Add Mastodon comments feature. Fixes #157

www/assets/css/comments.css

@@ -0,0 +1,112 @@
+/**
+* ╭───────────────────────────────────────────────────────────────╮
+* │                          Comments                             │
+* ╰───────────────────────────────────────────────────────────────╯
+**/
+
+#comments-wrapper {
+  margin: 1.5em 0;
+  padding: 0 var(25px);
+}
+
+.comment {
+  display: grid;
+  column-gap: 1rem;
+  grid-template-areas: "avatar name" "avatar time" "avatar post" "...... interactions";
+  grid-template-columns: min-content;
+  justify-items: start;
+  margin: 0 auto 0 -1em;
+  padding: .5em;
+}
+
+.comment.comment-reply {
+  margin: 0 auto 0 1em;
+}
+
+.comment .avatar-link {
+  grid-area: avatar;
+  height: 4rem;
+  position: relative;
+  width: 4rem;
+}
+
+.comment .avatar-link .avatar {
+  height: 100%;
+  width: 100%;
+}
+
+.comment .author {
+  align-items: center;
+  display: flex;
+  font-weight: 700;
+  gap: .5em;
+  grid-area: name;
+}
+
+.comment .author .instance {
+  background-color: var(--bg-accent);
+  color: var(--fg-accent);
+  border-radius: 9999px;
+  font-size: smaller;
+  font-weight: 400;
+  padding: .25em .75em;
+}
+
+.comment .author .instance:hover {
+  opacity: .8;
+  text-decoration: none;
+}
+
+.comment time {
+  grid-area: time;
+  line-height: 3.5rem;
+}
+
+.comment main {
+  grid-area: post;
+}
+
+.comment main p:first-child {
+  margin-top: .25em;
+}
+
+.comment main p:last-child {
+  margin-bottom: 0;
+}
+
+.comment footer {
+  grid-area: interactions;
+  border: none;
+  margin-top: 1em;
+}
+
+.comment footer .faves {
+  color: inheritE
+}
+
+.comment footer .faves:hover {
+  opacity: .8;
+  text-decoration: none;
+}
+
+.comment footer .faves::before {
+  color: red;
+  content: "♥";
+  font-size: 1rem;
+  margin-inline-end: .25em;
+}
+
+.comment .emoji {
+  display: inline;
+  height: 1.25em;
+  vertical-align: middle;
+  width: 1.25em;
+}
+
+.comment .invisible {
+  display: none;
+}
+
+.comment .ellipsis::after {
+  content: "…";
+}

www/assets/css/theme.css

@@ -377,4 +377,4 @@ code { /* character, digrams, trigrams */
   header + nav li:has(.active) a.active {
     color: var(--fg-banner);
   }
-}
+}

www/content/articles/bienvenue.md

@@ -3,6 +3,10 @@ title = "Bienvenue chez les Ergonautes !"
 date = 2024-03-18T22:01:23+01:00
 author = "nuclear_squid"
 tags = ["communauté"]
+[comments]
+  host = "mastodon.social"
+  username = "fabi1cazenave"
+  id = 112124416010685631
 +++
 
 Après plus de quatre ans de travail et avec une version 1.0 en approche, il

www/layouts/_default/single.html

@@ -14,4 +14,8 @@
     </p>
   {{- end -}}
 
+  {{ with .Params.comments }}
+    {{ partial "comments.html" . }}
+  {{ end }}
+
 {{ end }}

