update:#82 added schedule for sport update

backend/service/fetch/sport/sportFetcher.go

@@ -7,6 +7,7 @@ import (
 	"github.com/pocketbase/pocketbase/tools/types"
 	"htwkalender/model"
 	"htwkalender/service/db"
+	"htwkalender/service/functions"
 	"net/http"
 	"regexp"
 	"strconv"
@@ -19,7 +20,7 @@ import (
 
 // @TODO: add tests
 // @TODO: make it like a cron job to fetch the sport courses once a week
-func RetrieveAndFetchAllSportCourses(app *pocketbase.PocketBase) []model.Event {
+func FetchAndUpdateSportEvents(app *pocketbase.PocketBase) []model.Event {
 
 	var sportCourseLinks = fetchAllAvailableSportCourses()
 	sportEntries := fetchHTWKSportCourses(sportCourseLinks)
@@ -55,6 +56,11 @@ func RetrieveAndFetchAllSportCourses(app *pocketbase.PocketBase) []model.Event {
 		}
 	}
 
+	err = db.DeleteAllEventsForCourse(app, "Sport", functions.GetCurrentSemesterString())
+	if err != nil {
+		return nil
+	}
+
 	// save events to database
 	savedEvents, err := db.SaveEvents(events, app)