/* $OpenBSD: cmd-show-messages.c,v 1.37 2025/11/18 08:37:54 nicm Exp $ */

/*
 * Copyright (c) 2009 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 <string.h>
#include <time.h>
#include <unistd.h>
#include <vis.h>

#include "tmux.h"

/*
 * Show message log.
 */

#define SHOW_MESSAGES_TEMPLATE \
        "#{t/p:message_time}: #{message_text}"

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

const struct cmd_entry cmd_show_messages_entry = {
        .name = "show-messages",
        .alias = "showmsgs",

        .args = { "JTt:", 0, 0, NULL },
        .usage = "[-JT] " CMD_TARGET_CLIENT_USAGE,

        .flags = CMD_AFTERHOOK|CMD_CLIENT_TFLAG|CMD_CLIENT_CANFAIL,
        .exec = cmd_show_messages_exec
};

static int
cmd_show_messages_terminals(struct cmd *self, struct cmdq_item *item, int blank)
{
        struct args     *args = cmd_get_args(self);
        struct client   *tc = cmdq_get_target_client(item);
        struct tty_term *term;
        u_int            i, n;

        n = 0;
        LIST_FOREACH(term, &tty_terms, entry) {
                if (args_has(args, 't') && tc != NULL && term != tc->tty.term)
                        continue;
                if (blank) {
                        cmdq_print(item, "%s", "");
                        blank = 0;
                }
                cmdq_print(item, "Terminal %u: %s for %s, flags=0x%x:", n,
                    term->name, term->tty->client->name, term->flags);
                n++;
                for (i = 0; i < tty_term_ncodes(); i++)
                        cmdq_print(item, "%s", tty_term_describe(term, i));
        }
        return (n != 0);
}

static enum cmd_retval
cmd_show_messages_exec(struct cmd *self, struct cmdq_item *item)
{
        struct args             *args = cmd_get_args(self);
        struct message_entry    *msg;
        char                    *s;
        int                      done, blank;
        struct format_tree      *ft;

        done = blank = 0;
        if (args_has(args, 'T')) {
                blank = cmd_show_messages_terminals(self, item, blank);
                done = 1;
        }
        if (args_has(args, 'J')) {
                job_print_summary(item, blank);
                done = 1;
        }
        if (done)
                return (CMD_RETURN_NORMAL);

        ft = format_create_from_target(item);
        TAILQ_FOREACH_REVERSE(msg, &message_log, message_list, entry) {
                format_add(ft, "message_text", "%s", msg->msg);
                format_add(ft, "message_number", "%u", msg->msg_num);
                format_add_tv(ft, "message_time", &msg->msg_time);

                s = format_expand(ft, SHOW_MESSAGES_TEMPLATE);
                cmdq_print(item, "%s", s);
                free(s);
        }
        format_free(ft);

        return (CMD_RETURN_NORMAL);
}