make it work for my tram board

adds webserer with endpoint /line?number=3

you need to specify a post body text using b64-encoded, semicolon-separated names of the stops

index of stop name corresponds to returned value (led index)

cmd/tracker/main.go

@@ -1,37 +1,62 @@
 package main
 
 import (
+	// "fmt"
 	"log"
-	"shellixa/puvetra/internal/maps"
+	// "maps"
+	trmaps "shellixa/puvetra/internal/maps"
 	"shellixa/puvetra/internal/types"
+	/*"slices"
+	"strings" */
+	"time"
 )
 
 func main() {
 
 	log.Printf("Starting up..\n")
-	trips := maps.GetTrips()
+	trams := trmaps.GetTrips()
 
 	var allTrams []types.MapTrip
 
-	for _, t := range trips {
-		if t.Mode == "TRAM" {
+	for _, t := range trams {
+		if t.Mode == "TRAM" && t.Trips[0].RouteShortName == "3" {
 			allTrams = append(allTrams, t)
 		}
 	}
 
-	var traminfo []map[string]string
+	var traminfo = make(map[string]types.MapTrip)
 
+	now := time.Now()
 	for _, tr := range allTrams {
-		data := map[string]string{}
-		data["line"] = tr.Trips[0].RouteShortName
-		data["currentStation"] = tr.From.Name
-		data["nextStation"] = tr.To.Name
-		data["departure"] = tr.Departure
-		data["arrival"] = tr.Arrival
-		traminfo = append(traminfo, data)
+		// Überschreibe [tripId] nur, wenn (OR)
+		// - [tripId] == nil
+		// - departure < now && arrival > [tripId].departure
+		storedTram := traminfo[tr.Trips[0].TripId]
+
+		if tr.Departure.Sub(now).Abs() < storedTram.Departure.Sub(now).Abs() {
+			// Current is past now, Stored is future now
+			traminfo[tr.Trips[0].TripId] = tr
+		}
 	}
 
 	log.Printf("%+v\n", traminfo)
 	log.Printf("%d", len(traminfo))
-}
+	/*
 
+	   activeLights := make(map[int]bool)
+
+	   	for _, tram := range allTrams {
+	   		// Calculate current Station name depending on current time
+	   		realStation := tram.From
+	   		if now.Sub(depTime) > arrTime.Sub(now) {
+	   			//		log.Printf(">  %v, %v\n", now.Sub(tram.Departure), tram.Arrival.Sub(now))
+	   			realStation = tram.To
+	   		}
+	   		// log.Printf("From='%s' To='%s' Real='%s'\n", tram.From.Name, tram.To.Name, realStation.Name)
+	   		activeLights[stationLookupTable[strings.ToLower(realStation.Name)]] = true
+
+	   }
+
+	   fmt.Println(slices.Collect(maps.Keys(activeLights)))
+	*/
+}