/* $OpenBSD: cmd-show-prompt-history.c,v 1.5 2026/06/25 11:39:11 nicm Exp $ */

/*
 * Copyright (c) 2021 Anindya Mukherjee <anindya49@hotmail.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 "tmux.h"

#include <stdlib.h>

/*
 * Show or clear prompt history.
 */

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

const struct cmd_entry cmd_show_prompt_history_entry = {
        .name = "show-prompt-history",
        .alias = "showphist",

        .args = { "T:", 0, 0, NULL },
        .usage = "[-T prompt-type]",

        .flags = CMD_AFTERHOOK,
        .exec = cmd_show_prompt_history_exec
};

const struct cmd_entry cmd_clear_prompt_history_entry = {
        .name = "clear-prompt-history",
        .alias = "clearphist",

        .args = { "T:", 0, 0, NULL },
        .usage = "[-T prompt-type]",

        .flags = CMD_AFTERHOOK,
        .exec = cmd_show_prompt_history_exec
};

static enum cmd_retval
cmd_show_prompt_history_exec(struct cmd *self, struct cmdq_item *item)
{
        struct args             *args = cmd_get_args(self);
        const char              *typestr = args_get(args, 'T');
        enum prompt_type         type;
        u_int                    t, h;
        const char              *v;

        if (cmd_get_entry(self) == &cmd_clear_prompt_history_entry) {
                if (typestr == NULL) {
                        for (t = 0; t < PROMPT_NTYPES; t++)
                                prompt_history_clear(t);
                } else {
                        type = prompt_type(typestr);
                        if (type == PROMPT_TYPE_INVALID) {
                                cmdq_error(item, "invalid type: %s", typestr);
                                return (CMD_RETURN_ERROR);
                        }
                        prompt_history_clear(type);
                }
                return (CMD_RETURN_NORMAL);
        }

        if (typestr == NULL) {
                for (t = 0; t < PROMPT_NTYPES; t++) {
                        typestr = prompt_type_string(t);
                        cmdq_print(item, "History for %s:\n", typestr);
                        for (h = 0; h < prompt_history_size(t); h++) {
                                v = prompt_history_get(t, h);
                                cmdq_print(item, "%d: %s", h + 1, v);
                        }
                        cmdq_print(item, "%s", "");
                }
        } else {
                type = prompt_type(typestr);
                if (type == PROMPT_TYPE_INVALID) {
                        cmdq_error(item, "invalid type: %s", typestr);
                        return (CMD_RETURN_ERROR);
                }
                cmdq_print(item, "History for %s:\n", prompt_type_string(type));
                for (h = 0; h < prompt_history_size(type); h++) {
                        v = prompt_history_get(type, h);
                        cmdq_print(item, "%d: %s", h + 1, v);
                }
                cmdq_print(item, "%s", "");
        }

        return (CMD_RETURN_NORMAL);
}