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TK-Wiki-Newsletter/app/services/newsletter.py
smueller f7ce3b65fe Update newsletter HTML templates for improved styling and consistency 
- Adjusted padding in the Outlook HTML format for better layout and readability.
- Added a space in the footer message for enhanced clarity in the internal newsletter notice.
2026-07-07 16:09:33 +02:00

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from datetime import datetime, timedelta
from html import escape
from typing import Any, TypedDict
from urllib.parse import quote
WIKI_ARTICLE_BASE = "https://www.thomas-krenn.com/de/wiki/"
WIKI_HOME_URL = "https://www.thomas-krenn.com/de/wiki/Hauptseite"
ORG_NAME = "Thomas-Krenn.AG"
TK_LOGO_URL = "https://www.thomas-krenn.com/res/pics/tk_logo_340px.png"
LINE = "=" * 78
SUBLINE = "-" * 78
FONT = "Arial, Helvetica, sans-serif"
# Thomas-Krenn.AG Corporate Design (Orange + Anthrazit)
COLOR_TK_ORANGE = "#ED6B06"
COLOR_TK_ORANGE_DARK = "#C95605"
COLOR_TK_ORANGE_LIGHT = "#FFF4ED"
COLOR_TK_ORANGE_BORDER = "#F5C9A6"
COLOR_TK_GRAY_DARK = "#4A4A4A"
COLOR_TK_GRAY = "#6B6B6B"
COLOR_TK_GRAY_LIGHT = "#F5F5F5"
COLOR_TEXT = "#1A1A1A"
COLOR_MUTED = COLOR_TK_GRAY
COLOR_HEADING = COLOR_TK_GRAY_DARK
COLOR_LINK = COLOR_TK_ORANGE
COLOR_BORDER = "#E0E0E0"
COLOR_BG = COLOR_TK_GRAY_LIGHT
COLOR_PAGE_BG = "#ECEEF1"
COLOR_WHITE = "#FFFFFF"
COLOR_ACCENT_NEW = COLOR_TK_ORANGE
COLOR_ACCENT_NEW_BG = COLOR_TK_ORANGE_LIGHT
COLOR_ACCENT_EDIT = COLOR_TK_GRAY_DARK
COLOR_ACCENT_EDIT_BG = "#EEEEEE"
class DisplayOptions(TypedDict):
show_date: bool
show_user: bool
show_category: bool
DEFAULT_DISPLAY: DisplayOptions = {
"show_date": True,
"show_user": True,
"show_category": True,
}
def parse_display_options(
show_date: str | None = None,
show_user: str | None = None,
show_category: str | None = None,
) -> DisplayOptions:
return {
"show_date": show_date == "true",
"show_user": show_user == "true",
"show_category": show_category == "true",
}
IGNORED_ARTICLE_TITLES = frozenset({"Hauptseite"})
def filter_articles(
articles: list[dict[str, Any]],
category_filter: str | None = None,
) -> list[dict[str, Any]]:
articles = [a for a in articles if a.get("title") not in IGNORED_ARTICLE_TITLES]
if not category_filter:
return articles
wanted = category_filter.strip().lower()
return [
a
for a in articles
if any(c.lower() == wanted for c in a.get("categories", []))
]
def split_articles_by_type(articles: list[dict[str, Any]]) -> tuple[list[dict[str, Any]], list[dict[str, Any]]]:
sorted_articles = sorted(articles, key=lambda a: a.get("timestamp", ""), reverse=True)
new_articles: list[dict[str, Any]] = []
edited_articles: list[dict[str, Any]] = []
new_titles: set[str] = set()
for item in sorted_articles:
title = item.get("title", "")
if not title or item.get("type") != "new":
continue
if title not in new_titles:
new_articles.append(item)
new_titles.add(title)
seen_edited: set[str] = set()
for item in sorted_articles:
title = item.get("title", "")
if not title or title in new_titles or title in seen_edited:
continue
edited_articles.append(item)
seen_edited.add(title)
return new_articles, edited_articles
def create_subject(month_label: str | None = None, days: int = 30) -> str:
label = month_label or f"{days} Tage"
return f"Neue Wiki-Artikel Veröffentlichungen vom {label} | Wiki-Redaktion"
_MONTHS_DE = [
"Januar", "Februar", "März", "April", "Mai", "Juni",
"Juli", "August", "September", "Oktober", "November", "Dezember",
]
def _month_label(dt: datetime) -> str:
return f"{_MONTHS_DE[dt.month - 1]} {dt.year}"
def resolve_period(mode: str, days: int) -> dict[str, Any]:
"""Berechnet Start/Ende und Beschriftung für einen Zeitraum-Modus.
- "last_month": voriger Kalendermonat (z. B. 01.06.–01.07.)
- sonst: die letzten N Tage
"""
now = datetime.now()
if mode == "last_month":
first_this_month = now.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
last_day_prev = first_this_month - timedelta(days=1)
start = last_day_prev.replace(day=1, hour=0, minute=0, second=0, microsecond=0)
end = first_this_month
return {
"mode": "last_month",
"start": start,
"end": end,
"start_str": start.strftime("%d.%m.%Y"),
"end_str": end.strftime("%d.%m.%Y"),
"label": _month_label(start),
"month_label": _month_label(start),
"days": max(1, (end - start).days),
}
days = max(1, min(days, 90))
end = now
start = now - timedelta(days=days)
return {
"mode": "days",
"start": start,
"end": end,
"start_str": start.strftime("%d.%m.%Y"),
"end_str": end.strftime("%d.%m.%Y"),
"label": f"{days} Tage",
"month_label": _month_label(end),
"days": days,
}
def parse_highlights(raw: str | None) -> list[str]:
"""Zerlegt das Highlight-Eingabefeld (Titel pro Zeile) in eine Liste."""
