From 1a967efcbdc555b8350e2b557e2e65bb87d8fa90 Mon Sep 17 00:00:00 2001
From: dankito <git@dankito.net>
Date: Fri, 15 Nov 2024 01:24:38 +0100
Subject: [PATCH] Implemented convertInvoiceToHtml()

---
 .../invoicing/creation/EInvoiceCreator.kt     | 27 +++++++++++++++++++
 .../invoicing/creation/EInvoiceCreatorTest.kt | 14 +++++++++-
 2 files changed, 40 insertions(+), 1 deletion(-)

diff --git a/e-invoicing-domain/src/main/kotlin/net/codinux/invoicing/creation/EInvoiceCreator.kt b/e-invoicing-domain/src/main/kotlin/net/codinux/invoicing/creation/EInvoiceCreator.kt
index 4d9e117..4d109d1 100644
--- a/e-invoicing-domain/src/main/kotlin/net/codinux/invoicing/creation/EInvoiceCreator.kt
+++ b/e-invoicing-domain/src/main/kotlin/net/codinux/invoicing/creation/EInvoiceCreator.kt
@@ -52,6 +52,33 @@ class EInvoiceCreator(
         exporter.export(outputFile.outputStream())
     }
 
+    // extract to EInvoiceConverter?
+    fun convertInvoiceToHtml(invoice: Invoice, outputFile: File, language: ZUGFeRDVisualizer.Language = ZUGFeRDVisualizer.Language.DE) =
+        convertInvoiceToHtml(createXRechnungXml(invoice), outputFile, language)
+
+    fun convertInvoiceToHtml(invoiceXml: String, outputFile: File, language: ZUGFeRDVisualizer.Language = ZUGFeRDVisualizer.Language.DE): String {
+        val xmlFile = File.createTempFile("Zugferd", ".xml")
+            .also { it.writeText(invoiceXml) }
+
+        val visualizer = ZUGFeRDVisualizer()
+
+        val html = visualizer.visualize(xmlFile.absolutePath, language)
+
+        outputFile.writeText(html)
+        copyResource("xrechnung-viewer.css", outputFile, ".css")
+        copyResource("xrechnung-viewer.js", outputFile, ".js")
+
+        xmlFile.delete()
+
+        return html
+    }
+
+    private fun copyResource(resourceName: String, outputFile: File, outputFileExtension: String) {
+        javaClass.classLoader.getResourceAsStream(resourceName).use {
+            it?.copyTo(File(outputFile.parentFile, outputFile.nameWithoutExtension + outputFileExtension).outputStream())
+        }
+    }
+
 
     private fun createXml(provider: IXMLProvider, invoice: Invoice): String {
         val transaction = mapper.mapToTransaction(invoice)
diff --git a/e-invoicing-domain/src/test/kotlin/net/codinux/invoicing/creation/EInvoiceCreatorTest.kt b/e-invoicing-domain/src/test/kotlin/net/codinux/invoicing/creation/EInvoiceCreatorTest.kt
index 87cf26d..5ceae93 100644
--- a/e-invoicing-domain/src/test/kotlin/net/codinux/invoicing/creation/EInvoiceCreatorTest.kt
+++ b/e-invoicing-domain/src/test/kotlin/net/codinux/invoicing/creation/EInvoiceCreatorTest.kt
@@ -1,5 +1,7 @@
 package net.codinux.invoicing.creation
 
+import assertk.assertThat
+import assertk.assertions.isNotEmpty
 import net.codinux.invoicing.test.DataGenerator
 import net.codinux.invoicing.test.InvoiceAsserter
 import org.mustangproject.ZUGFeRD.ZUGFeRDInvoiceImporter
@@ -31,8 +33,8 @@ class EInvoiceCreatorTest {
 
     @Test
     fun createZugferdPdf() {
-        val testFile = File.createTempFile("Zugferd", ".pdf")
         val invoice = createInvoice()
+        val testFile = File.createTempFile("Zugferd", ".pdf")
 
         underTest.createZugferdPdf(invoice, testFile)
 
@@ -42,6 +44,16 @@ class EInvoiceCreatorTest {
         assertInvoiceXml(xml)
     }
 
+    @Test
+    fun convertInvoiceToHtml() {
+        val invoice = createInvoice()
+        val testFile = File.createTempFile("Zugferd", ".html")
+
+        val result = underTest.convertInvoiceToHtml(invoice, testFile)
+
+        assertThat(result).isNotEmpty()
+    }
+
 
     private fun createInvoice() = DataGenerator.createInvoice()