Implement metadata for articles and comments

share/defaultWording.conf

@@ -2,7 +2,9 @@ allLink = See all
 allPage = All articles
 allTaggedPage = All articles tagged ${tag}
 commentsSection = Comments
+dateFormat = en-US
 latestLink = See only latest
 latestPage = Latest articles
 latestTaggedPage = Latest articles tagged ${tag}
+metadata = ${?by ${author} ?}on ${date}${? tagged ${tags}?}
 tagsList = Tags

share/js/domRenderer.js

@@ -8,9 +8,7 @@ function DomRenderer(modules) {
 	function replaceMarkdown() {
 		var div = document.getElementById('contents');
 		if(div.children[0] && div.children[0].tagName.toLowerCase() == 'article') {
-			var re = new RegExp('/' + blog.path.articlesPath + '/([^.]+)\.html');
-			var key = decodeURI(document.location.pathname.replace(re, '$1'));
-			convertArticle(div.children[0], key);
+			convertArticle(div.children[0], true);
 		} else {
 			var articles = div.getElementsByClassName('articles')[0];
 			if(articles != undefined) {
@@ -23,13 +21,15 @@ function DomRenderer(modules) {
 		}
 	}
 
-	function convertArticle(article, key) {
+	function convertArticle(article, comments) {
 		var header = article.getElementsByTagName('header')[0];
+		header.appendChild(modules.metadata.get(article.id));
 		var text = article.getElementsByTagName('pre')[0];
 		if(text != undefined) {
 			article.replaceChild(getDiv(text.innerText), text);
-			if(key != undefined) {
-				modules.comments.get(key).forEach(article.appendChild.bind(article));
+			if(comments) {
+				modules.metadata.getComments(article.id)
+					.forEach(article.appendChild.bind(article));
 			}
 		} else {
 			console.log('No content found for this article');
@@ -58,16 +58,17 @@ function DomRenderer(modules) {
 			modules.dom.make('header', {}, [
 				modules.dom.make('a', {href: url}, [
 					modules.dom.make('h1', {innerText: blog.articles[key].title})
-				])
+				]),
+				modules.metadata.get(key)
 			]),
 			div
-		].concat(limit != undefined ? [] : modules.comments.get(key)));
+		].concat(limit != undefined ? [] : modules.metadata.getComments(key)));
 	}
 
 	function pageTitle(tag, all) {
 		if(tag != undefined) {
-			var template = blog.wording[all ? 'allTaggedPage' : 'latestTaggedPage'];
-			return template.replace(/([^$]|^)\$(?:{tag}|tag([^a-zA-Z]|$))/, '$1' + tag + '$2');
+			var template = all ? 'allTaggedPage' : 'latestTaggedPage';
+			return modules.template.render(template, {tag: tag});
 		} else {
 			return blog.wording[all ? 'allPage' : 'latestPage'];
 		}

share/js/main.js

@@ -5,9 +5,10 @@ window.addEventListener('load', function() {
 	var fun = unitJS.Fun();
 	var md = new Remarkable(remarkableConfig);
 	md.block.ruler.enable(['footnote']);
-	var comments = Comments({async: async, cache: cache, dom: dom});
-	var domRenderer = DomRenderer({comments: comments, fun: fun, md: md, dom: dom});
-	var navigation = Navigation({async: async, cache: cache, fun: fun, md: md, dom: dom, domRenderer: domRenderer});
+	var template = Template();
+	var metadata = Metadata({async: async, cache: cache, dom: dom, fun:fun, template: template});
+	var domRenderer = DomRenderer({dom: dom, fun: fun, md: md, metadata: metadata, template: template});
+	var navigation = Navigation({async: async, cache: cache, dom: dom, domRenderer: domRenderer, fun: fun, md: md});
 	domRenderer.replaceMarkdown();
 	navigation.hijackLinks();
 });

share/js/metadata.js

@@ -1,4 +1,4 @@
-function Comments(modules) {
+function Metadata(modules) {
 	var comments = modules.cache.make(function(threadId) {
 		return modules.async.bind(
 			modules.async.http({method: 'GET', url: url(threadId)}),
@@ -16,14 +16,15 @@ function Comments(modules) {
 		);
 	})
 	return {
-		get: get
+		get: get,
+		getComments: getComments
 	};
 
 	function url(threadId) {
 		return blog.path.commentsAt + '/api/v1/statuses/' + threadId + '/context';
 	}
 
