/* $OpenBSD: cmd-new-window.c,v 1.98 2025/04/09 07:03:04 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 <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 [argument ...]]",

        .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);
}