From 287c47a65ea99104e24db75b157e70f734bc6c27 Mon Sep 17 00:00:00 2001
From: Daniel Rojas <dev@axl.tl>
Date: Sat, 1 Mar 2025 18:27:54 +0100
Subject: [PATCH] Add HTML template placeholders for filename (#371)

This will e.g. enable users to replace the SVG diagram with PNG,
that is needed as a work-around when the SVG output from Graphviz
is not looking good. Suggested as work-around for Graphviz bug in
https://github.com/wireviz/WireViz/issues/175#issuecomment-2132206026

Co-authored-by: kvid <kvid@users.noreply.github.com>
---
 src/wireviz/wv_output.py | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/src/wireviz/wv_output.py b/src/wireviz/wv_output.py
index d5f686b..c9eb00a 100644
--- a/src/wireviz/wv_output.py
+++ b/src/wireviz/wv_output.py
@@ -126,6 +126,9 @@ def generate_html_output(
         "<!-- %fontname% -->": options.fontname,
         "<!-- %bgcolor% -->": options.bgcolor.html,
         "<!-- %diagram% -->": svgdata,
+        # TODO: "<!-- %diagram_png_base64% -->": base64 of png file
+        "<!-- %filename% -->": str(filename),
+        "<!-- %filename_stem% -->": Path(filename).stem,
         "<!-- %bom% -->": bom_html,
         "<!-- %bom_reversed% -->": bom_html_reversed,
         "<!-- %sheet_current% -->": "1",  # TODO: handle multi-page documents
@@ -142,9 +145,9 @@ def generate_html_output(
                     if isinstance(entry, Dict):
                         replacements[f"<!-- %{item}_{index+1}% -->"] = str(category)
                         for entry_key, entry_value in entry.items():
-                            replacements[
-                                f"<!-- %{item}_{index+1}_{entry_key}% -->"
-                            ] = html_line_breaks(str(entry_value))
+                            replacements[f"<!-- %{item}_{index+1}_{entry_key}% -->"] = (
+                                html_line_breaks(str(entry_value))
+                            )
 
         replacements['"sheetsize_default"'] = '"{}"'.format(
             metadata.get("template", {}).get("sheetsize", "")