-	function get(articleKey) {
+	function getComments(articleKey) {
 		var threadId = blog.articles[articleKey].metadata.comments;
 		if(blog.path.commentsAt != undefined && threadId != undefined) {
 			var ul = modules.dom.make('ul');
@@ -55,15 +56,58 @@ function Comments(modules) {
 	function render(comments) {
 		return comments.descendants.map(function(descendant) {
 			return modules.dom.make('li', {}, [
-				modules.dom.make('cite', {}, [
-					modules.dom.make('a', {
-						href: descendant.account.url,
-						innerText: descendant.account.username
-					}),
-					modules.dom.make('p', {innerText: descendant.created_at}),
-					modules.dom.make('div', {innerHTML: descendant.content})
-				])
+				modules.dom.make('div', {
+					innerHTML: modules.template.render('metadata', {
+						author: author(descendant.account.url, descendant.account.username),
+						date: date(descendant.created_at)
+					})
+				}),
+				modules.dom.make('div', {innerHTML: descendant.content})
 			]);
 		});
 	}
+
+	function author(key, name) {
+		var authorUrl = key;
+		if(blog.articles[key] != undefined) {
+			authorUrl = blog.articles[key].metadata.author;
+		}
+		if(authorUrl) {
+			var author = name || authorUrl.replace(/.*\//, '');
+				return '<a href="' + authorUrl + '">' + author + '</a>';
+			}
+	}
+
+	function date(key) {
+		if(blog.articles[key] != undefined) {
+			var date = new Date(blog.articles[key].metadata.date * 1000);
+		} else {
+			var date = new Date(key);
+		}
+		var format = blog.wording.dateFormat;
+		if(format[0] != '[') {
+			if(format[0] != '"') {
+				format = '"' + format + '"';
+			}
+			format = '[' + format + ']';
+		}
+		return Date.prototype.toLocaleDateString.apply(date, JSON.parse(format));
+	}
+
+	function tags(key) {
+		var tags = blog.articles[key].tagged;
+		return tags.length < 1 ? null : tags.map(function(tag) {
+			return '<a class="tag" href="/' + tag + '">' + tag + '</a>';
+		}).join(', ');
+	}
+
+	function get(key) {
+		return modules.dom.make('div', {
+			innerHTML: modules.template.render('metadata', {
+				author: author(key),
+				date: date(key),
+				tags: tags(key)
+			})
+		});
+	}
 }

share/js/template.js

@@ -0,0 +1,35 @@
+function Template() {
+	return {
+		render: render
+	};
+
+	function render(template, environment) {
+		if(blog.wording[template] != undefined) {
+			var template = blog.wording[template];
+		}
+		template = template.replace(/\${\?((?:[^?]|\?[^}])*)\?}/g, renderSub(environment));
+		var failed = [false];
+		var result = template.replace(
+			/([^$]|^)\$(?:{(\w+)}|(\w+)\b)/g,
+			substitute(environment, failed)
+		);
+		return failed[0] ? null : result;
+	}
+
+	function renderSub(environment) {
+		return function(_, sub) {
+			return render(sub, environment) || '';
+		};
+	}
+
+	function substitute(environment, failed) {
+		return function(_, before, bracketed, raw) {
+			var replaced = environment[bracketed || raw];
+			if(replaced != undefined) {
+				return before + replaced;
+			} else {
+				failed[0] = true;
+			}
+		}
+	}
+}

src/Blog/Wording.hs

@@ -28,22 +28,25 @@ data Wording = Wording {
     , allPage :: Text
     , allTaggedPage :: Template
     , commentsSection :: Text
+    , dateFormat :: Text
     , latestLink :: Text
     , latestPage :: Text
     , latestTaggedPage :: Template
+    , metadata :: Text
     , tagsList :: Text
   }
 
 keys :: [String]
 keys = [
-      "allLink", "allPage", "allTaggedPage", "commentsSection"
-    , "latestLink", "latestPage", "latestTaggedPage", "tagsList"
+      "allLink", "allPage", "allTaggedPage", "commentsSection", "dateFormat"
+    , "latestLink", "latestPage", "latestTaggedPage", "metadata", "tagsList"
   ]
 
 values :: [Wording -> Text]
 values = [
       allLink, allPage, showTemplate . allTaggedPage, commentsSection
-    , latestLink, latestPage, showTemplate . latestTaggedPage, tagsList
+    , dateFormat, latestLink, latestPage, showTemplate . latestTaggedPage
+    , metadata, tagsList
   ]
 
 texts :: Wording -> [Text]
@@ -97,8 +100,10 @@ build arguments = do
       , allPage = wording ! "allPage"
       , allTaggedPage
       , commentsSection = wording ! "commentsSection"
+      , dateFormat = wording ! "dateFormat"
       , latestLink = wording ! "latestLink"
       , latestPage = wording ! "latestPage"
       , latestTaggedPage
+      , metadata = wording ! "metadata"
       , tagsList = wording ! "tagsList"
     }

src/Dom.hs

@@ -28,7 +28,7 @@ class Page a where
   content :: a -> HtmlGenerator ()
 
 instance Page Article where
-  card (Article {title, metadata}) = do
+  card (Article {title, Article.metadata}) = do
     description <- getDescription (Map.lookup "summary" metadata)
     makeCard title (pack description) (Map.lookup "featuredImage" metadata)
     where
@@ -57,7 +57,7 @@ instance Page ArticlesList where
 article :: Bool -> Article -> HtmlGenerator ()
 article raw (Article {key, body, title}) = do
   url <- absoluteLink . (</> key <.> extension) <$> (Blog.get $path.$articlesPath)
-  article_ (do
+  article_ [id_ $ pack key] (do
       header_ (do
           a_ [href_ . pack $ url] . h1_ $ toHtml title
         )
@@ -76,7 +76,9 @@ makeCard title description image = do
     maybeImage = maybe (return ()) (og "image" . pack)
 
 tag :: String -> HtmlGenerator ()
-tag tagName = li_ (a_ [href_ . pack $ absoluteLink tagName] $ toHtml tagName)
+tag tagName = li_ (
+    a_ [href_ . pack $ absoluteLink tagName, class_ "tag"] $ toHtml tagName
+  )
 
 defaultBanner :: HtmlGenerator ()
 defaultBanner = do