fix: les 6

Les05-NextJS-Basics/quickpoll 2/src/app/api/polls/[id]/route.ts

@@ -0,0 +1,24 @@
+import { NextResponse } from "next/server";
+import { getPollById } from "@/lib/data";
+
+interface RouteParams {
+  params: Promise<{ id: string }>;
+}
+
+// GET /api/polls/[id] — enkele poll ophalen
+export async function GET(
+  request: Request,
+  { params }: RouteParams
+): Promise<NextResponse> {
+  const { id } = await params;
+  const poll = getPollById(id);
+
+  if (!poll) {
+    return NextResponse.json(
+      { error: "Poll niet gevonden" },
+      { status: 404 }
+    );
+  }
+
+  return NextResponse.json(poll);
+}

Les05-NextJS-Basics/quickpoll 2/src/app/api/polls/[id]/vote/route.ts

@@ -0,0 +1,37 @@
+import { NextResponse } from "next/server";
+import { votePoll } from "@/lib/data";
+
+interface RouteParams {
+  params: Promise<{ id: string }>;
+}
+
+interface VoteBody {
+  optionIndex: number;
+}
+
+// POST /api/polls/[id]/vote — stem uitbrengen
+export async function POST(
+  request: Request,
+  { params }: RouteParams
+): Promise<NextResponse> {
+  const { id } = await params;
+  const body: VoteBody = await request.json();
+
+  if (typeof body.optionIndex !== "number") {
+    return NextResponse.json(
+      { error: "optionIndex is verplicht" },
+      { status: 400 }
+    );
+  }
+
+  const updatedPoll = votePoll(id, body.optionIndex);
+
+  if (!updatedPoll) {
+    return NextResponse.json(
+      { error: "Poll niet gevonden of ongeldige optie" },
+      { status: 404 }
+    );
+  }
+
+  return NextResponse.json(updatedPoll);
+}

Les05-NextJS-Basics/quickpoll 2/src/app/api/polls/route.ts

@@ -0,0 +1,24 @@
+import { NextResponse } from "next/server";
+import { getPolls, createPoll } from "@/lib/data";
+import type { Poll, CreatePollBody } from "@/types";
+
+// GET /api/polls — alle polls ophalen
+export async function GET(): Promise<NextResponse<Poll[]>> {
+  const polls = getPolls();
+  return NextResponse.json(polls);
+}
+
+// POST /api/polls — nieuwe poll aanmaken
+export async function POST(request: Request): Promise<NextResponse> {
+  const body: CreatePollBody = await request.json();
+
+  if (!body.question || !body.options || body.options.length < 2) {
+    return NextResponse.json(
+      { error: "Vraag en minstens 2 opties zijn verplicht" },
+      { status: 400 }
+    );
+  }
+
+  const newPoll = createPoll(body.question, body.options);
+  return NextResponse.json(newPoll, { status: 201 });
+}