www/layouts/partials/comments.html

@@ -0,0 +1,193 @@
+{{- with resources.Get "css/comments.css" }}
+  {{- if eq hugo.Environment "development" }}
+    <link rel="stylesheet" href="{{ .RelPermalink }}">
+  {{- else }}
+    {{- with . | minify | fingerprint }}
+      <link rel="stylesheet" href="{{ .RelPermalink }}" integrity="{{ .Data.Integrity }}" crossorigin="anonymous">
+    {{- end }}
+  {{- end }}
+{{- end }}
+
+{{- with resources.Get "js/purify.min.js" }}
+  {{- if eq hugo.Environment "development" }}
+    <script src="{{ relURL .RelPermalink }}" type="text/javascript"></script>
+  {{- else }}
+    {{- with . | minify | fingerprint }}
+      <script src="{{ relURL .RelPermalink }}" integrity="{{- .Data.Integrity }}" crossorigin="anonymous" type="text/javascript"></script>
+    {{- end }}
+  {{- end }}
+{{- end }}
+
+<section id="comments" class="article-content">
+  <h2>Commentaires</h2>
+  <p>Avec un compte sur le Fediverse ou Mastodon, vous pouvez répondre à ce <a
+      href="https://{{ .host }}/@{{ .username }}/{{ .id }}">post</a>. Mastodon étant décentralisé, vous pouvez utiliser
+    votre compte existant hébergé sur un autre serveur Mastodon ou une plateforme compatible si vous n'avez pas de
+    compte sur celui-ci.</p>
+
+  <p id="mastodon-comments-list"><button id="load-comment">Charger les commentaires</button></p>
+  <div id="comments-wrapper">
+    <noscript>
+      <p>Charger les commentaires nécessite JavaScript. Essayez d'activer Javascript et rechargez la page, ou visitez <a
+          href="https://{{ .host }}/@{{ .username }}/{{ .id }}">le post original</a> sur Mastodon.</p>
+    </noscript>
+  </div>
+  <noscript>Vous devez activer Javascript pour voir les commentaires.</noscript>
+  <script type="text/javascript">
+    function escapeHtml(unsafe) {
+      return unsafe
+        .replace(/&/g, "&amp;")
+        .replace(/</g, "&lt;")
+        .replace(/>/g, "&gt;")
+        .replace(/"/g, "&quot;")
+        .replace(/'/g, "&#039;");
+    }
+    function emojify(input, emojis) {
+      let output = input;
+
+      emojis.forEach(emoji => {
+        let picture = document.createElement("picture");
+
+        let source = document.createElement("source");
+        source.setAttribute("srcset", escapeHtml(emoji.url));
+        source.setAttribute("media", "(prefers-reduced-motion: no-preference)");
+
+        let img = document.createElement("img");
+        img.className = "emoji";
+        img.setAttribute("src", escapeHtml(emoji.static_url));
+        img.setAttribute("alt", `:${emoji.shortcode}:`);
+        img.setAttribute("title", `:${emoji.shortcode}:`);
+        img.setAttribute("width", "20");
+        img.setAttribute("height", "20");
+
+        picture.appendChild(source);
+        picture.appendChild(img);
+
+        output = output.replace(`:${emoji.shortcode}:`, picture.outerHTML);
+      });
+
+      return output;
+    }
+
+    function loadComments() {
+      let commentsWrapper = document.getElementById("comments-wrapper");
+      document.getElementById("load-comment").innerHTML = "Chargement";
+      fetch('https://{{ .host }}/api/v1/statuses/{{ .id }}/context')
+        .then(function (response) {
+          return response.json();
+        })
+        .then(function (data) {
+          let descendants = data['descendants'];
+          if (
+            descendants &&
+            Array.isArray(descendants) &&
+            descendants.length > 0
+          ) {
+            commentsWrapper.innerHTML = "";
+
+            descendants.forEach(function (status) {
+              if (status.account.display_name.length > 0) {
+                status.account.display_name = escapeHtml(status.account.display_name);
+                status.account.display_name = emojify(status.account.display_name, status.account.emojis);
+              } else {
+                status.account.display_name = status.account.username;
+              };
+
+              let instance = "";
+              if (status.account.acct.includes("@")) {
+                instance = status.account.acct.split("@")[1];
+              } else {
+                instance = "{{ .host }}";
+              }
+
+              const isReply = status.in_reply_to_id !== "{{ .id }}";
+
+              status.content = emojify(status.content, status.emojis);
+
+              let avatarSource = document.createElement("source");
+              avatarSource.setAttribute("srcset", escapeHtml(status.account.avatar));
+              avatarSource.setAttribute("media", "(prefers-reduced-motion: no-preference)");
+
+              let avatarImg = document.createElement("img");
+              avatarImg.className = "avatar";
+              avatarImg.setAttribute("src", escapeHtml(status.account.avatar_static));
+              avatarImg.setAttribute("alt", `@${status.account.username}@${instance} avatar`);
+
+              let avatarPicture = document.createElement("picture");
+              avatarPicture.appendChild(avatarSource);
+              avatarPicture.appendChild(avatarImg);
+
+              let avatar = document.createElement("a");
+              avatar.className = "avatar-link";
+              avatar.setAttribute("href", status.account.url);
+              avatar.setAttribute("rel", "external nofollow");
+              avatar.setAttribute("title", `Voir le profil sur @${status.account.username}@${instance}`);
+              avatar.appendChild(avatarPicture);
+
+              let instanceBadge = document.createElement("a");
+              instanceBadge.className = "instance";
+              instanceBadge.setAttribute("href", status.account.url);
+              instanceBadge.setAttribute("title", `@${status.account.username}@${instance}`);
+              instanceBadge.setAttribute("rel", "external nofollow");
+              instanceBadge.textContent = instance;
+
+              let display = document.createElement("span");
+              display.className = "display";
+              display.setAttribute("itemprop", "author");
+              display.setAttribute("itemtype", "http://schema.org/Person");
+              display.innerHTML = status.account.display_name;
+
+              let header = document.createElement("header");
+              header.className = "author";
+              header.appendChild(display);
+              header.appendChild(instanceBadge);
+
+              let permalink = document.createElement("a");
+              permalink.setAttribute("href", status.url);
+              permalink.setAttribute("itemprop", "url");
+              permalink.setAttribute("title", `Voir le commentaire sur ${instance}`);
+              permalink.setAttribute("rel", "external nofollow");
+              permalink.textContent = new Date(status.created_at).toLocaleString('fr-FR', {
+                dateStyle: "long",
+                timeStyle: "short",
+              });
+
+              let timestamp = document.createElement("time");
+              timestamp.setAttribute("datetime", status.created_at);
+              timestamp.appendChild(permalink);
+
+              let main = document.createElement("main");
+              main.setAttribute("itemprop", "text");
+              main.innerHTML = status.content;
+
+              let interactions = document.createElement("footer");
+              if (status.favourites_count > 0) {
+                let faves = document.createElement("a");
+                faves.className = "faves";
+                faves.setAttribute("href", `${status.url}/favourites`);
+                faves.setAttribute("title", `Favoris depuis ${instance}`);
+                faves.textContent = status.favourites_count;
+
+                interactions.appendChild(faves);
+              }
+
+              let comment = document.createElement("article");
+              comment.id = `comment-${status.id}`;
+              comment.className = isReply ? "comment comment-reply" : "comment";
+              comment.setAttribute("itemprop", "comment");
+              comment.setAttribute("itemtype", "http://schema.org/Comment");
+              comment.appendChild(avatar);
+              comment.appendChild(header);
+              comment.appendChild(timestamp);
+              comment.appendChild(main);
+              comment.appendChild(interactions);
+
+              commentsWrapper.innerHTML += DOMPurify.sanitize(comment.outerHTML);
+            });
+          }
+          document.getElementById("load-comment").innerHTML = "Charger les commentaires";
+        });
+    }
+    document.getElementById("load-comment").addEventListener("click", loadComments);
+  </script>
+</section>