/* $OpenBSD$ */

/*
* 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 "tmux.h"

/*
* List paste buffers.
*/

#define LIST_BUFFERS_TEMPLATE                                           \
       "#{buffer_name}: #{buffer_size} bytes: \"#{buffer_sample}\""

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

const struct cmd_entry cmd_list_buffers_entry = {
       .name = "list-buffers",
       .alias = "lsb",

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

       .flags = CMD_AFTERHOOK,
       .exec = cmd_list_buffers_exec
};

static enum cmd_retval
cmd_list_buffers_exec(struct cmd *self, struct cmdq_item *item)
{
       struct args             *args = cmd_get_args(self);
       struct paste_buffer     *pb;
       struct format_tree      *ft;
       const char              *template, *filter;
       char                    *line, *expanded;
       int                      flag;

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

       pb = NULL;
       while ((pb = paste_walk(pb)) != NULL) {
               ft = format_create(cmdq_get_client(item), item, FORMAT_NONE, 0);
               format_defaults_paste_buffer(ft, pb);

               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);
       }

       return (CMD_RETURN_NORMAL);
}