315 lines
8.7 KiB
HTML
315 lines
8.7 KiB
HTML
<style>
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.forum-container {
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padding: 1rem;
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}
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.post-container {
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position: relative;
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display: grid;
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grid-template-rows: auto auto auto auto 1fr;
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grid-template-columns: auto auto 1fr;
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grid-template-areas:
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"expander preview info"
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"expander preview subject"
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". . content"
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". . newpost"
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". . replies";
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max-height: 6rem;
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padding: 1rem;
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border: 1px solid var(--border-subtle);
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overflow-y: hidden;
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transition: all ease-in-out 0.33s;
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margin-bottom: 2rem;
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}
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.post-container:has(> div > label > input[name="expanded"]:checked) {
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max-height: unset;
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}
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.expand-toggle-container input[name="expanded"] {
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display: none;
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visibility: hidden;
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opacity: 0;
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}
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.post-container:has(> div > label > input[name="expanded"]) .icon.minus,
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.post-container:has(> div > label > input[name="expanded"]:checked) .icon.plus {
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display: block;
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opacity: 1;
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visibility: visible;
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}
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.post-container:has(> div > label > input[name="expanded"]) .icon.plus,
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.post-container:has(> div > label > input[name="expanded"]:checked) .icon.minus {
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display: none;
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opacity: 0;
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visibility: hidden;
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}
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.post-container .expand-toggle-container {
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grid-area: expander;
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margin-right: 0.5rem;
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}
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.post-container .expand-toggle-container label {
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display: flex;
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align-items: center;
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width: 22px;
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height: 22px;
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}
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.post-container .media-preview-container {
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grid-area: preview;
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width: 6rem;
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height: 4rem;
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margin-right: 1rem;
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}
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.post-container .media-preview-container img {
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max-width: 100%;
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max-height: 100%;
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}
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.post-container .info-container {
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grid-area: info;
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display: flex;
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}
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.post-container .info-container .avatar-container {
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display: block;
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margin: 0.5rem;
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width: 3rem;
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height: 3rem;
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border-radius: 16%;
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overflow: hidden;
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}
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.post-container .info-container .avatar-container img {
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min-width: 100%;
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min-height: 100%;
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}
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.post-container .info-container .username-container {
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display: block;
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margin: 0 0.5rem;
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font-weight: bold;
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}
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.post-container .info-container .datetime-container {
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display: block;
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margin: 0 0.5rem;
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}
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.post-container .info-container .datetime-container .long {
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font-size: x-small;
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text-transform: uppercase;
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visibility: hidden;
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display: none;
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}
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.post-container .info-container .datetime-container .short {
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font-size: xx-small;
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}
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.post-container .subject-container {
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grid-area: subject;
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padding-left: 5rem;
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margin-top: -2.5rem;
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font-size: larger;
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font-weight: bold;
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}
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.post-container .content-container {
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grid-area: content;
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padding-left: 5rem;
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margin-top: 2rem;
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}
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.post-container .new-post-container {
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grid-area: newpost;
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}
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.post-container .replies-container {
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grid-area: replies;
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}
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</style>
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<div id="forum" class="tab">
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<input
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type="radio"
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name="top-level-tabs"
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id="forum-tab-input"
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class="tab-switch"
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data-view="forum"
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/>
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<label for="forum-tab-input" class="tab-label"
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><div class="icon forum"></div>
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<div class="label">Forum</div></label
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>
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<div class="tab-content forum-container">
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<!-- #include file="./README.md" -->
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<div id="forum-posts" class="container">
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<div id="forum-posts-list"></div>
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<script>
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const forum_posts_list = document.getElementById("forum-posts-list");
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async function render_post(post) {
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const creator = await USERS.get(post.creator_id);
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const existing_element =
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document.getElementById(`post-${post.id.substring(0, 49)}`) ??
