automatic Logging

main.go

@@ -10,8 +10,6 @@ import (
 	"os"
 	"os/signal"
 	"sort"
-
-	//	"strings"
 	"syscall"
 	"time"
 	Untis "untislogger/Bot"
@@ -51,25 +49,88 @@ func init() {
 }
 
 func main() {
-	Untis.Main() //starting API calls function
-
-	//checking for time
+	//Untis.Main() //starting API calls function| happens in schedule func
+	//Run()
+	//Starts logging the timetable for each new Lesson and logs changes
+	scheduleTimetableUpdate()
 
 	sigChan := make(chan os.Signal, 1)
 	signal.Notify(sigChan, syscall.SIGINT, syscall.SIGTERM)
 
 	log.Println("Program is running. Press Ctrl+C to stop.")
 	//Start logging
-	Run()
+	//Run()
 	// Block until we receive a signal
 	<-sigChan
 	log.Println("Shutting down...")
 }
+func isScheduledTime(now time.Time) bool {
+	scheduled := []string{"07:45", "08:35", "09:35", "10:25", "11:25", "12:15", "13:45", "14:25"}
+	current := now.Format("15:04")
+	for _, t := range scheduled {
+		if t == current {
+			return true
+		}
+	}
+	return false
+}
+func scheduleTimetableUpdate() {
+	var prevData []byte
+	//run once
+	Untis.Main()
+	// Initial read of the file
+	data, err := os.ReadFile("timetableFilled.json")
+	if err == nil {
+		prevData = data
+	}
+
+	// Ticker for checking timetable changes every hour
+	hourTicker := time.NewTicker(1 * time.Hour)
+	go func() {
+		for range hourTicker.C {
+			Untis.Main()
+			data, err := os.ReadFile("timetableFilled.json")
+			if err != nil {
+				log.Printf("Error reading timetable: %v", err)
+			} else if !bytes.Equal(data, prevData) {
+				log.Println("Timetable file has changed.")
+				sendUpdateDiscordWebhook()
+				prevData = data
+			}
+		}
+	}()
+
+	// Ticker for checking scheduled times every minute
+	startMinuteTicker(func() {
+		now := time.Now()
+		if isScheduledTime(now) {
+			log.Println("Scheduled time reached, updating and running Run()")
+			Untis.Main()
+			log.Println("Updated now running Run()")
+			Run()
+			log.Println("Finished running Run")
+		}
+	})
+}
+
+func startMinuteTicker(f func()) {
+	now := time.Now()
+	next := now.Truncate(time.Minute).Add(time.Minute)
+	time.Sleep(time.Until(next))
+	ticker := time.NewTicker(1 * time.Minute)
+	go func() {
+		for {
+			f()
+			<-ticker.C
+		}
+	}()
+}
 
 /*
 #Main Run Function
 */
 func Run() {
+	log.Println("Sending next Lesson")
 	codeByStartTime, err := MapTimeToCode("timetableFilled.json")
 	if err != nil {
 		log.Println(err)
@@ -79,14 +140,25 @@ func Run() {
 	if err != nil {
 		log.Fatal(err)
 	}
+	subjectByStartTime, err := MapTimeToSubject("timetableFilled.json")
+	if err != nil {
+		log.Fatal(err)
+	}
 	now := time.Now().Format("15:04")
 	nextTime, room, found := NextRoomForTime(roomByStartTime, now)
 	if found {
-		Status, found := NextCodeForTime(codeByStartTime, now)
+		log.Println("found Room")
+		Subject, found := NextSubjectForTime(subjectByStartTime, now)
 		if found {
-
-			fmt.Printf("Next time: %s, Room: %s\n", nextTime, room)
-			sendDiscordWebhook(room, nextTime, Status)
+			log.Println("Found Subject")
+			Status, found := NextCodeForTime(codeByStartTime, now)
+			if found {
+				log.Println("Found Status")
+				fmt.Printf("Next time: %s, Room: %s\n", nextTime, room)
+				sendDiscordWebhook(Subject, room, nextTime, Status)
+			} else {
+				sendDiscordWebhook(Subject, room, nextTime, "")
+			}
 		}
 	}
 
