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planet/backend/app/services/earth_interactables.py
rayd1o 5bf5c73ca0
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release: bump version to 0.66.0
2026-05-26 03:41:47 +08:00

114 lines
3.6 KiB
Python

from __future__ import annotations
from datetime import UTC, datetime
from typing import Any
from uuid import uuid4
from sqlalchemy import select
from sqlalchemy.ext.asyncio import AsyncSession
from app.core.time import to_iso8601_utc
from app.core.websocket.broadcaster import broadcaster
from app.models.earth_interactable import EarthInteractable
from app.services.earth_layer_cache import EARTH_LAYER_CACHE_PREFIX, earth_layer_cache
INTERACTABLE_ENTITY = "interactable"
INTERACTABLE_LAYER = "interactables"
def normalize_interactable_id(value: str | None = None) -> str:
raw = str(value or "").strip()
return raw or f"interactable-{uuid4().hex}"
def serialize_interactable(record: EarthInteractable) -> dict[str, Any]:
return {
"id": record.id,
"layer": record.layer,
"kind": record.kind,
"label": record.label,
"description": record.description,
"latitude": record.latitude,
"longitude": record.longitude,
"altitude": record.altitude,
"revision": record.revision,
"properties": record.properties or {},
"is_deleted": bool(record.is_deleted),
"created_at": to_iso8601_utc(record.created_at),
"updated_at": to_iso8601_utc(record.updated_at),
"deleted_at": to_iso8601_utc(record.deleted_at),
}
def interactables_to_geojson(items: list[EarthInteractable]) -> dict[str, Any]:
return {
"type": "FeatureCollection",
"features": [
{
"type": "Feature",
"id": item.id,
"geometry": {
"type": "Point",
"coordinates": [item.longitude, item.latitude],
},
"properties": serialize_interactable(item),
}
for item in items
if not item.is_deleted
],
}
def invalidate_interactable_cache(layer: str | None = None) -> int:
layer_key = str(layer or "*").strip() or "*"
deleted = earth_layer_cache.delete_pattern(
f"{EARTH_LAYER_CACHE_PREFIX}:interactables:layer:{layer_key}*"
)
if layer_key != "all":
deleted += earth_layer_cache.delete_pattern(
f"{EARTH_LAYER_CACHE_PREFIX}:interactables:layer:all*"
)
return deleted
def build_interactable_event(
*,
action: str,
record: EarthInteractable,
include_item: bool = True,
) -> dict[str, Any]:
item = serialize_interactable(record)
return {
"entity": INTERACTABLE_ENTITY,
"action": action,
"layer": record.layer,
"layers": [INTERACTABLE_LAYER],
"ids": [record.id],
"revision": record.revision,
"changed_at": item["deleted_at"] or item["updated_at"] or to_iso8601_utc(datetime.now(UTC)),
"item": item if include_item else None,
"source": "earth_interactables",
}
async def publish_interactable_event(action: str, record: EarthInteractable, *, include_item: bool = True) -> None:
await broadcaster.broadcast_earth_update(
build_interactable_event(action=action, record=record, include_item=include_item)
)
async def list_interactables(
db: AsyncSession,
*,
layer: str | None = None,
include_deleted: bool = False,
) -> list[EarthInteractable]:
stmt = select(EarthInteractable)
if layer:
stmt = stmt.where(EarthInteractable.layer == layer)
if not include_deleted:
stmt = stmt.where(EarthInteractable.is_deleted.is_(False))
stmt = stmt.order_by(EarthInteractable.updated_at.desc(), EarthInteractable.id.asc())
result = await db.execute(stmt)
return list(result.scalars().all())