fix: les 6

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;
+}