668 lines
26 KiB
JavaScript
668 lines
26 KiB
JavaScript
(function () {
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"use strict";
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var STORAGE_KEY = "50ohm-exam-simulator-v1";
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var STORAGE_VERSION = 3;
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var QUESTION_COUNT = 25;
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var ANSWER_LABELS = ["A", "B", "C", "D"];
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var PART_DEFINITIONS = {
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B: { label: "Betriebliche Kenntnisse", minutes: 45 },
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V: { label: "Kenntnisse von Vorschriften", minutes: 45 },
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N: { label: "Technische Kenntnisse Klasse N", minutes: 45 },
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E: { label: "Technische Kenntnisse Klasse E", minutes: 45 },
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A: { label: "Technische Kenntnisse Klasse A", minutes: 60 }
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};
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var EXAM_CHOICES = [
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{ id: "N", group: "primary", label: "Klasse N", detail: "B + V + N", parts: ["B", "V", "N"], color: "#47ABE8" },
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{ id: "E", group: "primary", label: "Klasse E", detail: "B + V + N + E", parts: ["B", "V", "N", "E"], color: "#FE756C" },
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{ id: "A", group: "primary", label: "Klasse A", detail: "B + V + N + E + A", parts: ["B", "V", "N", "E", "A"], color: "#3BB583" },
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{ id: "N-E", group: "upgrade", label: "N → E", detail: "Technik E", parts: ["E"], color: "#FE756C" },
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{ id: "N-A", group: "upgrade", label: "N → A", detail: "Technik E + A", parts: ["E", "A"], color: "#3BB583" },
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{ id: "E-A", group: "upgrade", label: "E → A", detail: "Technik A", parts: ["A"], color: "#3BB583" }
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];
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function normalizeCatalog(rawCatalog, metadata, questionIndex) {
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var questions = {};
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var partForSection = { 1: "B", 2: "V" };
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var partForClass = { "1": "N", "2": "E", "3": "A" };
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function pictureId(value) {
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return value ? String(value) : "";
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}
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function walk(section, sectionIndex, category) {
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(section.questions || []).forEach(function (question) {
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var part = sectionIndex === 0
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? partForClass[String(question.class)]
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: partForSection[sectionIndex];
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if (!part) return;
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var questionMetadata = metadata[question.number] || {};
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questions[question.number] = {
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id: question.number,
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part: part,
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category: category.slice(),
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question: question.question,
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layout: questionMetadata.layout || "default",
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picture: pictureId(questionMetadata.picture_question),
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answers: ["a", "b", "c", "d"].map(function (letter) {
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return {
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text: question["answer_" + letter] || "",
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picture: pictureId(questionMetadata["picture_" + letter])
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};
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}),
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hasSolution: Boolean(questionIndex[question.number] && questionIndex[question.number].has_solution)
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};
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});
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(section.sections || []).forEach(function (child, childIndex) {
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walk(child, sectionIndex, category.concat(childIndex));
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});
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}
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(rawCatalog.sections || []).forEach(function (section, sectionIndex) {
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walk(section, sectionIndex, []);
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});
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return questions;
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}
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function shuffled(values) {
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var result = values.slice();
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for (var i = result.length - 1; i > 0; i -= 1) {
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var j = Math.floor(Math.random() * (i + 1));
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var tmp = result[i];
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result[i] = result[j];
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result[j] = tmp;
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}
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return result;
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}
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function buildCategoryTree(pool) {
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var root = { children: new Map(), items: [], size: 0 };
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pool.forEach(function (item) {
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var node = root;
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node.size += 1;
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(item.category || []).forEach(function (categoryPart) {
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if (!node.children.has(categoryPart)) {
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node.children.set(categoryPart, { children: new Map(), items: [], size: 0 });
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}
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node = node.children.get(categoryPart);
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node.size += 1;
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});
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node.items.push(item);
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});
