Fix page numbering: use correct python-docx field insertion for PAGE and NUMPAGES

scraibe/email_sender.py

@@ -343,46 +343,46 @@ def _setup_docx_style(doc, enable_line_numbering=False):
     p = footer.paragraphs[0]
     p.alignment = WD_ALIGN_PARAGRAPH.RIGHT
 
-    # PAGE field
+    # PAGE field (current page number)
     run_page = p.add_run()
-    run_page.font.name = "Courier"
-    run_page.font.size = Pt(10)
+    r_page = run_page._r
+    r_page.clear()  # remove default empty run content
 
     fldCharBegin = OxmlElement("w:fldChar")
     fldCharBegin.set(qn("w:fldCharType"), "begin")
-    run_page._r.addprevious(fldCharBegin)
+    r_page.append(fldCharBegin)
 
     instrTextPage = OxmlElement("w:instrText")
     instrTextPage.set(qn("xml:space"), "preserve")
     instrTextPage.text = "PAGE"
-    run_page._r.addprevious(instrTextPage)
+    r_page.append(instrTextPage)
 
     fldCharEnd = OxmlElement("w:fldChar")
     fldCharEnd.set(qn("w:fldCharType"), "end")
-    run_page._r.addprevious(fldCharEnd)
+    r_page.append(fldCharEnd)
 
-    # " of " text
+    # Static text: " of "
     run_of = p.add_run(" of ")
     run_of.font.name = "Courier"
     run_of.font.size = Pt(10)
 
-    # NUMPAGES field
+    # NUMPAGES field (total pages)
     run_numpages = p.add_run()
-    run_numpages.font.name = "Courier"
-    run_numpages.font.size = Pt(10)
+    r_numpages = run_numpages._r
+    r_numpages.clear()
 
     fldCharBegin2 = OxmlElement("w:fldChar")
     fldCharBegin2.set(qn("w:fldCharType"), "begin")
-    run_numpages._r.addprevious(fldCharBegin2)
+    r_numpages.append(fldCharBegin2)
 
     instrTextNumpages = OxmlElement("w:instrText")
     instrTextNumpages.set(qn("xml:space"), "preserve")
     instrTextNumpages.text = "NUMPAGES"
-    run_numpages._r.addprevious(instrTextNumpages)
+    r_numpages.append(instrTextNumpages)
 
     fldCharEnd2 = OxmlElement("w:fldChar")
     fldCharEnd2.set(qn("w:fldCharType"), "end")
-    run_numpages._r.addprevious(fldCharEnd2)
+    r_numpages.append(fldCharEnd2)
 
 
 def _add_cover_page(doc, doc_type, date, description):