seperated pdf-generate endpoint + added new helper in Time

Backend/endpoints/pdf-create.go

@@ -89,10 +89,71 @@ func renderPDF(days []typstDay, metadata typstMetadata) (bytes.Buffer, error) {
 	return output, nil
 }
 
+func PDFCreateController(w http.ResponseWriter, r *http.Request) {
+	helper.RequiresLogin(Session, w, r)
+	switch r.Method {
+	case http.MethodGet:
+		user, err := models.GetUserFromSession(Session, r.Context())
+		if err != nil {
+			log.Println("Error getting user!")
+			return
+		}
+		pp := paramParser.New(r.URL.Query())
+		startDate := pp.ParseTimestampFallback("start_date", time.DateOnly, time.Now())
+		var members []models.User = make([]models.User, 0)
+		output, err := createReports(user, members, startDate)
+		if err != nil {
+			slog.Warn("Could not create pdf report", slog.Any("Error", err))
+		}
+
+		w.Header().Set("Content-type", "application/pdf")
+		output.WriteTo(w)
+		w.WriteHeader(200)
+
+	default:
+		http.Error(w, "Method not allowed!", http.StatusMethodNotAllowed)
+	}
+}
+
+func createReports(user models.User, employes []models.User, startDate time.Time) (bytes.Buffer, error) {
+	if startDate.Day() > 1 {
+		startDate = startDate.AddDate(0, 0, -(startDate.Day() - 1))
+	}
+	endDate := startDate.AddDate(0, 1, -1)
+	return createEmployeReport(user, startDate, endDate)
+}
+
+func createEmployeReport(employee models.User, startDate, endDate time.Time) (bytes.Buffer, error) {
+	targetHours := (employee.ArbeitszeitProWoche() / 5) * time.Duration(helper.GetWorkingDays(startDate, endDate))
+	workingDays := models.GetDays(employee, startDate, endDate, false)
+
+	var actualHours time.Duration
+	for _, day := range workingDays {
+		actualHours += day.TimeWorkVirtual(employee)
+	}
+	worktimeBalance := actualHours - targetHours
+
+	typstDays, err := convertDaysToTypst(workingDays, employee)
+	if err != nil {
+		log.Panicf("Failed to convert days!")
+	}
+
+	metadata := typstMetadata{
+		EmployeeName:     fmt.Sprintf("%s %s", employee.Vorname, employee.Name),
+		TimeRange:        fmt.Sprintf("%s - %s", startDate.Format("02.01.2006"), endDate.Format("02.01.2006")),
+		Overtime:         helper.FormatDurationFill(worktimeBalance, true),
+		WorkTime:         helper.FormatDurationFill(actualHours, true),
+		OvertimeTotal:    "",
+		CurrentTimestamp: time.Now().Format("02.01.2006 - 15:04 Uhr"),
+	}
+
+	return renderPDF(typstDays, metadata)
+}
+
 func PDFHandler(w http.ResponseWriter, r *http.Request) {
 	helper.RequiresLogin(Session, w, r)
-	pp := paramParser.New(r.URL.Query())
-	startDate := pp.ParseTimestamp("start_date", time.DateOnly, time.Now())
+	startDate := time.Now()
+
 	if startDate.Day() > 1 {
 		startDate = startDate.AddDate(0, 0, -(startDate.Day() - 1))
 	}