feat(frontend): nieuwe "cancel" knop bij create assignment

frontend/src/utils/assignment-rules.ts

@@ -4,7 +4,7 @@
  * Ensures that the title is not empty.
  */
 export const assignmentTitleRules = [
-    (value: string) => {
+    (value: string): string | boolean => {
         if (value?.length >= 1) return true;  // Title must not be empty
         return 'Title cannot be empty.';
     },
@@ -16,7 +16,7 @@ export const assignmentTitleRules = [
  * Ensures that a valid learning path is selected.
  */
 export const learningPathRules = [
-    (value: { hruid: string; title: string }) => {
+    (value: { hruid: string; title: string }): string | boolean => {
         if (value && value.hruid) {
             return true;  // Valid if hruid is present
         }
@@ -30,7 +30,7 @@ export const learningPathRules = [
  * Ensures that at least one class is selected.
  */
 export const classRules = [
-    (value: string) => {
+    (value: string): string | boolean => {
         if (value) return true;
         return 'You must select at least one class.';
     },
@@ -42,7 +42,7 @@ export const classRules = [
  * Ensures that a valid deadline is selected and is in the future.
  */
 export const deadlineRules = [
-    (value: string) => {
+    (value: string): string | boolean => {
         if (!value) return "You must set a deadline.";
 
         const selectedDateTime = new Date(value);
@@ -57,7 +57,7 @@ export const deadlineRules = [
 ];
 
 export const descriptionRules = [
-    (value: string) => {
+    (value: string): string | boolean => {
         if (!value || value.trim() === "") return "Description cannot be empty.";
         return true;
     },

frontend/src/utils/tempData.ts

@@ -1,24 +1,24 @@
 // TODO : temp data until frontend controllers are ready
-type Teacher = {
+interface Teacher {
     username: string;
     firstName: string;
     lastName: string;
-    classes: Array<Class>;
-};
+    classes: Class[];
+}
 
-type Student = {
+interface Student {
     username: string;
     firstName: string;
     lastName: string;
-    classes: Array<Class>;
-};
+    classes: Class[];
+}
 
-type Class = {
+interface Class {
     id: string;
     displayName: string;
-    teachers: Array<Teacher>;
-    students: Array<Student>;
-};
+    teachers: Teacher[];
+    students: Student[];
+}
 
 const student01: Student = {username: "id01", firstName: "Mark", lastName: "Knopfler", classes: []};
 const student02: Student = {username: "id02", firstName: "John", lastName: "Hiat", classes: []};
@@ -55,11 +55,11 @@ teacher01.classes = [class01];
 teacher02.classes = [class02];
 teacher03.classes = [class03];
 
-type Assignment = {
+interface Assignment {
     id: string;
     title: string;
     description: string;
-};
+}
 
 
 export const assignments: Assignment[] = Array.from({length: 4}, (_, i) => ({
@@ -100,4 +100,4 @@ export const assignments: Assignment[] = Array.from({length: 4}, (_, i) => ({
 }));
 
 
-export const classes: Array<Class> = [class01, class02, class03];
+export const classes: Class[] = [class01, class02, class03];