Remove outdated toc_pages.txt, add new Go modules for IHK Chemnitz PDF rendering including diagrams, tables, and TOC functionality.

main.go

@@ -4,6 +4,8 @@ import (
 	"flag"
 	"fmt"
 	"log"
+
+	"github.com/yuin/goldmark/ast"
 )
 
 func main() {
@@ -13,49 +15,59 @@ func main() {
 
 	config, doc, content, err := ParseMarkdown(*inputMd)
 	if err != nil {
-		log.Fatalf("Error parsing markdown: %v", err)
+		log.Fatalf("Failed to parse input: %v", err)
 	}
 
-	// Pass 1: Dummy render to collect TOC info
-	dummyRenderer := NewIHKRenderer(config)
-	dummyRenderer.RenderTitlePage()
-	dummyRenderer.RenderTOC() // This is the placeholder
-	dummyRenderer.pageOffset = dummyRenderer.pdf.PageNo()
-	RenderAST(doc, content, dummyRenderer)
-	dummyRenderer.RenderBibliography()
-	dummyRenderer.RenderListOfTables()
-	dummyRenderer.RenderAppendices()
-
-	// Pass 2: Real render
-	renderer := NewIHKRenderer(config)
-	renderer.tocItems = dummyRenderer.tocItems
-	renderer.tableItems = dummyRenderer.tableItems
-
-	renderer.RenderTitlePage()
-	renderer.RenderTOC()
-
-	// Main Content
-	err = RenderAST(doc, content, renderer)
-	if err != nil {
-		log.Fatalf("Error rendering PDF: %v", err)
+	// Pass 1 — dummy render to collect page numbers for the TOC, tables, and figures.
+	// The recorded page numbers are used to fill the TOC in pass 2.
+	pass1 := NewIHKRenderer(config)
+	if err = renderPipeline(pass1, doc, content); err != nil {
+		log.Fatalf("Pass 1 failed: %v", err)
 	}
 
-	// 4. Bibliography
-	renderer.RenderBibliography()
-
-	// List of Tables
-	renderer.RenderListOfTables()
-
-	// 5. Appendices
-	renderer.RenderAppendices()
-
-	// 6. Declaration of Authenticity
-	renderer.RenderDeclarationPage()
-
-	err = renderer.Save(*outputPdf)
-	if err != nil {
-		log.Fatalf("Error saving PDF: %v", err)
+	// Pass 2 — final render with the TOC index collected in pass 1.
+	// Only tocItems must be pre-seeded because RenderTOC() runs before RenderAST().
+	// tableItems and figureItems are re-populated during RenderAST() in pass 2,
+	// so they must NOT be copied here (that would produce duplicates in the lists).
+	pass2 := NewIHKRenderer(config)
+	pass2.tocItems = pass1.tocItems
+	if err = renderPipeline(pass2, doc, content); err != nil {
+		log.Fatalf("Pass 2 failed: %v", err)
 	}
 
-	fmt.Printf("Successfully generated %s\n", *outputPdf)
+	if err = pass2.Save(*outputPdf); err != nil {
+		log.Fatalf("Failed to save PDF: %v", err)
+	}
+	fmt.Printf("PDF created: %s\n", *outputPdf)
+}
+
+// renderPipeline executes the full document rendering sequence in the mandatory
+// IHK Chemnitz order:
+//
+//  1. Title page         (no page number)
+//  2. Table of contents  (Roman II)
+//  3. List of abbrev.    (Roman, from YAML — optional)
+//  4. Body via AST walk  (foreword Roman → main body Arabic from 1)
+//  5. Bibliography       (Arabic, A–Z sorted)
+//  6. List of tables     (Arabic)
+//  7. List of figures    (Arabic)
+//  8. Appendix / annex   (Arabic)
+//  9. Glossary           (Arabic, from YAML — optional)
+//  10. Declaration       (no page number)
+func renderPipeline(r *IHKRenderer, doc ast.Node, content []byte) error {
+	r.RenderTitlePage()
+	r.RenderTOC()
+	r.RenderAbbreviations()
+
+	if err := RenderAST(doc, content, r); err != nil {
+		return err
+	}
+
+	r.RenderBibliography()
+	r.RenderListOfTables()
+	r.RenderListOfFigures()
+	r.RenderAppendices()
+	r.RenderGlossary()
+	r.RenderDeclarationPage()
+	return nil
 }