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Diffstat (limited to 'assets/mscomm/comments.js')
| -rw-r--r-- | assets/mscomm/comments.js | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/assets/mscomm/comments.js b/assets/mscomm/comments.js new file mode 100644 index 0000000..57b9793 --- /dev/null +++ b/assets/mscomm/comments.js @@ -0,0 +1,311 @@ +// © https://phosphoricons.com/ +export const icons = { + reblog: + `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 256 256" fill="none" stroke="currentColor" stroke-width="24"><polyline points="200 88 224 64 200 40"/><path d="M32,128A64,64,0,0,1,96,64H224"/><polyline points="56 168 32 192 56 216"/><path d="M224,128a64,64,0,0,1-64,64H32"/></svg>`, + favourite: + `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 256 256" fill="currentColor"><path d="M240,94c0,70-103.79,126.66-108.21,129a8,8,0,0,1-7.58,0C119.79,220.66,16,164,16,94A62.07,62.07,0,0,1,78,32c20.65,0,38.73,8.88,50,23.89C139.27,40.88,157.35,32,178,32A62.07,62.07,0,0,1,240,94Z"/></svg>`, + author: + `<svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" viewBox="0 0 256 256" fill="currentColor" class="comment-author"><path d="M128,24A104,104,0,1,0,232,128,104.11,104.11,0,0,0,128,24Zm45.66,85.66-56,56a8,8,0,0,1-11.32,0l-24-24a8,8,0,0,1,11.32-11.32L112,148.69l50.34-50.35a8,8,0,0,1,11.32,11.32Z"></path></svg>`, + + // @ https://simpleicons.org/ + mastodon: + `<svg role="img" width="16" height="16" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Mastodon</title><path d="M23.268 5.313c-.35-2.578-2.617-4.61-5.304-5.004C17.51.242 15.792 0 11.813 0h-.03c-3.98 0-4.835.242-5.288.309C3.882.692 1.496 2.518.917 5.127.64 6.412.61 7.837.661 9.143c.074 1.874.088 3.745.26 5.611.118 1.24.325 2.47.62 3.68.55 2.237 2.777 4.098 4.96 4.857 2.336.792 4.849.923 7.256.38.265-.061.527-.132.786-.213.585-.184 1.27-.39 1.774-.753a.057.057 0 0 0 .023-.043v-1.809a.052.052 0 0 0-.02-.041.053.053 0 0 0-.046-.01 20.282 20.282 0 0 1-4.709.545c-2.73 0-3.463-1.284-3.674-1.818a5.593 5.593 0 0 1-.319-1.433.053.053 0 0 1 .066-.054c1.517.363 3.072.546 4.632.546.376 0 .75 0 1.125-.01 1.57-.044 3.224-.124 4.768-.422.038-.008.077-.015.11-.024 2.435-.464 4.753-1.92 4.989-5.604.008-.145.03-1.52.03-1.67.002-.512.167-3.63-.024-5.545zm-3.748 9.195h-2.561V8.29c0-1.309-.55-1.976-1.67-1.976-1.23 0-1.846.79-1.846 2.35v3.403h-2.546V8.663c0-1.56-.617-2.35-1.848-2.35-1.112 0-1.668.668-1.67 1.977v6.218H4.822V8.102c0-1.31.337-2.35 1.011-3.12.696-.77 1.608-1.164 2.74-1.164 1.311 0 2.302.5 2.962 1.498l.638 1.06.638-1.06c.66-.999 1.65-1.498 2.96-1.498 1.13 0 2.043.395 2.74 1.164.675.77 1.012 1.81 1.012 3.12z"/></svg>`, + + pleroma: + `<svg role="img" width="16" height="16" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Pleroma</title><path d="M6.36 0A1.868 1.868 0 004.49 1.868V24h5.964V0zm7.113 0v12h4.168a1.868 1.868 0 001.868-1.868V0zm0 18.036V24h4.168a1.868 1.868 0 001.868-1.868v-4.096Z"/></svg>`, + + bluesky: + `<svg role="img" width="16" height="16" viewBox="0 0 24 24" xmlns="http://www.w3.org/2000/svg"><title>Bluesky</title><path d="M12 10.8c-1.087-2.114-4.046-6.053-6.798-7.995C2.566.944 1.561 1.266.902 1.565.139 1.908 0 3.08 0 3.768c0 .69.378 5.65.624 6.479.815 2.736 3.713 3.66 6.383 3.364.136-.02.275-.039.415-.056-.138.022-.276.04-.415.056-3.912.58-7.387 2.005-2.83 7.078 5.013 5.19 6.87-1.113 7.823-4.308.953 3.195 2.05 9.271 7.733 4.308 4.267-4.308 1.172-6.498-2.74-7.078a8.741 8.741 0 0 1-.415-.056c.14.017.279.036.415.056 2.67.297 5.568-.628 6.383-3.364.246-.828.624-5.79.624-6.478 0-.69-.139-1.861-.902-2.206-.659-.298-1.664-.62-4.3 1.24C16.046 4.748 13.087 8.687 12 10.8Z"/></svg>`, +}; + +export default class SocialComments extends HTMLElement { + comments = {}; + + async connectedCallback() { + const lang = this.closest("[lang]")?.lang || navigator.language || "en"; + + this.dateTimeFormatter = new Intl.DateTimeFormat(lang, { + dateStyle: "medium", + timeStyle: "short", + }); + + const mastodon = this.getAttribute("mastodon") || this.getAttribute("src"); + const bluesky = this.getAttribute("bluesky"); + + await Promise.all([ + mastodon && this.