added frontend and made it usable

backend/services/EventService.go

@@ -0,0 +1,38 @@
+package services
+
+import (
+	"log"
+	"whimsoc/vindn-backend/models"
+	"whimsoc/vindn-backend/repositories"
+	"whimsoc/vindn-backend/utils"
+)
+
+func FetchEvents() ([]models.Event, error) {
+	return utils.FetchDataFromAPI()
+}
+
+type EventService struct {
+	repo repositories.EventRepository
+}
+
+func NewEventService(repo repositories.EventRepository) *EventService {
+	return &EventService{repo}
+}
+
+func (s *EventService) ImportEvents() error {
+	events, err := utils.FetchDataFromAPI()
+	if err != nil {
+		return err
+	}
+
+	log.Println("Data will be saved.")
+	for _, event := range events {
+		if err := s.repo.Save(&event); err != nil {
+			log.Println("Fehler beim Speichern:", err)
+		}
+	}
+
+	log.Println("Data is saved.")
+
+	return nil
+}