Implement update ad command

src/modules/ad/ad.mapper.ts

@@ -11,7 +11,9 @@ import {
   AdReadModel,
   AdWriteModel,
   ScheduleItemModel,
+  ScheduleWriteModel,
   WaypointModel,
+  WaypointWriteModel,
 } from './infrastructure/ad.repository';
 import { AdResponseDto } from './interface/dtos/ad.response.dto';
 
@@ -31,9 +33,8 @@ export class AdMapper
     private readonly outputDatetimeTransformer: DateTimeTransformerPort,
   ) {}
 
-  toPersistence = (entity: AdEntity): AdWriteModel => {
+  toPersistence = (entity: AdEntity, update?: boolean): AdWriteModel => {
     const copy = entity.getProps();
-    const now = new Date();
     const record: AdWriteModel = {
       uuid: copy.id,
       userUuid: copy.userId,
@@ -43,9 +44,26 @@ export class AdMapper
       frequency: copy.frequency,
       fromDate: new Date(copy.fromDate),
       toDate: new Date(copy.toDate),
-      schedule: copy.schedule
-        ? {
-            create: copy.schedule.map((scheduleItem: ScheduleItemProps) => ({
+      schedule: this.toScheduleItemWriteModel(copy.schedule, update),
+      seatsProposed: copy.seatsProposed as number,
+      seatsRequested: copy.seatsRequested as number,
+      strict: copy.strict as boolean,
+      waypoints: this.toWaypointWriteModel(copy.waypoints, update),
+      comment: copy.comment,
+    };
+    return record;
+  };
+
+  toScheduleItemWriteModel = (
+    schedule: ScheduleItemProps[],
+    update?: boolean,
+  ): ScheduleWriteModel | undefined => {
+    if (!schedule) {
+      return undefined;
+    }
+    const now = new Date();
+    const record: ScheduleWriteModel = {
+      create: schedule.map((scheduleItem: ScheduleItemProps) => ({
         uuid: v4(),
         day: scheduleItem.day,
         time: new Date(
@@ -59,14 +77,25 @@ export class AdMapper
         createdAt: now,
         updatedAt: now,
       })),
+    };
+    if (update) {
+      record.deleteMany = {
+        createdAt: { lt: now },
+      };
     }
-        : undefined,
-      seatsProposed: copy.seatsProposed as number,
-      seatsRequested: copy.seatsRequested as number,
-      strict: copy.strict as boolean,
-      waypoints: copy.waypoints
-        ? {
-            create: copy.waypoints.map((waypoint: WaypointProps) => ({
+    return record;
+  };
+
+  toWaypointWriteModel = (
+    waypoints: WaypointProps[],
+    update?: boolean,
+  ): WaypointWriteModel | undefined => {
+    if (!waypoints) {
+      return undefined;
+    }
+    const now = new Date();
+    const record: WaypointWriteModel = {
+      create: waypoints.map((waypoint: WaypointProps) => ({
         uuid: v4(),
         position: waypoint.position,
         name: waypoint.address.name,
@@ -80,10 +109,12 @@ export class AdMapper
         createdAt: now,
         updatedAt: now,
       })),
-          }
-        : undefined,
-      comment: copy.comment,
     };
+    if (update) {
+      record.deleteMany = {
+        createdAt: { lt: now },
+      };
+    }
     return record;
   };
 

src/modules/ad/ad.module.ts

@@ -14,6 +14,7 @@ import { CreateAdService } from './core/application/commands/create-ad/create-ad
 import { DeleteAdService } from './core/application/commands/delete-ad/delete-ad.service';
 import { DeleteUserAdsService } from './core/application/commands/delete-user-ads/delete-user-ads.service';
 import { InvalidateAdService } from './core/application/commands/invalidate-ad/invalidate-ad.service';
+import { UpdateAdService } from './core/application/commands/update-ad/update-ad.service';
 import { ValidateAdService } from './core/application/commands/validate-ad/validate-ad.service';
 import { PublishMessageWhenAdIsDeletedDomainEventHandler } from './core/application/event-handlers/publish-message-when-ad-deleted.domain-event-handler';
 import { PublishMessageWhenAdIsCreatedDomainEventHandler } from './core/application/event-handlers/publish-message-when-ad-is-created.domain-event-handler';
@@ -58,6 +59,7 @@ const eventHandlers: Provider[] = [
 
