88 lines
3.4 KiB
Python
88 lines
3.4 KiB
Python
"""Random selection and layout shared by preview, display and scheduled jobs."""
|
|
|
|
import random
|
|
from io import BytesIO
|
|
|
|
from PIL import Image, ImageOps
|
|
|
|
from pigway_frame_flow.core.photo_preferences import eligible
|
|
from pigway_frame_flow.errors import ErrorCode as E
|
|
from pigway_frame_flow.errors import FlowError
|
|
from pigway_frame_flow.extensions.layout import LayoutInput, LayoutStudio
|
|
from pigway_frame_flow.models import TemplateContent
|
|
|
|
|
|
def prepare(service, content, device_id=None):
|
|
rng = random.SystemRandom()
|
|
ids = []
|
|
hashes = set()
|
|
if content.source_id:
|
|
from pigway_frame_flow.extensions.quality import passes, photo_quality
|
|
|
|
source = service.photo_sources.get(content.source_id)
|
|
items = eligible(
|
|
service.db,
|
|
content.source_id,
|
|
service.photo_sources.catalog(content.source_id),
|
|
)
|
|
candidates = rng.sample(items, min(len(items), content.count * 5))
|
|
for item in candidates:
|
|
try:
|
|
data, name, _ = service.photo_sources.read(
|
|
content.source_id, item["id"]
|
|
)
|
|
quality = photo_quality(data)
|
|
if not passes(quality, source) or quality["sha256"] in hashes:
|
|
continue
|
|
if source.avoid_duplicates and quality["fingerprint"] in hashes:
|
|
continue
|
|
hashes.update([quality["sha256"], quality["fingerprint"]])
|
|
with Image.open(
|
|
BytesIO(data), formats=("JPEG", "PNG", "WEBP")
|
|
) as image:
|
|
photo = ImageOps.exif_transpose(image).convert("RGB")
|
|
photo.thumbnail((2400, 2400))
|
|
output = BytesIO()
|
|
photo.save(output, "JPEG", quality=92)
|
|
asset = service.assets.put(output.getvalue(), name, "cache")
|
|
if asset["asset_id"] not in ids:
|
|
ids.append(asset["asset_id"])
|
|
except (OSError, ValueError):
|
|
continue
|
|
if len(ids) == content.count:
|
|
break
|
|
else:
|
|
rows = service.db.all(
|
|
"SELECT id AS asset_id FROM assets WHERE kind='images' AND NOT EXISTS (SELECT 1 FROM photo_preferences p WHERE p.source_id='@assets' AND p.item_id=assets.id AND p.excluded=1) ORDER BY created_at DESC LIMIT 10000"
|
|
)
|
|
ids = rng.sample(
|
|
[row["asset_id"] for row in rows], min(content.count, len(rows))
|
|
)
|
|
if len(ids) != content.count:
|
|
raise FlowError(
|
|
E.INVALID_REQUEST, "Not enough distinct photos for requested count", 422
|
|
)
|
|
values = content.model_dump(exclude={"type", "source_id", "count", "profile"})
|
|
if content.orientation == "auto":
|
|
from pigway_frame_flow.renderers.frame_geometry import frame_canvas
|
|
|
|
display = (
|
|
service.registry.get(device_id or service.settings.device_id)
|
|
.device()
|
|
.display
|
|
)
|
|
width, height = frame_canvas(display)
|
|
values["orientation"] = "landscape" if width > height else "portrait"
|
|
plan = LayoutStudio(service.renderer).plan(
|
|
LayoutInput(
|
|
asset_ids=ids,
|
|
**values,
|
|
)
|
|
)
|
|
return TemplateContent(
|
|
type="template",
|
|
template="poster" if content.style == "poster" else "collage",
|
|
data={"layout": plan.model_dump()},
|
|
profile=content.profile,
|
|
)
|