58 lines
2.1 KiB
Python
58 lines
2.1 KiB
Python
"""Source-only rendition for the current 410 × 502 watch display."""
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import hashlib
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import json
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import logging
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from datetime import datetime
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from zoneinfo import ZoneInfo
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from pigway_frame_flow.errors import FlowError
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from pigway_frame_flow.renderers.images import convert
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from pigway_frame_flow.storage.database import encode
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logger = logging.getLogger(__name__)
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SIZE = (410, 502)
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def publish(service, device_id, asset_id, data=None):
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# Templates and old gallery assets have no verified undecorated source.
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row = service.db.one(
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"SELECT payload FROM asset_sources WHERE asset_id=?", (asset_id,)
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)
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source = json.loads(row["payload"]) if row else {}
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if source.get("type") != "photo_source":
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return None
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try:
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if data is None:
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data, _, _ = service.photo_sources.read(
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source["source_id"], source["item_id"], target_size=SIZE
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)
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rendered = convert(data, "cover", "color", size=SIZE)
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asset = service.assets.put(rendered, "watch.jpg", "cache")
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now = datetime.now(ZoneInfo(service.settings.timezone))
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result = {
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"asset_id": asset["asset_id"],
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"url": asset["url"],
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"width": SIZE[0],
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"height": SIZE[1],
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"date": now.date().isoformat(),
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"timezone": service.settings.timezone,
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"generated_at": now.isoformat(),
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"sha256": hashlib.sha256(rendered).hexdigest(),
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"bytes": len(rendered),
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"source": source,
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"fit": "cover",
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"source_rendition": "preview"
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if service.photo_sources.get(source["source_id"]).kind == "synology-photos"
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else "source",
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}
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service.db.execute(
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"INSERT OR REPLACE INTO app_config VALUES(?,?)",
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("wrist-thumbnail:" + device_id, encode(result)),
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)
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return result
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except (FlowError, OSError, ValueError):
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# An auxiliary rendition must never cause a successful upload to replay.
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logger.warning("Watch thumbnail generation failed for asset %s", asset_id)
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return None
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