if not raw:
return []
return [line.strip() for line in raw.splitlines() if line.strip()]
def _match_highlights(
articles: list[dict[str, Any]],
highlights: list[str] | None,
) -> list[dict[str, Any]]:
"""Ordnet Highlight-Titel den geladenen Artikeln zu (max. 3)."""
if not highlights:
return []
result: list[dict[str, Any]] = []
for wanted in highlights:
key = wanted.strip().lower()
if not key:
continue
for article in articles:
if article.get("title", "").strip().lower() == key:
result.append(article)
break
if len(result) >= 3:
break
return result
def _summary_sentence(total: int) -> str:
if total == 0:
return "Aktuell wurden keine neuen Wiki-Artikel gefunden."
if total == 1:
return "Es gibt einen neuen bzw. aktualisierten Wiki-Artikel."
return f"Es gibt {total} neue bzw. aktualisierte Wiki-Artikel."
# ---------------------------------------------------------------------------
# Plain-Text
# ---------------------------------------------------------------------------
def create_plain_text(
articles: list[dict[str, Any]],
days: int,
display: DisplayOptions | None = None,
category: str = "",
editor_tip: str = "",
highlights: list[str] | None = None,
period_label: str | None = None,
period: tuple[str, str] | None = None,
article_type: str = "all",
contact_email: str = "",
) -> str:
display = display or DEFAULT_DISPLAY
new_articles, edited_articles = split_articles_by_type(articles)
show_new = article_type in ("all", "new")
show_edited = article_type in ("all", "edited")
period_start, period_end = period if period else _period_range(days)
period_desc = period_label or f"{days} Tage"
created_at = datetime.now().strftime("%d.%m.%Y %H:%M")
lines = [
LINE,
f"{ORG_NAME.upper()} – INTERNER WIKI-NEWSLETTER",
LINE,
f"Zeitraum: {period_start} bis {period_end} ({period_desc})",
f"Erstellt am: {created_at}",
]
if category.strip():
lines.append(f"Kategorie: {category.strip()}")
lines.extend(
[
"",
"Liebe Kolleginnen und Kollegen,",
"",
_intro_sentence(period_start, period_end),
"",
]
)
lines.extend(_plain_contact_line(contact_email))
highlight_articles = _match_highlights(new_articles + edited_articles, highlights)
if highlight_articles:
lines.extend([SUBLINE, "TOP HIGHLIGHTS", SUBLINE, ""])
for idx, item in enumerate(highlight_articles, start=1):
lines.append(f" {idx}. {item.get('title', 'Ohne Titel')}")
lines.append(f" {_article_url(item.get('title', ''))}")
lines.append("")
if not new_articles and not edited_articles:
lines.extend(
[
SUBLINE,
"HINWEIS",
SUBLINE,
"Im gewählten Zeitraum wurden keine passenden Wiki-Änderungen gefunden.",
"",
]
)
lines.extend(_plain_editor_tip(editor_tip))
lines.append(_plain_footer(new_articles, edited_articles))
return "\n".join(lines).strip()
if show_new:
lines.extend(_plain_section("NEUE ARTIKEL", new_articles, display, empty_text="Keine neuen Artikel im Zeitraum."))
lines.append("")
if show_edited:
lines.extend(
_plain_section(
"BEARBEITETE ARTIKEL",
edited_articles,
display,
empty_text="Keine bearbeiteten Artikel im Zeitraum.",
)
)
lines.append("")
lines.extend(_plain_editor_tip(editor_tip))
lines.append(_plain_footer(new_articles, edited_articles))
return "\n".join(lines).strip()
def _plain_contact_line(contact_email: str) -> list[str]:
if contact_email.strip():
return [
f"Fragen oder ein Themenwunsch? Meldet euch gern beim Wiki-Team ({contact_email.strip()}).",
"",
]
return ["Fragen oder ein Themenwunsch? Meldet euch gern beim Wiki-Team.", ""]
def _plain_editor_tip(editor_tip: str) -> list[str]:
text = (editor_tip or "").strip()
if not text:
return []
lines = [SUBLINE, "REDAKTIONSNOTIZ", SUBLINE, ""]
lines.extend(f" {line}" for line in text.splitlines())
lines.append("")
return lines
# ---------------------------------------------------------------------------
# HTML (Standard, für SMTP-Versand & Quelltext)
# ---------------------------------------------------------------------------
def create_html(
articles: list[dict[str, Any]],
days: int,
display: DisplayOptions | None = None,
category: str = "",
editor_tip: str = "",
highlights: list[str] | None = None,
period_label: str | None = None,
period: tuple[str, str] | None = None,
article_type: str = "all",
month_label: str | None = None,
contact_email: str = "",
) -> str:
display = display or DEFAULT_DISPLAY
new_articles, edited_articles = split_articles_by_type(articles)
show_new = article_type in ("all", "new")
show_edited = article_type in ("all", "edited")
period_start, period_end = period if period else _period_range(days)
total = len(new_articles) + len(edited_articles)
subject = escape(create_subject(month_label or period_label, days))
preheader = escape(_summary_sentence(total))
period_label = escape(f"{period_start} – {period_end}")
summary_text = escape(_summary_sentence(total))
highlight_articles = _match_highlights(new_articles + edited_articles, highlights)
highlights_section = _html_highlights(highlight_articles)
if not new_articles and not edited_articles:
body = _html_empty_card("Für diesen Zeitraum wurden keine passenden Wiki-Änderungen gefunden.")
