advance

app/(public)/courses/[slug]/page.tsx

@@ -1,135 +1,184 @@
-"use client";
-
 import Link from "next/link";
-import { useParams } from "next/navigation";
-import { useEffect, useState } from "react";
-import ProgressBar from "@/components/ProgressBar";
-import { getCourseBySlug } from "@/lib/data/courseCatalog";
-import { getCourseProgressPercent, progressUpdatedEventName } from "@/lib/progress/localProgress";
-import { teacherCoursesUpdatedEventName } from "@/lib/data/teacherCourses";
-import { supabaseBrowser } from "@/lib/supabase/browser";
-import type { Course } from "@/types/course";
+import { notFound } from "next/navigation";
+import { db } from "@/lib/prisma";
+import { requireUser } from "@/lib/auth/requireUser";
 
-export default function CourseDetailPage() {
-  const params = useParams<{ slug: string }>();
-  const slug = params.slug;
-  const [course, setCourse] = useState<Course | undefined>(() => getCourseBySlug(slug));
-  const [hasResolvedCourse, setHasResolvedCourse] = useState(false);
-
-  const [userId, setUserId] = useState("guest");
-  const [isAuthed, setIsAuthed] = useState(false);
-  const [progress, setProgress] = useState(0);
-
-  useEffect(() => {
-    const loadCourse = () => {
-      setCourse(getCourseBySlug(slug));
-      setHasResolvedCourse(true);
-    };
-    loadCourse();
-    window.addEventListener(teacherCoursesUpdatedEventName, loadCourse);
-    return () => window.removeEventListener(teacherCoursesUpdatedEventName, loadCourse);
-  }, [slug]);
-
-  useEffect(() => {
-    const client = supabaseBrowser();
-    if (!client) return;
-
-    client.auth.getUser().then(({ data }) => {
-      const nextId = data.user?.id ?? "guest";
-      setUserId(nextId);
-      setIsAuthed(Boolean(data.user));
-    });
-
-    const { data } = client.auth.onAuthStateChange((_event, session) => {
-      setUserId(session?.user?.id ?? "guest");
-      setIsAuthed(Boolean(session?.user));
-    });
-
-    return () => data.subscription.unsubscribe();
-  }, []);
-
-  useEffect(() => {
-    if (!course) return;
-    const load = () => setProgress(getCourseProgressPercent(userId, course.slug, course.lessons.length));
-    load();
-    window.addEventListener(progressUpdatedEventName, load);
-    return () => window.removeEventListener(progressUpdatedEventName, load);
-  }, [course, userId]);
-
-  if (!course && !hasResolvedCourse) {
-    return (
-      <div className="rounded-xl border border-slate-200 bg-white p-6 shadow-sm">
-        <p className="text-slate-600">Loading course...</p>
-      </div>
-    );
+function getText(value: unknown): string {
+  if (!value) return "";
+  if (typeof value === "string") return value;
+  if (typeof value === "object") {
+    const record = value as Record<string, unknown>;
+    if (typeof record.en === "string") return record.en;
+    if (typeof record.es === "string") return record.es;
   }
+  return "";
+}
 
-  if (!course) {
-    return (
-      <div className="rounded-xl border border-slate-200 bg-white p-6 shadow-sm">
-        <h1 className="text-2xl font-bold text-slate-900">Course not found</h1>
-        <p className="mt-2 text-slate-600">The requested course slug does not exist in mock data.</p>
-        <Link className="mt-4 inline-flex rounded-md bg-ink px-4 py-2 text-sm font-semibold text-white" href="/courses">
-          Back to courses
-        </Link>
-      </div>
-    );
-  }
+const levelLabel = (level: string) => {
+  if (level === "BEGINNER") return "Beginner";
+  if (level === "INTERMEDIATE") return "Intermediate";
+  if (level === "ADVANCED") return "Advanced";
+  return level;
+};
+
+type PageProps = {
+  params: Promise<{ slug: string }>;
+};
+
+export default async function CourseDetailPage({ params }: PageProps) {
+  const { slug } = await params;
+
+  const course = await db.course.findFirst({
+    where: { slug, status: "PUBLISHED" },
+    include: {
+      author: { select: { fullName: true } },
+      modules: {
+        orderBy: { orderIndex: "asc" },
+        include: {
+          lessons: {
+            orderBy: { orderIndex: "asc" },
+            select: { id: true, title: true, estimatedDuration: true },
+          },
+        },
+      },
+      _count: { select: { enrollments: true } },
+    },
+  });
+
+  if (!course) notFound();
+
+  const user = await requireUser();
+  const isAuthed = Boolean(user?.id);
+
+  const title = getText(course.title) || "Untitled course";
+  const summary = getText(course.description) || "";
+
+  const lessons = course.modules.flatMap((m) =>
+    m.lessons.map((l) => ({
+      id: l.id,
+      title: getText(l.title) || "Untitled lesson",
+      minutes: Math.ceil((l.estimatedDuration ?? 0) / 60),
+    })),
+  );
+  const lessonsCount = lessons.length;
 
