From cdbbe4bbf9c8a0e4dc1cb7111315e8eb0d23e13e Mon Sep 17 00:00:00 2001
From: masterelmar <18119527+masterElmar@users.noreply.github.com>
Date: Wed, 13 Dec 2023 10:03:37 +0100
Subject: [PATCH] update:#82 added schedule for sport update

---
 backend/service/addRoute.go                 |  2 +-
 backend/service/addSchedule.go              |  7 +++++++
 backend/service/fetch/sport/sportFetcher.go |  8 +++++++-
 backend/service/functions/semester.go       | 14 ++++++++++++++
 4 files changed, 29 insertions(+), 2 deletions(-)
 create mode 100644 backend/service/functions/semester.go

diff --git a/backend/service/addRoute.go b/backend/service/addRoute.go
index 1029a28..422021e 100644
--- a/backend/service/addRoute.go
+++ b/backend/service/addRoute.go
@@ -61,7 +61,7 @@ func AddRoutes(app *pocketbase.PocketBase) {
 			Path:   "/api/fetch/sports",
 			Handler: func(c echo.Context) error {
 
-				sportEvents := sport.RetrieveAndFetchAllSportCourses(app)
+				sportEvents := sport.FetchAndUpdateSportEvents(app)
 				return c.JSON(200, sportEvents)
 			},
 			Middlewares: []echo.MiddlewareFunc{
diff --git a/backend/service/addSchedule.go b/backend/service/addSchedule.go
index bd0cd96..0b62f39 100644
--- a/backend/service/addSchedule.go
+++ b/backend/service/addSchedule.go
@@ -6,6 +6,7 @@ import (
 	"github.com/pocketbase/pocketbase/tools/cron"
 	"htwkalender/service/course"
 	"htwkalender/service/feed"
+	"htwkalender/service/fetch/sport"
 	"htwkalender/service/functions/time"
 )
 
@@ -26,6 +27,12 @@ func AddSchedules(app *pocketbase.PocketBase) {
 			// clean feeds older than 6 months
 			feed.ClearFeeds(app.Dao(), 6, time.RealClock{})
 		})
+
+		// Every day at 2am update all Sport events (5 segments - minute, hour, day, month, weekday) "0 2 * * *"
+		scheduler.MustAdd("fetchEvents", "0 2 * * *", func() {
+			sport.FetchAndUpdateSportEvents(app)
+		})
+
 		scheduler.Start()
 		return nil
 	})
diff --git a/backend/service/fetch/sport/sportFetcher.go b/backend/service/fetch/sport/sportFetcher.go
index e71c285..ddc7377 100644
--- a/backend/service/fetch/sport/sportFetcher.go
+++ b/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)
 
diff --git a/backend/service/functions/semester.go b/backend/service/functions/semester.go
new file mode 100644
index 0000000..e0a457f
--- /dev/null
+++ b/backend/service/functions/semester.go
@@ -0,0 +1,14 @@
+package functions
+
+import "time"
+
+// GetCurrentSemesterString returns the current semester as string
+// if current month is between 10 and 03 -> winter semester "ws"
+func GetCurrentSemesterString() string {
+
+	if time.Now().Month() >= 10 || time.Now().Month() <= 3 {
+		return "ws"
+	} else {
+		return "ss"
+	}
+}