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return root;
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}
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function allocateQuotas(children, quota, totalSize) {
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var allocations = children.map(function (child) {
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var target = quota * child.size / totalSize;
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return { child: child, quota: Math.floor(target), fraction: target - Math.floor(target) };
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});
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var assigned = allocations.reduce(function (sum, allocation) { return sum + allocation.quota; }, 0);
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while (assigned < quota) {
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var candidates = allocations.filter(function (allocation) {
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return allocation.quota < allocation.child.size;
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});
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var weight = candidates.reduce(function (sum, allocation) { return sum + allocation.fraction; }, 0);
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var selected;
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if (weight <= 0) {
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selected = candidates[Math.floor(Math.random() * candidates.length)];
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} else {
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var draw = Math.random() * weight;
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selected = candidates[candidates.length - 1];
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for (var i = 0; i < candidates.length; i += 1) {
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draw -= candidates[i].fraction;
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if (draw <= 0) {
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selected = candidates[i];
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break;
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}
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}
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}
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selected.quota += 1;
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selected.fraction = 0;
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assigned += 1;
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}
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return allocations;
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}
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function pickFromTree(node, quota) {
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if (quota <= 0) return [];
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if (node.children.size === 0) return shuffled(node.items).slice(0, quota);
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var allocations = allocateQuotas(Array.from(node.children.values()), quota, node.size);
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var result = [];
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allocations.forEach(function (allocation) {
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result = result.concat(pickFromTree(allocation.child, allocation.quota));
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});
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return shuffled(result);
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}
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function balancedSample(pool, count) {
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if (!Array.isArray(pool) || pool.length < count) {
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throw new Error("Für diesen Prüfungsteil stehen nicht genügend Fragen zur Verfügung.");
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}
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return pickFromTree(buildCategoryTree(pool), count);
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}
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function renderMathSoon(VueApi) {
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VueApi.nextTick(function () {
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if (typeof window.renderFiftyOhmMath !== "function") return;
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window.renderFiftyOhmMath(document.getElementById("exam-simulator"));
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});
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}
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var app = Vue.createApp({
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setup: function () {
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var ref = Vue.ref;
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var computed = Vue.computed;
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var watch = Vue.watch;
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var onMounted = Vue.onMounted;
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var onBeforeUnmount = Vue.onBeforeUnmount;
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var loading = ref(true);
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var loadError = ref("");
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var catalog = ref({});
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var altTexts = Vue.reactive({});
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var requestedAltTexts = new Set();
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var session = ref(null);
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var view = ref("exam");
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var reviewPartIndex = ref(null);
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var now = ref(Date.now());
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var timerId = null;
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var catalogLoadHandler = null;
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var headerObserver = null;
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var primaryChoices = computed(function () {
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return EXAM_CHOICES.filter(function (choice) { return choice.group === "primary"; });
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});
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var upgradeChoices = computed(function () {
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return EXAM_CHOICES.filter(function (choice) { return choice.group === "upgrade"; });
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});
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var currentChoice = computed(function () {
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if (!session.value) return null;
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return EXAM_CHOICES.find(function (choice) { return choice.id === session.value.choiceId; });
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});
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var displayedPartIndex = computed(function () {
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return reviewPartIndex.value === null ? session.value.currentPart : reviewPartIndex.value;
