save_curwin = NULL;                                            \
    tabpage_T *save_curtab = NULL;                                        \
    switch_to_win_for_buf(b, &save_curwin, &save_curtab, &save_curbuf);   \
    code;                                                                 \
    restore_win_for_buf(save_curwin, save_curtab, save_curbuf);           \
  } while (0)


#endif  // NVIM_BUFFER_H
