Illustrations/web/core/context_processors.py

69 lines
2.7 KiB
Python

from pathlib import Path
from django.contrib.staticfiles import finders
from .models_ann import Announcement, AnnouncementDismissal
import os
def app_version(request):
"""
Expose APP_VERSION (read from <project>/version.txt). Used in base.html.
"""
version_file = Path(__file__).resolve().parent.parent / "version.txt"
try:
return {"APP_VERSION": version_file.read_text(encoding="utf-8").strip()}
except FileNotFoundError:
return {"APP_VERSION": "v0.0.0"}
def available_themes(request):
"""
Return clean theme names by scanning /static/themes/*.css.
Handles both 'themes/foo.css' and '/.../themes/foo.css' paths and
collapses fingerprinted files (e.g., 'midnight.400a2f.css' -> 'midnight').
"""
bases = set()
# Try listing the 'themes' directory directly.
for finder in finders.get_finders():
try:
for path, storage in finder.list(['themes']):
if path.endswith('.css'):
filename = os.path.basename(path)[:-4] # drop .css
base = filename.split('.', 1)[0] # drop fingerprint
if base:
bases.add(base)
except Exception:
pass
# Fallback: scan all and filter anything under themes/
try:
for path, storage in finder.list([]):
if path.endswith('.css') and ('/themes/' in path or path.startswith('themes/')):
filename = os.path.basename(path)[:-4]
base = filename.split('.', 1)[0]
if base:
bases.add(base)
except Exception:
pass
# If nothing found, fall back to common names that actually exist.
if not bases:
for name in ["classic", "dawn", "forest", "midnight", "mint", "sandstone", "original"]:
if finders.find(f"themes/{name}.css"):
bases.add(name)
preferred = ["classic", "dawn", "forest", "midnight", "mint", "sandstone", "original"]
names = sorted(bases, key=lambda n: (preferred.index(n) if n in preferred else len(preferred) + 1, n))
return {"available_themes": names}
def pending_announcement(request):
"""
Latest active announcement the user has not dismissed (for Search page).
"""
user = getattr(request, "user", None)
if not (user and user.is_authenticated):
return {"pending_announcement": None}
current = [a for a in Announcement.objects.all() if a.is_current()]
for a in current:
if not AnnouncementDismissal.objects.filter(user=user, announcement=a).exists():
return {"pending_announcement": a}
return {"pending_announcement": None}