else:
sections = []
if show_new:
sections.append(_html_section("Neue Artikel", new_articles, display, "Keine neuen Artikel im Zeitraum.", kind="new"))
if show_edited:
sections.append(_html_section("Bearbeitete Artikel", edited_articles, display, "Keine bearbeiteten Artikel im Zeitraum.", kind="edited"))
body = "\n".join(sections)
summary_section = (
f'<tr><td style="padding:24px 32px 0 32px;" class="mobile-padding">{_html_summary(new_articles, edited_articles)}</td></tr>'
)
editor_tip_section = _html_editor_tip(editor_tip)
category_hint = ""
if category.strip():
category_hint = (
f'<tr><td style="padding:0 32px 4px 32px;font-family:{FONT};" class="mobile-padding">'
f'<p style="margin:0;font-family:{FONT};font-size:13px;line-height:20px;color:{COLOR_MUTED};">'
f'<strong style="color:{COLOR_HEADING};">Filter:</strong> Kategorie {escape(category.strip())}</p></td></tr>'
)
if contact_email.strip():
ce = escape(contact_email.strip())
contact_html = (
f'Fragen oder ein Themenwunsch? '
f'<a href="mailto:{ce}" style="color:{COLOR_TK_ORANGE};text-decoration:underline;">Meldet euch gern beim Wiki-Team</a>.'
)
else:
contact_html = "Fragen oder ein Themenwunsch? Meldet euch gern beim Wiki-Team."
contact_section = (
f'<tr><td style="padding:16px 32px 24px 32px;" class="mobile-padding">'
f'<p style="margin:8px 0 0;font-family:{FONT};font-size:15px;line-height:24px;color:{COLOR_TEXT};">{contact_html}</p>'
f"</td></tr>"
)
return f"""<!DOCTYPE html>
<html lang="de" xmlns="http://www.w3.org/1999/xhtml" xmlns:o="urn:schemas-microsoft-com:office:office">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>{subject}</title>
<style type="text/css">
html, body {{ margin:0 !important; padding:0 !important; width:100% !important; background:{COLOR_PAGE_BG}; }}
table, td {{ border-collapse:collapse; mso-table-lspace:0pt; mso-table-rspace:0pt; }}
img {{ border:0; outline:none; text-decoration:none; -ms-interpolation-mode:bicubic; }}
a {{ text-decoration:none; }}
.preheader {{ display:none !important; visibility:hidden; opacity:0; color:transparent; height:0; width:0; max-height:0; max-width:0; overflow:hidden; mso-hide:all; }}
@media only screen and (max-width: 700px) {{
.email-container {{ width:100% !important; }}
.mobile-padding {{ padding-left:16px !important; padding-right:16px !important; }}
.mobile-headline {{ font-size:28px !important; line-height:34px !important; }}
.mobile-card-title {{ font-size:18px !important; line-height:25px !important; }}
}}
</style>
<!--[if mso]>
<style type="text/css">
body, table, td, p, a, li, h1, h2, h3, span, strong {{ font-family: Arial, sans-serif !important; }}
</style>
<![endif]-->
</head>
<body style="margin:0;padding:0;background:{COLOR_PAGE_BG};font-family:{FONT};color:{COLOR_TEXT};">
<div class="preheader">{preheader}&nbsp;&zwnj;&nbsp;&zwnj;&nbsp;&zwnj;</div>
<center role="article" aria-roledescription="email" lang="de" style="width:100%;background:{COLOR_PAGE_BG};">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" bgcolor="{COLOR_PAGE_BG}" style="width:100%;background:{COLOR_PAGE_BG};">
<tr>
<td align="center" style="padding:22px 10px;">
<table role="presentation" width="700" cellpadding="0" cellspacing="0" border="0" class="email-container" style="width:100%;max-width:700px;background:{COLOR_WHITE};border-top:4px solid {COLOR_TK_ORANGE};">
<tr>
<td align="center" style="padding:24px 32px 18px 32px;background:{COLOR_TK_GRAY_DARK};" class="mobile-padding">
<img src="{TK_LOGO_URL}" width="190" alt="Thomas-Krenn Logo" style="display:block;margin:0 auto;border:0;outline:none;text-decoration:none;height:auto;">
</td>
</tr>
<tr>
<td style="padding:0 32px;" class="mobile-padding">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="width:100%;background:{COLOR_TK_GRAY_DARK};">
<tr>
<td style="padding:28px 26px;font-family:{FONT};">
<div style="font-size:12px;line-height:16px;font-weight:bold;color:{COLOR_TK_ORANGE};letter-spacing:1px;text-transform:uppercase;">Thomas-Krenn Wiki Update</div>
<div class="mobile-headline" style="font-size:32px;line-height:38px;font-weight:bold;color:{COLOR_WHITE};margin-top:10px;">Die neuesten Wiki-Artikel</div>
<div style="font-size:16px;line-height:25px;color:#DDDDDD;margin-top:10px;">{period_label} &nbsp;|&nbsp; {summary_text}</div>
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td style="padding:22px 32px 6px 32px;" class="mobile-padding">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="background:{COLOR_TK_ORANGE_LIGHT};border-left:4px solid {COLOR_TK_ORANGE};">
<tr>
<td style="padding:18px 20px;font-family:{FONT};font-size:15px;line-height:24px;color:{COLOR_TEXT};">
<p style="margin:0 0 10px;font-family:{FONT};">Servus,</p>
<p style="margin:0;font-family:{FONT};">hier ist deine Übersicht mit den neuesten Beiträgen aus dem Thomas-Krenn-Wiki vom {escape(period_start)} bis {escape(period_end)}.</p>
