feat: add scheduled quiz notification task and enhance Quiz schema with scheduleId

- Introduced a new cron job in CronService to check for schedules with status WAITING_QUIZ and notify customers to complete their quizzes.
- Enhanced the Quiz schema by adding an optional 'scheduleId' argument to facilitate quiz retrieval based on specific schedules, improving user experience and data association.
- Updated role-based access control logic to ensure proper handling of quiz queries for customers and center mentors.

src/Quiz/quiz.schema.ts

@@ -151,6 +151,10 @@ export class QuizSchema extends PothosSchema {
             type: 'String',
             required: true,
           }),
+          scheduleId: t.arg({
+            type: 'String',
+            required: false,
+          }),
         },
         resolve: async (query, _root, args, ctx, _info) => {
           if (ctx.isSubscription) {
@@ -159,22 +163,42 @@ export class QuizSchema extends PothosSchema {
           if (!ctx.http.me) {
             throw new Error('Unauthorized')
           }
-          if (ctx.http.me.role !== Role.CENTER_MENTOR && ctx.http.me.role !== Role.CENTER_OWNER) {
-            throw new Error('Unauthorized')
+          // use case 1: center mentor or center owner
+          if (ctx.http.me.role === Role.CENTER_MENTOR || ctx.http.me.role === Role.CENTER_OWNER) {
+            const centerMentor = await this.prisma.centerMentor.findUnique({
+              where: { mentorId: ctx.http.me.id },
+            })
+            if (!centerMentor) {
+              throw new Error('Center mentor not found')
+            }
+            return await this.prisma.quiz.findMany({
+              ...query,
+              where: {
+                serviceId: args.serviceId,
+                centerMentorId: centerMentor.mentorId,
+              },
+            })
           }
-          const centerMentor = await this.prisma.centerMentor.findUnique({
-            where: { mentorId: ctx.http.me.id },
-          })
-          if (!centerMentor) {
-            throw new Error('Center mentor not found')
+
+          // use case 2: Customer
+          if (ctx.http.me.role === Role.CUSTOMER) {
+            // if scheduleId is provided, return quizzes for the schedule
+            if (args.scheduleId) {
+              const schedule = await this.prisma.schedule.findUnique({
+                where: { id: args.scheduleId },
+              })
+              if (!schedule) {
+                throw new Error('Schedule not found')
+              }
+              return await this.prisma.quiz.findMany({
+                ...query,
+                where: {
+                  serviceId: args.serviceId,
+                },
+              })
+            }
+            throw new Error('Schedule ID is required')
           }
-          return await this.prisma.quiz.findMany({
-            ...query,
-            where: {
-              serviceId: args.serviceId,
-              centerMentorId: centerMentor.mentorId,
-            },
-          })
         },
       }),
     }))