/* $OpenBSD$ */

/*
* 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 <stdlib.h>
#include <string.h>
#include <time.h>

#include "tmux.h"

/*
* List all clients.
*/

#define LIST_CLIENTS_TEMPLATE                                           \
       "#{client_name}: #{session_name} "                              \
       "[#{client_width}x#{client_height} #{client_termname}] "        \
       "#{?#{!=:#{client_uid},#{uid}},"                                \
       "[user #{?client_user,#{client_user},#{client_uid},}] ,}"       \
       "#{?client_flags,(,}#{client_flags}#{?client_flags,),}"

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

const struct cmd_entry cmd_list_clients_entry = {
       .name = "list-clients",
       .alias = "lsc",

       .args = { "F:f:t:", 0, 0, NULL },
       .usage = "[-F format] [-f filter] " CMD_TARGET_SESSION_USAGE,

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

       .flags = CMD_READONLY|CMD_AFTERHOOK,
       .exec = cmd_list_clients_exec
};

static enum cmd_retval
cmd_list_clients_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 client           *c;
       struct session          *s;
       struct format_tree      *ft;
       const char              *template, *filter;
       u_int                    idx;
       char                    *line, *expanded;
       int                      flag;

       if (args_has(args, 't'))
               s = target->s;
       else
               s = NULL;

       if ((template = args_get(args, 'F')) == NULL)
               template = LIST_CLIENTS_TEMPLATE;
       filter = args_get(args, 'f');

       idx = 0;
       TAILQ_FOREACH(c, &clients, entry) {
               if (c->session == NULL || (s != NULL && s != c->session))
                       continue;

               ft = format_create(cmdq_get_client(item), item, FORMAT_NONE, 0);
               format_add(ft, "line", "%u", idx);
               format_defaults(ft, c, NULL, NULL, NULL);

               if (filter != NULL) {
                       expanded = format_expand(ft, filter);
                       flag = format_true(expanded);
                       free(expanded);
               } else
                       flag = 1;
               if (flag) {
                       line = format_expand(ft, template);
                       cmdq_print(item, "%s", line);
                       free(line);
               }

               format_free(ft);

               idx++;
       }

       return (CMD_RETURN_NORMAL);
}