setting up test functionality

lib/daily-quiz-storage.ts

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+import {
+  computeAvatarCondition,
+  normalizeDailyQuizAnswers,
+  type AvatarCondition,
+  type DailyQuizAnswers,
+  type DailyQuizSubmission,
+} from "@/lib/avatar-state";
+import { notifyHabitPetDataUpdated } from "@/lib/app-events";
+const STORAGE_KEY = "habit-pet-daily-quiz";
+
+export function getTodayDateKey(date = new Date()) {
+  return date.toISOString().slice(0, 10);
+}
+
+function normalizeSubmission(
+  submission: DailyQuizSubmission,
+): DailyQuizSubmission {
+  const answers = normalizeDailyQuizAnswers(submission.answers);
+
+  return {
+    ...submission,
+    answers,
+    condition: computeAvatarCondition(answers),
+  };
+}
+
+export function getDailyQuizSubmission(): DailyQuizSubmission | null {
+  if (typeof window === "undefined") {
+    return null;
+  }
+
+  const raw = window.localStorage.getItem(STORAGE_KEY);
+
+  if (!raw) {
+    return null;
+  }
+
+  try {
+    return normalizeSubmission(JSON.parse(raw) as DailyQuizSubmission);
+  } catch {
+    return null;
+  }
+}
+
+export function hasCompletedDailyQuizToday() {
+  const submission = getDailyQuizSubmission();
+  return submission?.date === getTodayDateKey();
+}
+
+export function saveDailyQuizSubmission(
+  answers: DailyQuizAnswers,
+): DailyQuizSubmission {
+  const submission: DailyQuizSubmission = {
+    date: getTodayDateKey(),
+    answers,
+    condition: computeAvatarCondition(answers),
+  };
+
+  window.localStorage.setItem(STORAGE_KEY, JSON.stringify(submission));
+
+  notifyHabitPetDataUpdated();
+
+  return submission;
+}
+
+export function getAvatarConditionForToday(): AvatarCondition | null {
+  const submission = getDailyQuizSubmission();
+
+  if (!submission || submission.date !== getTodayDateKey()) {
+    return null;
+  }
+
+  return submission.condition;
+}