refactor: add utility functions

lib/functions.ts

@@ -0,0 +1,51 @@
+import { readFileSync } from "fs";
+import { resolve } from "path";
+// import chardet from "chardet";
+// import iconv from "iconv-lite";
+import { GridFSBucketReadStream } from "mongodb";
+import { stripHtml } from "string-strip-html";
+import { IStory } from "~/models/stories";
+import { ficsHidden } from "./server/ficmas";
+
+// const { encode, decode } = iconv;
+
+export function countWords(string: string) {
+	return stripHtml(string).result.split(/W+/).length;
+}
+
+export function populate(field: string) {
+	return function (next: () => any) {
+		this.populate(field);
+		next();
+	};
+}
+export function populateSelected(field: string, selection: string) {
+	return function (next: () => any) {
+		this.populate(field, selection);
+		next();
+	};
+}
+
+export function isFicmasHidden(story: IStory): boolean {
+	return (
+		(story.ficmas.year == new Date().getFullYear() &&
+			story.ficmas.anniversary &&
+			new Date() < new Date(Date.parse("Aug 1 " + new Date().getFullYear()))) ||
+		(story.ficmas.year == new Date().getFullYear() &&
+			!story.ficmas.anniversary &&
+			ficsHidden(Date.now()))
+	);
+}
+
+export function stringifyStream(
+	stream: GridFSBucketReadStream,
+): Promise<string> {
+	let chunks: Buffer[] = [];
+	return new Promise((res, rej) => {
+		stream.on("data", (c) => chunks.push(Buffer.from(c)));
+		stream.on("error", (err) => {
+			rej(err);
+		});
+		stream.on("end", () => res(Buffer.concat(chunks).toString("utf-8")));
+	});
+}