Add an endpoint to update tags

src/constants/regex.ts

@@ -16,3 +16,11 @@ export const DATE = /^\d{4}(-\d{2}(-\d{2})?)?$/;
  */
 export const PASSWORD =
 	/^(?=.*?[A-Z])(?=.*?[a-z])(?=.*?[0-9])(?=.*?[#?!@$ %^&*-]).{8,}$/;
+
+/**
+ * A regular expression to match a hex color
+ * - Only lowercase
+ * - 3 or 6 digits
+ * - Starting with a #
+ */
+export const COLOR = /^#[0-9a-f]{3}([0-9a-f]{3})?$/;

src/routes/tags/create.ts

@@ -1,4 +1,5 @@
 import e from "@edgedb";
+import { COLOR } from "constants/regex";
 import {
 	DATABASE_READ_FAILED,
 	DATABASE_WRITE_FAILED,
@@ -88,7 +89,7 @@ export const createTag = new Elysia()
 			body: t.Object({
 				tag: t.String({ minLength: 1 }),
 				class: t.String({ minLength: 1 }),
-				color: t.Optional(t.RegExp(/^#[0-9a-f]{3}([0-9a-f]{3})?$/)),
+				color: t.Optional(t.RegExp(COLOR)),
 			}),
 		},
 	);

src/routes/tags/index.ts

@@ -2,8 +2,10 @@ import Elysia from "elysia";
 import { createTag } from "./create";
 import { deleteTag } from "./delete";
 import { listTags } from "./list";
+import { updateTag } from "./update";
 
 export const tagRouter = new Elysia({ prefix: "/tags" })
 	.use(createTag)
-	.use(deleteTag)
-	.use(listTags);
+	.use(listTags)
+	.use(updateTag)
+	.use(deleteTag);

src/routes/tags/update.ts

@@ -0,0 +1,57 @@
+import e from "@edgedb";
+import { COLOR } from "constants/regex";
+import { DATABASE_WRITE_FAILED, UNAUTHORIZED } from "constants/responses";
+import Elysia, { t } from "elysia";
+import { HttpStatusCode } from "elysia-http-status-code";
+import { client } from "index";
+import { auth } from "plugins/auth";
+import { promiseResult } from "utils/errors";
+import { responseBuilder } from "utils/response";
+
+export const updateTag = new Elysia()
+	.use(auth)
+	.use(HttpStatusCode())
+	.patch(
+		"/:id",
+		async ({ set, httpStatus, auth, params, body }) => {
+			if (!auth.isAuthorized) {
+				set.status = httpStatus.HTTP_401_UNAUTHORIZED;
+				return UNAUTHORIZED;
+			}
+
+			const query = e.update(e.Tag, (t) => ({
+				filter_single: e.op(
+					e.op(t.id, "=", e.uuid(params.id)),
+					"and",
+					e.op(auth.username, "in", t.class.students.username),
+				),
+				set: {
+					tag: body.tag ?? t.tag,
+					color: body.color ?? t.color,
+				},
+			}));
+
+			const result = await promiseResult(() => query.run(client));
+			if (result.isError) {
+				set.status = httpStatus.HTTP_500_INTERNAL_SERVER_ERROR;
+				return DATABASE_WRITE_FAILED;
+			}
+			if (!result.data) {
+				set.status = httpStatus.HTTP_404_NOT_FOUND;
+				return responseBuilder("error", {
+					error: "Tag doesn't exist or you don't have rights to edit it",
+				});
+			}
+
+			return responseBuilder("success", {
+				data: null,
+				message: "Successfully updated tag",
+			});
+		},
+		{
+			body: t.Object({
+				tag: t.Optional(t.String({ minLength: 1 })),
+				color: t.Optional(t.RegExp(COLOR)),
+			}),
+		},
+	);