</td>
</tr>
</table>
</td>
</tr>
{contact_section}
{category_hint}
{highlights_section}
{body}
{summary_section}
{editor_tip_section}
<tr>
<td align="center" style="padding:28px 32px 4px 32px;" class="mobile-padding">
{_cta_button(WIKI_HOME_URL, "Zum Thomas-Krenn-Wiki →")}
</td>
</tr>
<tr>
<td style="padding:24px 32px 28px 32px;" class="mobile-padding">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">
<tr>
<td style="font-family:{FONT};font-size:15px;line-height:24px;color:{COLOR_TEXT};">
Viele Grüße<br>
Euer Thomas-Krenn-Wiki Team
</td>
</tr>
</table>
</td>
</tr>
<tr>
<td style="background:{COLOR_TK_GRAY_DARK};padding:22px 20px;text-align:center;font-family:{FONT};">
<div style="font-size:12px;line-height:19px;color:#EEF0F2;">
Thomas-Krenn.AG | Speltenbach-Steinäcker 1 | D-94078 Freyung<br>
Tel.: +49 8551 9150 0 | Fax: +49 8551 9150 55 |
<a href="{WIKI_HOME_URL}" target="_blank" style="color:{COLOR_TK_ORANGE};text-decoration:underline;">thomas-krenn.com</a><br>
<span style="color:#AEB2B7;">Automatisch erstellter interner Newsletter &middot; Nur für den internen Gebrauch </span>
</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
</center>
</body>
</html>"""
def _cta_button(url: str, label: str) -> str:
return (
f'<table role="presentation" cellpadding="0" cellspacing="0" border="0" style="margin:0 auto;">'
f'<tr><td bgcolor="{COLOR_TK_ORANGE}" style="background:{COLOR_TK_ORANGE};border-radius:6px;">'
f'<a href="{escape(url)}" target="_blank" style="display:inline-block;padding:12px 22px;font-family:{FONT};'
f'font-size:14px;line-height:18px;font-weight:bold;color:{COLOR_WHITE};text-decoration:none;">{escape(label)}</a>'
f'</td></tr></table>'
)
def _html_empty_card(text: str) -> str:
return (
f'<tr><td style="padding:8px 32px 8px 32px;" class="mobile-padding">'
f'<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" '
f'style="width:100%;background:{COLOR_WHITE};border:1px solid {COLOR_BORDER};border-radius:12px;">'
f'<tr><td style="padding:20px 22px;font-family:{FONT};font-size:15px;line-height:23px;color:{COLOR_TEXT};">'
f'{escape(text)}</td></tr></table></td></tr>'
)
def _html_highlights(items: list[dict[str, Any]]) -> str:
if not items:
return ""
rows = ""
for idx, item in enumerate(items[:3], start=1):
url = escape(_article_url(item.get("title", "")))
title = escape(item.get("title", "Ohne Titel"))
rows += (
f'<tr><td style="padding:0 0 8px 0;font-family:{FONT};font-size:15px;line-height:22px;color:{COLOR_TEXT};">'
f'<span style="display:inline-block;min-width:22px;font-weight:bold;color:{COLOR_TK_ORANGE};">{idx}.</span> '
f'<a href="{url}" target="_blank" style="color:{COLOR_TEXT};text-decoration:none;">{title}</a></td></tr>'
)
return (
f'<tr><td style="padding:8px 32px 4px 32px;" class="mobile-padding">'
f'<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" '
f'style="width:100%;background:{COLOR_TK_ORANGE_LIGHT};border:1px solid {COLOR_TK_ORANGE_BORDER};border-radius:12px;">'
f'<tr><td style="padding:16px 18px 8px 18px;font-family:{FONT};font-size:11px;line-height:15px;'
f'color:{COLOR_TK_ORANGE_DARK};font-weight:bold;letter-spacing:.8px;text-transform:uppercase;">Top Highlights</td></tr>'
f'<tr><td style="padding:0 18px 12px 18px;"><table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0">{rows}</table></td></tr>'
f'</table></td></tr>'
)
def _html_editor_tip(editor_tip: str) -> str:
text = (editor_tip or "").strip()
if not text:
return ""
body = escape(text).replace("\n", "<br>")
return (
f'<tr><td style="padding:16px 32px 4px 32px;" class="mobile-padding">'
f'<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" '
f'style="width:100%;background:{COLOR_TK_GRAY_LIGHT};border:1px solid {COLOR_BORDER};border-radius:12px;">'
f'<tr><td style="padding:16px 18px 8px 18px;font-family:{FONT};font-size:11px;line-height:15px;'
f'color:{COLOR_HEADING};font-weight:bold;letter-spacing:.8px;text-transform:uppercase;">Redaktionsnotiz</td></tr>'
f'<tr><td style="padding:0 18px 16px 18px;font-family:{FONT};font-size:15px;line-height:24px;color:{COLOR_TEXT};">{body}</td></tr>'
f'</table></td></tr>'
)
def _html_section(
heading: str,
items: list[dict[str, Any]],
display: DisplayOptions,
empty_text: str,
kind: str = "edited",
) -> str:
accent = COLOR_ACCENT_NEW if kind == "new" else COLOR_ACCENT_EDIT
heading_html = (
f'<tr><td style="padding:26px 32px 8px 32px;font-family:{FONT};" class="mobile-padding">'
f'<div style="font-family:{FONT};font-size:18px;line-height:24px;font-weight:bold;color:{COLOR_HEADING};'
f'border-bottom:2px solid {accent};padding-bottom:8px;">{escape(heading)} '
f'<span style="color:{accent};">({len(items)})</span></div></td></tr>'
)
if not items:
return heading_html + (
f'<tr><td style="padding:8px 32px 4px 32px;font-family:{FONT};font-size:14px;line-height:22px;'