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});
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var currentPart = computed(function () {
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if (!session.value) return null;
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return session.value.parts[displayedPartIndex.value];
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});
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var currentPartDefinition = computed(function () {
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if (!currentPart.value) return null;
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return PART_DEFINITIONS[currentPart.value.code];
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});
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var remainingSeconds = computed(function () {
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if (!currentPart.value || currentPart.value.status !== "running") return 0;
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if (currentPart.value.paused) return currentPart.value.pausedRemainingSeconds;
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return Math.max(0, Math.ceil((currentPart.value.deadline - now.value) / 1000));
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});
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var formattedTime = computed(function () {
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var minutes = Math.floor(remainingSeconds.value / 60);
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var seconds = remainingSeconds.value % 60;
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return String(minutes).padStart(2, "0") + ":" + String(seconds).padStart(2, "0");
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});
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var answeredCount = computed(function () {
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if (!currentPart.value) return 0;
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return currentPart.value.questions.filter(function (question) { return question.selected !== null; }).length;
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});
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var hasNextPart = computed(function () {
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if (!session.value) return false;
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return session.value.currentPart < session.value.parts.length - 1;
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});
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var isReviewing = computed(function () { return reviewPartIndex.value !== null; });
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function evaluatedParts() {
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return session.value.parts.filter(function (part) { return part.status === "evaluated"; });
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}
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var overallState = computed(function () {
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if (session.value.parts.some(function (part) { return part.status !== "evaluated"; })) return "incomplete";
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var failed = session.value.parts.filter(function (part) { return part.score < 19; });
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if (failed.length === 0) return "passed";
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if (failed.length === 1 && failed[0].score >= 17) return "oral";
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return "failed";
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});
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var overallAlertClass = computed(function () {
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return { passed: "alert-success", oral: "alert-warning", failed: "alert-danger", incomplete: "alert-danger" }[overallState.value];
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});
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var overallIcon = computed(function () {
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return { passed: "verified", oral: "record_voice_over", failed: "cancel", incomplete: "stop_circle" }[overallState.value];
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});
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var overallTitle = computed(function () {
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return { passed: "Prüfung bestanden", oral: "Mündliche Nachprüfung möglich", failed: "Prüfung nicht bestanden", incomplete: "Prüfung vorzeitig beendet" }[overallState.value];
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});
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var overallText = computed(function () {
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if (overallState.value === "passed") return "Gratulation! Du hast jeden Prüfungsteil mit mindestens 19 Punkten bestanden.";
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if (overallState.value === "oral") return "In genau einem Prüfungsteil wurden 17 oder 18 Punkte erreicht; nach den Prüfungsregeln kann eine mündliche Nachprüfung möglich sein.";
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if (overallState.value === "failed") return "Mindestens ein Prüfungsteil wurde nicht bestanden.";
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return evaluatedParts().length + " von " + session.value.parts.length + " Prüfungsteilen wurden abgeschlossen.";
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});
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function questionData(questionState) {
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return catalog.value[questionState.id];
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}
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function padNumber(number) {
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return String(number).padStart(2, "0");
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}
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function pictureAlt(picture, fallback) {
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return altTexts[picture] || fallback;
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}
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function loadAltText(picture) {
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if (!picture || requestedAltTexts.has(picture)) return;
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requestedAltTexts.add(picture);
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fetch("pictures/" + encodeURIComponent(picture) + ".txt")
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.then(function (response) {
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if (!response.ok) return "";
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return response.text();
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})
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.then(function (description) {
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if (description && description.trim()) altTexts[picture] = description.trim();
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})
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.catch(function () { /* the generic alternative text remains available */ });
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}
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function loadPartAltTexts(part) {
