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

* Generate and use an interface instead of *App

plugin/interface_generator/main.go

@@ -263,7 +263,7 @@ func (g *hooksRPCClient) {{.Name}}{{funcStyle .Params}} {{funcStyle .Return}} {
 	_returns := &{{.Name | obscure}}Returns{}
 	if g.implemented[{{.Name}}Id] {
 		if err := g.client.Call("Plugin.{{.Name}}", _args, _returns); err != nil {
-			g.log.Error("RPC call {{.Name}} to plugin failed.", mlog.Err(err))
+			g.Log().Error("RPC call {{.Name}} to plugin failed.", mlog.Err(err))
 		}
 	}
 	{{ if .Return }} return {{destruct "_returns." .Return}} {{ end }}

plugin/scheduler/scheduler.go

@@ -41,7 +41,7 @@ func (scheduler *Scheduler) NextScheduleTime(cfg *model.Config, now time.Time, p
 func (scheduler *Scheduler) ScheduleJob(cfg *model.Config, pendingJobs bool, lastSuccessfulJob *model.Job) (*model.Job, *model.AppError) {
 	mlog.Debug("Scheduling Job", mlog.String("scheduler", scheduler.Name()))
 
-	job, err := scheduler.App.Srv.Jobs.CreateJob(model.JOB_TYPE_PLUGINS, nil)
+	job, err := scheduler.App.Srv().Jobs.CreateJob(model.JOB_TYPE_PLUGINS, nil)
 	if err != nil {
 		return nil, err
 	}

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()))
 	}
 }