first commit

libs/api/tracker/application/src/lib/commands/delete-comment.command-handler.ts

@@ -0,0 +1,24 @@
+import { CommandHandler, ICommandHandler } from '@nestjs/cqrs';
+import { ProjectRole } from '@task-stream/api/tracker/domain';
+import { CommandResult, ack } from './command-result';
+import { DeleteCommentCommand } from './delete-comment.command';
+import { WriteAccess } from './write-access';
+
+@CommandHandler(DeleteCommentCommand)
+export class DeleteCommentCommandHandler
+  implements ICommandHandler<DeleteCommentCommand>
+{
+  constructor(private readonly access: WriteAccess) {}
+
+  async execute(command: DeleteCommentCommand): Promise<CommandResult> {
+    const comment = await this.access.comment(command.commentId);
+    const project = await this.access.project(comment.projectId);
+    const role = project.roleOf(command.actorId);
+    comment.delete(
+      command.actorId,
+      role === ProjectRole.OWNER || role === ProjectRole.ADMIN,
+    );
+    await comment.commitAndWait();
+    return ack(comment);
+  }
+}