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if (!part) return;
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part.questions.forEach(function (questionState) {
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var question = questionData(questionState);
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if (!question) return;
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loadAltText(question.picture);
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question.answers.forEach(function (answer) { loadAltText(answer.picture); });
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});
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}
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function createPart(code) {
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var picked = balancedSample(Object.values(catalog.value).filter(function (question) {
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return question.part === code;
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}), QUESTION_COUNT);
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return {
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code: code,
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status: "pending",
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deadline: null,
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paused: false,
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pausedRemainingSeconds: null,
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score: null,
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autoSubmitted: false,
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questions: picked.map(function (question) {
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return { id: question.id, order: shuffled([0, 1, 2, 3]), selected: null, history: [] };
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})
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};
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}
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function activatePart(part) {
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part.status = "running";
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part.deadline = Date.now() + PART_DEFINITIONS[part.code].minutes * 60 * 1000;
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part.paused = false;
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part.pausedRemainingSeconds = null;
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now.value = Date.now();
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}
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function toggleTimer() {
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var part = currentPart.value;
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if (!part || part.status !== "running") return;
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if (part.paused) {
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part.deadline = Date.now() + part.pausedRemainingSeconds * 1000;
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part.pausedRemainingSeconds = null;
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part.paused = false;
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now.value = Date.now();
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return;
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}
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var seconds = remainingSeconds.value;
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if (seconds <= 0) {
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submitPart(true);
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return;
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}
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part.pausedRemainingSeconds = seconds;
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part.paused = true;
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part.deadline = null;
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}
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function startExam(choice) {
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try {
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var parts = choice.parts.map(createPart);
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activatePart(parts[0]);
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session.value = {
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version: STORAGE_VERSION,
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choiceId: choice.id,
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currentPart: 0,
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startedAt: Date.now(),
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parts: parts
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};
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view.value = "exam";
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reviewPartIndex.value = null;
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renderMathSoon(Vue);
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} catch (error) {
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loadError.value = error.message;
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}
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}
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function selectAnswer(questionIndex, answerIndex) {
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if (currentPart.value.status !== "running" || currentPart.value.paused) return;
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var question = currentPart.value.questions[questionIndex];
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if (question.selected === answerIndex) return;
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var firstAnswer = question.selected === null;
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question.selected = answerIndex;
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question.history.push(answerIndex);
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if (firstAnswer && questionIndex < currentPart.value.questions.length - 1) {
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window.setTimeout(function () { scrollToQuestion(questionIndex + 1); }, 150);
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}
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}
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function answerMark(questionIndex, answerIndex) {
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var question = currentPart.value.questions[questionIndex];
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if (question.selected === answerIndex) {
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var restored = question.history.slice(0, -1).indexOf(answerIndex) !== -1;
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return '<span class="answer-mark-symbol' + (restored ? " answer-mark-restored" : "") + '">×</span>';
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}
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if (question.history.indexOf(answerIndex) !== -1) {
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return '<span class="answer-mark-symbol">=</span>';
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}
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return "";
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}
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function answerCellClass(questionIndex, answerIndex) {
