266 lines
8.5 KiB
JavaScript
266 lines
8.5 KiB
JavaScript
const URL_MATCHING_REGEX =
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/(?:(?<protocol>[a-zA-Z]+):\/\/)?(?:(?<auth>(?<username>\S.+)\:(?<password>.+))\@)?(?<host>(?:(?<hostname>[-a-zA-Z0-9\.]+)\.)?(?<domain>[-a-zA-Z0-9]+?\.(?<tld>[-a-zA-Z0-9]{2,64}))(?:\:(?<port>[0-9]{1,6}))?)\b(?<path>[-a-zA-Z0-9@:%_{}\[\]<>\(\)\+.~&\/="]*)(?:\?(?<query>[a-zA-Z0-9!$%&<>()*+,-\.\/\:\;\=\?\@_~"]+))?(?:#(?<hash>[a-zA-Z0-9!$&'()*+,-\.\/\:\;\=\?\@_~"]*?))?/gm;
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const URL_MATCH_HANDLERS = [
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(match) => {
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// console.dir(match);
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return;
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},
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// url
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(match) => {
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// TODO: punycoding if something has unicode?
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// const punycode = get_punycode();
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// const punycoded_url = punycode.encode(match[0]);
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const groups = match.groups ?? {};
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return `<a href="${groups.protocol ?? "http"}://${groups.host ?? ""}${groups.path ? `/${groups.path}` : ""}${groups.query ? `?${groups.query}` : ""}${groups.hash ? `#${groups.hash}` : ""}">${match[0]}</a>`;
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},
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];
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function message_text_to_html(input) {
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let html_message = input;
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let match;
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while ((match = URL_MATCHING_REGEX.exec(input)) !== null) {
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for (const handler of URL_MATCH_HANDLERS) {
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const result = handler(match);
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if (typeof result === "string") {
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html_message = html_message.replace(match[0], result);
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}
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}
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}
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return html_message;
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}
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const time_tick_tock_timeout = 60 * 1000; // 1 minute
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let last_event_datetime_value = 0;
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let time_tick_tock_class = "time-tock";
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let last_creator_id = null;
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let user_tick_tock_class = "user-tock";
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function render_text_event(room_chat_content, event, creator, existing_element) {
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const event_datetime = datetime_to_local(event.timestamps.created);
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if (event_datetime.value - last_event_datetime_value > time_tick_tock_timeout) {
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time_tick_tock_class = time_tick_tock_class === "time-tick" ? "time-tock" : "time-tick";
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}
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last_event_datetime_value = event_datetime.value;
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if (last_creator_id !== creator.id) {
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user_tick_tock_class = user_tick_tock_class === "user-tick" ? "user-tock" : "user-tick";
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last_creator_id = creator.id;
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}
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const html_content = `<div id="chat-${event.id}" class="message-container ${user_tick_tock_class} ${time_tick_tock_class}" data-creator_id="${creator.id}">
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<div class="info-container">
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<div class="avatar-container">
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<img src="${creator.meta?.avatar ?? "/images/default_avatar.gif"}" alt="user avatar" />
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</div>
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<div class="username-container">
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<span class="username">${creator.username ?? "unknown"}</span>
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</div>
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<div class="datetime-container">
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<span class="long">${event_datetime.long}</span>
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<span class="short">${event_datetime.short}</span>
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</div>
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</div>
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<div class="message-content-container">${message_text_to_html(event.data.message)}</div>
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</div>`;
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if (existing_element) {
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const template = document.createElement("template");
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template.innerHTML = html_content;
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existing_element.replaceWith(template.content.firstChild);
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} else {
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room_chat_content.insertAdjacentHTML("beforeend", html_content);
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}
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}
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async function get_new_room_element() {
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const existing_new_room_element = document.getElementById("new-room");
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if (existing_new_room_element) {
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return existing_new_room_element;
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}
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const room_list = document.getElementById("room-list");
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room_list.insertAdjacentHTML(
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"beforeend",
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`<li id="new-room" class="room"><a href="" contenteditable="true">new room</a></li>`,
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);
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await new Promise((resolve) => setTimeout(resolve, 1));
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const new_room_element = document.getElementById("new-room");
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return new_room_element;
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}
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const users = {};
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async function append_room_events(events) {
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const room_chat_content = document.getElementById("room-chat-content");
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let last_message_id = room_chat_content.dataset.last_message_id ?? "";
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for (const event of events) {
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// if the last message is undefined, it becomes this event, otherwise, if this event's id is newer,
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// it becomes the latest message
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last_message_id =
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event.id > last_message_id && event.id.indexOf("TEMP") !== 0
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? event.id
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: last_message_id;
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// if the last message has been updated, update the content's dataset to reflect that
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if (last_message_id !== room_chat_content.dataset.last_message_id) {
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room_chat_content.dataset.last_message_id = last_message_id;
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}
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users[event.creator_id] =
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users[event.creator_id] ??
