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(define-module (src html)
#:use-module (src dates)
#:use-module (srfi srfi-9)
#:use-module (sxml simple)
#:use-module (src mime-types)
#:export (render
person
post
index
media
css
js))
(define-record-type <index>
(%make-index title short-description long-description uri atom-feed-uri author posts styles scripts)
index?
(title index-title)
(short-description index-short-description)
(long-description index-long-description)
(uri index-uri)
(atom-feed-uri index-atom-feed-uri)
(author index-author)
(posts index-posts)
(styles index-styles)
(scripts index-scripts))
(define-record-type <post>
(%make-post id
title
published
updated
authors
summary-html
content-html
categories
contributors
media)
post?
(id post-id)
(title post-title)
(published post-published)
(updated post-updated)
(authors post-authors)
(summary-html post-summary-html)
(content-html post-content-html)
(categories post-categories)
(contributors post-contributors)
(media post-media))
(define-record-type <media>
(%make-media type uri path)
media?
(type media-type)
(uri media-uri)
(path media-path))
(define-record-type <person>
(%make-person name email uri)
person?
(name person-name)
(email person-email)
(uri person-uri))
(define* (index #:key (title "")
(short-description "")
(long-description "")
(uri "")
(atom-feed-uri #f)
(author (person ""))
(posts '())
(styles '())
(scripts '())
#:allow-other-keys)
(%make-index
title
short-description
long-description
uri
atom-feed-uri
author
(sort posts (lambda (a b)
(date>? (post-published a) (post-published b))))
styles
scripts))
(define* (post #:key (id #f)
(title "")
(published unix-date)
(updated unix-date)
(authors '())
(summary-html '())
(content-html '())
(categories '())
(contributors '())
(media '())
#:allow-other-keys)
(define (id-from-title title)
(string-map (lambda (c)
(if (char-set-contains? char-set:letter c) c #\-))
title))
(%make-post (or id (id-from-title title))
title
published
(find-newest (list published updated))
authors
summary-html
content-html
categories
contributors
media))
(define* (media path #:key (uri "")
#:allow-other-keys)
(define (type path)
(let* ((extension (car (last-pair (string-split path #\.))))
(type (assoc-ref mime-types extension)))
(if (string? type) type (throw "Unknown mime-type"))))
(%make-media (type path)
uri
path))
(define* (person name #:key (email "")
(uri "")
#:allow-other-keys)
(%make-person name email uri))
; Rendering
(define (render-author author)
`(address (@(class author))
(a (@(rel author)) ,(person-name author))))
(define (render-post post)
`(article (@(class "post")
(id ,(post-id post))) ;; For anchors
(h2 ,(post-title post))
(time (@(datetime ,(date->string/RFC3339 (post-published post)))
(pubdate #t))
,(date->string/RFC3339 (post-published post))) ;; TODO make human readable
,@(map render-author (post-authors post))
(section (@(class summary))
,(post-summary-html post))
(section (@(class content))
,(post-content-html post))))
(define (render-style style)
(if (media? style)
`(link (@(rel stylesheet)
(href ,(media-uri style))))
`(style ,(lambda () (display style)))))
(define (render-script script)
(if (media? script)
`(script (@(src ,(media-uri script))))
`(script ,(lambda () (display script)))))
(define (render-index index)
`(html
(head
(meta (@(author ,(person-name (index-author index)))))
(meta (@(charset "utf-8")))
(meta (@(name "viewport")
(content "width=device-width, initial-scale=1")))
(meta (@(name "description")
(content ,(index-short-description index))))
,(if (not (index-atom-feed-uri index))
`()
`(link (@(rel "alternate")
(type "application/atom+xml")
(href ,(index-atom-feed-uri index)))))
,@(map render-style (index-styles index)))
(body
(h1 (@(class title)) ,(index-title index))
(section (@(class description)) ,(index-long-description index))
,@(map render-post (index-posts index))
,@(map render-script (index-scripts index)))))
(define (render index)
(display "<!DOCTYPE html>")
(sxml->xml (render-index index)))
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