better domain isolation

internal/writing/html/writer.go

@@ -1,8 +1,8 @@
 // Package html renders an internal.AggregatorWriter as a complete,
-// standalone HTML document built around the same table fragment produced by
-// table.Printer.RenderHTML. The document includes the Bootstrap 5.3
-// stylesheet via CDN and embeds the raw table fragment without HTML-escaping
-// it so the result opens directly in a browser.
+// standalone HTML document: the report table fragment (built from the
+// shared table definition in internal/writing/internal/tabledef, so it can
+// never drift from the terminal layout) embedded in a Bootstrap-styled page
+// with a translated title and generation timestamp.
 package html
 
 import (
@@ -13,15 +13,9 @@ import (
 	"time"
 
 	"github.com/nmoniz/any2anexoj/internal"
-	"github.com/nmoniz/any2anexoj/internal/writing/table"
+	"github.com/nmoniz/any2anexoj/internal/writing/internal/tabledef"
 )
 
-// translator is the contract the HTML writer relies on for localized
-// document text such as the page title. *writing.Localizer satisfies it.
-type translator interface {
-	Translate(key string, count int, values map[string]any) string
-}
-
 // bootstrapCSSURL is the jsDelivr CDN URL for Bootstrap 5.3.3.
 const bootstrapCSSURL = "https://cdn.jsdelivr.net/npm/[email protected]/dist/css/bootstrap.min.css"
 
@@ -31,20 +25,17 @@ const bootstrapIntegrity = "sha384-QWTKZyjpPEjISv5WaRU9OFeRpok6YctnYmDr5pNlyT2bR
 // Writer writes a complete HTML document for an AggregatorWriter.
 type Writer struct {
 	output     io.Writer
-	printer    *table.Printer
-	translator translator
+	translator tabledef.Translator
 	lang       string
 }
 
-// NewWriter builds a Writer that writes a complete HTML document to
-// w. The printer is used purely as a source for the raw <table> fragment via
-// RenderHTML; this writer never invokes Render or any method that writes to
-// printer's own io.Writer. The document title is looked up from the
-// "report_title" translation via tr, so callers never pass a pre-baked title.
-func NewWriter(w io.Writer, printer *table.Printer, tr translator, lang string) *Writer {
+// NewWriter builds a Writer that writes a complete HTML document to w. The
+// report table is rendered from the shared table definition via tr, and the
+// document title is looked up from the "report_title" translation via tr,
+// so callers never pass a pre-baked title.
+func NewWriter(w io.Writer, tr tabledef.Translator, lang string) *Writer {
 	return &Writer{
 		output:     w,
-		printer:    printer,
 		translator: tr,
 		lang:       lang,
 	}
@@ -63,10 +54,7 @@ var documentTemplate = template.Must(template.New("html").Parse(documentTemplate
 // fragment from aw so the rendered <tr> count reflects aw's current items and
 // no rows are duplicated across invocations.
 func (hw *Writer) Render(aw *internal.AggregatorWriter) error {
-	if hw.printer == nil {
-		return fmt.Errorf("html: nil printer")
-	}
-	fragment := hw.printer.RenderHTML(aw)
+	fragment := hw.renderTableFragment(aw)
 	title := hw.translator.Translate("report_title", 1, nil)
 	data := struct {
 		Lang          string