 const commandHandlers: Provider[] = [
   CreateAdService,
+  UpdateAdService,
   DeleteAdService,
   DeleteUserAdsService,
   ValidateAdService,

src/modules/ad/core/application/commands/create-ad/create-ad.service.ts

@@ -13,22 +13,17 @@ import { DateTimeTransformerPort } from '../../ports/datetime-transformer.port';
 import { Waypoint } from '../../types/waypoint';
 import { CreateAdCommand } from './create-ad.command';
 
-@CommandHandler(CreateAdCommand)
-export class CreateAdService implements ICommandHandler {
-  constructor(
-    @Inject(AD_REPOSITORY)
-    private readonly repository: AdRepositoryPort,
-    @Inject(INPUT_DATETIME_TRANSFORMER)
-    private readonly datetimeTransformer: DateTimeTransformerPort,
-  ) {}
-
-  async execute(command: CreateAdCommand): Promise<AggregateID> {
-    const ad = AdEntity.create({
+export function createPropsFromCommand(
+  command: CreateAdCommand,
+  datetimeTransformer: DateTimeTransformerPort,
+) {
+  return {
     userId: command.userId,
     driver: command.driver,
     passenger: command.passenger,
     frequency: command.frequency,
-      fromDate: this.datetimeTransformer.fromDate(
+    //TODO Shouldn't that kind of logic be in the domain layer?
+    fromDate: datetimeTransformer.fromDate(
       {
         date: command.fromDate,
         time: command.schedule[0].time,
@@ -39,7 +34,7 @@ export class CreateAdService implements ICommandHandler {
       },
       command.frequency,
     ),
-      toDate: this.datetimeTransformer.toDate(
+    toDate: datetimeTransformer.toDate(
       command.toDate,
       {
         date: command.fromDate,
@@ -52,7 +47,7 @@ export class CreateAdService implements ICommandHandler {
       command.frequency,
     ),
     schedule: command.schedule.map((scheduleItem: ScheduleItemProps) => ({
-        day: this.datetimeTransformer.day(
+      day: datetimeTransformer.day(
         scheduleItem.day,
         {
           date: command.fromDate,
@@ -64,7 +59,7 @@ export class CreateAdService implements ICommandHandler {
         },
         command.frequency,
       ),
-        time: this.datetimeTransformer.time(
+      time: datetimeTransformer.time(
         {
           date: command.fromDate,
           time: scheduleItem.time,
@@ -96,7 +91,22 @@ export class CreateAdService implements ICommandHandler {
       },
     })),
     comment: command.comment,
-    });
+  };
+}
+
+@CommandHandler(CreateAdCommand)
+export class CreateAdService implements ICommandHandler {
+  constructor(
+    @Inject(AD_REPOSITORY)
+    private readonly repository: AdRepositoryPort,
+    @Inject(INPUT_DATETIME_TRANSFORMER)
+    private readonly datetimeTransformer: DateTimeTransformerPort,
+  ) {}
+
+  async execute(command: CreateAdCommand): Promise<AggregateID> {
+    const ad = AdEntity.create(
+      createPropsFromCommand(command, this.datetimeTransformer),
+    );
 
     try {
       await this.repository.insert(ad);

