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refactor: migrate chats to relay worker cache

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This commit is contained in:
Kieran
2024-01-23 22:16:43 +00:00
parent c968fa43a6
commit e9d9bf34d8
11 changed files with 56 additions and 153 deletions
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42
packages/app/src/chat/nip28.ts
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@ -1,4 +1,4 @@
import { ExternalStore, FeedCache, unwrap } from "@snort/shared";
import { unwrap } from "@snort/shared";
import {
decodeTLV,
encodeTLVEntries,
@ -11,15 +11,12 @@ import {
TLVEntryType,
UserMetadata,
} from "@snort/system";
import debug from "debug";
import { Chat, ChatParticipant, ChatSystem, ChatType, lastReadInChat } from "@/chat";
import { findTag } from "@/Utils";
import { LoginSession } from "@/Utils/Login";
export class Nip28ChatSystem extends ExternalStore<Array<Chat>> implements ChatSystem {
#cache: FeedCache<NostrEvent>;
#log = debug("NIP-28");
export class Nip28ChatSystem implements ChatSystem {
readonly ChannelKinds = [
EventKind.PublicChatChannel,
EventKind.PublicChatMessage,
@ -28,44 +25,26 @@ export class Nip28ChatSystem extends ExternalStore<Array<Chat>> implements ChatS
EventKind.PublicChatMuteUser,
];
constructor(cache: FeedCache<NostrEvent>) {
super();
this.#cache = cache;
}
subscription(session: LoginSession): RequestBuilder | undefined {
const chats = (session.extraChats ?? []).filter(a => a.startsWith("chat281"));
if (chats.length === 0) return;
const chatId = (v: string) => unwrap(decodeTLV(v).find(a => a.type === TLVEntryType.Special)).value as string;
const messages = this.#chatChannels();
const rb = new RequestBuilder(`nip28:${session.id}`);
rb.withFilter()
.ids(chats.map(v => chatId(v)))
.kinds([EventKind.PublicChatChannel, EventKind.PublicChatMetadata]);
for (const c of chats) {
const id = chatId(c);
const lastMessage = messages[id]?.reduce((acc, v) => (v.created_at > acc ? v.created_at : acc), 0) ?? 0;
rb.withFilter()
.tag("e", [id])
.since(lastMessage === 0 ? undefined : lastMessage)
.kinds(this.ChannelKinds);
rb.withFilter().tag("e", [id]).kinds(this.ChannelKinds);
}
return rb;
}
async onEvent(evs: readonly TaggedNostrEvent[]) {
const dms = evs.filter(a => this.ChannelKinds.includes(a.kind));
if (dms.length > 0) {
await this.#cache.bulkSet(dms);
this.notifyChange();
}
}
listChats(): Chat[] {
const chats = this.#chatChannels();
listChats(pk: string, evs: Array<TaggedNostrEvent>): Chat[] {
const chats = this.#chatChannels(evs);
const ret = Object.entries(chats).map(([k, v]) => {
return Nip28ChatSystem.createChatObj(Nip28ChatSystem.chatId(k), v);
});
@ -121,10 +100,6 @@ export class Nip28ChatSystem extends ExternalStore<Array<Chat>> implements ChatS
} as Chat;
}
takeSnapshot(): Chat[] {
return this.listChats();
}
static #chatProfileFromMessages(messages: Array<NostrEvent>) {
const chatDefs = messages.filter(
a => a.kind === EventKind.PublicChatChannel || a.kind === EventKind.PublicChatMetadata,
@ -136,9 +111,8 @@ export class Nip28ChatSystem extends ExternalStore<Array<Chat>> implements ChatS
return chatDef ? (JSON.parse(chatDef.content) as UserMetadata) : undefined;
}
#chatChannels() {
const messages = this.#cache.snapshot();
const chats = messages.reduce(
#chatChannels(evs: Array<TaggedNostrEvent>) {
const chats = evs.reduce(
(acc, v) => {
const k = this.#chatId(v);
if (k) {
@ -162,3 +136,5 @@ export class Nip28ChatSystem extends ExternalStore<Array<Chat>> implements ChatS
}
}
}
export const Nip28Chats = new Nip28ChatSystem();