343 lines
10 KiB
TypeScript
343 lines
10 KiB
TypeScript
import crypto from 'crypto'
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import { Inject, Injectable, Logger } from '@nestjs/common'
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import { AnswerType, Role } from '@prisma/client'
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import { QuestionType } from '@prisma/client'
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import { Pothos, PothosRef, PothosSchema, SchemaBuilderToken } from '@smatch-corp/nestjs-pothos'
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import { Builder } from '../Graphql/graphql.builder'
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import { PrismaService } from '../Prisma/prisma.service'
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@Injectable()
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export class QuizSchema extends PothosSchema {
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constructor(
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@Inject(SchemaBuilderToken) private readonly builder: Builder,
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private readonly prisma: PrismaService,
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) {
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super()
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}
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// Types section
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@PothosRef()
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quiz() {
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return this.builder.prismaObject('Quiz', {
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fields: (t) => ({
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id: t.exposeID('id'),
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serviceId: t.exposeID('serviceId'),
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service: t.relation('service'),
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quizTitle: t.exposeString('quizTitle'),
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quizSynopsis: t.exposeString('quizSynopsis'),
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progressBarColor: t.exposeString('progressBarColor'),
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nrOfQuestions: t.exposeInt('nrOfQuestions'),
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questions: t.relation('questions'),
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createdAt: t.expose('createdAt', {
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type: 'DateTime',
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}),
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updatedAt: t.expose('updatedAt', {
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type: 'DateTime',
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}),
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}),
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})
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}
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@PothosRef()
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question() {
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return this.builder.prismaObject('Question', {
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fields: (t) => ({
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id: t.exposeID('id'),
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quizId: t.exposeID('quizId'),
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quiz: t.relation('quiz'),
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question: t.exposeString('question'),
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questionType: t.expose('questionType', {
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type: QuestionType,
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}),
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questionPic: t.exposeString('questionPic'),
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answerSelectionType: t.expose('answerSelectionType', {
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type: AnswerType,
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}),
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answers: t.exposeStringList('answers'),
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correctAnswer: t.field({
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type: this.correctAnswerObject(),
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resolve: (parent) => parent.correctAnswer,
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}),
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messageForCorrectAnswer: t.exposeString('messageForCorrectAnswer'),
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messageForIncorrectAnswer: t.exposeString('messageForIncorrectAnswer'),
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explanation: t.exposeString('explanation'),
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point: t.exposeInt('point'),
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createdAt: t.expose('createdAt', {
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type: 'DateTime',
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}),
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updatedAt: t.expose('updatedAt', {
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type: 'DateTime',
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}),
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}),
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})
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}
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@PothosRef()
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quizAttempt() {
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return this.builder.prismaObject('QuizAttempt', {
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fields: (t) => ({
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id: t.exposeID('id'),
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quizId: t.exposeID('quizId'),
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quiz: t.relation('quiz'),
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userId: t.exposeID('userId'),
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user: t.relation('user'),
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score: t.exposeInt('score'),
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questions: t.relation('questions'),
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answers: t.exposeStringList('answers'),
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createdAt: t.expose('createdAt', {
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type: 'DateTime',
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}),
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updatedAt: t.expose('updatedAt', {
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type: 'DateTime',
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}),
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}),
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})
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}
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@PothosRef()
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stringType() {
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return this.builder.objectRef('StringType')
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}
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@PothosRef()
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stringListType() {
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return this.builder.objectRef('StringListType')
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}
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@PothosRef()
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correctAnswerObject() {
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const StringType = this.builder.objectType(this.stringType(), {
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fields: (t) => ({
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value: t.string({
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resolve: (parent) => parent as string,
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}),
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}),
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})
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const StringListType = this.builder.objectType(this.stringListType(), {
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fields: (t) => ({
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items: t.stringList({
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resolve: (parent) => parent as string[],
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}),
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}),
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})
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return this.builder.unionType('CorrectAnswerObject', {
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types: [StringType, StringListType],
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resolveType: (value) => {
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return Array.isArray(value) ? StringListType : StringType
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},
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})
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}
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@Pothos()
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init(): void {
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this.builder.queryFields((t) => ({
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quiz: t.prismaField({
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type: this.quiz(),
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args: this.builder.generator.findUniqueArgs('Quiz'),
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resolve: async (query, _root, args, ctx, _info) => {
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if (ctx.isSubscription) {
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throw new Error('Subscription is not allowed')
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}
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if (!ctx.http.me) {
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throw new Error('Unauthorized')
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}
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return await this.prisma.quiz.findUnique({ ...query, where: { id: args.where.id } })
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},
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}),
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quizzes: t.prismaField({
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type: [this.quiz()],
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args: {
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serviceId: t.arg({
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type: 'String',
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required: true,
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}),
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scheduleId: t.arg({
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type: 'String',
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required: false,
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}),
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},
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resolve: async (query, _root, args, ctx, _info) => {
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if (ctx.isSubscription) {
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throw new Error('Subscription is not allowed')
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}
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if (!ctx.http.me) {
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throw new Error('Unauthorized')
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}
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// use case 1: customer
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if (ctx.http.me.role === Role.CUSTOMER) {
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// using pseudo random to get amount of quizzes based on userid as seed
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const random = getRandomWithSeed(
