/* $OpenBSD$ */

/*
* Copyright (c) 2007 Nicholas Marriott <[email protected]>
*
* 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 <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>

#include "tmux.h"

/*
* Create a new window.
*/

#define NEW_WINDOW_TEMPLATE "#{session_name}:#{window_index}.#{pane_index}"

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

const struct cmd_entry cmd_new_window_entry = {
       .name = "new-window",
       .alias = "neww",

       .args = { "abc:de:F:kn:PSt:", 0, -1, NULL },
       .usage = "[-abdkPS] [-c start-directory] [-e environment] [-F format] "
                "[-n window-name] " CMD_TARGET_WINDOW_USAGE " [shell-command]",

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

       .flags = 0,
       .exec = cmd_new_window_exec
};

static enum cmd_retval
cmd_new_window_exec(struct cmd *self, struct cmdq_item *item)
{
       struct args             *args = cmd_get_args(self);
       struct client           *c = cmdq_get_client(item);
       struct cmd_find_state   *current = cmdq_get_current(item);
       struct cmd_find_state   *target = cmdq_get_target(item);
       struct spawn_context     sc = { 0 };
       struct client           *tc = cmdq_get_target_client(item);
       struct session          *s = target->s;
       struct winlink          *wl = target->wl, *new_wl = NULL;
       int                      idx = target->idx, before;
       char                    *cause = NULL, *cp, *expanded;
       const char              *template, *name;
       struct cmd_find_state    fs;
       struct args_value       *av;

       /*
        * If -S and -n are given and -t is not and a single window with this
        * name already exists, select it.
        */
       name = args_get(args, 'n');
       if (args_has(args, 'S') && name != NULL && target->idx == -1) {
               expanded = format_single(item, name, c, s, NULL, NULL);
               RB_FOREACH(wl, winlinks, &s->windows) {
                       if (strcmp(wl->window->name, expanded) != 0)
                               continue;
                       if (new_wl == NULL) {
                               new_wl = wl;
                               continue;
                       }
                       cmdq_error(item, "multiple windows named %s", name);
                       free(expanded);
                       return (CMD_RETURN_ERROR);
               }
               free(expanded);
               if (new_wl != NULL) {
                       if (args_has(args, 'd'))
                               return (CMD_RETURN_NORMAL);
                       if (session_set_current(s, new_wl) == 0)
                               server_redraw_session(s);
                       if (c != NULL && c->session != NULL)
                               s->curw->window->latest = c;
                       recalculate_sizes();
                       return (CMD_RETURN_NORMAL);
               }
       }

       before = args_has(args, 'b');
       if (args_has(args, 'a') || before) {
               idx = winlink_shuffle_up(s, wl, before);
               if (idx == -1)
                       idx = target->idx;
       }

       sc.item = item;
       sc.s = s;
       sc.tc = tc;

       sc.name = args_get(args, 'n');
       args_to_vector(args, &sc.argc, &sc.argv);
       sc.environ = environ_create();

       av = args_first_value(args, 'e');
       while (av != NULL) {
               environ_put(sc.environ, av->string, 0);
               av = args_next_value(av);
       }

       sc.idx = idx;
       sc.cwd = args_get(args, 'c');

       sc.flags = 0;
       if (args_has(args, 'd'))
               sc.flags |= SPAWN_DETACHED;
       if (args_has(args, 'k'))
               sc.flags |= SPAWN_KILL;

       if ((new_wl = spawn_window(&sc, &cause)) == NULL) {
               cmdq_error(item, "create window failed: %s", cause);
               free(cause);
               if (sc.argv != NULL)
                       cmd_free_argv(sc.argc, sc.argv);
               environ_free(sc.environ);
               return (CMD_RETURN_ERROR);
       }
       if (!args_has(args, 'd') || new_wl == s->curw) {
               cmd_find_from_winlink(current, new_wl, 0);
               server_redraw_session_group(s);
       } else
               server_status_session_group(s);

       if (args_has(args, 'P')) {
               if ((template = args_get(args, 'F')) == NULL)
                       template = NEW_WINDOW_TEMPLATE;
               cp = format_single(item, template, tc, s, new_wl,
                       new_wl->window->active);
               cmdq_print(item, "%s", cp);
               free(cp);
       }

       cmd_find_from_winlink(&fs, new_wl, 0);
       cmdq_insert_hook(s, item, &fs, "after-new-window");

       if (sc.argv != NULL)
               cmd_free_argv(sc.argc, sc.argv);
       environ_free(sc.environ);
       return (CMD_RETURN_NORMAL);
}