From 4e64115254237730767b8094f3c189806316d31b Mon Sep 17 00:00:00 2001
From: Arun Isaac
Date: Sat, 1 Aug 2020 16:58:49 +0530
Subject: Introduce ennum-link type.

* ennum.el (ennum-link): New type.
(ennum--read-post, ennum-publish-link): Use ennum-link type.
---
 ennum.el | 41 ++++++++++++++++++++++++++---------------
 1 file changed, 26 insertions(+), 15 deletions(-)

(limited to 'ennum.el')

diff --git a/ennum.el b/ennum.el
index 8d99098..14b0533 100644
--- a/ennum.el
+++ b/ennum.el
@@ -136,6 +136,10 @@ respectively by - and _, and the pad character = is optional."
   summary tags thumbnail title translation-group translations
   video-posters)
 
+(cl-defstruct (ennum-link (:constructor ennum-make-link)
+                          (:copier nil))
+  type path)
+
 (defun ennum-posts (posts-directory)
   (sort (seq-mapcat
          ;; Set translations slot of post objects.
@@ -190,7 +194,9 @@ respectively by - and _, and the pad character = is optional."
                           (`(link ,properties . ,_)
                            (let ((link-type (org-element-property :type link)))
                              (when (member link-type (list "image" "static" "video"))
-                               (cons link-type (org-element-property :path link))))))))))
+                               (ennum-make-link
+                                :type (intern link-type)
+                                :path (org-element-property :path link))))))))))
         (ennum-make-post
          :filename filename
          :slug (file-name-base filename)
@@ -214,17 +220,19 @@ respectively by - and _, and the pad character = is optional."
          :tags (plist-get metadata :filetags)
          :thumbnail (or (plist-get metadata :thumbnail)
                         (seq-some (lambda (link)
-                                    (pcase link
-                                      (`("image" . ,path) path)
-                                      (`("video" . ,path) (ennum-video-poster path))))
+                                    (let ((path (ennum-link-path link)))
+                                      (pcase (ennum-link-type link)
+                                        ('image path)
+                                        ('video (ennum-video-poster path)))))
                                   links))
          :title (funcall export (first (plist-get metadata :title)))
          :translation-group (or (plist-get metadata :translation-group)
                                 (file-name-base filename))
          :video-posters (ennum--filter-map (lambda (link)
-                                             (pcase link
-                                               (`("video" . ,path)
-                                                `(,path . ,(ennum-video-poster path)))))
+                                             (pcase (ennum-link-type link)
+                                               ('video
+                                                (let ((path (ennum-link-path link)))
+                                                  `(,path . ,(ennum-video-poster path))))))
                                            links))))))
 
 (defvar ennum-mandatory-metadata
@@ -521,23 +529,26 @@ if DESTINATION already exists."
   (seq-filter 'identity (seq-map function sequence)))
 
 (defun ennum-publish-link (link)
-  (pcase link
-    (`("image" . ,path)
+  (pcase (ennum-link-type link)
+    ('image
      (seq-map (lambda (width)
                 (ennum-publish-image
-                 (ennum--expand-relative path (ennum-setting :images-directory))
+                 (ennum--expand-relative (ennum-link-path link)
+                                         (ennum-setting :images-directory))
                  width))
               (list (ennum-setting :default-image-width)
                     (ennum-setting :image-link-width))))
-    (`("static" . ,path)
+    ('static
      (list
       (ennum-publish-copy
-       (ennum--expand-relative path (ennum-setting :static-directory)))))
-    (`("video" . ,path)
+       (ennum--expand-relative (ennum-link-path link)
+                               (ennum-setting :static-directory)))))
+    ('video
      (seq-map 'ennum-publish-copy
               (list
-               (ennum--expand-relative path (ennum-setting :video-directory))
-               (ennum--expand-relative (ennum-video-poster path)
+               (ennum--expand-relative (ennum-link-path link)
+                                       (ennum-setting :video-directory))
+               (ennum--expand-relative (ennum-video-poster (ennum-link-path link))
                                        (ennum-setting :images-directory)))))))
 
 (defmacro ennum-with-current-directory (directory &rest body)
-- 
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