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if (currentPart.value.status === "running") return "";
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var question = currentPart.value.questions[questionIndex];
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var sourceIndex = question.order[answerIndex];
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if (question.selected === answerIndex && sourceIndex === 0) return "answer-cell-correct";
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if (question.selected === answerIndex) return "answer-cell-wrong";
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if (sourceIndex === 0) return "answer-cell-solution";
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return "";
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}
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function questionAnswerClass(questionIndex, answerIndex) {
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var question = currentPart.value.questions[questionIndex];
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if (currentPart.value.status === "running") {
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return question.selected === answerIndex ? "exam-answer-selected" : "";
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}
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var sourceIndex = question.order[answerIndex];
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if (sourceIndex === 0) return "correct";
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if (question.selected === answerIndex) return "wrong";
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return "";
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}
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function submitPart(autoSubmitted) {
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if (!session.value || currentPart.value.status !== "running") return;
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var score = currentPart.value.questions.reduce(function (sum, question) {
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return sum + (question.selected !== null && question.order[question.selected] === 0 ? 1 : 0);
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}, 0);
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currentPart.value.score = score;
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currentPart.value.status = "evaluated";
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currentPart.value.deadline = null;
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currentPart.value.paused = false;
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currentPart.value.pausedRemainingSeconds = null;
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currentPart.value.autoSubmitted = Boolean(autoSubmitted);
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renderMathSoon(Vue);
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window.scrollTo({ top: 0, behavior: "smooth" });
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}
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function requestSubmit() {
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var unanswered = QUESTION_COUNT - answeredCount.value;
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var text = unanswered > 0
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? "Du hast " + unanswered + " Fragen nicht beantwortet. Möchtest du den Prüfungsteil trotzdem abgeben?"
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: "Möchtest du diesen Prüfungsteil jetzt verbindlich abgeben?";
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if (window.confirm(text)) submitPart(false);
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}
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function startNextPart() {
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var nextIndex = session.value.currentPart + 1;
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var nextPart = session.value.parts[nextIndex];
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if (!nextPart) {
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showSummary();
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return;
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}
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session.value.currentPart = nextIndex;
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reviewPartIndex.value = null;
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view.value = "exam";
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activatePart(nextPart);
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renderMathSoon(Vue);
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window.scrollTo({ top: 0, behavior: "smooth" });
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}
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function finishExamEarly() {
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if (!window.confirm("Möchtest du die Prüfung wirklich hier beenden? Nicht bearbeitete Teile gelten dann als nicht abgeschlossen.")) return;
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showSummary();
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}
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function showSummary() {
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reviewPartIndex.value = null;
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view.value = "summary";
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window.scrollTo({ top: 0, behavior: "smooth" });
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}
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function reviewPart(index) {
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reviewPartIndex.value = index;
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view.value = "exam";
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renderMathSoon(Vue);
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window.scrollTo({ top: 0, behavior: "smooth" });
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}
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function clearStoredSession() {
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try { window.localStorage.removeItem(STORAGE_KEY); } catch (error) { /* storage can be unavailable */ }
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}
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function resetExam() {
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clearStoredSession();
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session.value = null;
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view.value = "exam";
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reviewPartIndex.value = null;
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window.scrollTo({ top: 0, behavior: "smooth" });
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}
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function abortExam() {
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if (!window.confirm("Möchtest du diese Simulation abbrechen? Der gespeicherte Prüfungsstand wird gelöscht.")) return;
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resetExam();
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}
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function newExam() {
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resetExam();
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}