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document.getElementById(`post-${post.meta?.temp_id}`);
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const post_datetime = datetime_to_local(post.timestamps.created);
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const html_content = `<div class="post-container" data-creator_id="${creator.id}" data-post_id="${post.id}">
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<div class="expand-toggle-container">
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<label>
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<input type="checkbox" name="expanded"/><i class="icon plus"></i><i class="icon minus"></i>
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</label>
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</div>
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<div class="media-preview-container">
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<img src="/images/placeholders/${String(post_datetime.ms % 10).padStart(2, "0")}.svg" />
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</div>
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<div class="info-container">
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<div class="avatar-container">
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<img src="${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">${creator.username}</span>
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</div>
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<div class="datetime-container">
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<span class="long">${post_datetime.long}</span>
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<span class="short">${post_datetime.short}</span>
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</div>
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</div>
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<div class="subject-container">${post.data.subject}</div>
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<div class="content-container">${htmlify(post.data.content)}</div>
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<!-- #include file="./new_post.html" -->
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<div class="replies-container"></div>
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</div>`;
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if (existing_element) {
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const template = document.createElement("template");
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template.innerHTML = html_content;
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existing_element.replaceWith(template.content.firstChild);
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existing_element.classList.remove("sending");
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} else {
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const target_container =
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document.querySelector(
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`.post-container[data-post_id='${post.parent_id}'] > .replies-container`,
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) ?? forum_posts_list;
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target_container.insertAdjacentHTML("beforeend", html_content);
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}
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}
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async function append_posts(posts) {
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let last_post_id = forum_posts_list.dataset.last_post_id ?? "";
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for await (const post of posts) {
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// if the last post is undefined, it becomes this event, otherwise, if this event's id is newer,
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// it becomes the latest post
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last_post_id =
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post.id > last_post_id && post.id.indexOf("TEMP") !== 0
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? post.id
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: last_post_id;
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// if the last post has been updated, update the content's dataset to reflect that
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if (last_post_id !== forum_posts_list.dataset.last_post_id) {
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forum_posts_list.dataset.last_post_id = last_post_id;
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}
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await render_post(post);
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}
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const new_post_forms = document.querySelectorAll(".post-creation-form");
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for (const new_post_form of new_post_forms) {
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new_post_form.action =
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"/api/topics/" + document.body.dataset?.topic + "/events";
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}
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forum_posts_list.scrollTop = 0;
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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 topics, this is the most basic
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// first pass outline
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let post_polling_abort_controller = null;
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async function poll_for_new_posts() {
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const forum_posts_list = document.getElementById("forum-posts-list");
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const topic_id = document.body.dataset.topic;
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const last_post_id = forum_posts_list.dataset.last_post_id;
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if (!topic_id) {
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return;
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}
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const message_polling_url = `/api/topics/${topic_id}/events?type=post&limit=100&sort=newest&wait=true${last_post_id ? `&after_id=${last_post_id}` : ""}`;
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post_polling_abort_controller =
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post_polling_abort_controller || new AbortController();
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api.fetch(message_polling_url, {
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signal: post_polling_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()) ?? [];
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await append_posts(new_events.reverse());
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poll_for_new_posts(topic_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_active_topic_for_forum() {
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const topic_id = document.body.dataset.topic;
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if (!topic_id) return;
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const user = document.body.dataset.user
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? JSON.parse(document.body.dataset.user)
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: null;
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if (!user) return;
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const forum_posts_list = document.getElementById("forum-posts-list");
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if (post_polling_abort_controller) {
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post_polling_abort_controller.abort();
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post_polling_abort_controller = null;
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delete forum_posts_list.dataset.last_post_id;
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}
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const topic_response = await api.fetch(`/api/topics/${topic_id}`);
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if (!topic_response.ok) {
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const error = await topic_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 topic = await topic_response.json();
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forum_posts_list.innerHTML = "";
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const events_response = await api.fetch(
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`/api/topics/${topic_id}/events?type=post&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();
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await append_posts(events.reverse());
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poll_for_new_posts();
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}
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document.addEventListener("topic_changed", load_active_topic_for_forum);
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document.addEventListener("user_logged_in", load_active_topic_for_forum);
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</script>
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</div>
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<!-- #include file="./new_post.html" -->
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</div>
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</div>
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