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(await (await api.fetch(`/api/users/${event.creator_id}`)).json());
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const existing_element =
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document.getElementById(`chat-${event.id}`) ??
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(event.meta?.temp_id
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? document.getElementById(`chat-${event.meta.temp_id}`)
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: undefined);
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render_text_event(room_chat_content, event, users[event.creator_id], existing_element);
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}
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room_chat_content.scrollTop = room_chat_content.scrollHeight;
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}
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// TODO: we need some abortcontroller handling here or something
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// similar for when we change rooms, this is the most basic
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// first pass outline
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let room_polling_request_abort_controller = null;
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async function poll_for_new_events() {
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const room_chat_content = document.getElementById("room-chat-content");
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const room_id = room_chat_content.dataset.room_id;
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const last_message_id = room_chat_content.dataset.last_message_id;
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if (!room_id) {
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return;
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}
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const message_polling_url = `/api/rooms/${room_id}/events?type=chat&limit=100&sort=newest&wait=true${last_message_id ? `&after_id=${last_message_id}` : ""}`;
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room_polling_request_abort_controller =
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room_polling_request_abort_controller || new AbortController();
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api.fetch(message_polling_url, {
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signal: room_polling_request_abort_controller.signal,
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})
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.then(async (new_events_response) => {
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const new_events = (await new_events_response.json()).reverse();
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await append_room_events(new_events.toReversed());
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poll_for_new_events(room_id);
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})
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.catch((error) => {
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// TODO: poll again? back off?
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console.error(error);
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});
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}
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async function load_room(room_id) {
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const room_chat_content = document.getElementById("room-chat-content");
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if (room_polling_request_abort_controller) {
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room_polling_request_abort_controller.abort();
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room_polling_request_abort_controller = null;
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delete room_chat_content.dataset.last_message_id;
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}
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const room_response = await api.fetch(`/api/rooms/${room_id}`);
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if (!room_response.ok) {
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const error = await room_response.json();
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alert(error.message ?? JSON.stringify(error));
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return;
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}
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const room = await room_response.json();
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room_chat_content.dataset.room_id = room.id;
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room_chat_content.innerHTML = "";
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const room_selectors = document.querySelectorAll("li.room");
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for (const room_selector of room_selectors) {
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room_selector.classList.remove("active");
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if (room_selector.id === `room-selector-${room_id}`) {
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room_selector.classList.add("active");
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}
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}
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const events_response = await api.fetch(
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`/api/rooms/${room_id}/events?type=chat&limit=100&sort=newest`,
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);
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if (!events_response.ok) {
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const error = await events_response.json();
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alert(error.message ?? JSON.stringify(error));
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return;
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}
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const events = (await events_response.json()).reverse();
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await append_room_events(events);
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poll_for_new_events(room_id);
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}
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let last_room_update = undefined;
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async function update_chat_rooms() {
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const now = new Date();
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const time_since_last_update = now - (last_room_update ?? 0);
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if (time_since_last_update < 5_000) {
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return;
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}
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const rooms_response = await api.fetch("/api/rooms");
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if (rooms_response.ok) {
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const room_list = document.getElementById("room-list");
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room_list.innerHTML = "";
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const rooms = await rooms_response.json();
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for (const room of rooms) {
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room_list.insertAdjacentHTML(
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"beforeend",
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`<li id="room-selector-${room.id}" class="room"><a href="#/talk/room/${room.id}">${room.name}</a></li>`,
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);
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}
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last_room_update = now;
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}
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}
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window.addEventListener("locationchange", update_chat_rooms);
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function check_for_room_in_url() {
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const user_json = document.body.dataset.user;
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if (!user_json) {
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return;
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}
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const hash = window.location.hash;
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const talk_in_url = hash.indexOf("#/talk") === 0;
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if (!talk_in_url) {
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return;
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}
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const first_room_id = document.querySelector("li.room")?.id.substring(14);
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// #/talk/room/{room_id}
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// ^ 12
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const room_id = hash.substring(12) || first_room_id;
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if (!room_id) {
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setTimeout(check_for_room_in_url, 100);
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return;
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}
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const room_chat_container = document.getElementById("room-chat-container");
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if (room_chat_container.dataset.room_id !== room_id) {
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window.location.hash = `/talk/room/${room_id}`;
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room_chat_container.dataset.room_id = room_id;
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load_room(room_id);
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}
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}
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window.addEventListener("locationchange", check_for_room_in_url);
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document.addEventListener("DOMContentLoaded", async () => {
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await update_chat_rooms();
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check_for_room_in_url();
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});
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