f'color:{COLOR_MUTED};" class="mobile-padding">{escape(empty_text)}</td></tr>'
)
cards = "".join(_html_article_card(idx, item, display, kind) for idx, item in enumerate(items, start=1))
return heading_html + cards
def _html_article_card(idx: int, item: dict[str, Any], display: DisplayOptions, kind: str) -> str:
accent = COLOR_ACCENT_NEW if kind == "new" else COLOR_ACCENT_EDIT
eyebrow = "Neuer Beitrag" if kind == "new" else "Aktualisierter Beitrag"
title = escape(item.get("title", "Ohne Titel"))
url = escape(_article_url(item.get("title", "")))
meta_bits: list[str] = []
if display["show_date"]:
meta_bits.append(f"am {_format_ts(item.get('timestamp'))}")
if display["show_user"]:
meta_bits.append(f"von {escape(str(item.get('user', '-')))}")
meta_html = ""
if meta_bits:
meta_html = (
f'<tr><td style="padding:0 22px 12px 22px;font-family:{FONT};font-size:13px;line-height:20px;'
f'color:{COLOR_MUTED};">Veröffentlicht {" ".join(meta_bits)}.</td></tr>'
)
cat_html = ""
if display["show_category"]:
cat = ", ".join(item.get("categories", [])) or "Keine Kategorie"
cat_html = (
f'<tr><td style="padding:0 22px 12px 22px;font-family:{FONT};font-size:12px;line-height:18px;'
f'color:{COLOR_MUTED};">Kategorie: {escape(cat)}</td></tr>'
)
return (
f'<tr><td style="padding:0 32px 16px 32px;" class="mobile-padding">'
f'<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" '
f'style="width:100%;background:{COLOR_WHITE};border:1px solid {COLOR_BORDER};border-left:4px solid {accent};border-radius:12px;">'
f'<tr><td style="padding:16px 22px 4px 22px;font-family:{FONT};font-size:11px;line-height:16px;font-weight:bold;'
f'letter-spacing:.7px;text-transform:uppercase;color:{accent};">{idx}. {eyebrow}</td></tr>'
f'<tr><td class="mobile-card-title" style="padding:0 22px 8px 22px;font-family:{FONT};font-size:20px;'
f'line-height:27px;font-weight:bold;color:{COLOR_HEADING};">'
f'<a href="{url}" target="_blank" style="color:{COLOR_HEADING};text-decoration:none;">{title}</a></td></tr>'
f'{meta_html}{cat_html}'
f'<tr><td style="padding:2px 22px 18px 22px;">{_cta_button(url, "Zum Beitrag →")}</td></tr>'
f'</table></td></tr>'
)
def _html_summary(new_articles: list[dict[str, Any]], edited_articles: list[dict[str, Any]]) -> str:
total = len(new_articles) + len(edited_articles)
return f"""<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="margin-top:4px;font-family:{FONT};">
<tr>
<td style="padding:0 0 10px;font-family:{FONT};font-size:14px;line-height:20px;font-weight:bold;color:{COLOR_HEADING};">Zusammenfassung</td>
</tr>
<tr>
<td style="font-family:{FONT};">
<table role="presentation" width="100%" cellpadding="0" cellspacing="0" border="0" style="font-family:{FONT};">
<tr>
<td width="33%" style="padding:18px 12px;background:{COLOR_ACCENT_NEW_BG};border:1px solid {COLOR_BORDER};text-align:center;font-family:{FONT};">
<div style="font-family:{FONT};font-size:28px;line-height:32px;font-weight:bold;color:{COLOR_ACCENT_NEW};">{len(new_articles)}</div>
<div style="margin-top:4px;font-family:{FONT};font-size:12px;line-height:16px;color:{COLOR_MUTED};">Neue Artikel</div>
</td>
<td width="4" style="font-size:0;line-height:0;">&nbsp;</td>
<td width="33%" style="padding:18px 12px;background:{COLOR_ACCENT_EDIT_BG};border:1px solid {COLOR_BORDER};text-align:center;font-family:{FONT};">
<div style="font-family:{FONT};font-size:28px;line-height:32px;font-weight:bold;color:{COLOR_ACCENT_EDIT};">{len(edited_articles)}</div>
<div style="margin-top:4px;font-family:{FONT};font-size:12px;line-height:16px;color:{COLOR_MUTED};">Bearbeitet</div>
</td>
<td width="4" style="font-size:0;line-height:0;">&nbsp;</td>
<td width="33%" style="padding:18px 12px;background:{COLOR_BG};border:1px solid {COLOR_BORDER};text-align:center;font-family:{FONT};">
<div style="font-family:{FONT};font-size:28px;line-height:32px;font-weight:bold;color:{COLOR_HEADING};">{total}</div>
<div style="margin-top:4px;font-family:{FONT};font-size:12px;line-height:16px;color:{COLOR_MUTED};">Gesamt</div>
</td>
</tr>
</table>
</td>
</tr>
</table>"""
# ---------------------------------------------------------------------------
# Outlook/Word-kompatibles HTML (UI-Vorschau & Copy-Paste in Outlook)
# ---------------------------------------------------------------------------
OUTLOOK_FONT = "Arial, sans-serif"
OUTLOOK_TEXT = COLOR_TEXT
OUTLOOK_MUTED = COLOR_TK_GRAY
OUTLOOK_LINK = COLOR_TK_ORANGE
OUTLOOK_HEADING = COLOR_TK_GRAY_DARK
OUTLOOK_BORDER = COLOR_BORDER
OUTLOOK_WHITE = COLOR_WHITE
OUTLOOK_ORANGE = COLOR_TK_ORANGE
OUTLOOK_GRAY_DARK = COLOR_TK_GRAY_DARK
def _outlook_td_attrs(
bg: str = OUTLOOK_WHITE,
*,
colspan: int | None = None,
width: str | None = None,
valign: str | None = None,
extra_style: str = "",
) -> str:
"""Tabellen-Zelle mit Outlook-Dunkelmodus-Schutz (data-ogsb/data-ogsc)."""
