First public commit

utils/api-utils.ts

@@ -0,0 +1,79 @@
+import { Link } from "@prisma/client";
+import * as Eta from "eta";
+import { readFileSync } from "fs";
+import { NextApiHandler, NextApiRequest, NextApiResponse } from "next";
+import path from "path";
+import { prisma } from "../db";
+import { sendEmail } from "./send-email";
+
+export const exclude = <O extends Record<string, any>, E extends keyof O>(
+  obj: O,
+  ...fieldsToExclude: E[]
+): Omit<O, E> => {
+  const newObj = { ...obj };
+  fieldsToExclude.forEach((field) => {
+    delete newObj[field];
+  });
+  return newObj;
+};
+
+export const getQueryParam = (req: NextApiRequest, queryKey: string) => {
+  const value = req.query[queryKey];
+  return typeof value === "string" ? value : value[0];
+};
+
+export const withLink = (
+  handler: (
+    req: NextApiRequest,
+    res: NextApiResponse,
+    link: Link,
+  ) => Promise<void>,
+): NextApiHandler => {
+  return async (req, res) => {
+    const urlId = getQueryParam(req, "urlId");
+    const link = await prisma.link.findUnique({ where: { urlId } });
+
+    if (!link) {
+      const message = `Could not find link with urlId: ${urlId}`;
+      return res.status(404).json({
+        status: 404,
+        message,
+      });
+    }
+
+    return await handler(req, res, link);
+  };
+};
+
+export const getAdminLink = (links: Link[]) =>
+  links.find((link) => link.role === "admin");
+
+interface SendEmailTemplateParams {
+  templateName: string;
+  to: string;
+  subject: string;
+  templateVars: Record<string, string | undefined>;
+}
+
+export const sendEmailTemplate = async ({
+  templateName,
+  templateVars,
+  to,
+  subject,
+}: SendEmailTemplateParams) => {
+  const template = readFileSync(
+    path.resolve(process.cwd(), `./templates/${templateName}.html`),
+  ).toString();
+
+  const rendered = await Eta.render(template, templateVars);
+
+  if (rendered) {
+    await sendEmail({
+      html: rendered,
+      to,
+      subject,
+    });
+  } else {
+    throw new Error(`Failed to render email template: ${templateName}`);
+  }
+};