src/modules/ad/core/application/commands/update-ad/update-ad.command.ts

@@ -0,0 +1,16 @@
+import { CommandProps } from '@mobicoop/ddd-library';
+import { CreateAdCommand } from '../create-ad/create-ad.command';
+
+/**
+ * Ad updates follow the PUT semantics: they replace the entire object.
+ * Therefore the update command extends the create command to inherit the same properties
+ * and re-use the data transformation logic.
+ */
+export class UpdateAdCommand extends CreateAdCommand {
+  public adId: string;
+
+  constructor(props: CommandProps<UpdateAdCommand>) {
+    super(props);
+    this.adId = props.adId;
+  }
+}

src/modules/ad/core/application/commands/update-ad/update-ad.service.ts

@@ -0,0 +1,29 @@
+import {
+  AD_REPOSITORY,
+  INPUT_DATETIME_TRANSFORMER,
+} from '@modules/ad/ad.di-tokens';
+import { Inject } from '@nestjs/common';
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { AdRepositoryPort } from '../../ports/ad.repository.port';
+import { DateTimeTransformerPort } from '../../ports/datetime-transformer.port';
+import { createPropsFromCommand } from '../create-ad/create-ad.service';
+import { UpdateAdCommand } from './update-ad.command';
+
+@CommandHandler(UpdateAdCommand)
+export class UpdateAdService implements ICommandHandler {
+  constructor(
+    @Inject(AD_REPOSITORY)
+    private readonly repository: AdRepositoryPort,
+    @Inject(INPUT_DATETIME_TRANSFORMER)
+    private readonly datetimeTransformer: DateTimeTransformerPort,
+  ) {}
+
+  async execute(command: UpdateAdCommand): Promise<void> {
+    const ad = await this.repository.findOneById(command.adId, {
+      waypoints: true,
+      schedule: true,
+    });
+    ad.update(createPropsFromCommand(command, this.datetimeTransformer));
+    await this.repository.update(ad.id, ad);
+  }
+}

src/modules/ad/core/application/types/waypoint.ts

@@ -1,5 +1,6 @@
 import { Address } from './address';
 
+//TODO Why not use the Waypoint value-object from the domain?
 export type Waypoint = {
   position: number;
 } & Address;

src/modules/ad/infrastructure/ad.repository.ts

@@ -1,16 +1,16 @@
-import { Inject, Injectable, Logger } from '@nestjs/common';
-import { EventEmitter2 } from '@nestjs/event-emitter';
-import { AdEntity } from '../core/domain/ad.entity';
-import { AdMapper } from '../ad.mapper';
-import { AdRepositoryPort } from '../core/application/ports/ad.repository.port';
 import {
   LoggerBase,
   MessagePublisherPort,
   PrismaRepositoryBase,
 } from '@mobicoop/ddd-library';
-import { PrismaService } from './prisma.service';
-import { AD_MESSAGE_PUBLISHER } from '../ad.di-tokens';
+import { Inject, Injectable, Logger } from '@nestjs/common';
+import { EventEmitter2 } from '@nestjs/event-emitter';
 import { SERVICE_NAME } from '@src/app.constants';
+import { AD_MESSAGE_PUBLISHER } from '../ad.di-tokens';
+import { AdMapper } from '../ad.mapper';
+import { AdRepositoryPort } from '../core/application/ports/ad.repository.port';
+import { AdEntity } from '../core/domain/ad.entity';
+import { PrismaService } from './prisma.service';
 
 export type AdBaseModel = {
   uuid: string;
@@ -40,13 +40,21 @@ export type AdWriteModel = AdBaseModel & {
 };
 
 export type ScheduleWriteModel = {
+  deleteMany?: PastCreatedFilter;
   create: ScheduleItemModel[];
 };
 
 export type WaypointWriteModel = {
+  deleteMany?: PastCreatedFilter;
   create: WaypointModel[];
 };
 
+// used to delete records created in the past,
+// because the order of `create` and `deleteMany` is not guaranteed
+export type PastCreatedFilter = {
+  createdAt: { lt: Date };
+};
+
 export type ScheduleItemModel = {
   uuid: string;
   day: number;