Consolidate cache loading code (#108)

src/lib/cache.ts

@@ -59,54 +59,43 @@ export const loadGradebook = async () => {
 	gradebookLoaded.set(true);
 };
 
-export const loadAttendance = async () => {
-	attendanceLoaded.set(false);
-
-	writeCacheToStore('attendance', attendance);
+const loadUsingCache = async <T>(key: string, store: Writable<T>, indicator: Writable<boolean>, retrievalFunc: () => Promise<T>) => {
+	indicator.set(false);
 
-	const attendanceRecord = await get(studentAccount)?.attendance();
+	writeCacheToStore(key, store);
 
-	attendance.set(attendanceRecord);
-	localStorage.setItem('attendance', JSON.stringify(attendanceRecord));
+	const record = await retrievalFunc();
 
-	attendanceLoaded.set(true);
-};
+	store.set(record);
+	localStorage.setItem(key, JSON.stringify(record));
 
-export const loadStudentInfo = async () => {
-	studentInfoLoaded.set(false);
+	indicator.set(true);
+}
 
-	writeCacheToStore('studentInfo', studentInfo);
+export const loadAttendance = async () => {
+	const acc = get(studentAccount);
+	if (!acc) return;
 
-	const studentInfoRecord = await get(studentAccount)?.studentInfo();
+	loadUsingCache('attendance', attendance, attendanceLoaded, acc.attendance.bind(acc));
+};
 
-	studentInfo.set(studentInfoRecord);
-	localStorage.setItem('studentInfo', JSON.stringify(studentInfoRecord));
+export const loadStudentInfo = async () => {
+	const acc = get(studentAccount);
+	if (!acc) return;
 
-	studentInfoLoaded.set(true);
+	loadUsingCache('studentInfo', studentInfo, studentInfoLoaded, acc.studentInfo.bind(acc));
 };
 
 export const loadDocuments = async () => {
-	documentsLoaded.set(false);
+	const acc = get(studentAccount);
+	if (!acc) return;
 
-	writeCacheToStore('documents', documents);
-
-	const documentsRecord = await get(studentAccount)?.documents();
-
-	documents.set(documentsRecord);
-	localStorage.setItem('documents', JSON.stringify(documentsRecord));
-
-	documentsLoaded.set(true);
+	loadUsingCache('documents', documents, documentsLoaded, acc.documents.bind(acc));
 };
 
 export const loadMailData = async () => {
-	mailDataLoaded.set(false);
-
-	writeCacheToStore('mailData', mailData);
-
-	const mailDataRecord = await get(studentAccount)?.mailData();
-
-	mailData.set(mailDataRecord);
-	localStorage.setItem('mailData', JSON.stringify(mailDataRecord));
+	const acc = get(studentAccount);
+	if (!acc) return;
 
-	mailDataLoaded.set(true);
+	loadUsingCache('mailData', mailData, mailDataLoaded, acc.mailData.bind(acc));
 };

src/lib/synergy.ts

@@ -4,7 +4,7 @@ import type { AuthToken } from '$lib/types/AuthToken';
 import type { Documents } from '$lib/types/Documents';
 import type { Gradebook } from '$lib/types/Gradebook';
 import type { MailData } from '$lib/types/MailData';
-import type { ReportCard, ReportCardNotFound } from '$lib/types/ReportCard';
+import type { ReportCard } from '$lib/types/ReportCard';
 import type { StudentInfo } from '$lib/types/StudentInfo';
 import { XMLBuilder, XMLParser } from 'fast-xml-parser';