100 lines
3.0 KiB
TypeScript
100 lines
3.0 KiB
TypeScript
import { useEffect, useMemo, useState } from "react";
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import { u256, EventKind, NostrLink, FlatNoteStore, RequestBuilder, NostrPrefix } from "@snort/system";
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import { useRequestBuilder } from "@snort/system-react";
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import { appendDedupe } from "SnortUtils";
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import useLogin from "Hooks/useLogin";
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import { System } from "index";
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interface RelayTaggedEventId {
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id: u256;
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relay?: string;
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}
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export default function useThreadFeed(link: NostrLink) {
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const [trackingEvents, setTrackingEvent] = useState<Array<RelayTaggedEventId>>([]);
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const [trackingATags, setTrackingATags] = useState<string[]>([]);
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const [allEvents, setAllEvents] = useState<Array<RelayTaggedEventId>>([]);
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const pref = useLogin().preferences;
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const sub = useMemo(() => {
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const sub = new RequestBuilder(`thread:${link.id.substring(0, 8)}`);
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sub.withOptions({
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leaveOpen: true,
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});
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if (trackingEvents.length > 0) {
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const fTracking = sub.withFilter();
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for (const te of trackingEvents) {
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fTracking.id(te.id, te.relay);
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}
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}
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if (allEvents.length > 0) {
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sub
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.withFilter()
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.kinds(
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pref.enableReactions
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? [EventKind.Reaction, EventKind.TextNote, EventKind.Repost, EventKind.ZapReceipt]
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: [EventKind.TextNote, EventKind.ZapReceipt, EventKind.Repost]
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)
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.tag(
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"e",
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allEvents.map(a => a.id)
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);
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}
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if (trackingATags.length > 0) {
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const parsed = trackingATags.map(a => a.split(":"));
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sub
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.withFilter()
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.kinds(parsed.map(a => Number(a[0])))
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.authors(parsed.map(a => a[1]))
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.tag(
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"d",
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parsed.map(a => a[2])
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);
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sub.withFilter().tag("a", trackingATags);
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}
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return sub;
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}, [trackingEvents, trackingATags, allEvents, pref]);
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const store = useRequestBuilder<FlatNoteStore>(System, FlatNoteStore, sub);
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useEffect(() => {
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if (link.type === NostrPrefix.Address) {
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setTrackingATags([`${link.kind}:${link.author}:${link.id}`]);
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} else {
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const lnk = {
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id: link.id,
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relay: link.relays?.[0],
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};
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setTrackingEvent([lnk]);
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setAllEvents([lnk]);
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}
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}, [link.id]);
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useEffect(() => {
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if (store.data) {
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const mainNotes = store.data?.filter(a => a.kind === EventKind.TextNote || a.kind === EventKind.Polls) ?? [];
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const eTags = mainNotes
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.map(a =>
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a.tags
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.filter(b => b[0] === "e")
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.map(b => {
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return {
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id: b[1],
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relay: b[2],
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};
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})
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)
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.flat();
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const eTagsMissing = eTags.filter(a => !mainNotes.some(b => b.id === a.id));
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setTrackingEvent(s => appendDedupe(s, eTagsMissing));
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setAllEvents(s => appendDedupe(s, eTags));
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const aTags = mainNotes.map(a => a.tags.filter(b => b[0] === "a").map(b => b[1])).flat();
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setTrackingATags(s => appendDedupe(s, aTags));
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}
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}, [store]);
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return store;
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}
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