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;;;; -*- coding: utf-8; mode: lisp -*-
;;;; Copyright 2007, Matthias Andreas Benkard.
;;;------------------------------------------------------------------------
;;; This file is part of The Mulkblog Project.
;;;
;;; The Mulkblog Project is free software. You can redistribute it and/or
;;; modify it under the terms of the Affero General Public License as
;;; published by Affero, Inc.; either version 1 of the License, or
;;; (at your option) any later version.
;;;
;;; The Mulkblog Project 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
;;; Affero General Public License for more details.
;;;
;;; You should have received a copy of the Affero General Public
;;; License in the COPYING file that comes with The Mulkblog Project; if
;;; not, write to Affero, Inc., 510 Third Street, Suite 225, San
;;; Francisco, CA 94107 USA.
;;;------------------------------------------------------------------------
(in-package #:mulk.journal)
;;; (@* "Class definitions")
(defclass journal-entry ()
((id :type (integer 0)
:accessor id-of
:initarg :id)
(uuid :type string
:accessor uuid-of
:initarg :uuid)
(file :type (or null pathname)
:accessor file-of
:initarg :file)
(title :type string
:accessor title-of
:initarg :title
:initform "")
(date :type (integer 0)
:accessor date-of
:initarg :date)
(last-modification :type (or null (integer 0))
:accessor last-modification-of
:initarg :last-modification
:initform nil)
(body :type string
:accessor body-of
:initarg :body
:initform "")
(categories :type list
:accessor categories-of
:initarg :categories
:initform '())
(comments :type list
:accessor comments-about
:initarg :comments
:initform '())))
(defclass journal-comment ()
((id :type (integer 0)
:accessor id-of
:initarg :id)
(uuid :type string
:accessor uuid-of
:initarg :uuid)
(date :type (integer 0)
:accessor date-of
:initarg :date)
(body :type string
:accessor body-of
:initarg :body
:initform "")
(author :type (or null string)
:accessor author-of
:initarg :author
:initform nil)
(email :type (or null string)
:accessor email-of
:initarg :email
:initform nil)
(website :type (or null string)
:accessor website-of
:initarg :website
:initform nil)))
;; (@* "Journal entry operations")
(defmethod shared-initialize ((journal-entry journal-entry) slot-names
&key)
(with-slots (id) journal-entry
(when (or (eq slot-names t)
(member 'id slot-names))
(setf id (1+ (reduce #'max *journal-entries*
:key #'id-of
:initial-value -1)))))
(call-next-method))
(defun find-entry (number)
(find number *journal-entries* :key #'id-of))
(defun journal-markup->html (markup)
(if (string= "" markup)
markup
(handler-bind
((error ;; method-call-type-error or not
;; Work around a weird bug in cl-markdown or CLISP. (I
;; don't know which.)
#'(lambda (c)
(declare (ignore c))
#+nil (<:as-html
(with-output-to-string (s)
(system::pretty-print-condition c s)))
(invoke-restart 'return nil))))
(fixup-markdown-output
(with-output-to-string (s)
;; Normally, we shouldn't need to create our own stream to
;; write into, but this is, of course, yet another
;; CLISP/Markdown hack, because Markdown's default
;; *OUTPUT-STREAM* seems to spontaneously close itself, making
;; everything break when Markdown tries to render more stuff.
(markdown markup :stream s))))))
(defun read-journal-entry (filename)
(with-open-file (file filename :direction :input
:external-format #+clisp charset:utf-8
#+sbcl :utf-8)
(let ((*read-eval* nil))
(let ((data (read file)))
(let ((comments (member :comments data)))
(when comments
(setf (second comments)
(mapcar #'(lambda (comment-record)
(apply #'make-instance
'journal-comment
comment-record))
(second comments)))))
(apply #'make-instance 'journal-entry :file filename data)))))
(defun find-journal-entry-files ()
(let ((journal-entry-files (list)))
(when (file-exists-p *entry-dir*)
(walk-directory *entry-dir*
#'(lambda (x)
(push x journal-entry-files))
:test (complement #'directory-pathname-p)))
journal-entry-files))
(defun read-journal-entries ()
(let ((journal-entry-files (find-journal-entry-files)))
(sort (mapcar #'read-journal-entry journal-entry-files)
#'>=
:key #'id-of)))
(defun compute-journal-last-modified-date ()
#-clisp (get-universal-time)
#+clisp
(max (compute-script-last-modified-date)
(loop for file in (find-journal-entry-files)
maximize (posix:file-stat-mtime (posix:file-stat file)))))
(defun write-out-entry (entry)
(assert (file-of entry))
(with-open-file (out (file-of entry) :direction :output
:if-exists :supersede
:external-format #+clisp charset:utf-8
#+sbcl :utf-8)
(with-slots (id uuid date last-modification body title categories comments)
entry
(write `(:id ,id
:uuid ,uuid
:date ,date
:last-modification ,last-modification
:title ,title
:categories ,categories
:body ,body
:comments ,(loop for comment in comments
collect
(with-slots (id uuid date author body email
website)
comment
`(:id ,id
:uuid ,uuid
:date ,date
:author ,author
:email ,email
:website ,website
:body ,body))))
:stream out))))
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