small fixes in pdf generation + time calculation

Backend/endpoints/pdf.go

@@ -11,9 +11,14 @@ import (
 
 func PDFHandler(w http.ResponseWriter, r *http.Request) {
 	helper.RequiresLogin(Session, w, r)
-	startDate, err := time.Parse("2006-01-02", "2025-09-01")
+	startDate, err := parseTimestamp(r, "start", time.Now().Format("2006-01-02"))
 	if err != nil {
-		log.Println("Error")
+		log.Println("Error parsing 'start_date' time", err)
+		http.Error(w, "Timestamp 'start_date' cannot be parsed!", http.StatusBadRequest)
+		return
+	}
+	if startDate.Day() > 1 {
+		startDate = startDate.AddDate(0, 0, -(startDate.Day() - 1))
 	}
 	endDate := startDate.AddDate(0, 1, -1)
 
@@ -22,8 +27,10 @@ func PDFHandler(w http.ResponseWriter, r *http.Request) {
 		log.Println("Error getting user!")
 	}
 
+	//TODO: only accepted weeks
+
 	weeks := models.GetWorkDays(user, startDate, endDate)
 
-	log.Printf("Using Dates: %s - %s\n", startDate.String(), endDate.String())
+	// log.Printf("Using Dates: %s - %s\n", startDate.String(), endDate.String())
 	templates.PDFReportEmploye(user, weeks, startDate, endDate).Render(r.Context(), w)
 }