Files
lume/src/utils/parser.tsx
2023-06-28 17:23:36 +07:00

120 lines
2.7 KiB
TypeScript

import { MentionUser } from "@shared/notes/mentions/user";
import destr from "destr";
import getUrls from "get-urls";
import { parseReferences } from "nostr-tools";
import { ReactNode } from "react";
import { Link } from "react-router-dom";
import reactStringReplace from "react-string-replace";
function isJsonString(str: string) {
try {
JSON.parse(str);
} catch (e) {
return false;
}
return true;
}
export function parser(event: any) {
if (isJsonString(event.tags)) {
event["tags"] = destr(event.tags);
}
const references = parseReferences(event);
const urls = getUrls(event.content);
const content: {
original: string;
parsed: ReactNode[];
notes: string[];
images: string[];
videos: string[];
links: string[];
} = {
original: event.content,
parsed: event.content,
notes: [],
images: [],
videos: [],
links: [],
};
// remove unnecessary whitespaces
// @ts-ignore
content.parsed = content.parsed.replace(/\s{2,}/g, " ");
// remove unnecessary linebreak
// @ts-ignore
content.parsed = content.parsed.replace(/(\r\n|\r|\n){2,}/g, "$1\n");
// parse urls
urls?.forEach((url: string) => {
if (url.match(/\.(jpg|jpeg|gif|png|webp|avif)$/)) {
// image url
content.images.push(url);
// remove url from original content
content.parsed = reactStringReplace(content.parsed, url, () => null);
} else if (url.match(/\.(mp4|webm|mov|ogv|avi|mp3)$/)) {
// video
content.videos.push(url);
// remove url from original content
content.parsed = reactStringReplace(content.parsed, url, () => null);
} else {
if (content.links.length < 1) {
// push to store
content.links.push(url);
// remove url from original content
content.parsed = reactStringReplace(content.parsed, url, () => null);
} else {
content.parsed = reactStringReplace(
content.parsed,
/#(\w+)/g,
(match, i) => (
<Link
key={match + i}
to={match}
className="text-fuchsia-500 hover:text-fuchsia-600 no-underline font-normal"
>
{match}
</Link>
),
);
}
}
});
// parse nostr
references?.forEach((item) => {
const profile = item.profile;
const event = item.event;
if (event) {
content.notes.push(event.id);
content.parsed = reactStringReplace(
content.parsed,
item.text,
() => null,
);
}
if (profile) {
content.parsed = reactStringReplace(
content.parsed,
item.text,
(match, i) => <MentionUser key={match + i} pubkey={profile.pubkey} />,
);
}
});
// parse hashtag
content.parsed = reactStringReplace(content.parsed, /#(\w+)/g, (match, i) => (
<Link
key={match + i}
to={`/search/${match}`}
className="text-fuchsia-500 hover:text-fuchsia-600 no-underline font-normal"
>
#{match}
</Link>
));
return content;
}