   const redirect = `/courses/${course.slug}/learn`;
   const loginUrl = `/auth/login?redirectTo=${encodeURIComponent(redirect)}`;
 
+  const learningOutcomes = [
+    "Understand key legal vocabulary in context",
+    "Apply contract and case analysis patterns",
+    "Improve professional written legal communication",
+  ];
+
   return (
-    <div className="grid gap-7 lg:grid-cols-[1.9fr_0.9fr]">
-      <section className="pt-1">
-        <Link className="inline-flex items-center gap-2 text-lg text-slate-600 hover:text-brand md:text-2xl" href="/courses">
-          <span className="text-xl">{"<-"}</span>
-          Back to Courses
-        </Link>
+    <div className="acve-page">
+      <section className="acve-panel overflow-hidden p-0">
+        <div className="grid gap-0 lg:grid-cols-[1.6fr_0.9fr]">
+          <div className="acve-section-base">
+            <Link className="inline-flex items-center gap-2 text-base text-slate-600 hover:text-brand" href="/courses">
+              <span>{"<-"}</span>
+              Back to Courses
+            </Link>
 
-        <div className="mt-6 flex items-center gap-3 text-base text-slate-600 md:text-lg">
-          <span className="rounded-full bg-accent px-4 py-1 text-base font-semibold text-white">{course.level}</span>
-          <span>Contract Law</span>
-        </div>
+            <div className="mt-4 flex flex-wrap items-center gap-2 text-sm text-slate-600">
+              <span className="rounded-full bg-accent px-3 py-1 font-semibold text-white">
+                {levelLabel(course.level)}
+              </span>
+              <span className="rounded-full border border-slate-300 bg-white px-3 py-1 font-semibold">
+                {course.status.toLowerCase()}
+              </span>
+              <span className="rounded-full border border-slate-300 bg-white px-3 py-1">
+                {lessonsCount} lessons
+              </span>
+            </div>
 
-        <h1 className="acve-heading mt-5 text-4xl leading-tight md:text-7xl">{course.title}</h1>
-        <p className="mt-5 max-w-5xl text-xl leading-relaxed text-slate-600 md:text-4xl">{course.summary}</p>
+            <h1 className="mt-4 text-4xl font-semibold leading-tight text-[#1f2a3a] md:text-5xl">{title}</h1>
+            <p className="mt-3 max-w-3xl text-base leading-relaxed text-slate-600 md:text-lg">{summary}</p>
 
-        <div className="mt-7 flex flex-wrap items-center gap-5 text-lg text-slate-600 md:text-3xl">
-          <span className="font-semibold text-slate-800">Rating {course.rating.toFixed(1)}</span>
-          <span>{course.students.toLocaleString()} students</span>
-          <span>{course.weeks} weeks</span>
-          <span>{course.lessonsCount} lessons</span>
+            <div className="mt-5 grid gap-3 sm:grid-cols-3">
+              <div className="rounded-xl border border-slate-200 bg-white p-3">
+                <p className="text-xs font-semibold uppercase tracking-wide text-slate-500">Students</p>
+                <p className="mt-1 text-2xl font-semibold text-slate-900">
+                  {course._count.enrollments.toLocaleString()}
+                </p>
+              </div>
+              <div className="rounded-xl border border-slate-200 bg-white p-3">
+                <p className="text-xs font-semibold uppercase tracking-wide text-slate-500">Lessons</p>
+                <p className="mt-1 text-2xl font-semibold text-slate-900">{lessonsCount}</p>
+              </div>
+              <div className="rounded-xl border border-slate-200 bg-white p-3">
+                <p className="text-xs font-semibold uppercase tracking-wide text-slate-500">Instructor</p>
+                <p className="mt-1 text-lg font-semibold text-slate-900">
+                  {course.author.fullName || "ACVE Team"}
+                </p>
+              </div>
+            </div>
+          </div>
+
+          <aside className="border-t border-slate-200 bg-slate-50/80 p-6 lg:border-l lg:border-t-0">
+            <h2 className="text-sm font-semibold uppercase tracking-wide text-slate-500">What you will learn</h2>
+            <ul className="mt-3 space-y-2">
+              {learningOutcomes.map((item) => (
+                <li key={item} className="rounded-lg border border-slate-200 bg-white px-3 py-2 text-sm text-slate-700">
+                  {item}
+                </li>
+              ))}
+            </ul>
+          </aside>
         </div>
       </section>
 
