172 lines
4.3 KiB
TypeScript
172 lines
4.3 KiB
TypeScript
import "./Zap.css";
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import { useMemo } from "react";
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import { FormattedMessage } from "react-intl";
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import { useSelector } from "react-redux";
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// @ts-expect-error No types available
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import { decode as invoiceDecode } from "light-bolt11-decoder";
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import { bytesToHex } from "@noble/hashes/utils";
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import { sha256, unwrap } from "Util";
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//import { sha256 } from "Util";
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import { formatShort } from "Number";
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import { HexKey, TaggedRawEvent } from "Nostr";
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import Event from "Nostr/Event";
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import Text from "Element/Text";
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import ProfileImage from "Element/ProfileImage";
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import { RootState } from "State/Store";
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import messages from "./messages";
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function findTag(e: TaggedRawEvent, tag: string) {
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const maybeTag = e.tags.find((evTag) => {
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return evTag[0] === tag;
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});
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return maybeTag && maybeTag[1];
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}
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interface Section {
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name: string;
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}
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function getInvoice(zap: TaggedRawEvent) {
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const bolt11 = findTag(zap, "bolt11");
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const decoded = invoiceDecode(bolt11);
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const amount = decoded.sections.find(
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(section: Section) => section.name === "amount"
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)?.value;
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const hash = decoded.sections.find(
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(section: Section) => section.name === "description_hash"
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)?.value;
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return { amount, hash: hash ? bytesToHex(hash) : undefined };
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}
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interface Zapper {
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pubkey?: HexKey;
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isValid: boolean;
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}
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function getZapper(zap: TaggedRawEvent, dhash: string): Zapper {
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const zapRequest = findTag(zap, "description");
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if (zapRequest) {
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const rawEvent: TaggedRawEvent = JSON.parse(zapRequest);
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if (Array.isArray(rawEvent)) {
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// old format, ignored
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return { isValid: false };
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}
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const metaHash = sha256(zapRequest);
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const ev = new Event(rawEvent);
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return { pubkey: ev.PubKey, isValid: dhash === metaHash };
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}
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return { isValid: false };
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}
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export interface ParsedZap {
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id: HexKey;
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e?: HexKey;
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p: HexKey;
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amount: number;
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content: string;
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zapper?: HexKey;
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valid: boolean;
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}
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export function parseZap(zap: TaggedRawEvent): ParsedZap {
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const { amount, hash } = getInvoice(zap);
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const zapper = hash ? getZapper(zap, hash) : { isValid: false };
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const e = findTag(zap, "e");
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const p = unwrap(findTag(zap, "p"));
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return {
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id: zap.id,
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e,
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p,
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amount: Number(amount) / 1000,
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zapper: zapper.pubkey,
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content: zap.content,
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valid: zapper.isValid,
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};
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}
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const Zap = ({
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zap,
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showZapped = true,
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}: {
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zap: ParsedZap;
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showZapped?: boolean;
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}) => {
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const { amount, content, zapper, valid, p } = zap;
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const pubKey = useSelector((s: RootState) => s.login.publicKey);
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return valid && zapper ? (
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<div className="zap note card">
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<div className="header">
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<ProfileImage pubkey={zapper} />
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{p !== pubKey && showZapped && <ProfileImage pubkey={p} />}
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<div className="amount">
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<span className="amount-number">
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<FormattedMessage
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{...messages.Sats}
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values={{ n: formatShort(amount) }}
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/>
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</span>
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</div>
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</div>
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{content.length > 0 && zapper && (
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<div className="body">
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<Text
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creator={zapper}
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content={content}
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tags={[]}
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users={new Map()}
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/>
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</div>
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)}
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</div>
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) : null;
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};
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interface ZapsSummaryProps {
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zaps: ParsedZap[];
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}
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export const ZapsSummary = ({ zaps }: ZapsSummaryProps) => {
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const sortedZaps = useMemo(() => {
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const pub = [...zaps.filter((z) => z.zapper && z.valid)];
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const priv = [...zaps.filter((z) => !z.zapper && z.valid)];
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pub.sort((a, b) => b.amount - a.amount);
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return pub.concat(priv);
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}, [zaps]);
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if (zaps.length === 0) {
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return null;
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}
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const [topZap, ...restZaps] = sortedZaps;
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const { zapper, amount } = topZap;
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return (
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<div className="zaps-summary">
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{amount && (
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<div className={`top-zap`}>
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<div className="summary">
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{zapper && <ProfileImage pubkey={zapper} />}
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{restZaps.length > 0 && (
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<FormattedMessage
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{...messages.Others}
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values={{ n: restZaps.length }}
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/>
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)}{" "}
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<FormattedMessage
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{...messages.OthersZapped}
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values={{ n: restZaps.length }}
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/>
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</div>
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</div>
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)}
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</div>
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);
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};
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export default Zap;
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