@@ -118,6 +190,30 @@ func NextRoomForTime(roomByStartTime map[string]string, current string) (string,
 	}
 	return "", "", false
 }
+func NextSubjectForTime(subjectByStartTime map[string]string, current string) (string, bool) {
+	layout := "15:04"
+	now, err := time.Parse(layout, current)
+	if err != nil {
+		return "", false
+	}
+	var times []time.Time
+	timeToStr := make(map[time.Time]string)
+	for t := range subjectByStartTime {
+		parsed, err := time.Parse(layout, t)
+		if err != nil {
+			continue
+		}
+		times = append(times, parsed)
+		timeToStr[parsed] = t
+	}
+	sort.Slice(times, func(i, j int) bool { return times[i].Before(times[j]) })
+	for _, t := range times {
+		if t.After(now) {
+			return subjectByStartTime[timeToStr[t]], true
+		}
+	}
+	return "", false
+}
 func NextCodeForTime(codeByStartTime map[string]string, current string) (string, bool) {
 
 	layout := "15:04"
@@ -156,7 +252,9 @@ func MapTimeToRoom(path string) (map[string]string, error) {
 	}
 	roomByStartTime := make(map[string]string)
 	for _, entry := range table {
-		roomByStartTime[entry.StartTime] = entry.Ro[0]
+		if len(entry.Ro) > 0 {
+			roomByStartTime[entry.StartTime] = entry.Ro[0]
+		}
 	}
 	if roomByStartTime == nil {
 		return nil, nil
@@ -175,7 +273,11 @@ func MapTimeToCode(path string) (map[string]string, error) {
 	}
 	codeByStartTime := make(map[string]string)
 	for _, entry := range table {
-		codeByStartTime[entry.StartTime] = entry.Code
+		if len(entry.Code) > 0 {
+			if _, exists := codeByStartTime[entry.StartTime]; !exists {
+				codeByStartTime[entry.StartTime] = entry.Code
+			}
+		}
 	}
 	return codeByStartTime, nil
 }
@@ -191,7 +293,9 @@ func MapTimeToSubject(path string) (map[string]string, error) {
 	}
 	subjectByStartTime := make(map[string]string)
 	for _, entry := range table {
-		subjectByStartTime[entry.StartTime] = entry.Su[0]
+		if len(entry.Su) > 0 {
+			subjectByStartTime[entry.StartTime] = entry.Su[0]
+		}
 	}
 	return subjectByStartTime, nil
 }
@@ -220,12 +324,12 @@ type Field struct {
 	Inline bool   `json:"inline"`
 }
 
-func sendDiscordWebhook(room string, nextTime string, Status string) {
+func sendDiscordWebhook(subject string, room string, nextTime string, Status string) {
 	log.Println("Sending Discord webhook notification...")
 	// Create a rich embed message
 	message := fmt.Sprintf(
-		"Room: %s\nStart-Time: %s\nStatus: %s",
-		room, nextTime, Status,
+		"Subject: %s\nRoom: %s\nStart-Time: %s\nStatus: %s",
+		subject, room, nextTime, Status,
 	)
 	/*embed := Embed{
 		Title:       "Next Lesson ",
@@ -276,3 +380,57 @@ func sendDiscordWebhook(room string, nextTime string, Status string) {
 		log.Printf("Discord webhook failed with status %d: %s", resp.StatusCode, string(body))
 	}
 }
+
+func sendUpdateDiscordWebhook() {
+	log.Println("Sending Discord webhook notification...")
+	// Create a rich embed message
+	message := "A lesson on your timetable has changed"
+	/*embed := Embed{
+		Title:       "Next Lesson ",
+		Description: "The next lesson is starting soon:  ",
+		Color:       3066993, // Green color
+		Timestamp:   time.Now().Format(time.RFC3339),
+		Fields: []Field{
+			{
+				Name: "New Lesson",
+				//	Value:  fmt.Sprintf("`%s`", ip),
+				Value:  fmt.Sprintf("Room: %s", room),
+				Inline: true,
+			},
+			{
+				Name:   "Start-Time",
+				Value:  fmt.Sprintf("Start time: %s", nextTime),
+				Inline: true,
+			},
+			{
+				Name:   "Status",
+				Value:  fmt.Sprintf("Status: %s", Status),
+				Inline: true,
+			},
+		},
+	}
+	*/
+	payload := DiscordWebhookPayload{
+		Content: message,
+	}
+
+	jsonData, err := json.Marshal(payload)
+	if err != nil {
+		log.Printf("Error marshaling webhook payload: %v", err)
+		return
+	}
+
+	resp, err := http.Post(discordWebhookURL, "application/json", bytes.NewBuffer(jsonData))
+	if err != nil {
+		log.Printf("Error sending Discord webhook: %v", err)
+		return
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode >= 200 && resp.StatusCode < 300 {
+		log.Println("Discord webhook notification sent successfully")
+	} else {
+		body, _ := ioutil.ReadAll(resp.Body)
+		log.Printf("Discord webhook failed with status %d: %s", resp.StatusCode, string(body))
+	}
+}