MM-21898 - Part 1: Generate and use an interface instead of *A… (#13840)

* Generate and use an interface instead of *App

plugin/scheduler/worker.go

@@ -25,7 +25,7 @@ func (m *PluginsJobInterfaceImpl) MakeWorker() model.Worker {
 		stop:      make(chan bool, 1),
 		stopped:   make(chan bool, 1),
 		jobs:      make(chan model.Job),
-		jobServer: m.App.Srv.Jobs,
+		jobServer: m.App.Srv().Jobs,
 		app:       m.App,
 	}
 
@@ -84,14 +84,14 @@ func (worker *Worker) DoJob(job *model.Job) {
 }
 
 func (worker *Worker) setJobSuccess(job *model.Job) {
-	if err := worker.app.Srv.Jobs.SetJobSuccess(job); err != nil {
+	if err := worker.app.Srv().Jobs.SetJobSuccess(job); err != nil {
 		mlog.Error("Worker: Failed to set success for job", mlog.String("worker", worker.name), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
 		worker.setJobError(job, err)
 	}
 }
 
 func (worker *Worker) setJobError(job *model.Job, appError *model.AppError) {
-	if err := worker.app.Srv.Jobs.SetJobError(job, appError); err != nil {
+	if err := worker.app.Srv().Jobs.SetJobError(job, appError); err != nil {
 		mlog.Error("Worker: Failed to set job error", mlog.String("worker", worker.name), mlog.String("job_id", job.Id), mlog.String("error", err.Error()))
 	}
 }