502 lines
20 KiB
JavaScript
502 lines
20 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 = 1;
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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", formLabel: "Betriebliche Kenntnisse", minutes: 45 },
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V: { label: "Kenntnisse von Vorschriften", formLabel: "Kenntnisse von Vorschriften", minutes: 45 },
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N: { label: "Technische Kenntnisse Klasse N", formLabel: "Technische Kenntnisse Klasse N", minutes: 45 },
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E: { label: "Technische Kenntnisse Klasse E", formLabel: "Technische Kenntnisse Klasse E", minutes: 45 },
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A: { label: "Technische Kenntnisse Klasse A", formLabel: "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", shortLabel: "N", label: "Prüfung Klasse N", parts: ["B", "V", "N"], color: "#47ABE8" },
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{ id: "E", group: "primary", shortLabel: "N + E", label: "Prüfung Klasse E", parts: ["B", "V", "N", "E"], color: "#FE756C" },
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{ id: "A", group: "primary", shortLabel: "N + E + A", label: "Prüfung Klasse A", parts: ["B", "V", "N", "E", "A"], color: "#3BB583" },
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{ id: "N-E", group: "upgrade", shortLabel: "N → E", label: "Aufstockung von N auf E", parts: ["E"], color: "#FE756C" },
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{ id: "E-A", group: "upgrade", shortLabel: "E → A", label: "Aufstockung von E auf A", parts: ["A"], color: "#3BB583" },
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{ id: "N-A", group: "upgrade", shortLabel: "N → A", label: "Aufstockung von N auf A", parts: ["E", "A"], color: "#3BB583" }
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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") {
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window.renderFiftyOhmMath(document.getElementById("exam-simulator"));
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}
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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 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 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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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 overallClass = computed(function () { return "result-" + overallState.value; });
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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 "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 partSummary(parts) {
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return parts.join(" + ");
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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 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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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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now.value = Date.now();
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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") return;
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var question = currentPart.value.questions[questionIndex];
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if (question.selected === answerIndex) return;
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question.selected = answerIndex;
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question.history.push(answerIndex);
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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 !== "evaluated") 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.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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if (!hasNextPart.value) return;
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session.value.currentPart += 1;
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activatePart(session.value.parts[session.value.currentPart]);
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reviewPartIndex.value = null;
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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 abortExam() {
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if (!window.confirm("Möchtest du diese Probeprüfung abbrechen? Der gespeicherte Prüfungsstand wird gelöscht.")) return;
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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 newExam() {
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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 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";
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if (part.score >= 17) return "Nachprüfung möglich";
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return "Nicht bestanden";
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}
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function resultClass(part) {
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if (part.score >= 19) return "result-passed";
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if (part.score >= 17) return "result-oral";
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return "result-failed";
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}
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function resultIcon(part) {
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if (part.score >= 19) return "check_circle";
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if (part.score >= 17) return "record_voice_over";
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return "cancel";
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}
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function resultDescription(part) {
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var prefix = part.autoSubmitted ? "Die Zeit ist abgelaufen und der Prüfungsteil wurde automatisch abgegeben. " : "";
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if (part.score >= 19) return prefix + "Die erforderlichen 19 Punkte wurden erreicht.";
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if (part.score >= 17) return prefix + "Mit 17 oder 18 Punkten kann nach den Prüfungsregeln eine mündliche Nachprüfung möglich sein.";
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return prefix + "Die erforderlichen 19 Punkte wurden nicht erreicht.";
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}
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function restoreSession() {
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try {
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var raw = window.localStorage.getItem(STORAGE_KEY);
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if (!raw) return;
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var stored = JSON.parse(raw);
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if (!stored || stored.version !== STORAGE_VERSION || !stored.session) return;
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var choice = EXAM_CHOICES.find(function (item) { return item.id === stored.session.choiceId; });
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var valid = choice && stored.session.parts.every(function (part) {
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return Array.isArray(part.questions) && part.questions.length === QUESTION_COUNT && part.questions.every(function (question) {
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return Boolean(catalog.value[question.id]);
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});
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});
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if (!valid) {
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clearStoredSession();
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return;
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}
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session.value = stored.session;
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view.value = stored.view === "summary" ? "summary" : "exam";
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if (session.value.parts[session.value.currentPart].status === "running" &&
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session.value.parts[session.value.currentPart].deadline <= Date.now()) {
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submitPart(true);
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}
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} catch (error) {
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clearStoredSession();
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}
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}
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watch([session, view], function () {
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if (!session.value) return;
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try {
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window.localStorage.setItem(STORAGE_KEY, JSON.stringify({
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version: STORAGE_VERSION,
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session: session.value,
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view: view.value
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}));
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} catch (error) { /* simulator remains usable without persistence */ }
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}, { deep: true });
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watch(remainingSeconds, function (seconds) {
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if (session.value && currentPart.value && currentPart.value.status === "running" && seconds <= 0) submitPart(true);
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});
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onMounted(function () {
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fetch("assets/exam-questions.json")
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.then(function (response) {
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if (!response.ok) throw new Error("Fragenkatalog nicht gefunden (HTTP " + response.status + ").");
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return response.json();
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})
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.then(function (data) {
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catalog.value = data.questions || {};
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if (Object.keys(catalog.value).length === 0) throw new Error("Der Fragenkatalog ist leer.");
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restoreSession();
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loading.value = false;
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renderMathSoon(Vue);
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})
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.catch(function (error) {
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loadError.value = error.message || "Unbekannter Ladefehler";
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loading.value = false;
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});
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timerId = window.setInterval(function () { now.value = Date.now(); }, 1000);
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});
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onBeforeUnmount(function () {
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if (timerId !== null) window.clearInterval(timerId);
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});
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return {
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loading: loading,
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loadError: loadError,
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session: session,
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view: view,
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primaryChoices: primaryChoices,
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upgradeChoices: upgradeChoices,
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currentChoice: currentChoice,
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currentPart: currentPart,
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currentPartDefinition: currentPartDefinition,
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displayedPartIndex: displayedPartIndex,
|
||
partDefinitions: PART_DEFINITIONS,
|
||
answerLabels: ANSWER_LABELS,
|
||
remainingSeconds: remainingSeconds,
|
||
formattedTime: formattedTime,
|
||
answeredCount: answeredCount,
|
||
hasNextPart: hasNextPart,
|
||
isReviewing: isReviewing,
|
||
overallClass: overallClass,
|
||
overallIcon: overallIcon,
|
||
overallTitle: overallTitle,
|
||
overallText: overallText,
|
||
partSummary: partSummary,
|
||
padNumber: padNumber,
|
||
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,
|
||
resultClass: resultClass,
|
||
resultIcon: resultIcon,
|
||
resultDescription: resultDescription
|
||
};
|
||
}
|
||
});
|
||
|
||
app.mount("#exam-simulator");
|
||
})();
|