feat(pipeline-task): add pipelineTaskEvent api.

src/pipeline-tasks/pipeline-tasks.resolver.ts

@@ -2,29 +2,35 @@ import { Resolver, Args, Mutation, Subscription, Query } from '@nestjs/graphql';
 import { PipelineTask } from './pipeline-task.entity';
 import { PipelineTasksService } from './pipeline-tasks.service';
 import { CreatePipelineTaskInput } from './dtos/create-pipeline-task.input';
-import { PipelineTaskLogMessage } from './models/pipeline-task-log-message.module';
 import { PipelineTaskLogArgs } from './dtos/pipeline-task-log.args';
 import { plainToClass } from 'class-transformer';
+import { PipelineTaskLogger } from './pipeline-task.logger';
+import { observableToAsyncIterable } from '@graphql-tools/utils';
+import { PipelineTaskEvent } from './models/pipeline-task-event';
 
 @Resolver()
 export class PipelineTasksResolver {
-  constructor(private readonly service: PipelineTasksService) {}
+  constructor(
+    private readonly service: PipelineTasksService,
+    private readonly taskLogger: PipelineTaskLogger,
+  ) {}
 
   @Mutation(() => PipelineTask)
   async createPipelineTask(@Args('task') taskDto: CreatePipelineTaskInput) {
     return await this.service.addTask(taskDto);
   }
 
-  @Subscription(() => PipelineTaskLogMessage, {
+  @Subscription(() => PipelineTaskEvent, {
     resolve: (value) => {
-      const data = plainToClass(PipelineTaskLogMessage, value);
+      const data = plainToClass(PipelineTaskEvent, value);
       return data;
     },
   })
-  async pipelineTaskLog(@Args() args: PipelineTaskLogArgs) {
-    // const task = await this.service.findTaskById(args.taskId);
-    // const asyncIterator = this.logsService.watchLogs(task);
-    // return asyncIterator;
+  async pipelineTaskEvent(@Args() args: PipelineTaskLogArgs) {
+    const task = await this.service.findTaskById(args.taskId);
+    return observableToAsyncIterable<PipelineTaskEvent>(
+      this.taskLogger.getMessage$(task.id),
+    );
   }
 
   @Subscription(() => PipelineTask, {