parts = [
f'bgcolor="{bg}"',
f'style="background-color:{bg} !important;color:{OUTLOOK_TEXT} !important;{extra_style}"',
f'data-ogsb="{bg}"',
]
if colspan:
parts.insert(0, f'colspan="{colspan}"')
if width:
parts.append(f'width="{width}"')
if valign:
parts.append(f'valign="{valign}"')
return " ".join(parts)
def _outlook_font(
text: str,
*,
color: str = OUTLOOK_TEXT,
size: str = "2",
bold: bool = False,
) -> str:
inner = escape(text)
if bold:
inner = f"<b>{inner}</b>"
return (
f'<span style="color:{color} !important;" data-ogsc="{color}">'
f'<font face="Arial" color="{color}" size="{size}">{inner}</font>'
f"</span>"
)
def _outlook_link(title: str, url: str, *, bold: bool = True, color: str = OUTLOOK_LINK, size: str = "2") -> str:
weight = "<b>" if bold else ""
weight_end = "</b>" if bold else ""
return (
f'<a href="{escape(url)}" '
f'style="color:{color} !important;text-decoration:none !important;mso-style-priority:100 !important;">'
f'<span style="color:{color} !important;" data-ogsc="{color}">'
f'<font face="Arial" color="{color}" size="{size}">'
f"{weight}{escape(title)}{weight_end}"
f"</font></span></a>"
)
def _outlook_cta(url: str, label: str) -> str:
return (
f'<table cellpadding="0" cellspacing="0" border="0"><tr>'
f'<td bgcolor="{OUTLOOK_ORANGE}" style="background-color:{OUTLOOK_ORANGE} !important;padding:9px 16px;" data-ogsb="{OUTLOOK_ORANGE}">'
f'{_outlook_link(label, url, color="#FFFFFF")}'
f'</td></tr></table>'
)
def create_outlook_html(
articles: list[dict[str, Any]],
days: int,
display: DisplayOptions | None = None,
category: str = "",
editor_tip: str = "",
highlights: list[str] | None = None,
period_label: str | None = None,
period: tuple[str, str] | None = None,
article_type: str = "all",
month_label: str | None = None,
contact_email: str = "",
) -> str:
"""Word/Outlook-kompatibles HTML mit font-Tags und bgcolor (überlebt Einfügen in Outlook)."""
display = display or DEFAULT_DISPLAY
new_articles, edited_articles = split_articles_by_type(articles)
show_new = article_type in ("all", "new")
show_edited = article_type in ("all", "edited")
period_start, period_end = period if period else _period_range(days)
total = len(new_articles) + len(edited_articles)
subject = escape(create_subject(month_label or period_label, days))
period_label = f"{period_start} – {period_end}"
summary_text = _summary_sentence(total)
highlight_articles = _match_highlights(new_articles + edited_articles, highlights)
highlights_rows = _outlook_highlights(highlight_articles)
if not new_articles and not edited_articles:
body_rows = f"""<tr>
<td {_outlook_td_attrs(extra_style="padding:12px 0;")}>
{_outlook_font("Für diesen Zeitraum wurden keine passenden Wiki-Änderungen gefunden.", color=OUTLOOK_MUTED)}
</td>
</tr>"""
else:
sections = []
if show_new:
sections.append(_outlook_section("Neue Artikel", new_articles, display, "Keine neuen Artikel im Zeitraum.", kind="new"))
if show_edited:
sections.append(_outlook_section("Bearbeitete Artikel", edited_articles, display, "Keine bearbeiteten Artikel im Zeitraum.", kind="edited"))
body_rows = "\n".join(sections)
category_block = ""
if category.strip():
category_block = (
f'<p style="margin:0 0 10px;">'
f'{_outlook_font("Filter: ", color=OUTLOOK_HEADING, bold=True)}'
f'{_outlook_font(f"Kategorie {category.strip()}", color=OUTLOOK_MUTED, size="1")}'
f"</p>"
)
summary_row = f"""<tr>
<td {_outlook_td_attrs(extra_style=f"padding:16px 0 0;border-top:1px solid {OUTLOOK_BORDER};")}>
{_outlook_font("Zusammenfassung: ", color=OUTLOOK_HEADING, bold=True, size="1")}
{_outlook_font(f"{len(new_articles)} neu · {len(edited_articles)} bearbeitet · {total} gesamt", color=OUTLOOK_MUTED, size="1")}
</td>
</tr>"""
editor_tip_row = _outlook_editor_tip(editor_tip)
if contact_email.strip():
contact_block = (
f'<p style="margin:12px 0 20px;">'
f'{_outlook_font("Fragen oder ein Themenwunsch? ", size="1")}'
f'{_outlook_link("Meldet euch gern beim Wiki-Team", f"mailto:{contact_email.strip()}", color=OUTLOOK_ORANGE, bold=False, size="1")}'
f'{_outlook_font(".", size="1")}'
f"</p>"
)
else:
contact_block = (
f'<p style="margin:12px 0 20px;">'
f'{_outlook_font("Fragen oder ein Themenwunsch? Meldet euch gern beim Wiki-Team.", size="1")}'
f"</p>"
)
return f"""<!DOCTYPE html>
<html lang="de" xmlns="http://www.w3.org/1999/xhtml" xmlns:o="urn:schemas-microsoft-com:office:office" xmlns:w="urn:schemas-microsoft-com:office:word">
<head>
<meta charset="utf-8">
<meta name="ProgId" content="Word.Document">
<meta name="Generator" content="Microsoft Word 15">
<meta name="color-scheme" content="light dark">
<meta name="supported-color-schemes" content="light dark">
