/* $OpenBSD: cmd-kill-window.c,v 1.30 2026/06/09 12:57:40 nicm Exp $ */

/*

 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER

 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING

 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#include <sys/types.h>

#include <stdlib.h>

#include "tmux.h"

/*

 * Destroy window.

 */

static enum cmd_retval  cmd_kill_window_exec(struct cmd *, struct cmdq_item *);

static enum cmd_retval  cmd_kill_window_all(struct cmdq_item *, const char *);

static int    cmd_kill_window_filter(struct cmdq_item *,

          struct session *, struct winlink *, const char *);

const struct cmd_entry cmd_kill_window_entry = {

  .name = "kill-window",

  .alias = "killw",

  .args = { "af:t:", 0, 0, NULL },

  .usage = "[-a] [-f filter] " CMD_TARGET_WINDOW_USAGE,

  .target = { 't', CMD_FIND_WINDOW, 0 },

  .flags = 0,

  .exec = cmd_kill_window_exec

};

const struct cmd_entry cmd_unlink_window_entry = {

  .name = "unlink-window",

  .alias = "unlinkw",

  .args = { "kt:", 0, 0, NULL },

  .usage = "[-k] " CMD_TARGET_WINDOW_USAGE,

  .target = { 't', CMD_FIND_WINDOW, 0 },

  .flags = 0,

  .exec = cmd_kill_window_exec

};

static enum cmd_retval

cmd_kill_window_exec(struct cmd *self, struct cmdq_item *item)

{

  struct args   *args = cmd_get_args(self);

  struct cmd_find_state *target = cmdq_get_target(item);

  struct winlink    *wl = target->wl;

  struct window   *w = wl->window;

  struct session    *s = target->s;

  const char    *filter = args_get(args, 'f');

  if (filter != NULL && !args_has(args, 'a')) {

    cmdq_error(item, "-f only valid with -a");

    return (CMD_RETURN_ERROR);

  }

  if (cmd_get_entry(self) == &cmd_unlink_window_entry) {

    if (!args_has(args, 'k') && !session_is_linked(s, w)) {

      cmdq_error(item, "window only linked to one session");

      return (CMD_RETURN_ERROR);

    }

    server_unlink_window(s, wl);

    recalculate_sizes();

    return (CMD_RETURN_NORMAL);

  }

  if (args_has(args, 'a'))

    return (cmd_kill_window_all(item, filter));

  server_kill_window(wl->window, 1);

  return (CMD_RETURN_NORMAL);

}

static enum cmd_retval

cmd_kill_window_all(struct cmdq_item *item, const char *filter)

{

  struct cmd_find_state *target = cmdq_get_target(item);

  struct session    *s = target->s;

  struct winlink    *wl = target->wl;

  struct winlink  *loop;

  u_int    found, kill_current;

  if (RB_PREV(winlinks, &s->windows, wl) == NULL &&

      RB_NEXT(winlinks, &s->windows, wl) == NULL)

    return (CMD_RETURN_NORMAL);

  /* Kill all windows except the current one. */

  do {

    found = 0;

    RB_FOREACH(loop, winlinks, &s->windows) {

      if (loop->window != wl->window &&

          cmd_kill_window_filter(item, s, loop, filter)) {

        server_kill_window(loop->window, 0);

        found++;

        break;

      }

    }

  } while (found != 0);

  /*

   * If the current window appears in the session more than once, kill it

   * as well if it matches the filter.

   */

  found = kill_current = 0;

  RB_FOREACH(loop, winlinks, &s->windows) {

    if (loop->window == wl->window) {

      found++;

      if (cmd_kill_window_filter(item, s, loop, filter))

        kill_current = 1;

    }

  }

  if (kill_current && found > 1)

    server_kill_window(wl->window, 0);

  server_renumber_all();

  return (CMD_RETURN_NORMAL);

}

static int

cmd_kill_window_filter(struct cmdq_item *item, struct session *s,

    struct winlink *wl, const char *filter)

{

  struct format_tree  *ft;

  char      *expanded;

  int      flag;

  if (filter == NULL)

    return (1);

  ft = format_create(cmdq_get_client(item), item, FORMAT_NONE, 0);

  format_defaults(ft, NULL, s, wl, NULL);

  expanded = format_expand(ft, filter);

  flag = format_true(expanded);

  free(expanded);

  format_free(ft);

  return (flag);

}