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Added better invoice generation

This commit is contained in:
Dennis Eckerskorn 2025-05-28 23:44:56 +02:00
parent bcc377117d
commit b52519979c
1 changed files with 56 additions and 11 deletions
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67
memberflow-api/src/main/java/com/denniseckerskorn/services/finance_service/InvoicePdfGenerator.java
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@ -1,6 +1,9 @@
package com.denniseckerskorn.services.finance_service;
import com.denniseckerskorn.entities.finance.Invoice;
import com.denniseckerskorn.entities.finance.InvoiceLine;
import com.denniseckerskorn.entities.finance.ProductService;
import com.denniseckerskorn.entities.user_managment.users.Student;
import com.itextpdf.kernel.pdf.PdfWriter;
import com.itextpdf.kernel.pdf.PdfDocument;
import com.itextpdf.layout.Document;
@ -8,6 +11,7 @@ import com.itextpdf.layout.element.Paragraph;
import org.springframework.stereotype.Service;
import java.io.ByteArrayOutputStream;
import java.math.BigDecimal;
@Service
public class InvoicePdfGenerator {
@ -19,24 +23,65 @@ public class InvoicePdfGenerator {
PdfDocument pdf = new PdfDocument(writer);
Document doc = new Document(pdf);
doc.add(new Paragraph("Factura #" + invoice.getId()));
// Cabecera
doc.add(new Paragraph("FACTURA #" + invoice.getId()).setFontSize(16).setBold());
doc.add(new Paragraph("Fecha: " + invoice.getDate()));
doc.add(new Paragraph("Cliente: " + invoice.getUser().getName() + " " + invoice.getUser().getSurname()));
doc.add(new Paragraph("Estado: " + invoice.getStatus()));
doc.add(new Paragraph(" "));
// Información del cliente
var user = invoice.getUser();
doc.add(new Paragraph("Cliente: " + user.getName() + " " + user.getSurname()));
doc.add(new Paragraph("Email: " + user.getEmail()));
doc.add(new Paragraph("Teléfono: " + user.getPhoneNumber()));
doc.add(new Paragraph("Dirección: " + user.getAddress()));
// Si es estudiante, mostrar info básica (sin tutor ni cinturón)
Student student = user.getStudent();
if (student != null) {
doc.add(new Paragraph("DNI: " + student.getDni()));
doc.add(new Paragraph("Fecha de nacimiento: " + student.getBirthdate()));
}
doc.add(new Paragraph(" "));
doc.add(new Paragraph("Detalle de productos:"));
invoice.getInvoiceLines().forEach(line -> {
String product = line.getProductService().getName();
int qty = line.getQuantity();
var price = line.getUnitPrice();
var total = line.getSubtotal();
doc.add(new Paragraph("- " + product + " x" + qty + " - " + price + " € = " + total + " €"));
});
// Detalle de productos
doc.add(new Paragraph("Detalle de productos:").setBold());
doc.add(new Paragraph("Producto | Cant. | Precio | IVA % | Subtotal (sin IVA) | IVA"));
BigDecimal totalSubtotal = BigDecimal.ZERO;
BigDecimal totalIVA = BigDecimal.ZERO;
for (InvoiceLine line : invoice.getInvoiceLines()) {
ProductService product = line.getProductService();
String nombre = product.getName();
int cantidad = line.getQuantity();
BigDecimal unitPrice = line.getUnitPrice(); // sin IVA
BigDecimal subtotalSinIVA = unitPrice.multiply(BigDecimal.valueOf(cantidad));
BigDecimal porcentajeIVA = product.getIvaType().getPercentage();
BigDecimal iva = subtotalSinIVA.multiply(porcentajeIVA).divide(BigDecimal.valueOf(100));
totalSubtotal = totalSubtotal.add(subtotalSinIVA);
totalIVA = totalIVA.add(iva);
doc.add(new Paragraph(
nombre + " | " +
cantidad + " | " +
unitPrice + " € | " +
porcentajeIVA + "% | " +
subtotalSinIVA + " € | " +
iva + " €"
));
}
// Totales
doc.add(new Paragraph(" "));
doc.add(new Paragraph("Subtotal (sin IVA): " + totalSubtotal + " €").setBold());
doc.add(new Paragraph("IVA total: " + totalIVA + " €").setBold());
doc.add(new Paragraph("TOTAL: " + totalSubtotal.add(totalIVA) + " €").setFontSize(14).setBold());
doc.add(new Paragraph(" "));
doc.add(new Paragraph("TOTAL: " + invoice.getTotal() + " €"));
doc.add(new Paragraph("Gracias por su compra.").setItalic());
doc.close();
return out.toByteArray();