chore: annoucement module with user-group

src/modules/announcements/entities/announcement.entity.ts

@@ -0,0 +1,33 @@
+import { Column, Entity, Index, ManyToMany } from "typeorm";
+
+import { BaseEntity } from "../../../common/entities/base.entity";
+import { UserGroup } from "../../users/entities/user-group.entity";
+
+@Entity()
+@Index(["isPublic", "createdAt"])
+export class Announcement extends BaseEntity {
+  @Column({ type: "varchar", length: 100 })
+  title: string;
+
+  @Column({ type: "text" })
+  content: string;
+
+  @Column({ type: "timestamp", default: null, nullable: true })
+  publishAt: Date;
+
+  //TODO: Add service here
+  //TODO: Add customer here
+
+  @Column({ type: "boolean", default: false })
+  isImportant: boolean;
+
+  @ManyToMany(() => UserGroup, (group) => group.announcements)
+  targetGroups: UserGroup[];
+
+  @Column({ default: false })
+  isPublic: boolean;
+
+  isPublicAnnouncement(): boolean {
+    return this.isPublic;
+  }
+}