/**
 * send.C: This file contains code for the Memoserv SEND function
 *
 * Copyright © 2007 Pippijn van Steenhoven / The Ermyth Team
 * Rights to this code are as documented in COPYING.
 *
 *
 * Portions of this file were derived from sources bearing the following license:
 * Copyright © 2005 Atheme Development Group
 * Rights to this code are as documented in doc/pod/license.pod.
 *
 * $Id: send.C,v 1.8 2007/09/22 14:27:27 pippijn Exp $
 */

#include "atheme.h"
#include <libermyth.h>
#include <ermyth/module.h>
#include <account/myuser.h>
#include <account/mymemo.h>

static char const rcsid[] = "$Id: send.C,v 1.8 2007/09/22 14:27:27 pippijn Exp $";

REGISTER_MODULE ("memoserv/send", false, "The Ermyth Team <http://ermyth.xinutec.org>");

static void ms_cmd_send (sourceinfo_t *si, int parc, char *parv[]);

command_t const ms_send = { "SEND", N_("Sends a memo to a user."), AC_NONE, 2, ms_cmd_send };

E cmdvec ms_cmdtree;
E helpvec ms_helptree;

bool
_modinit (module *m)
{
  ms_cmdtree << ms_send;
  help_addentry (ms_helptree, "SEND", "help/memoserv/send", NULL);

  return true;
}

void
_moddeinit ()
{
  ms_cmdtree >> ms_send;
  help_delentry (ms_helptree, "SEND");
}

static void
ms_cmd_send (sourceinfo_t *si, int parc, char *parv[])
{
  /* misc structs etc */
  user_t *tu;
  myuser_t *tmu;
  mymemo_t *memo;
  command_t const *cmd;
  myuser_t::mzignore_vector::iterator miit, miit_end;

  /* Grab args */
  char *target = parv[0];
  char *m = parv[1];

  /* Arg validation */
  if (!target || !m)
    {
      command_fail (si, fault::needmoreparams, STR_INSUFFICIENT_PARAMS, "SEND");

      command_fail (si, fault::needmoreparams, "Syntax: SEND <user> <memo>");

      return;
    }

  /* user logged in? */
  if (!si->smu)
    {
      command_fail (si, fault::noprivs, _("You are not logged in."));
      return;
    }

  if (si->smu->flags & MU_WAITAUTH)
    {
      command_fail (si, fault::notverified, _("You need to verify your email address before you may send memos."));
      return;
    }

  /* rate limit it -- jilles */
  if (NOW - si->smu->memo_ratelimit_time > MEMO_MAX_TIME)
    si->smu->memo_ratelimit_num = 0;
  if (si->smu->memo_ratelimit_num > MEMO_MAX_NUM && !has_priv (si, PRIV_FLOOD))
    {
      command_fail (si, fault::toomany, _("You have used this command too many times; please wait a while and try again."));
      return;
    }
  si->smu->memo_ratelimit_num++;
  si->smu->memo_ratelimit_time = NOW;

  /* Check for memo text length -- includes/common.h */
  if (strlen (m) >= MEMOLEN)
    {
      command_fail (si, fault::badparams, "Please make sure your memo is less than %d characters", MEMOLEN);

      return;
    }

  /* Check to make sure the memo doesn't contain hostile CTCP responses.
   * realistically, we'll probably want to check the _entire_ message for this... --nenolod
   */
  if (*m == '\001')
    {
      command_fail (si, fault::badparams, _("Your memo contains invalid characters."));
      return;
    }

  if (*target != '#')
    {
      /* See if target is valid */
      if (!(tmu = myuser_t::find_ext (target)))
	{
	  command_fail (si, fault::nosuch_target, "\2%s\2 is not registered.", target);

	  return;
	}

      /* Does the user allow memos? --pfish */
      if (tmu->flags & MU_NOMEMO)
	{
	  command_fail (si, fault::noprivs, "\2%s\2 does not wish to receive memos.", target);

	  return;
	}

      /* Check to make sure target inbox not full */
      if (tmu->memos.size () >= me.mdlimit)
	{
	  command_fail (si, fault::toomany, _("%s's inbox is full"), target);
	  logcommand (si, CMDLOG_SET, "failed SEND to %s (target inbox full)", tmu->name);
	  return;
	}


      /* Make sure we're not on ignore */
      for (miit = tmu->memo_ignores.begin (), miit_end = tmu->memo_ignores.end (); miit != miit_end; ++miit)
        {
          if (!strcasecmp (*miit, si->smu->name))
            {
              logcommand (si, CMDLOG_SET, "failed SEND to %s (on ignore list)", tmu->name);
              command_success_nodata (si, _("The memo has been successfully sent to \2%s\2."), target);
              return;
            }
        }
      logcommand (si, CMDLOG_SET, "SEND to %s", tmu->name);

      /* Malloc and populate struct */
      memo = new mymemo_t;
      memo->sent = NOW;
      memo->status = 0;
      strlcpy (memo->sender, si->smu->name, NICKLEN);
      strlcpy (memo->text, m, MEMOLEN);

      /* Create a linked list node and add to memos */
      tmu->memos.insert (memo);
      tmu->memoct_new++;

      /* Should we email this? */
      if (tmu->flags & MU_EMAILMEMOS)
	{
	  if (sendemail (si->su, EMAIL_MEMO, tmu, memo->text))
	    {
	      command_success_nodata (si, _("Your memo has been emailed to \2%s\2."), target);
	      return;
	    }
	}

      /* Is the user online? If so, tell them about the new memo. */
      /* Note: do not disclose other nicks they're logged in with
       * -- jilles
       *
       * Actually, I don't see the point in this at all. If they want this information,
       * they should use WHOIS. --nenolod
       */
      tu = user_find_named (target);
      if (tu != NULL && tu->myuser == tmu)
	command_success_nodata (si, _("%s is currently online, and you may talk directly, by sending a private message."), target);

      if (si->su == NULL || !irccasecmp (si->su->nick, si->smu->name))
	tmu->notice (memosvs.nick, "You have a new memo from %s.", si->smu->name);
      else
	tmu->notice (memosvs.nick, "You have a new memo from %s (nick: %s).", si->smu->name, si->su->nick);

      /* Tell user memo sent */
      command_success_nodata (si, _("The memo has been successfully sent to \2%s\2."), target);
    }
  else
    {
      cmd = si->service->cmdtree->find ("SENDOPS");
      if (cmd != NULL)
	cmd->exec (si->service, si, parc, parv);
      else
	command_fail (si, fault::nosuch_target, _("Channel memos are administratively disabled."));
    }

  return;
}