feat: user api

src/server/api/routers/user.ts

@@ -1,9 +1,29 @@
 import { eq } from "drizzle-orm";
-import {
-  createTRPCRouter,
-  protectedProcedure,
-  publicProcedure,
-} from "~/server/api/trpc";
+import { z } from "zod";
+import { createTRPCRouter, protectedProcedure } from "~/server/api/trpc";
+import { db } from "~/server/db";
 import { users } from "~/server/db/schema";
 
-export const userRouter = createTRPCRouter({});
+const getUser = async (userId: string) =>
+  await db.query.users.findFirst({ where: eq(users.userId, userId) });
+
+export const userRouter = createTRPCRouter({
+  getUser: protectedProcedure
+    .input(z.object({ userId: z.string() }))
+    .query(async ({ input }) => {
+      return await getUser(input.userId);
+    }),
+  getSelf: protectedProcedure.query(async ({ ctx }) => {
+    const userId = ctx.auth.userId;
+    return await getUser(userId);
+  }),
+  updateActiveCourse: protectedProcedure
+    .input(z.object({ courseId: z.number() }))
+    .mutation(async ({ ctx, input }) => {
+      const userId = ctx.auth.userId;
+      await ctx.db
+        .update(users)
+        .set({ activeCourseId: input.courseId })
+        .where(eq(users.userId, userId));
+    }),
+});