add basic implementation of file upload

src/pages/api/resources/photo/[id].tsx

@@ -1,24 +1,60 @@
 import { type NextApiHandler } from "next";
 import formidable from "formidable";
+import * as path from "path";
+import { prisma } from "~/server/db";
 
-const handler: NextApiHandler = (req, res) => {
+/**
+ * Returns filename for a given filepath.
+ * @param filepath
+ */
+function getFileName(filepath: string) {
+  return filepath.split("/").at(-1) ?? "";
+}
+
+const handler: NextApiHandler = async (req, res) => {
   if (req.method !== "POST") {
     res.status(404).end();
     return;
   }
 
   const { id } = req.query;
-  console.log(id);
+
+  if (Array.isArray(id) || !id) {
+    res.writeHead(400, "Invalid resource ID provided").end();
+    return;
+  }
 
   const form = formidable({
     uploadDir: "./public/resource_logos/uploads",
     keepExtensions: true,
   });
 
-  form.parse(req, (err, fields, files) => {
-    console.log(JSON.stringify(files));
+  const localUploadPath: Promise<string> = new Promise((resolve, reject) => {
+    form.parse(req, (_err, _fields, files) => {
+      const photo = Array.isArray(files.photo) ? files.photo[0] : files.photo;
+      if (!photo) {
+        reject("Invalid file type sent (or none provided)");
+        return;
+      }
+
+      resolve(path.join("uploads", getFileName(photo.filepath)));
+    });
   });
 
+  try {
+    await prisma.auditoryResource.update({
+      where: {
+        id,
+      },
+      data: {
+        icon: await localUploadPath,
+      },
+    });
+  } catch (error: unknown) {
+    res.writeHead(400, JSON.stringify((error as Error).message)).end();
+    return;
+  }
+
   res.writeHead(200, { "Content-Type": "application/json" }).end();
 };