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<script>
import { page } from '$app/stores';
import { goto } from '$app/navigation';
import { browser } from '$app/environment';
import { onMount, onDestroy, getContext } from 'svelte';
import TinyGesture from 'tinygesture';
import { boot, subscribeToEvents } from '$lib/apiServer';
import { currentUser, logins, channelsList, messages, onEvent } from '$lib/store';
import ChannelList from '$lib/components/ChannelList.svelte';
import CreateChannelForm from '$lib/components/CreateChannelForm.svelte';
let events = null;
let gesture = null;
let pageContext = getContext('page');
let { children } = $props();
let loading = $state(true);
let channel = $derived($page.params.channel);
let rawChannels = $derived($channelsList.channels);
let rawMessages = $derived($messages);
let enrichedChannels = $derived.by(() => {
const channels = rawChannels;
const messages = rawMessages;
const enrichedChannels = [];
if (channels && messages) {
for (let ch of channels) {
let runs = messages.inChannel(ch.id);
let lastRun = runs?.slice(-1)[0];
let lastMessage = lastRun?.messages.slice(-1)[0];
let lastMessageAt = lastMessage?.at;
let hasUnreads = lastMessageAt > ch.lastReadAt;
enrichedChannels.push({
...ch,
hasUnreads
});
}
}
return enrichedChannels;
});
function onBooted(boot) {
currentUser.set({
id: boot.login.id,
username: boot.login.name
});
logins.update((value) => value.setLogins(boot.logins));
channelsList.update((value) => value.setChannels(boot.channels));
messages.update((value) => value.setMessages(boot.messages));
}
function setUpGestures() {
if (!browser) {
// Meaningless if we're not in a browser, so...
return;
}
gesture = new TinyGesture(window);
gesture.on('swiperight', (event) => {
pageContext.showMenu = true;
});
gesture.on('swipeleft', (event) => {
pageContext.showMenu = false;
});
}
onMount(async () => {
let response = await boot();
switch (response.status) {
case 200:
onBooted(response.data);
events = subscribeToEvents(response.data.resume_point);
events.onmessage = onEvent.fromMessage;
break;
case 401:
currentUser.set(null);
goto('/login');
break;
case 503:
currentUser.set(null);
goto('/setup');
break;
default:
// TODO: display error.
break;
}
setUpGestures();
loading = false;
});
onDestroy(async () => {
if (events !== null) {
events.close();
}
if (gesture !== null) {
gesture.destroy();
}
});
function onbeforeunload(event) {
event.preventDefault();
if (events !== null) {
events.close();
}
// For some compat reasons?
event.returnValue = '';
return '';
}
</script>
<svelte:window {onbeforeunload} />
<svelte:head>
<!-- TODO: unread count? -->
<title>pilcrow</title>
</svelte:head>
{#if loading}
<h2>Loading…</h2>
{:else}
<div id="interface">
<nav id="sidebar" data-expanded={pageContext.showMenu}>
<ChannelList active={channel} channels={enrichedChannels} />
<div class="create-channel">
<CreateChannelForm />
</div>
</nav>
<main>
{@render children?.()}
</main>
</div>
{/if}
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