;; Copyright (C) 2013  Tom Willemsen <tom at ryuslash dot org>

;; This file is part of Sil

;; Sil is free software: you can redistribute it and/or modify it
;; under the terms of the GNU General Public License as published by
;; the Free Software Foundation, either version 3 of the License, or
;; (at your option) any later version.

;; Sil is distributed in the hope that it will be useful, but WITHOUT
;; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
;; or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
;; License for more details.

;; You should have received a copy of the GNU General Public License
;; along with Sil. If not, see <http://www.gnu.org/licenses/>.

;;; Code:

(in-package :org.ryuslash.sil)

(require 'cl-xmpp-tls)

(export '(sil))

(defvar *connection* nil
  "The connection to the jabber server.")

(defvar *host* "ryuslash.org"
  "The host to log-in on.")

(defvar *username* "sil"
  "The username to log-in with, should not contain the jabber host.")

(defvar *password* "tomtom"
  "The password to log-in with.")

(defvar *resource* "test"
  "The resource to use when logging in.")

(defvar *muc-rooms-alist* '("aethon@muc.ryuslash.org/sil")
  "Any MUCs to join.")

(defvar *jid* "sil@ryuslash.org/test"
  "The JID used.")

(defun get-rc-location ()
  "Get the location of the RC file."
  (let ((xdg (sb-ext:posix-getenv "XDG_DATA_HOME"))
        (home (sb-ext:posix-getenv "HOME")))
   (pathname
    (apply 'concatenate 'string
           (or xdg home)
           (unless xdg "/.config")
           '("/sil/rc.lisp")))))

(defun get-response (message)
  (cond
    ((string-equal (body message) "date")
     (multiple-value-bind (second minute hour date month year day
                                  daylight-p zone) (get-decoded-time)
       (declare (ignore day daylight-p zone))
       (format nil "Date: ~D-~D-~D ~D:~D:~D" date month year hour
               minute second)))
    (t (format nil "auto-reply to: ~A" (from message)))))

(defmethod handle ((connection connection) (message message))
  (if (string-equal (type- message) "groupchat")
      (when (string-equal (body message) "," :end1 1)
        (setf (body message) (subseq (body message) 1))
        (xmpp:message connection "aethon@muc.ryuslash.org"
                      (get-response message) :type :groupchat))
      (xmpp:message connection (from message) (get-response message))))

(defun load-rc ()
  "Load the RC file."
  (let ((*package* (in-package :org.ryuslash.sil)))
    (load (get-rc-location) :if-does-not-exist nil)))

(defun receive ()
  (format t "Recieving~%")
  (handler-case (receive-stanza-loop *connection*)
    (simple-error () (receive))))

(defun sil (args)
  (handler-case
      (progn
        (load-rc)
        (setf *connection* (connect-tls :hostname *host*))
        (auth *connection* "sil" "tomtom" "test")
        (map nil (lambda (ms)
                   (join-chatroom *connection* :room ms :from *jid*))
             *muc-rooms-alist*)
        (receive))
    (sb-sys:interactive-interrupt () (format t "No! Don't leave me. *sob*~%")))
  (disconnect *connection*))