summaryrefslogtreecommitdiffstats
path: root/emacsconf-ical.el
blob: cf59a31727f863b155d352bfe12cda159b2a378e (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
;;; emacsconf-ical.el ---  ical export  -*- lexical-binding: t; -*-

;; Copyright (C) 2021  Sacha Chua

;; Author: Sacha Chua <sacha@sachachua.com>
;; Keywords: multimedia

;; This program 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.

;; This program 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 this program.  If not, see <https://www.gnu.org/licenses/>.

;;; Commentary:

;; 

;;; Code:

(defvar emacsconf-ical-public-directory (concat "/ssh:media:/var/www/media.emacsconf.org/" emacsconf-year)
  "Directory to post ics files to.")

(defun emacsconf-ical-send-via-email ()
  (interactive)
  (let ((ical-file (expand-file-name
                    (concat (org-entry-get (point) "SLUG") ".ics")
                    (expand-file-name "ics" (file-name-directory emacsconf-org-file))))
        (ical-entry (emacsconf-ical-convert-entry-to-string (format-time-string "%Y%m%dT%H%M%SZ" nil t))))
    (with-temp-file ical-file
      (insert ical-entry))
    (emacsconf-mail-speaker "Calendar entry")
    (mml-attach-file ical-file)))

(defun emacsconf-ical-convert-entry-to-string (&optional updated)
  (string-join 
   (list
    "BEGIN:VCALENDAR"
    "VERSION:2.0"
    "PRODID:EmacsConf"
    (concat "X-WR-CALNAME:EmacsConf " emacsconf-year)
    "X-WR-CALNAME:EmacsConf"
    "CALSCALE:GREGORIAN"
    "METHOD:PUBLISH"
    (emacsconf-ical-format-talk (emacsconf-get-talk-info-for-subtree) updated)
    "END:VCALENDAR")
   "\r\n"))

(defun emacsconf-ical-format-talk (o &optional updated)
  (string-join
   (delq
    nil
    (list
     "BEGIN:VEVENT"
     (string-trim (org-icalendar-fold-string
                   (org-icalendar-cleanup-string
                    (concat "SUMMARY:" (plist-get o :title)
                            (if (plist-get o :speakers)
                                (concat " - " (plist-get o :speakers))
                              "")))))
     "ORGANIZER:EmacsConf"
     (concat "LOCATION:" "https://emacsconf.org/")
     ;; (concat "UID:emacsconf-" emacsconf-year "-" (plist-get o :slug))
     (concat "UID:" (plist-get o :uuid))
     (concat "URL:" "https://emacsconf.org/" emacsconf-year "/talks/" (plist-get o :slug))
     (concat "DTSTART:" (format-time-string "%Y%m%dT%H%M%SZ" (plist-get o :start-time) t))
     (concat "DTEND:" (format-time-string "%Y%m%dT%H%M%SZ" (plist-get o :end-time) t))
     (if updated (concat "DTSTAMP:" updated))
     (string-trim
      (org-icalendar-fold-string
       (org-icalendar-cleanup-string
        (concat "DESCRIPTION: Times are approximate and will probably change.\n"
                "https://emacsconf.org/" emacsconf-year "/talks/" (plist-get o :slug) "\n"
                (emacsconf-surround (if (length= (plist-get o :speakers) 1) "Speaker: " "Speakers: ")
                                    (plist-get o :speakers)
                                    "\n" "")
                (plist-get o :markdown)))))
     "END:VEVENT"))
   "\r\n"))

(defun emacsconf-format-as-ical (emacsconf-info)
  (require 'ox-icalendar)
  (let ((updated (format-time-string "%Y%m%dT%H%M%SZ" nil t)))
    (string-join 
     (list
      "BEGIN:VCALENDAR"
      "VERSION:2.0"
      "PRODID:EmacsConf"
      (concat "X-WR-CALNAME:EmacsConf " emacsconf-year)
      "X-WR-CALNAME:EmacsConf"
      "CALSCALE:GREGORIAN"
      "METHOD:PUBLISH"
      (mapconcat (lambda (o) (emacsconf-ical-format-talk o updated))
                 (seq-remove (lambda (o) (string= (plist-get o :status) "CANCELLED"))
                             (emacsconf-filter-talks emacsconf-info))
                 "\r\n")
      "END:VCALENDAR")
     "\r\n")))

(defun emacsconf-ical-generate-all ()
  (interactive)
  (let* ((emacsconf-talk-info-functions (append emacsconf-talk-info-functions (list 'emacsconf-get-abstract-from-wiki)))
         (info (emacsconf-get-talk-info)))
    (emacsconf-ical-generate-main info)
    (emacsconf-ical-generate-tracks info)))

(defun emacsconf-ical-generate-main (&optional info)
  (with-temp-file (expand-file-name "emacsconf.ics"
                                    (or emacsconf-ical-public-directory
                                        (expand-file-name emacsconf-year emacsconf-directory)))
    (insert (emacsconf-format-as-ical (or info (emacsconf-get-talk-info))))))

(defun emacsconf-ical-generate-tracks (&optional info)
  (interactive)
  (mapc (lambda (entry)
          (let ((track (emacsconf-get-track (car entry))))
            (when track
              (with-temp-file (expand-file-name (format "emacsconf-%s.ics" (plist-get track :id))
                                                (or emacsconf-ical-public-directory
                                                    (expand-file-name emacsconf-year emacsconf-directory)))
                (insert (emacsconf-format-as-ical (cdr entry)))))))
        (seq-group-by (lambda (o) (plist-get o :track)) (or info (emacsconf-get-talk-info)))))

(provide 'emacsconf-ical)