Add split-output to cli

cmd/covergen/main.go

@@ -26,6 +26,7 @@ var customer = pflag.StringP("customer", "c", "", "Customer name for cover")
 var numberPrefix = pflag.String("number-prefix", "offerte", "Prefix to use for number")
 var color = pflag.String("color", "random", "Selects a color to use for the grid highlight. Valid choices: ['random', 'red', 'blue', 'yellow', 'green']")
 var output = pflag.StringP("output", "o", "cover.pdf", "File to output to")
+var output2 = pflag.StringP("output-back", "b", "", "Output front and back separately")
 
 func init() {
 	log.Logger = zerolog.New(zerolog.ConsoleWriter{Out: os.Stderr, TimeFormat: time.RFC3339}).With().Timestamp().Logger()
@@ -69,19 +70,39 @@ func main() {
 	}
 
 	*customer = strings.ReplaceAll(*customer, "\\n", "\n")
-
-	pdf, err := covergen.GenerateInvoice(covergen.CoverSettings{
+	settings := covergen.CoverSettings{
 		Number:       *number,
 		NumberPrefix: *numberPrefix,
 		CustomerName: *customer,
 		HLColor:      chosenColor,
-	})
-
-	if err != nil {
-		log.Fatal().Err(err).Msg("Failed to render invoice")
 	}
 
-	if err := pdf.OutputFileAndClose(*output); err != nil {
-		log.Fatal().Err(err).Msg("Failed to write invoice to disk")
+	if *output2 == "" {
+		pdf, err := covergen.GenerateInvoice(settings)
+
+		if err != nil {
+			log.Fatal().Err(err).Msg("Failed to render invoice")
+		}
+
+		if err := pdf.OutputFileAndClose(*output); err != nil {
+			log.Fatal().Err(err).Msg("Failed to write invoice to disk")
+		}
+	} else {
+		front, err := covergen.GenerateFrontCover(settings)
+		if err != nil {
+			log.Fatal().Err(err).Msg("Failed to render front")
+		}
+		if err := front.OutputFileAndClose(*output); err != nil {
+			log.Fatal().Err(err).Msg("Failed to write front to disk")
+		}
+
+		back, err := covergen.GenerateBackCover(settings)
+		if err != nil {
+			log.Fatal().Err(err).Msg("Failed to render back")
+		}
+		if err := back.OutputFileAndClose(*output2); err != nil {
+			log.Fatal().Err(err).Msg("Failed to write back to disk")
+		}
 	}
+
 }