<title>{subject}</title>
<!--[if mso]>
<style type="text/css">
body, table, td, p, font, span, strong {{ font-family: Arial, sans-serif !important; }}
a, span.MsoHyperlink, span.MsoHyperlinkFollowed {{
color: {OUTLOOK_LINK} !important;
text-decoration: none !important;
}}
</style>
<![endif]-->
<style type="text/css">
:root {{ color-scheme: light dark; supported-color-schemes: light dark; }}
body {{ background-color: {OUTLOOK_WHITE} !important; color: {OUTLOOK_TEXT} !important; }}
a, a:link, a:visited, a:hover, a:active {{
color: {OUTLOOK_LINK} !important;
text-decoration: none !important;
}}
</style>
</head>
<body bgcolor="{OUTLOOK_WHITE}" style="margin:0;padding:16px;background-color:{OUTLOOK_WHITE} !important;color:{OUTLOOK_TEXT} !important;" data-ogsb="{OUTLOOK_WHITE}">
<table width="640" cellpadding="0" cellspacing="0" border="0" align="center" bgcolor="{OUTLOOK_WHITE}" style="width:640px;background-color:{OUTLOOK_WHITE} !important;" data-ogsb="{OUTLOOK_WHITE}">
<tr>
<td {_outlook_td_attrs(bg=OUTLOOK_ORANGE, extra_style="height:5px;font-size:0;line-height:0;")}>&nbsp;</td>
</tr>
<tr>
<td {_outlook_td_attrs(bg=OUTLOOK_GRAY_DARK, extra_style="padding:16px 20px;text-align:center;")} align="center">
<img src="{TK_LOGO_URL}" width="180" alt="Thomas-Krenn Logo" style="display:block;margin:0 auto;border:0;height:auto;">
</td>
</tr>
<tr>
<td {_outlook_td_attrs(bg=OUTLOOK_GRAY_DARK, extra_style="padding:18px 20px;")}>
{_outlook_font("Thomas-Krenn Wiki Update", color=OUTLOOK_ORANGE, size="1", bold=True)}<br>
{_outlook_font("Die neuesten Wiki-Artikel", color=OUTLOOK_WHITE, size="5", bold=True)}<br>
{_outlook_font(f"{period_label} | {summary_text}", color="#DDDDDD", size="2")}
</td>
</tr>
<tr>
<td {_outlook_td_attrs(extra_style="padding:20px;")}>
<p style="margin:0 0 8px;">{_outlook_font("Servus,")}</p>
<p style="margin:0 0 16px;">{_outlook_font(f"hier ist deine Übersicht mit den neuesten Beiträgen aus dem Thomas-Krenn-Wiki vom {period_start} bis {period_end}.")}</p>
{contact_block}
{category_block}
{highlights_rows}
<table width="100%" cellpadding="0" cellspacing="0" border="0" bgcolor="{OUTLOOK_WHITE}" style="background-color:{OUTLOOK_WHITE} !important;" data-ogsb="{OUTLOOK_WHITE}">
{body_rows}
{summary_row}
{editor_tip_row}
<tr>
<td {_outlook_td_attrs(extra_style="padding:20px 0 24px;")}>
{_outlook_cta(WIKI_HOME_URL, "Zum Thomas-Krenn-Wiki →")}
</td>
</tr>
<tr>
<td {_outlook_td_attrs(extra_style=f"padding:20px 0 0;border-top:1px solid {OUTLOOK_BORDER};")}>
{_outlook_font(f"Automatisch erstellter interner Newsletter · Nur für den Gebrauch bei {ORG_NAME}", color=OUTLOOK_MUTED, size="1")}
</td>
</tr>
</table>
</td>
</tr>
</table>
</body>
</html>"""
def _outlook_highlights(items: list[dict[str, Any]]) -> str:
if not items:
return ""
rows = ""
for idx, item in enumerate(items[:3], start=1):
url = _article_url(item.get("title", ""))
rows += (
f'<tr><td {_outlook_td_attrs(bg=COLOR_TK_ORANGE_LIGHT, extra_style="padding:3px 0;")}>'
f'{_outlook_font(f"{idx}. ", color=OUTLOOK_ORANGE, bold=True)}'
f'{_outlook_link(item.get("title", "Ohne Titel"), url, color=OUTLOOK_TEXT, bold=False)}'
f'</td></tr>'
)
return (
f'<table width="100%" cellpadding="0" cellspacing="0" border="0" '
f'bgcolor="{COLOR_TK_ORANGE_LIGHT}" style="background-color:{COLOR_TK_ORANGE_LIGHT} !important;'
f'border:1px solid {COLOR_TK_ORANGE_BORDER};margin:0 0 12px;" data-ogsb="{COLOR_TK_ORANGE_LIGHT}">'
f'<tr><td {_outlook_td_attrs(bg=COLOR_TK_ORANGE_LIGHT, extra_style="padding:12px 14px 6px;")}>'
f'{_outlook_font("TOP HIGHLIGHTS", color=COLOR_TK_ORANGE_DARK, size="1", bold=True)}</td></tr>'
f'<tr><td {_outlook_td_attrs(bg=COLOR_TK_ORANGE_LIGHT, extra_style="padding:0 14px 12px;")}>'
f'<table width="100%" cellpadding="0" cellspacing="0" border="0">{rows}</table></td></tr>'
f'</table>'
)
def _outlook_editor_tip(editor_tip: str) -> str:
text = (editor_tip or "").strip()
if not text:
return ""
body = "<br>".join(_outlook_font(line) for line in text.splitlines())
return (
f'<tr><td {_outlook_td_attrs(bg=COLOR_TK_GRAY_LIGHT, extra_style=f"padding:14px 16px;margin-top:16px;border:1px solid {OUTLOOK_BORDER};")}>'
f'{_outlook_font("Redaktionsnotiz", color=OUTLOOK_HEADING, size="1", bold=True)}<br>'
f'{body}</td></tr>'
)
def _outlook_meta_line(item: dict[str, Any], display: DisplayOptions) -> str:
parts: list[str] = []
if display["show_date"]:
parts.append(f"Datum: {_format_ts(item.get('timestamp'))}")
if display["show_user"]:
parts.append(f"Benutzer: {item.get('user', '-')}")
if display["show_category"]:
cat = ", ".join(item.get("categories", [])) or "Keine Kategorie"
