update preview date

src/Schedule/schedule.schema.ts

@@ -8,12 +8,39 @@ import {
 import { Builder } from '../Graphql/graphql.builder'
 import { PrismaService } from '../Prisma/prisma.service'
 import { ScheduleStatus } from '@prisma/client'
+import { ScheduleService } from './schedule.service'
+import { AppConfigService } from '../AppConfig/appconfig.service'
+
+export type ScheduleConfigType =
+  | {
+      midDayBreakTimeStart?: string | null | undefined
+      midDayBreakTimeEnd?: string | null | undefined
+      slotDuration?: string | null | undefined
+      slotBreakDuration?: string | null | undefined
+      slotEndTime?: string | null | undefined
+      slotStartTime?: string | null | undefined
+    }
+  | null
+  | undefined
+
+export type ScheduleSlotType = {
+  slot: string
+  start: string
+  end: string
+}
+
+export type PreviewScheduleType = {
+  totalSlots: number
+  slots: ScheduleSlotType[]
+}
 
 @Injectable()
 export class ScheduleSchema extends PothosSchema {
   constructor(
     @Inject(SchemaBuilderToken) private readonly builder: Builder,
     private readonly prisma: PrismaService,
+    private readonly scheduleService: ScheduleService,
+    private readonly appConfigService: AppConfigService,
   ) {
     super()
   }
@@ -53,6 +80,29 @@ export class ScheduleSchema extends PothosSchema {
     })
   }
 
+  @PothosRef()
+  scheduleSlot() {
+    return this.builder.simpleObject('ScheduleSlot', {
+      fields: (t) => ({
+        slot: t.string({}),
+        start: t.string({}),
+        end: t.string({}),
+      }),
+    })
+  }
+
+  @PothosRef()
+  previewSchedule() {
+    return this.builder.simpleObject('PreviewSchedule', {
+      fields: (t) => ({
+        totalSlots: t.int(),
+        slots: t.field({
+          type: [this.scheduleSlot()],
+        }),
+      }),
+    })
+  }
+
   @PothosRef()
   scheduleDate() {
     return this.builder.prismaObject('ScheduleDate', {
@@ -79,6 +129,21 @@ export class ScheduleSchema extends PothosSchema {
     })
   }
 
+  @PothosRef()
+  scheduleConfigInput() {
+    return this.builder.inputType('ScheduleConfigInput', {
+      description: 'A schedule config in the system.',
+      fields: (t) => ({
+        midDayBreakTimeStart: t.string(),
+        midDayBreakTimeEnd: t.string(),
+        slotDuration: t.string(),
+        slotBreakDuration: t.string(),
+        slotEndTime: t.string(),
+        slotStartTime: t.string(),
+      }),
+    })
+  }
+
   @Pothos()
   init(): void {
     this.builder.queryFields((t) => ({
@@ -109,6 +174,21 @@ export class ScheduleSchema extends PothosSchema {
           })
         },
       }),
+
+      adminPreviewSchedule: t.field({
+        type: this.previewSchedule(),
+        description: 'Preview a schedule for admin.',
+        args: {
+          scheduleConfig: t.arg({
+            type: this.scheduleConfigInput(),
+          }),
+        },
+        resolve: async (_parent, args, _context, _info) => {
+          return await this.scheduleService.createSchedulePreview(
+            args.scheduleConfig,
+          )
+        },
+      }),
     }))
   }
 }