-      <aside className="acve-panel space-y-5 p-7">
-        <h2 className="text-2xl text-slate-700 md:text-4xl">Your Progress</h2>
-        <div className="flex items-end justify-between">
-          <p className="text-4xl font-semibold text-brand md:text-6xl">{progress}%</p>
-          <p className="text-lg text-slate-600 md:text-3xl">
-            {Math.round((progress / 100) * course.lessonsCount)}/{course.lessonsCount} lessons
-          </p>
-        </div>
-        <ProgressBar value={progress} />
-        <div className="border-t border-slate-200 pt-5 text-lg text-slate-700 md:text-3xl">
-          <p className="mb-1 text-base text-slate-500 md:text-2xl">Instructor</p>
-          <p className="mb-4 font-semibold text-slate-800">{course.instructor}</p>
-          <p className="mb-1 text-base text-slate-500 md:text-2xl">Duration</p>
-          <p className="mb-4 font-semibold text-slate-800">{course.weeks} weeks</p>
-          <p className="mb-1 text-base text-slate-500 md:text-2xl">Level</p>
-          <p className="font-semibold text-slate-800">{course.level}</p>
-        </div>
-        {isAuthed ? (
-          <Link className="acve-button-primary mt-2 inline-flex w-full justify-center px-4 py-3 text-xl font-semibold md:text-2xl hover:brightness-105" href={redirect}>
-            Start Course
-          </Link>
-        ) : (
-          <Link className="acve-button-primary mt-2 inline-flex w-full justify-center px-4 py-3 text-xl font-semibold md:text-2xl hover:brightness-105" href={loginUrl}>
-            Login to start
-          </Link>
-        )}
-      </aside>
+      <section className="grid gap-5 lg:grid-cols-[1.6fr_0.85fr]">
+        <article className="acve-panel acve-section-base">
+          <h2 className="text-2xl font-semibold text-slate-900">Course structure preview</h2>
+          <div className="mt-4 grid gap-2">
+            {lessons.slice(0, 5).map((lesson, index) => (
+              <div
+                key={lesson.id}
+                className="flex items-center justify-between rounded-lg border border-slate-200 bg-white px-3 py-2 text-sm"
+              >
+                <span className="font-medium text-slate-800">
+                  Lesson {index + 1}: {lesson.title}
+                </span>
+                <span className="text-slate-500">{lesson.minutes} min</span>
+              </div>
+            ))}
+            {lessons.length === 0 && (
+              <p className="rounded-lg border border-dashed border-slate-200 bg-slate-50 px-3 py-4 text-sm text-slate-500">
+                No lessons yet. Check back soon.
+              </p>
+            )}
+          </div>
+        </article>
+
+        <aside className="acve-panel space-y-5 p-6">
+          <h2 className="text-2xl text-slate-700 md:text-4xl">Course details</h2>
+          <div className="border-t border-slate-200 pt-5 text-lg text-slate-700 md:text-3xl">
+            <p className="mb-1 text-base text-slate-500 md:text-2xl">Instructor</p>
+            <p className="mb-4 font-semibold text-slate-800">{course.author.fullName || "ACVE Team"}</p>
+            <p className="mb-1 text-base text-slate-500 md:text-2xl">Level</p>
+            <p className="mb-4 font-semibold text-slate-800">{levelLabel(course.level)}</p>
+            <p className="mb-1 text-base text-slate-500 md:text-2xl">Lessons</p>
+            <p className="font-semibold text-slate-800">{lessonsCount}</p>
+          </div>
+          {isAuthed ? (
+            <Link
+              className="acve-button-primary mt-2 inline-flex w-full justify-center px-4 py-3 text-xl font-semibold md:text-2xl hover:brightness-105"
+              href={redirect}
+            >
+              Start Course
+            </Link>
+          ) : (
+            <Link
+              className="acve-button-primary mt-2 inline-flex w-full justify-center px-4 py-3 text-xl font-semibold md:text-2xl hover:brightness-105"
+              href={loginUrl}
+            >
+              Login to start
+            </Link>
+          )}
+        </aside>
+      </section>
     </div>
   );
 }