/* $OpenBSD: cmd-move-window.c,v 1.34 2021/08/21 10:22:39 nicm Exp $ */

/*
 * Copyright (c) 2008 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"

/*
 * Move a window.
 */

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

const struct cmd_entry cmd_move_window_entry = {
        .name = "move-window",
        .alias = "movew",

        .args = { "abdkrs:t:", 0, 0, NULL },
        .usage = "[-abdkr] " CMD_SRCDST_WINDOW_USAGE,

        .source = { 's', CMD_FIND_WINDOW, 0 },
        /* -t is special */

        .flags = 0,
        .exec = cmd_move_window_exec
};

const struct cmd_entry cmd_link_window_entry = {
        .name = "link-window",
        .alias = "linkw",

        .args = { "abdks:t:", 0, 0, NULL },
        .usage = "[-abdk] " CMD_SRCDST_WINDOW_USAGE,

        .source = { 's', CMD_FIND_WINDOW, 0 },
        /* -t is special */

        .flags = 0,
        .exec = cmd_move_window_exec
};

static enum cmd_retval
cmd_move_window_exec(struct cmd *self, struct cmdq_item *item)
{
        struct args             *args = cmd_get_args(self);
        struct cmd_find_state   *source = cmdq_get_source(item);
        struct cmd_find_state    target;
        const char              *tflag = args_get(args, 't');
        struct session          *src = source->s;
        struct session          *dst;
        struct winlink          *wl = source->wl;
        char                    *cause;
        int                      idx, kflag, dflag, sflag, before;

        if (args_has(args, 'r')) {
                if (cmd_find_target(&target, item, tflag, CMD_FIND_SESSION,
                    CMD_FIND_QUIET) != 0)
                        return (CMD_RETURN_ERROR);

                session_renumber_windows(target.s);
                recalculate_sizes();
                server_status_session(target.s);

                return (CMD_RETURN_NORMAL);
        }
        if (cmd_find_target(&target, item, tflag, CMD_FIND_WINDOW,
            CMD_FIND_WINDOW_INDEX) != 0)
                return (CMD_RETURN_ERROR);
        dst = target.s;
        idx = target.idx;

        kflag = args_has(args, 'k');
        dflag = args_has(args, 'd');
        sflag = args_has(args, 's');

        before = args_has(args, 'b');
        if (args_has(args, 'a') || before) {
                if (target.wl != NULL)
                        idx = winlink_shuffle_up(dst, target.wl, before);
                else
                        idx = winlink_shuffle_up(dst, dst->curw, before);
                if (idx == -1)
                        return (CMD_RETURN_ERROR);
        }

        if (server_link_window(src, wl, dst, idx, kflag, !dflag, &cause) != 0) {
                cmdq_error(item, "%s", cause);
                free(cause);
                return (CMD_RETURN_ERROR);
        }
        if (cmd_get_entry(self) == &cmd_move_window_entry)
                server_unlink_window(src, wl);

        /*
         * Renumber the winlinks in the src session only, the destination
         * session already has the correct winlink id to us, either
         * automatically or specified by -s.
         */
        if (!sflag && options_get_number(src->options, "renumber-windows"))
                session_renumber_windows(src);

        recalculate_sizes();

        return (CMD_RETURN_NORMAL);
}