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function scrollToQuestion(index) {
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var element = document.getElementById("exam-question-" + index);
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if (element) element.scrollIntoView({ behavior: "smooth", block: "start" });
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}
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function resultLabel(part) {
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if (part.score >= 19) return "Bestanden";
|
||
if (part.score >= 17) return "Nachprüfung möglich";
|
||
return "Nicht bestanden";
|
||
}
|
||
|
||
function resultAlertClass(part) {
|
||
if (part.score >= 19) return "alert-success";
|
||
if (part.score >= 17) return "alert-warning";
|
||
return "alert-danger";
|
||
}
|
||
|
||
function resultBadgeClass(part) {
|
||
if (part.score >= 19) return "text-bg-success";
|
||
if (part.score >= 17) return "text-bg-warning";
|
||
return "text-bg-danger";
|
||
}
|
||
|
||
function resultIcon(part) {
|
||
if (part.score >= 19) return "check_circle";
|
||
if (part.score >= 17) return "record_voice_over";
|
||
return "cancel";
|
||
}
|
||
|
||
function resultDescription(part) {
|
||
var prefix = part.autoSubmitted ? "Die Zeit ist abgelaufen und der Prüfungsteil wurde automatisch abgegeben. " : "";
|
||
if (part.score >= 19) return prefix + "Die erforderlichen 19 Punkte wurden erreicht.";
|
||
if (part.score >= 17) return prefix + "Mit 17 oder 18 Punkten kann nach den Prüfungsregeln eine mündliche Nachprüfung möglich sein.";
|
||
return prefix + "Die erforderlichen 19 Punkte wurden nicht erreicht.";
|
||
}
|
||
|
||
function restoreSession() {
|
||
try {
|
||
var raw = window.localStorage.getItem(STORAGE_KEY);
|
||
if (!raw) return;
|
||
var stored = JSON.parse(raw);
|
||
if (!stored || stored.version !== STORAGE_VERSION || !stored.session) {
|
||
clearStoredSession();
|
||
return;
|
||
}
|
||
var choice = EXAM_CHOICES.find(function (item) { return item.id === stored.session.choiceId; });
|
||
var valid = choice && stored.session.parts.every(function (part) {
|
||
return Array.isArray(part.questions) && part.questions.length === QUESTION_COUNT && part.questions.every(function (question) {
|
||
return Boolean(catalog.value[question.id]);
|
||
});
|
||
});
|
||
if (!valid) {
|
||
clearStoredSession();
|
||
return;
|
||
}
|
||
stored.session.parts.forEach(function (part) {
|
||
part.paused = Boolean(part.paused);
|
||
if (!part.paused) part.pausedRemainingSeconds = null;
|
||
});
|
||
session.value = stored.session;
|
||
view.value = stored.view === "summary" ? "summary" : "exam";
|
||
if (session.value.parts[session.value.currentPart].status === "running" &&
|
||
!session.value.parts[session.value.currentPart].paused &&
|
||
session.value.parts[session.value.currentPart].deadline <= Date.now()) {
|
||
submitPart(true);
|
||
}
|
||
} catch (error) {
|
||
clearStoredSession();
|
||
}
|
||
}
|
||
|
||
watch([session, view], function () {
|
||
if (!session.value) return;
|
||
try {
|
||
window.localStorage.setItem(STORAGE_KEY, JSON.stringify({
|
||
version: STORAGE_VERSION,
|
||
session: session.value,
|
||
view: view.value
|
||
}));
|
||
} catch (error) { /* simulator remains usable without persistence */ }
|
||
}, { deep: true });
|
||
|
||
watch(currentPart, function (part) {
|
||
loadPartAltTexts(part);
|
||
});
|
||
|
||
watch(remainingSeconds, function (seconds) {
|
||
if (session.value && currentPart.value && currentPart.value.status === "running" &&
|
||
!currentPart.value.paused && seconds <= 0) submitPart(true);
|
||
});
|
||
|
||
function loadCatalog() {
|
||
Promise.all([
|
||
fetch("assets/fragenkatalog.json"),
|
||
fetch("assets/metadata.json"),
|
||
fetch("assets/question_index.json")
|
||
])
|
||
.then(function (responses) {
|
||
var names = ["Fragenkatalog", "Metadaten", "Fragenindex"];
|
||
responses.forEach(function (response, index) {
|
||
if (!response.ok) throw new Error(names[index] + " nicht gefunden (HTTP " + response.status + ").");
|
||
});
|
||
return Promise.all(responses.map(function (response) { return response.json(); }));
|
||
})
|
||
.then(function (data) {
|
||
catalog.value = normalizeCatalog(data[0], data[1] || {}, data[2] || {});
|
||
if (Object.keys(catalog.value).length === 0) throw new Error("Der Fragenkatalog ist leer.");
|
||
restoreSession();
|
||
loading.value = false;
|
||
renderMathSoon(Vue);
|
||
})
|
||
.catch(function (error) {
|
||
loadError.value = error.message || "Unbekannter Ladefehler";
|
||
loading.value = false;
|
||
});
|
||
}
|
||
|
||
function updateHeaderHeight() {
|
||
var header = document.querySelector(".fiftyohm-layout-outer-head");
|
||
if (!header) return;
|
||
document.documentElement.style.setProperty("--exam-header-height", header.offsetHeight + "px");
|
||
}
|
||
|
||
onMounted(function () {
|
||
document.body.classList.add("exam-simulator-page");
|
||
updateHeaderHeight();
|
||
if (typeof window.ResizeObserver === "function") {
|
||
headerObserver = new window.ResizeObserver(updateHeaderHeight);
|
||
headerObserver.observe(document.querySelector(".fiftyohm-layout-outer-head"));
|
||
}
|
||
if (document.readyState === "loading") {
|
||
catalogLoadHandler = function () { window.setTimeout(loadCatalog, 0); };
|
||
document.addEventListener("DOMContentLoaded", catalogLoadHandler, { once: true });
|
||
} else {
|
||
loadCatalog();
|
||
}
|
||
timerId = window.setInterval(function () { now.value = Date.now(); }, 1000);
|
||
});
|
||
|
||
onBeforeUnmount(function () {
|
||
if (timerId !== null) window.clearInterval(timerId);
|
||
if (catalogLoadHandler !== null) document.removeEventListener("DOMContentLoaded", catalogLoadHandler);
|
||
if (headerObserver !== null) headerObserver.disconnect();
|
||
document.documentElement.style.removeProperty("--exam-header-height");
|
||
document.body.classList.remove("exam-simulator-page");
|
||
});
|
||
|
||
return {
|
||
loading: loading,
|
||
loadError: loadError,
|
||
session: session,
|
||
view: view,
|
||
primaryChoices: primaryChoices,
|
||
upgradeChoices: upgradeChoices,
|
||
currentChoice: currentChoice,
|
||
currentPart: currentPart,
|
||
currentPartDefinition: currentPartDefinition,
|
||
displayedPartIndex: displayedPartIndex,
|
||
partDefinitions: PART_DEFINITIONS,
|
||
answerLabels: ANSWER_LABELS,
|
||
remainingSeconds: remainingSeconds,
|
||
formattedTime: formattedTime,
|
||
toggleTimer: toggleTimer,
|
||
answeredCount: answeredCount,
|
||
hasNextPart: hasNextPart,
|
||
isReviewing: isReviewing,
|
||
overallAlertClass: overallAlertClass,
|
||
overallState: overallState,
|
||
overallIcon: overallIcon,
|
||
overallTitle: overallTitle,
|
||
overallText: overallText,
|
||
padNumber: padNumber,
|
||
pictureAlt: pictureAlt,
|
||
questionData: questionData,
|
||
startExam: startExam,
|
||
selectAnswer: selectAnswer,
|
||
answerMark: answerMark,
|
||
answerCellClass: answerCellClass,
|
||
questionAnswerClass: questionAnswerClass,
|
||
requestSubmit: requestSubmit,
|
||
startNextPart: startNextPart,
|
||
finishExamEarly: finishExamEarly,
|
||
showSummary: showSummary,
|
||
reviewPart: reviewPart,
|
||
abortExam: abortExam,
|
||
newExam: newExam,
|
||
scrollToQuestion: scrollToQuestion,
|
||
resultLabel: resultLabel,
|
||
resultAlertClass: resultAlertClass,
|
||
resultBadgeClass: resultBadgeClass,
|
||
resultIcon: resultIcon,
|
||
resultDescription: resultDescription
|
||
};
|
||
}
|
||
});
|
||
|
||
app.mount("#exam-simulator");
|
||
})();
|