/* Copyright (c) 2002-2010 Dovecot authors, see the included COPYING file */

#include "common.h"
#include "mail-namespace.h"
#include "commands.h"

bool cmd_rename(struct client_command_context *cmd)
{
	struct mail_storage *old_storage, *new_storage;
	struct mailbox_list *list;
	struct mail_namespace *ns;
	const char *oldname, *newname;
	unsigned int oldlen;

	/* <old name> <new name> */
	if (!client_read_string_args(cmd, 2, &oldname, &newname))
		return FALSE;

	if (!client_verify_mailbox_name(cmd, oldname,
					CLIENT_VERIFY_MAILBOX_SHOULD_EXIST))
		return TRUE;
	if (!client_verify_mailbox_name(cmd, newname,
					CLIENT_VERIFY_MAILBOX_SHOULD_NOT_EXIST))
		return TRUE;

	old_storage = client_find_storage(cmd, &oldname);
	if (old_storage == NULL)
		return TRUE;

	new_storage = client_find_storage(cmd, &newname);
	if (new_storage == NULL)
		return TRUE;

	if (old_storage != new_storage) {
		client_send_tagline(cmd,
			"NO Can't rename mailbox to another storage type.");
		return TRUE;
	}

	/* disallow box -> box/child, because it may break clients and there's
	   really no point in doing it anyway. */
	list = mail_storage_get_list(old_storage);
	ns = mailbox_list_get_namespace(list);
	oldlen = strlen(oldname);
	if (strncmp(oldname, newname, oldlen) == 0 &&
	    newname[oldlen] == ns->real_sep) {
		client_send_tagline(cmd,
			"NO Can't rename mailbox under its own child.");
		return TRUE;
	}

	if (mailbox_list_rename_mailbox(list, oldname, newname) < 0)
		client_send_list_error(cmd, list);
	else {
		client_send_tagline(cmd, "OK Rename completed.");
	}
	return TRUE;
}