parts.append(f"Kategorie: {cat}")
return " | ".join(parts)
def _outlook_section(
heading: str,
items: list[dict[str, Any]],
display: DisplayOptions,
empty_text: str,
kind: str = "edited",
) -> str:
accent = OUTLOOK_ORANGE if kind == "new" else OUTLOOK_GRAY_DARK
header = f"""<tr>
<td {_outlook_td_attrs(extra_style=f"padding:18px 0 8px;border-bottom:2px solid {accent};")}>
{_outlook_font(f"{heading} ({len(items)})", color=accent, size="3", bold=True)}
</td>
</tr>"""
if not items:
return header + f"""<tr>
<td {_outlook_td_attrs(extra_style="padding:8px 0;")}>
{_outlook_font(empty_text, color=OUTLOOK_MUTED)}
</td>
</tr>"""
cards = "\n".join(_outlook_article_card(idx, item, display, kind) for idx, item in enumerate(items, start=1))
return header + cards
def _outlook_article_card(idx: int, item: dict[str, Any], display: DisplayOptions, kind: str) -> str:
accent = OUTLOOK_ORANGE if kind == "new" else OUTLOOK_GRAY_DARK
eyebrow = "NEUER BEITRAG" if kind == "new" else "AKTUALISIERTER BEITRAG"
title = item.get("title", "Ohne Titel")
url = _article_url(item.get("title", ""))
meta = _outlook_meta_line(item, display)
meta_html = f'<br>{_outlook_font(meta, color=OUTLOOK_MUTED, size="1")}' if meta else ""
return f"""<tr>
<td {_outlook_td_attrs(extra_style="padding:8px 0;")}>
<table width="100%" cellpadding="0" cellspacing="0" border="0" bgcolor="{OUTLOOK_WHITE}" style="background-color:{OUTLOOK_WHITE} !important;border:1px solid {OUTLOOK_BORDER};" data-ogsb="{OUTLOOK_WHITE}">
<tr>
<td {_outlook_td_attrs(bg=accent, width="6", extra_style="font-size:0;line-height:0;width:6px;")}>&nbsp;</td>
<td {_outlook_td_attrs(extra_style="padding:16px 20px;")}>
{_outlook_font(f"{idx}. {eyebrow}", color=accent, size="1", bold=True)}<br>
<span style="display:inline-block;margin:6px 0 2px;">{_outlook_link(title, url, color=OUTLOOK_TEXT, size="4")}</span>{meta_html}<br>
<span style="display:inline-block;margin-top:12px;">{_outlook_cta(url, "Zum Beitrag →")}</span>
</td>
</tr>
</table>
</td>
</tr>"""
# ---------------------------------------------------------------------------
# Plain-Text-Helfer
# ---------------------------------------------------------------------------
def _plain_section(
heading: str,
items: list[dict[str, Any]],
display: DisplayOptions,
empty_text: str,
) -> list[str]:
lines = [SUBLINE, f"{heading} ({len(items)})", SUBLINE, ""]
if not items:
lines.append(f" {empty_text}")
lines.append("")
return lines
for idx, item in enumerate(items, start=1):
lines.extend(_plain_item(idx, item, display))
return lines
def _plain_item(idx: int, item: dict[str, Any], display: DisplayOptions) -> list[str]:
title = item.get("title", "Ohne Titel")
url = _article_url(item.get("title", ""))
meta_parts: list[str] = []
if display["show_date"]:
meta_parts.append(_format_ts(item.get("timestamp")))
if display["show_user"]:
meta_parts.append(str(item.get("user", "-")))
if display["show_category"]:
cat = ", ".join(item.get("categories", [])) or "Keine Kategorie"
meta_parts.append(cat)
lines = [f" {idx}. {title}", f" {url}"]
if meta_parts:
lines.append(f" ({' | '.join(meta_parts)})")
lines.append("")
return lines
def _plain_footer(
new_articles: list[dict[str, Any]],
edited_articles: list[dict[str, Any]],
) -> str:
total = len(new_articles) + len(edited_articles)
return "\n".join(
[
SUBLINE,
"ZUSAMMENFASSUNG",
SUBLINE,
f" Neue Artikel: {len(new_articles)}",
f" Bearbeitete Artikel: {len(edited_articles)}",
f" Gesamt: {total}",
"",
f"Wiki: {WIKI_HOME_URL}",
"",
SUBLINE,
"Dieser Newsletter wurde automatisch erstellt und ist nur für den internen",
f"Gebrauch bei {ORG_NAME} bestimmt.",
LINE,
]
)
# ---------------------------------------------------------------------------
# Gemeinsame Helfer
# ---------------------------------------------------------------------------
def _article_url(title: str) -> str:
return f"{WIKI_ARTICLE_BASE}{quote(title.replace(' ', '_'))}"
def article_url(title: str) -> str:
return _article_url(title)
def _intro_sentence(period_start: str, period_end: str) -> str:
return (
f"Im Thomas-Krenn-Wiki wurden im Zeitraum vom {period_start} bis {period_end} "
"folgende Artikel neu veröffentlicht bzw. aktualisiert:"
)
def _period_range(days: int) -> tuple[str, str]:
end = datetime.now()
start = end - timedelta(days=days)
return start.strftime("%d.%m.%Y"), end.strftime("%d.%m.%Y")
def _format_ts(value: str | None) -> str:
if not value:
return "-"
try:
dt = datetime.strptime(value, "%Y-%m-%dT%H:%M:%SZ")
return dt.strftime("%d.%m.%Y %H:%M")
except ValueError:
return value
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