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parseInt(crypto.createHash('sha256').update(ctx.http.me.id).digest('hex'), 16),
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)
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if (!args.scheduleId) {
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throw new Error('Schedule ID is required')
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}
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// get schedule from scheduleId
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const schedule = await this.prisma.schedule.findUnique({
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where: { id: args.scheduleId },
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include: {
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managedService: true,
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},
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})
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if (!schedule) {
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throw new Error('Schedule not found')
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}
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// get centerMentorId from schedule
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const centerMentorId = schedule.managedService.mentorId
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if (!centerMentorId) {
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throw new Error('Center mentor not found')
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}
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const quizzes = await this.prisma.quiz.findMany({
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...query,
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where: {
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serviceId: args.serviceId,
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centerMentorId: centerMentorId,
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},
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})
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// get amount of questions using nrOfQuestions and random index based on random
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const randomIndex = quizzes.length > 0
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? Math.floor(random * quizzes.length)
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: 0
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const nrOfQuestions = quizzes[0]?.nrOfQuestions ?? 1
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const result = quizzes.slice(randomIndex, randomIndex + nrOfQuestions)
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return result
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}
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// use case 2: center mentor or center owner
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if (ctx.http.me.role === Role.CENTER_MENTOR || ctx.http.me.role === Role.CENTER_OWNER) {
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const centerMentor = await this.prisma.centerMentor.findUnique({
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where: { mentorId: ctx.http.me.id },
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})
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if (!centerMentor) {
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throw new Error('Center mentor not found')
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}
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return await this.prisma.quiz.findMany({
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...query,
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where: {
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serviceId: args.serviceId,
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centerMentorId: centerMentor.mentorId,
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},
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})
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}
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},
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}),
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}))
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this.builder.mutationFields((t) => ({
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createQuiz: t.prismaField({
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type: this.quiz(),
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args: {
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data: t.arg({
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type: this.builder.generator.getCreateInput('Quiz', ['id', 'centerMentorId', 'createdAt', 'updatedAt']),
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required: true,
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}),
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},
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resolve: async (query, _root, args, ctx, _info) => {
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if (ctx.isSubscription) {
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throw new Error('Subscription is not allowed')
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}
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if (!ctx.http.me) {
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throw new Error('Unauthorized')
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}
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if (!args.data) {
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throw new Error('Data is required')
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}
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if (!args.data.service?.connect?.id) {
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throw new Error('Service ID is required')
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}
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args.data.centerMentor = {
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connect: {
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mentorId: ctx.http.me.id,
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},
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}
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return await this.prisma.quiz.create({
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...query,
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data: {
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...args.data,
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},
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})
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},
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}),
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updateQuiz: t.prismaField({
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type: this.quiz(),
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args: {
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where: t.arg({
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type: this.builder.generator.getWhereUnique('Quiz'),
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required: true,
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}),
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data: t.arg({
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type: this.builder.generator.getUpdateInput('Quiz'),
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required: true,
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}),
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},
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resolve: async (query, _root, args, ctx, _info) => {
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if (ctx.isSubscription) {
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throw new Error('Subscription is not allowed')
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}
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if (!ctx.http.me) {
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throw new Error('Unauthorized')
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}
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return await this.prisma.quiz.update({
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...query,
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where: args.where,
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data: args.data,
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})
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},
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}),
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submitQuiz: t.prismaField({
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type: this.quizAttempt(),
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args: {
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data: t.arg({
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type: this.builder.generator.getCreateInput('QuizAttempt', [
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'id',
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'createdAt',
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'updatedAt',
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'quiz',
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'user',
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'userId',
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]),
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}),
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},
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resolve: async (query, _root, args, ctx, _info) => {
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if (ctx.isSubscription) {
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throw new Error('Subscription is not allowed')
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}
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if (!ctx.http.me) {
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throw new Error('Unauthorized')
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}
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if (!args.data) {
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throw new Error('Data is required')
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}
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if (!args.data.quiz?.connect?.id) {
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throw new Error('Quiz ID is required')
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}
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// query the quiz to get the questions
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const quiz = await this.prisma.quiz.findUnique({
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where: { id: args.data.quiz.connect.id },
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})
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if (!quiz) {
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throw new Error('Quiz not found')
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}
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return await this.prisma.quizAttempt.create({
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...query,
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data: {
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...args.data,
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quiz: { connect: { id: args.data.quiz.connect.id } },
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user: { connect: { id: ctx.http.me.id } },
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},
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})
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},
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}),
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}))
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}
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}
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function seededRandom(seed: number) {
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const x = Math.sin(seed) * 10000
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return x - Math.floor(x)
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}
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function getRandomWithSeed(seed: number) {
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return seededRandom(seed)
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}
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