autonomous.contact/public/tabs/chat/chat.html

<div id="chat" class="tab">
	<input
		type="radio"
		name="top-level-tabs"
		id="chat-tab-input"
		class="tab-switch"
		data-view="chat"
	/>
	<label for="chat-tab-input" class="tab-label"
		><div class="icon chat"></div>
		<div class="label">Chat</div>
	</label>
	<div class="tab-content">
		<style>
			<!-- #include file="./chat.css" -->
		</style>
		<script src="/js/external/mimetypes.js" type="text/javascript"></script>
		<script src="/js/external/punycode.js" type="text/javascript"></script>

		<div id="chat-container">
			<div
				id="chat-content"
				data-feed
				data-precheck="!!document.body.dataset.user && document.body.dataset.user.indexOf( 'topics.chat.read' ) !== -1"
				data-source="/api/topics/${ document.body.dataset.topic }/events?type=chat,reaction&limit=100&sort=newest&wait=true&after_id=${ feed.__newest_id ?? 'able-able-able-able-able-able-able-able-able-able' }"
				data-longpolling="true"
				data-reverse="true"
				data-insert="append"
				data-autoscroll="true"
			>
				<script>
					{
						const feed = document.currentScript.closest("[data-feed]");

						APP.on("topic_changed", () => {	feed.__reset && feed.__reset(); });
						APP.on("user_logged_in", () => { feed.__reset && feed.__reset(); });

						const time_tick_tock_timeout = 60_000;

						let last_event_datetime_value = 0;
						let time_tick_tock_class = "time-tock";

						let last_creator_id = "";
						let user_tick_tock_class = "user-tock";

						feed.__context = async (item) => {
							const event_datetime = datetime_to_local(item.timestamps.created);

							if (
								event_datetime.value - last_event_datetime_value >
								time_tick_tock_timeout
							) {
								time_tick_tock_class =
									time_tick_tock_class === "time-tick"
										? "time-tock"
										: "time-tick";
							}
							last_event_datetime_value = event_datetime.value;

							if (last_creator_id !== item.creator_id) {
								user_tick_tock_class =
									user_tick_tock_class === "user-tick"
										? "user-tock"
										: "user-tick";
								last_creator_id = item.creator_id;
							}

							return {
								event: item,
								creator: await APP.USERS.get(item.creator_id),
								event_datetime,
								time_tick_tock_class,
								user_tick_tock_class,
							};
						};

						feed.__target_element = (item) => {
							let target = feed;
							switch (item.type) {
								case "reaction":
									target = document.querySelector(
										`.message-container[data-event_id='${item.parent_id}'] > .reactions-container`,
									);
									break;
								case "chat":
								default:
									target =
										document.querySelector(
											`.message-container[data-event_id='${item.parent_id}'] > .replies-container`,
										) ?? feed;
									break;
							}

							return target;
						};
					}
				</script>
				<template data-for_type="chat">
					<div
						id="${context.event.id}"
						class="message-container ${context.user_tick_tock_class} ${context.time_tick_tock_class}"
						data-event_id="${context.event.id}"
						data-creator_id="${context.creator.id}"
						data-temp_id="${context.event.meta?.temp_id ?? ''}"
					>
						<button class="icon more" commandfor="eventactionspopover"></button>
						<div class="info-container">
							<div class="avatar-container inline">
								<img
									src="${context.creator.meta?.avatar ?? '/images/default_avatar.gif'}"
									alt="user avatar"
								/>
							</div>
							<div class="username-container">
								<span class="username"
									>${context.creator.username ?? 'unknown'}</span
								>
							</div>
							<div class="datetime-container">
								<span class="long">${context.event_datetime.long}</span>
								<span class="short">${context.event_datetime.short}</span>
							</div>
						</div>
						<div class="message-content-container">
							${htmlify(md_to_html(context.event.data.content))}
						</div>
						<div class="message-media-container">
							${htmlify(context.event.data.media?.join("\n") ?? "")}
						</div>
						<div class="reactions-container"></div>
						<div class="replies-container"></div>
					</div>
				</template>
				<template data-for_type="reaction">
					<div
						id="${context.event.id}"
						class="reaction-container"
						data-event_id="${context.event.id}"
						data-creator_id="${context.creator.id}"
						data-temp_id="${context.event.meta?.temp_id ?? ''}"
					>
						<span class="reaction">${ context.event.data.reaction }</span>
					</div>
				</template>
			</div>
			<div id="chat-entry-container">
				<form
					id="chat-entry"
					data-smart="true"
					data-requires-permission="topics.chat.write"
					method="POST"
					class="post-creation-form collapsible"
					style="
						margin-top: 1rem
						width: 100%;
						transition: all 0.5s;
					"
					on_reply="async (event) => { await document.getElementById( 'chat-content' ).__render(event); document.getElementById(event.id)?.classList.remove('sending'); }"
					on_parsed="async (event) => { await document.getElementById( 'chat-content' ).__render(event); document.getElementById(event.id)?.classList.add('sending'); }"
				>
					<script>
						{
							const form = document.currentScript.closest("form");
							APP.on(	"topic_changed", ({ topic_id }) => {
								form.action = topic_id ? `/api/topics/${topic_id}/events` : "";
							});
						}
					</script>

					<input type="hidden" name="type" value="chat" />

					<input
						type="hidden"
						name="id"
						generator="(_input, form) => 'TEMP-' + form.__submitted_at.toISOString()"
						reset-on-submit
					/>
					<input
						type="hidden"
						name="meta.temp_id"
						generator="(_input, form) => 'TEMP-' + form.__submitted_at.toISOString()"
						reset-on-submit
					/>

					<input
						type="hidden"
						name="creator_id"
						generator="() => { return APP.user?.id; }"
					/>

					<input
						type="hidden"
						name="timestamps.created"
						generator="(_input, form) => form.__submitted_at.toISOString()"
						reset-on-submit
					/>
					<input
						type="hidden"
						name="timestamps.updated"
						generator="(_input, form) => form.__submitted_at.toISOString()"
						reset-on-submit
					/>

					<input type="hidden" name="parent_id" reset-on-submit />

					<label>
						<input
							aria-label="Upload and share file"
							type="file"
							multiple
							data-smartforms-save-to-home="true"
							name="data.media"
							reset-on-submit
						/>
						<div class="icon attachment"></div>
					</label>

					<textarea
						id="chat-input"
						class="chat-input"
						rows="1"
						name="data.content"
						reset-on-submit
						focus-on-submit
						enter-key-submits
					></textarea>

					<button id="chat-send" class="primary" aria-label="Send a message">
						<i class="icon send"></i>
					</button>
				</form>
			</div>
		</div>
	</div>
</div>