Les05-NextJS-Basics/quickpoll 2/src/app/create/page.tsx

@@ -0,0 +1,144 @@
+"use client";
+
+import { useState } from "react";
+import { useRouter } from "next/navigation";
+
+export default function CreatePollPage() {
+  const [question, setQuestion] = useState<string>("");
+  const [options, setOptions] = useState<string[]>(["", ""]);
+  const [isSubmitting, setIsSubmitting] = useState<boolean>(false);
+  const [error, setError] = useState<string | null>(null);
+  const router = useRouter();
+
+  function addOption(): void {
+    if (options.length < 6) {
+      setOptions([...options, ""]);
+    }
+  }
+
+  function removeOption(index: number): void {
+    if (options.length > 2) {
+      setOptions(options.filter((_, i) => i !== index));
+    }
+  }
+
+  function updateOption(index: number, value: string): void {
+    const newOptions = [...options];
+    newOptions[index] = value;
+    setOptions(newOptions);
+  }
+
+  async function handleSubmit(e: React.FormEvent<HTMLFormElement>): Promise<void> {
+    e.preventDefault();
+    setError(null);
+
+    const filledOptions = options.filter((opt) => opt.trim() !== "");
+    if (!question.trim() || filledOptions.length < 2) {
+      setError("Vul een vraag in en minstens 2 opties");
+      return;
+    }
+
+    setIsSubmitting(true);
+
+    const response = await fetch("/api/polls", {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({
+        question: question.trim(),
+        options: filledOptions,
+      }),
+    });
+
+    if (response.ok) {
+      router.push("/");
+    } else {
+      setError("Er ging iets mis bij het aanmaken van de poll");
+    }
+
+    setIsSubmitting(false);
+  }
+
+  return (
+    <div className="max-w-2xl mx-auto">
+      <h1 className="text-2xl font-bold text-gray-900 mb-6">
+        Nieuwe Poll Aanmaken
+      </h1>
+
+      <form onSubmit={handleSubmit} className="space-y-6">
+        <div>
+          <label
+            htmlFor="question"
+            className="block text-sm font-medium text-gray-700 mb-2"
+          >
+            Vraag
+          </label>
+          <input
+            id="question"
+            type="text"
+            value={question}
+            onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
+              setQuestion(e.target.value)
+            }
+            placeholder="Stel je vraag..."
+            className="w-full px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent outline-none"
+            required
+          />
+        </div>
+
+        <div>
+          <label className="block text-sm font-medium text-gray-700 mb-2">
+            Opties (minimaal 2, maximaal 6)
+          </label>
+          <div className="space-y-3">
+            {options.map((option, index) => (
+              <div key={index} className="flex gap-2">
+                <input
+                  type="text"
+                  value={option}
+                  onChange={(e: React.ChangeEvent<HTMLInputElement>) =>
+                    updateOption(index, e.target.value)
+                  }
+                  placeholder={`Optie ${index + 1}`}
+                  className="flex-1 px-4 py-3 border border-gray-300 rounded-lg focus:ring-2 focus:ring-purple-500 focus:border-transparent outline-none"
+                />
+                {options.length > 2 && (
+                  <button
+                    type="button"
+                    onClick={() => removeOption(index)}
+                    className="px-3 text-red-500 hover:bg-red-50 rounded-lg transition-colors"
+                  >
+                    ✕
+                  </button>
+                )}
+              </div>
+            ))}
+          </div>
+
+          {options.length < 6 && (
+            <button
+              type="button"
+              onClick={addOption}
+              className="mt-3 text-sm text-purple-600 hover:text-purple-800 font-medium"
+            >
+              + Optie toevoegen
+            </button>
+          )}
+        </div>
+
+        {error && (
+          <p className="text-red-600 text-sm bg-red-50 p-3 rounded-lg">
+            {error}
+          </p>
+        )}
+
+        <button
+          type="submit"
+          disabled={isSubmitting}
+          className="w-full bg-purple-600 text-white py-3 rounded-lg font-medium hover:bg-purple-700 disabled:bg-gray-300 disabled:cursor-not-allowed transition-colors"
+        >
+          {isSubmitting ? "Bezig met aanmaken..." : "Poll Aanmaken"}
+        </button>
+      </form>
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/error.tsx

@@ -0,0 +1,24 @@
+"use client";
+
+export default function Error({
+  error,
+  reset,
+}: {
+  error: Error;
+  reset: () => void;
+}) {
+  return (
+    <div className="text-center py-16">
+      <h2 className="text-2xl font-bold text-red-600 mb-4">
+        Er ging iets mis!
+      </h2>
+      <p className="text-gray-600 mb-6">{error.message}</p>
+      <button
+        onClick={() => reset()}
+        className="bg-purple-600 text-white px-6 py-3 rounded-lg hover:bg-purple-700 transition-colors"
+      >
+        Probeer opnieuw
+      </button>
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/globals.css

@@ -0,0 +1 @@
+@import "tailwindcss";