#fetchMastodon(new URL(mastodon)), + bluesky && this.#fetchBluesky(new URL(bluesky)), + ]); + + this.refresh(); + } + + refresh() { + const comments = [ + ...this.comments.mastodon || [], + ...this.comments.bluesky || [], + ].sort( + (a, b) => new Date(a.createdAt) - new Date(b.createdAt), + ); + + if (comments.length) { + this.innerHTML = ""; + this.render(this, comments); + } + } + + async #fetchBluesky(url) { + const { pathname } = url; + + const [, handle, rkey] = pathname.match( + /\/profile\/([\w\.]+)\/post\/(\w+)/, + ); + + if (!handle || !rkey) { + return; + } + + const options = { + ttl: Number(this.getAttribute("cache") || 0), + }; + + const didData = await fetchJSON( + `https://public.api.bsky.app/xrpc/com.atproto.identity.resolveHandle?handle=${handle}`, + options, + ); + const uri = `at://${didData.did}/app.bsky.feed.post/${rkey}`; + + this.comments.bluesky = dataFromBluesky( + await fetchJSON( + `https://public.api.bsky.app/xrpc/app.bsky.feed.getPostThread?uri=${uri}`, + options, + ), + ); + } + + async #fetchMastodon(url) { + const { origin, pathname } = url; + let id; + + const source = pathname.includes("/notice/") ? "pleroma" : "mastodon"; + + if (source === "pleroma") { + [, id] = pathname.match(/^\/notice\/([^\/?#]+)/); + } else { + [, id] = pathname.match(/\/(\d+)$/); + } + + if (!id) { + return; + } + + const token = this.getAttribute("token"); + const options = { + ttl: Number(this.getAttribute("cache") || 0), + }; + if (token) { + options.headers = { + Authorization: `Bearer ${token}`, + }; + } + + const user = url.pathname.split("/")[1]; + const author = `${user}@${url.hostname}`; + + const comments = dataFromMastodon( + await fetchJSON( + new URL(`${origin}/api/v1/statuses/${id}/context`), + options, + ), + author, + source, + ); + + this.comments.mastodon = comments.filter((comment) => + comment.parent === id + ); + } + + render(container, replies) { + const ul = document.createElement("ul"); + + for (const reply of replies) { + const comment = document.createElement("li"); + comment.innerHTML = this.renderComment(reply); + + if (reply.replies.length) { + this.render(comment, reply.replies); + } + ul.appendChild(comment); + } + + container.appendChild(ul); + } + + renderComment(comment) { + return ` + <article class="comment" id="comment-${comment.id}"> + <footer class="comment-footer"> + <a href="${comment.author.url}" class="comment-user"> + <img class="comment-avatar" src="${comment.author.avatar}" alt="${comment.author.alt}'s avatar" width="200" height="200"> + ${comment.isMine ? icons.author : ""} + <strong class="comment-username"> + ${comment.author.name} + </strong> + <em class="comment-useraddress">${comment.author.handler}</em> + </a> + <a href="${comment.url}" class="comment-address"> + <time class="comment-time" title="${comment.createdAt.toISOString()}"> + ${this.dateTimeFormatter.format(comment.createdAt)} + ${icons[comment.source]} + </time> + </a> + </footer> + <div class="comment-body"> + ${comment.content} + + <p class="comment-counts"> + ${ + comment.boosts ? `<span>${icons.reblog} ${comment.boosts}</span>` : "" + } + ${ + comment.likes ? `<span>${icons.favourite} ${comment.likes}</span>` : "" + } + </p> + </div> + </article> + `; + } +} + +function formatEmojis(html, emojis) { + emojis.forEach(({ shortcode, static_url, url }) => { + html = html.replace( + `:${shortcode}:`, + `<picture> + <source srcset="${url}" media="(prefers-reduced-motion: no-preference)"> + <img src="${static_url}" alt=":${shortcode}:" title=":${shortcode}:" width="16" height="16"> + </picture>`, + ); + }); + return html; +} + +async function fetchJSON(url, options = {}) { + const headers = new Headers(); + + if (options.headers) { + for (const [key, value] of Object.entries(options.headers)) { + headers.set(key, value); + } + } + + if (typeof caches === "undefined") { + return await (await fetch(url), { headers }).json(); + } + + const cache = await caches.open("mastodon-comments"); + let cached = await cache.match(url); + + if (cached && options.ttl) { + const cacheTime = new Date(cached.headers.get("x-cached-at")); + const diff = Date.now() - cacheTime.getTime(); + + if (diff <= options.ttl * 1000) { + return await cached.json(); + } + } + + try { + const response = await fetch(url, { headers }); + const body = await response.json(); + + cached = new Response(JSON.stringify(body)); + cached.headers.set("x-cached-at", new Date()); + cached.headers.set("content-type", "application/json; charset=utf-8"); + await cache.put(url, cached); + return body; + } catch { + if (cached) { + return await cached.json(); + } + } +} + +function dataFromMastodon(data, author, source) { + const comments = new Map(); + + // Transform data to a more usable format + for (const comment of data.descendants) { + if (comment.visibility !== "public") { + continue; + } + + const { account } = comment; + const handler = `@${account.username}@${new URL(account.url).hostname}`; + comments.set(comment.id, { + id: comment.id, + isMine: author === handler, + source, + url: comment.url, + parent: comment.in_reply_to_id, + createdAt: new Date(comment.created_at), + content: formatEmojis(comment.content, comment.emojis), + author: { + name: formatEmojis(account.display_name, account.emojis), + handler, + url: account.url, + avatar: account.avatar_static, + alt: account.display_name, + }, + boosts: comment.reblogs_count, + likes: comment.favourites_count, + replies: [], + }); + } + + // Group comments by parent + for (const comment of comments.values()) { + if (comment.parent && comments.has(comment.parent)) { + comments.get(comment.parent).replies.push(comment); + } + } + + return Array.from(comments.values()); +} + +function dataFromBluesky(data) { + const { thread } = data; + + return blueskyComments( + thread.post.author.did, + thread.post.cid, + thread.replies, + ); +} + +function blueskyComments(author, parent, comments) { + return comments.map((reply) => { + const { post, replies } = reply; + const rkey = post.uri.split("/").pop(); + return { + id: post.cid, + isMine: post.author.did === author, + source: "bluesky", + url: `https://bsky.app/profile/${post.author.handle}/post/${rkey}`, + parent, + createdAt: new Date(post.record.createdAt), + content: post.record.text, + author: { + name: post.author.displayName, + handler: post.author.handle, + url: `https://bsky.app/profile/${post.author.handle}`, + avatar: post.author.avatar, + alt: post.author.displayName, + }, + boosts: post.repostCount, + likes: post.likeCount, + replies: blueskyComments(author, post.cid, replies || []), + }; + }); +} |