feat: WIP add new algorythms

Makefile

@@ -29,7 +29,7 @@ trace_etl: build_etl# go tool trace t.out
 build_etl:
 	env GOOS=linux CGO_ENABLED=0 GOARCH=amd64 go build -v -o etl ./cmd/etl/main.go
 build_server:
-	env GOOS=linux CGO_ENABLED=0 GOARCH=amd64 go build -o ${BINARY_DIR}/${BINARY_NAME} ./main.go
+	env GOOS=linux CGO_ENABLED=0 GOARCH=amd64 go build -o server ./cmd/server/main.go
 run_server: build_server
-	./${BINARY_DIR}/${BINARY_NAME}
+	./server
 

cmd/etl/main.go

@@ -91,8 +91,9 @@ func main() {
 	cr.MarkAndRestart("dependencies loaded")
 
 	etlLoader := etl.New(ewiLoader, repo)
-	// err = etlLoader.FanOut(ctx, cfg.EmployeeIdList, from, to)
+	err = etlLoader.FanOut(ctx, cfg.EmployeeIdList, from, to)
-	err = etlLoader.FanOut2(ctx, cfg.EmployeeIdList, from, to)
+	// err = etlLoader.FanOutV2(ctx, cfg.EmployeeIdList, from, to)
+	// err = etlLoader.FanOut2(ctx, cfg.EmployeeIdList, from, to)
 	// err = etlLoader.Main(signalContext(ctx), cr, cfg.EmployeeIdList, from, to)
 	if err != nil {
 		log.Fatalln("etlLoader.FanOut", err)

internal/etl/etl.go

@@ -73,6 +73,49 @@ func (etl *Etl) FanOut(ctx context.Context, employeeNumber []string, from, to st
 	return <-errChan
 }
 
+func (etl *Etl) FanOutV2(ctx context.Context, employeeNumber []string, from, to string) error {
+	employeeWIChan := make(chan []domain.EmployeeWorkInformation, len(employeeNumber))
+	errChan := make(chan error, 1)
+
+	go func() {
+		for {
+			select {
+			case v, ok := <-employeeWIChan:
+				if !ok {
+					errChan <- nil
+					return
+				}
+				err := etl.repo.InsertMany(ctx, v)
+				if err != nil {
+					errChan <- err
+					return
+				}
+			}
+		}
+	}()
+
+	go func() {
+		var wg sync.WaitGroup
+		wg.Add(len(employeeNumber))
+		for i := range employeeNumber {
+			go func(v string) {
+				defer wg.Done()
+				wi, err := etl.ewiLoader.LoadEmployee(v, from, to)
+				if err != nil {
+					log.Println("err", err)
+					errChan <- err
+					return
+				}
+				employeeWIChan <- wi
+			}(employeeNumber[i])
+		}
+		wg.Wait()
+		close(employeeWIChan)
+	}()
+
+	return <-errChan
+}
+
 func (etl *Etl) FanOut2(ctx context.Context, employeeNumber []string, from, to string) error {
 	employeeWIChan := make(chan []domain.EmployeeWorkInformation, len(employeeNumber))
 	xmlChan := make(chan []byte, len(employeeNumber))