Les05-NextJS-Basics/quickpoll 2/src/app/layout.tsx

@@ -0,0 +1,46 @@
+import type { Metadata } from "next";
+import Link from "next/link";
+import "./globals.css";
+
+export const metadata: Metadata = {
+  title: "QuickPoll — Stem op alles",
+  description: "Maak en deel polls met je vrienden",
+};
+
+export default function RootLayout({
+  children,
+}: {
+  children: React.ReactNode;
+}) {
+  return (
+    <html lang="nl">
+      <body className="min-h-screen bg-gray-50 text-gray-900">
+        <nav className="bg-white border-b border-gray-200 shadow-sm">
+          <div className="max-w-4xl mx-auto px-4 py-4 flex items-center justify-between">
+            <Link href="/" className="text-xl font-bold text-purple-600">
+              🗳️ QuickPoll
+            </Link>
+            <div className="flex gap-4 items-center">
+              <Link
+                href="/"
+                className="text-gray-600 hover:text-purple-600 transition-colors"
+              >
+                Polls
+              </Link>
+              <Link
+                href="/create"
+                className="bg-purple-600 text-white px-4 py-2 rounded-lg hover:bg-purple-700 transition-colors text-sm font-medium"
+              >
+                Nieuwe Poll
+              </Link>
+            </div>
+          </div>
+        </nav>
+        <main className="max-w-4xl mx-auto px-4 py-8">{children}</main>
+        <footer className="text-center text-gray-400 text-sm py-8">
+          © 2025 QuickPoll — NOVI Hogeschool Les 5
+        </footer>
+      </body>
+    </html>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/loading.tsx

@@ -0,0 +1,24 @@
+export default function Loading() {
+  return (
+    <div className="space-y-4">
+      <div className="animate-pulse">
+        <div className="h-8 bg-gray-200 rounded w-1/3 mb-2" />
+        <div className="h-4 bg-gray-200 rounded w-1/2 mb-8" />
+      </div>
+      {[1, 2, 3].map((i) => (
+        <div
+          key={i}
+          className="animate-pulse bg-white rounded-xl border border-gray-200 p-6"
+        >
+          <div className="h-5 bg-gray-200 rounded w-3/4 mb-3" />
+          <div className="h-4 bg-gray-200 rounded w-1/4 mb-3" />
+          <div className="flex gap-2">
+            <div className="h-6 bg-gray-100 rounded-full w-20" />
+            <div className="h-6 bg-gray-100 rounded-full w-24" />
+            <div className="h-6 bg-gray-100 rounded-full w-16" />
+          </div>
+        </div>
+      ))}
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/not-found.tsx

@@ -0,0 +1,18 @@
+import Link from "next/link";
+
+export default function NotFound() {
+  return (
+    <div className="text-center py-16">
+      <h2 className="text-4xl font-bold text-gray-900 mb-4">404</h2>
+      <p className="text-gray-600 mb-6">
+        Deze pagina bestaat niet (meer).
+      </p>
+      <Link
+        href="/"
+        className="bg-purple-600 text-white px-6 py-3 rounded-lg hover:bg-purple-700 transition-colors inline-block"
+      >
+        Terug naar home
+      </Link>
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/page.tsx

@@ -0,0 +1,57 @@
+import Link from "next/link";
+import { getPolls } from "@/lib/data";
+import type { Poll } from "@/types";
+
+export const dynamic = "force-dynamic";
+
+export default function HomePage() {
+  const polls: Poll[] = getPolls();
+
+  const totalVotes = (poll: Poll): number =>
+    poll.votes.reduce((sum, v) => sum + v, 0);
+
+  return (
+    <div>
+      <h1 className="text-3xl font-bold text-gray-900 mb-2">Actieve Polls</h1>
+      <p className="text-gray-500 mb-8">Klik op een poll om te stemmen</p>
+
+      <div className="grid gap-4">
+        {polls.map((poll) => (
+          <Link
+            key={poll.id}
+            href={`/poll/${poll.id}`}
+            className="block bg-white rounded-xl border border-gray-200 p-6 hover:border-purple-300 hover:shadow-md transition-all"
+          >
+            <h2 className="text-lg font-semibold text-gray-900 mb-2">
+              {poll.question}
+            </h2>
+            <div className="flex items-center gap-4 text-sm text-gray-500">
+              <span>{poll.options.length} opties</span>
+              <span>·</span>
+              <span>{totalVotes(poll)} stemmen</span>
+            </div>
+            <div className="flex flex-wrap gap-2 mt-3">
+              {poll.options.map((option, index) => (
+                <span
+                  key={index}
+                  className="bg-gray-100 text-gray-600 px-3 py-1 rounded-full text-sm"
+                >
+                  {option}
+                </span>
+              ))}
+            </div>
+          </Link>
+        ))}
+      </div>
+
+      {polls.length === 0 && (
+        <div className="text-center py-16 text-gray-400">
+          <p className="text-lg">Nog geen polls</p>
+          <Link href="/create" className="text-purple-600 hover:underline">
+            Maak de eerste!
+          </Link>
+        </div>
+      )}
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/poll/[id]/not-found.tsx

