feature:#150 added slog and changed signatures

backend/service/events/eventService.go

@@ -3,7 +3,6 @@ package events
 import (
 	"github.com/labstack/echo/v5"
 	"github.com/pocketbase/pocketbase"
-	"github.com/pocketbase/pocketbase/apis"
 	"htwkalender/model"
 	"htwkalender/service/db"
 	"htwkalender/service/fetch/v1"
@@ -89,7 +88,7 @@ func DeleteAllEvents(app *pocketbase.PocketBase) error {
 // 3. Save all events for the course and the semester
 // If the update was successful, nil is returned
 // If the update was not successful, an error is returned
-func UpdateModulesForCourse(app *pocketbase.PocketBase, course string) error {
+func UpdateModulesForCourse(app *pocketbase.PocketBase, course string) (model.Events, error) {
 
 	//new string array with one element (course)
 	var courses []string
@@ -109,29 +108,32 @@ func UpdateModulesForCourse(app *pocketbase.PocketBase, course string) error {
 	//get all events for the course and the semester
 	events, err := db.GetAllModulesForCourse(app, course, "ws")
 	if err != nil {
-		return apis.NewNotFoundError("Events for winter semester could not be found", err)
+		return nil, err
 	}
 
 	// append all events for the course and the semester to the events array for ss
 	summerEvents, err := db.GetAllModulesForCourse(app, course, "ss")
 	if err != nil {
-		return apis.NewNotFoundError("Events for summer semester could not be found", err)
+		return nil, err
 	}
 
 	events = append(events, summerEvents...)
 
 	//if there are no events in the database, save the new events
 	if len(events) == 0 {
-		_, dbError := db.SaveSeminarGroupEvents(seminarGroups, app)
+		events, dbError := db.SaveSeminarGroupEvents(seminarGroups, app)
 		if dbError != nil {
-			return apis.NewNotFoundError("Events could not be saved", dbError)
+			return nil, dbError
 		}
-		return nil
+		return events, nil
 	}
 
 	//check if events in the seminarGroups Events are already in the database
 	//if yes, keep the database as it is
 	//if no, delete all events for the course and the semester and save the new events
+
+	var savedEvents model.Events
+
 	for _, seminarGroup := range seminarGroups {
 		for _, event := range seminarGroup.Events {
 			// if the event is not in the database, delete all events for the course and the semester and save the new events
@@ -139,25 +141,24 @@ func UpdateModulesForCourse(app *pocketbase.PocketBase, course string) error {
 
 				err = DeleteAllEventsByCourseAndSemester(app, course, "ws")
 				if err != nil {
-					return err
+					return nil, err
 				}
 
 				err = DeleteAllEventsByCourseAndSemester(app, course, "ss")
 				if err != nil {
-					return err
+					return nil, err
 				}
 
 				//save the new events
-				_, dbError := db.SaveSeminarGroupEvents(seminarGroups, app)
+				savedEvent, dbError := db.SaveSeminarGroupEvents(seminarGroups, app)
 				if dbError != nil {
-					return apis.NewNotFoundError("Events could not be saved", dbError)
+					return nil, dbError
 				}
-				return nil
+				savedEvents = append(savedEvents, savedEvent...)
 			}
 		}
 	}
-
-	return nil
+	return savedEvents, nil
 }
 
 func ContainsEvent(events model.Events, event model.Event) bool {