feat: course api

src/server/api/routers/course.ts

@@ -1,9 +1,24 @@
 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 { courses } from "~/server/db/schema";
 
-export const courseRouter = createTRPCRouter({});
+export const courseRouter = createTRPCRouter({
+  getAllCourses: protectedProcedure.query(async ({ ctx }) => {
+    return await ctx.db.query.courses.findMany();
+  }),
+  getCourse: protectedProcedure
+    .input(
+      z.object({
+        courseId: z.number(),
+        includeLessons: z.boolean().optional().default(false),
+      }),
+    )
+    .query(async ({ ctx, input }) => {
+      const lessons = input.includeLessons ? true : undefined;
+      return await ctx.db.query.courses.findFirst({
+        where: eq(courses.courseId, input.courseId),
+        with: { lessons },
+      });
+    }),
+});