@@ -0,0 +1,20 @@
+import Link from "next/link";
+
+export default function PollNotFound() {
+  return (
+    <div className="text-center py-16">
+      <h2 className="text-2xl font-bold text-gray-900 mb-4">
+        Poll niet gevonden
+      </h2>
+      <p className="text-gray-600 mb-6">
+        Deze poll bestaat niet of is verwijderd.
+      </p>
+      <Link
+        href="/"
+        className="bg-purple-600 text-white px-6 py-3 rounded-lg hover:bg-purple-700 transition-colors inline-block"
+      >
+        Bekijk alle polls
+      </Link>
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/app/poll/[id]/page.tsx

@@ -0,0 +1,40 @@
+import { notFound } from "next/navigation";
+import { getPollById } from "@/lib/data";
+import VoteForm from "@/components/VoteForm";
+import type { Metadata } from "next";
+
+interface PageProps {
+  params: Promise<{ id: string }>;
+}
+
+export async function generateMetadata({ params }: PageProps): Promise<Metadata> {
+  const { id } = await params;
+  const poll = getPollById(id);
+
+  if (!poll) {
+    return { title: "Poll niet gevonden" };
+  }
+
+  return {
+    title: `${poll.question} — QuickPoll`,
+    description: `Stem op: ${poll.options.join(", ")}`,
+  };
+}
+
+export default async function PollPage({ params }: PageProps) {
+  const { id } = await params;
+  const poll = getPollById(id);
+
+  if (!poll) {
+    notFound();
+  }
+
+  return (
+    <div className="max-w-2xl mx-auto">
+      <h1 className="text-2xl font-bold text-gray-900 mb-6">
+        {poll.question}
+      </h1>
+      <VoteForm poll={poll} />
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/components/VoteForm.tsx

@@ -0,0 +1,128 @@
+"use client";
+
+import { useState } from "react";
+import { useRouter } from "next/navigation";
+import type { Poll } from "@/types";
+
+interface VoteFormProps {
+  poll: Poll;
+}
+
+export default function VoteForm({ poll }: VoteFormProps) {
+  const [selectedOption, setSelectedOption] = useState<number | null>(null);
+  const [hasVoted, setHasVoted] = useState<boolean>(false);
+  const [isSubmitting, setIsSubmitting] = useState<boolean>(false);
+  const [currentPoll, setCurrentPoll] = useState<Poll>(poll);
+  const router = useRouter();
+
+  const totalVotes: number = currentPoll.votes.reduce(
+    (sum, v) => sum + v,
+    0
+  );
+
+  async function handleVote(): Promise<void> {
+    if (selectedOption === null || isSubmitting) return;
+
+    setIsSubmitting(true);
+
+    const response = await fetch(`/api/polls/${currentPoll.id}/vote`, {
+      method: "POST",
+      headers: { "Content-Type": "application/json" },
+      body: JSON.stringify({ optionIndex: selectedOption }),
+    });
+
+    if (response.ok) {
+      const updatedPoll: Poll = await response.json();
+      setCurrentPoll(updatedPoll);
+      setHasVoted(true);
+    }
+
+    setIsSubmitting(false);
+  }
+
+  function getPercentage(votes: number): number {
+    if (totalVotes === 0) return 0;
+    return Math.round((votes / totalVotes) * 100);
+  }
+
+  return (
+    <div className="space-y-3">
+      {currentPoll.options.map((option, index) => {
+        const percentage = getPercentage(currentPoll.votes[index]);
+        const isSelected = selectedOption === index;
+
+        return (
+          <button
+            key={index}
+            onClick={() => !hasVoted && setSelectedOption(index)}
+            disabled={hasVoted}
+            className={`w-full text-left p-4 rounded-lg border-2 transition-all relative overflow-hidden ${
+              hasVoted
+                ? "border-gray-200 cursor-default"
+                : isSelected
+                  ? "border-purple-500 bg-purple-50"
+                  : "border-gray-200 hover:border-purple-300 cursor-pointer"
+            }`}
+          >
+            {hasVoted && (
+              <div
+                className="absolute inset-0 bg-purple-100 transition-all duration-500"
+                style={{ width: `${percentage}%` }}
+              />
+            )}
+            <div className="relative flex justify-between items-center">
+              <div className="flex items-center gap-3">
+                {!hasVoted && (
+                  <div
+                    className={`w-5 h-5 rounded-full border-2 flex items-center justify-center ${
+                      isSelected
+                        ? "border-purple-500 bg-purple-500"
+                        : "border-gray-300"
+                    }`}
+                  >
+                    {isSelected && (
+                      <div className="w-2 h-2 rounded-full bg-white" />
+                    )}
+                  </div>
+                )}
+                <span className="font-medium">{option}</span>
+              </div>
+              {hasVoted && (
+                <span className="text-sm font-semibold text-purple-700">
+                  {percentage}% ({currentPoll.votes[index]} stemmen)
+                </span>
+              )}
+            </div>
+          </button>
+        );
+      })}
+
+      {!hasVoted && (
+        <button
+          onClick={handleVote}
+          disabled={selectedOption === null || isSubmitting}
+          className="w-full bg-purple-600 text-white py-3 rounded-lg font-medium hover:bg-purple-700 disabled:bg-gray-300 disabled:cursor-not-allowed transition-colors mt-4"
+        >
+          {isSubmitting ? "Bezig met stemmen..." : "Stem!"}
+        </button>
+      )}
+
+      {hasVoted && (
+        <div className="text-center pt-4">
+          <p className="text-green-600 font-medium mb-2">
+            Bedankt voor je stem!
+          </p>
+          <p className="text-sm text-gray-500">
+            Totaal: {totalVotes} stemmen
+          </p>
+          <button
+            onClick={() => router.push("/")}
+            className="mt-4 text-purple-600 hover:underline text-sm"
+          >
+            ← Terug naar alle polls
+          </button>
+        </div>
+      )}
+    </div>
+  );
+}

