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import { DateTime } from 'luxon';
const EPOCH_STRING = '1970-01-01T00:00:00Z';
// For reasons unclear to me, a straight up class definition with a constructor
// doesn't seem to work, reactively. So we resort to this.
// Owen suggests that this sentence in the Svelte docs should make the reason
// clear:
// > If $state is used with an array or a simple object, the result is a deeply
// > reactive state proxy.
// Emphasis on "simple object".
// --Kit
function makeChannelObject({ id, name, draft = '', lastReadAt = null, scrollPosition = null }) {
return {
id,
name,
lastReadAt: lastReadAt || DateTime.fromISO(EPOCH_STRING),
draft,
scrollPosition
};
}
export class Channels {
channels = $state([]);
getChannel(channelId) {
return this.channels.filter((ch) => ch.id === channelId)[0] || null;
}
setChannels(channels) {
this.channels = channels.map(makeChannelObject);
this.sort();
return this;
}
addChannel(id, name) {
this.channels = [...this.channels, makeChannelObject({ id, name })];
this.sort();
return this;
}
deleteChannel(id) {
const channelIndex = this.channels.map((e) => e.id).indexOf(id);
if (channelIndex !== -1) {
this.channels.splice(channelIndex, 1);
}
return this;
}
sort() {
this.channels.sort((a, b) => {
if (a.name < b.name) {
return -1;
} else if (a.name > b.name) {
return 1;
}
return 0;
});
}
}
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