first commit

libs/api/tracker/application/src/lib/comments.service.ts

@@ -0,0 +1,50 @@
+import { Injectable } from '@nestjs/common';
+import { CommandBus, QueryBus } from '@nestjs/cqrs';
+import { CommentReadModel } from '@task-stream/api/tracker/domain';
+import { AddCommentCommand } from './commands/add-comment.command';
+import { CommandResult } from './commands/command-result';
+import { DeleteCommentCommand } from './commands/delete-comment.command';
+import { EditCommentCommand } from './commands/edit-comment.command';
+import { Page } from './ports/find-issues.repository';
+import { GetCommentsQuery } from './queries/get-comments.query';
+
+@Injectable()
+export class CommentsService {
+  constructor(
+    private readonly commandBus: CommandBus,
+    private readonly queryBus: QueryBus,
+  ) {}
+
+  add(actorId: string, issueId: string, body: string): Promise<CommandResult> {
+    return this.commandBus.execute(
+      new AddCommentCommand(actorId, issueId, body),
+    );
+  }
+
+  edit(
+    actorId: string,
+    commentId: string,
+    body: string,
+  ): Promise<CommandResult> {
+    return this.commandBus.execute(
+      new EditCommentCommand(actorId, commentId, body),
+    );
+  }
+
+  delete(actorId: string, commentId: string): Promise<CommandResult> {
+    return this.commandBus.execute(
+      new DeleteCommentCommand(actorId, commentId),
+    );
+  }
+
+  list(
+    viewerId: string,
+    issueId: string,
+    limit?: number,
+    offset?: number,
+  ): Promise<Page<CommentReadModel>> {
+    return this.queryBus.execute(
+      new GetCommentsQuery(viewerId, issueId, limit, offset),
+    );
+  }
+}