Les05-NextJS-Basics/quickpoll 2/src/lib/data.ts

@@ -0,0 +1,55 @@
+import { Poll } from "@/types";
+
+export const polls: Poll[] = [
+  {
+    id: "1",
+    question: "Wat is de beste code editor?",
+    options: ["VS Code", "Cursor", "Vim", "WebStorm"],
+    votes: [12, 25, 5, 3],
+  },
+  {
+    id: "2",
+    question: "Wat is de beste programmeertaal?",
+    options: ["TypeScript", "Python", "Rust", "Go"],
+    votes: [18, 15, 8, 4],
+  },
+  {
+    id: "3",
+    question: "Welk framework heeft de toekomst?",
+    options: ["Next.js", "Remix", "Astro", "SvelteKit"],
+    votes: [22, 6, 10, 7],
+  },
+];
+
+let nextId = 4;
+
+export function getPolls(): Poll[] {
+  return polls;
+}
+
+export function getPollById(id: string): Poll | undefined {
+  return polls.find((poll) => poll.id === id);
+}
+
+export function createPoll(question: string, options: string[]): Poll {
+  const newPoll: Poll = {
+    id: String(nextId++),
+    question,
+    options,
+    votes: new Array(options.length).fill(0),
+  };
+  polls.push(newPoll);
+  return newPoll;
+}
+
+export function votePoll(
+  pollId: string,
+  optionIndex: number
+): Poll | undefined {
+  const poll = polls.find((p) => p.id === pollId);
+  if (!poll || optionIndex < 0 || optionIndex >= poll.options.length) {
+    return undefined;
+  }
+  poll.votes[optionIndex]++;
+  return poll;
+}

Les05-NextJS-Basics/quickpoll 2/src/middleware.ts

@@ -0,0 +1,17 @@
+import { NextResponse } from "next/server";
+import type { NextRequest } from "next/server";
+
+export function middleware(request: NextRequest): NextResponse {
+  const start = Date.now();
+
+  console.log(`[${request.method}] ${request.nextUrl.pathname}`);
+
+  const response = NextResponse.next();
+  response.headers.set("x-request-time", String(Date.now() - start));
+
+  return response;
+}
+
+export const config = {
+  matcher: ["/api/:path*", "/poll/:path*"],
+};

Les05-NextJS-Basics/quickpoll 2/src/types/index.ts

@@ -0,0 +1,11 @@
+export interface Poll {
+  id: string;
+  question: string;
+  options: string[];
+  votes: number[];
+}
+
+export interface CreatePollBody {
+  question: string;
+  options: string[];
+}