feat: introduce feed management for individual and professor modules across frontend and backend services.

services/ical/service/connector/grpc/feeds.go

@@ -18,12 +18,13 @@ package grpc
 
 import (
 	"context"
-	"github.com/goccy/go-json"
-	"google.golang.org/grpc"
 	pb "htwkalender/common/genproto/modules"
 	"htwkalender/ical/model"
 	"log/slog"
 	"time"
+
+	"github.com/goccy/go-json"
+	"google.golang.org/grpc"
 )
 
 func GetFeed(feedId string, conn *grpc.ClientConn) (model.FeedRecord, error) {
@@ -65,5 +66,8 @@ func protoToFeed(feed *pb.Feed) (model.FeedRecord, error) {
 		Retrieved: model.ToJSONTime(feed.Retrieved),
 		Modules:   modules,
 		Deleted:   feed.Deleted,
+		Type:      feed.Type,
+		User:      feed.User,
+		UserEmail: feed.UserEmail,
 	}, nil
 }

services/ical/service/ical/ical.go

@@ -24,6 +24,8 @@ import (
 	"htwkalender/ical/service/functions"
 	"log/slog"
 	"time"
+
+	commonProf "htwkalender/common/professor"
 )
 
 const expirationTime = 5 * time.Minute
@@ -59,6 +61,11 @@ func Feed(app model.AppType, token string, userAgent string) (string, string, er
 			return "", "", err
 		}
 
+		// Filter by professor if type is "prof"
+		if feed.Type == "prof" && feed.UserEmail != "" {
+			events = filterEventsByProfessor(events, feed.UserEmail)
+		}
+
 		// Sort events by start date
 		events.Sort()
 
@@ -126,3 +133,22 @@ func FeedRoom(app model.AppType, room string, userAgent string) (string, string,
 
 	return icalFeed.Content, etag, nil
 }
+
+func filterEventsByProfessor(events model.Events, email string) model.Events {
+	if email == "" {
+		return events
+	}
+
+	firstName, lastName, err := commonProf.ExtractNameFromEmail(email)
+	if err != nil {
+		return events
+	}
+
+	var filteredEvents model.Events
+	for _, event := range events {
+		if commonProf.MatchesProfessor(event.Prof, firstName, lastName) {
+			filteredEvents = append(filteredEvents, event)
+		}
+	}
+	return filteredEvents
+}