Feature/create lesson page

src/actions/admin/lesson.ts

@@ -0,0 +1,36 @@
+'use server';
+import { revalidatePath } from "next/cache";
+import { db } from "@/db/index";
+import { lessons } from "@/db/schema";
+import { lessonFormSchema } from "@/lib/validations/lesson";
+import { actionClient } from "@/lib/safe-action";
+
+export const createLessonAction = actionClient
+  .schema(lessonFormSchema)
+  .action(async ({ parsedInput }) => {
+    const {
+      title,
+      description,
+      unitId,
+      courseId,
+      mediaType,
+      contentUrl,
+    } = parsedInput;
+
+    const metadata = JSON.stringify({
+      title,
+      description: description ?? "",
+    });
+
+    await db.insert(lessons).values({
+      unitId,
+      mediaType,   // now real value from the form
+      metadata,
+      contentUrl,  // real URL from the form
+      // contentBlobId stays null
+    });
+
+    revalidatePath(`/admin/courses/${courseId}`);
+
+    return { success: true };
+});

src/actions/admin/tag.ts

@@ -1,6 +1,6 @@
 'use server';
 import { tags, users, coursesTags } from "@/db/schema";
-import { type TagFormValues } from "@/lib/validations/course";
+import { type TagFormValues } from "@/lib/validations/tag";
 import { db } from "@/db";
 import { auth } from "@/lib/auth";
 import { headers } from "next/headers";

src/actions/admin/units.ts

@@ -0,0 +1,31 @@
+// src/app/admin/courses/[courseId]/lesson/create/actions.ts
+'use server';
+
+import { revalidatePath } from "next/cache";
+import { db } from "@/db/index";
+import { units } from "@/db/schema";
+import { createUnitSchema } from "@/lib/validations/unit";
+import { actionClient } from "@/lib/safe-action";
+
+// Create unit (for the modal)
+export const createUnitAction = actionClient
+  .schema(createUnitSchema)
+  .action(async ({ parsedInput }) => {
+    const { title, courseId } = parsedInput;
+    // Minimal insert: courseId (text) + title; position defaults to 1
+    const [unit] = await db
+      .insert(units)
+      .values({
+        courseId,
+        title,
+      })
+      .returning();
+
+    revalidatePath(`/admin/courses/${courseId}`);
+
+    return {
+      success: true,
+      unitId: unit.id,
+      unitTitle: unit.title,
+    };
+});

src/app/admin/courses/[courseId]/lesson/create/page.tsx

@@ -0,0 +1,57 @@
+import { db } from "@/db/index";
+import { units } from "@/db/schema";
+import { eq } from "drizzle-orm";
+import { CreateLessonForm } from "@/components/admin/CreateLessonForm";
+import {
+  Card,
+  CardHeader,
+  CardTitle,
+  CardDescription,
+  CardContent,
+} from "@/components/ui/card";
+
+type PageProps = {
+  params: Promise<{ courseId: string }>;
+};
+
+export default async function CreateLessonPage({ params }: PageProps) {
+  const { courseId } = await params;
+
+  const courseUnits = await db
+    .select()
+    .from(units)
+    .where(eq(units.courseId, courseId));
+
+  return (
+    <div className="mx-auto flex max-w-3xl flex-col gap-6">
+      <div>
+        <h1 className="text-3xl font-semibold tracking-tight">
+          Create lesson
+        </h1>
+        <p className="mt-1 text-sm text-muted-foreground">
+          Define lesson details, add content, and assign it to a unit in this
+          course.
+        </p>
+      </div>
+
+      <Card className="border border-border/60 shadow-sm">
+        <CardHeader className="pb-4">
+          <CardTitle className="text-lg">Lesson details</CardTitle>
+          <CardDescription>
+            Fill out the fields below to create a new lesson. You can also
+            create a new unit on the fly if you need one.
+          </CardDescription>
+        </CardHeader>
+        <CardContent className="pt-2">
+          <CreateLessonForm
+            courseId={courseId}
+            initialUnits={courseUnits.map((u) => ({
+              id: u.id,
+              title: u.title ?? `Unit ${u.id}`,
+            }))}
+          />
+        </CardContent>
+      </Card>
+    </div>
+  );
+}

src/app/admin/courses/[courseId]/page.tsx

@@ -1,8 +1,13 @@
-export default async function Page({
-  params,
-}: {
-  params: Promise<{ courseId: string }>;
+
+export default async function CourseIdPage({ 
+  params 
+}: { 
+  params: Promise<{ courseId: string}> 
 }) {
-  const { courseId } = await params;
-  return <div>This is the admin course page for {courseId}</div>;
-}
+  const { courseId } = await params; 
+  const id = Number(courseId);
+
+  return <div className="">
+    Course ID: {id}
+  </div>
+}

src/app/admin/layout.tsx

@@ -1,5 +1,7 @@
 import React from "react";
-import AdminNavbar from "@/components/AdminNavbar";
+import AdminNavbar from "@/components/admin/AdminNavbar";
+import { Toaster } from "sonner"
+
 
 export default function AdminLayout({
   children,
@@ -14,6 +16,7 @@ export default function AdminLayout({
       {/* Page content */}
       <main className="flex-1 p-6">
         {children}
+        <Toaster richColors position="top-right" />
       </main>
 
       {/* Footer */}

src/components/admin/CourseTable.tsx

@@ -38,6 +38,7 @@ import {
 import { getAllCourses } from "@/actions/admin/course";
 import { CourseWithData } from "@/lib/types";
 import { useEffect, useState } from "react";
+import Link from "next/link";
 
 const columns: ColumnDef<CourseWithData>[] = [
   {
@@ -80,7 +81,14 @@ const columns: ColumnDef<CourseWithData>[] = [
         </div>
       )
     },
-    cell: ({ row }) => <div className="text-left pl-3">{row.getValue("title")}</div>,
+    cell: ({ row }) => {
+      const course = row.original;
+      return (
+        <div className="text-left pl-3">
+          <Link className="hover:underline" href={`/admin/courses/${course.id}`}>{row.getValue("title")}</Link>
+        </div>
+      );
+    },
   },
   {
     accessorKey: "description",