Files
rf4-spotter/apps/api/app/community_importer.py
T

187 lines
7.7 KiB
Python

from __future__ import annotations
import json
from datetime import datetime, timezone
from typing import Any, Iterable
from urllib.parse import urlparse
from sqlalchemy import select
from sqlalchemy.orm import Session
from .community_review import publish_observation
from .models import DataSource, ExternalEntityAlias, ExternalObservation, ModerationStatus, Waterbody
SOURCE_DEFAULTS = {
"rf4db": ("RF4DB", "https://rf4db.com", 70),
"rf4stat-fishing": ("RF4-STAT fishing", "https://rf4-stat.ru/fishing/", 65),
"rf4stat-post": ("RF4-STAT posts", "https://rf4-stat.ru/posts/", 60),
"rf4map": ("RF4MAP", "https://rf4map.ru", 55),
"rf4posts-spot": ("RF4 Posts spots", "https://rf4-posts.com", 50),
}
SOURCE_HOSTS = {
"rf4db": {"rf4db.com", "download.rf4db.com"},
"rf4stat-fishing": {"rf4-stat.ru"},
"rf4stat-post": {"rf4-stat.ru"},
"rf4map": {"rf4map.ru"},
"rf4posts-spot": {"rf4-posts.com"},
}
class CommunityImportError(ValueError):
pass
def stage_observations(
session: Session, records: Iterable[dict[str, Any]], *, fetched_at: datetime | None = None,
) -> tuple[int, int]:
fetched_at = fetched_at or datetime.now(timezone.utc)
created = updated = 0
touched: list[ExternalObservation] = []
for raw in records:
payload = _json_payload(raw)
source_system = _required(payload, "source_system", 50)
if source_system not in SOURCE_DEFAULTS:
raise CommunityImportError(f"unsupported source_system: {source_system}")
external_id = _required(payload, "source_external_id", 200)
source = session.get(DataSource, source_system)
if source is None:
name, base_url, confidence = SOURCE_DEFAULTS[source_system]
source = DataSource(key=source_system, name=name, base_url=base_url, default_confidence=confidence, enabled=True)
session.add(source)
session.flush()
observation = session.scalar(select(ExternalObservation).where(
ExternalObservation.source_system == source_system,
ExternalObservation.source_external_id == external_id,
))
source_url = _required(payload, "source_url", 2000)
if urlparse(source_url).scheme != "https" or urlparse(source_url).hostname not in SOURCE_HOSTS[source_system]:
raise CommunityImportError("source_url does not match source_system")
values = {
"source_url": source_url,
"fish_name": _required(payload, "fish", 200),
"fish_external_id": _optional(payload, "fish_external_id", 200),
"waterbody_name": _required(payload, "waterbody", 200),
"waterbody_external_id": _optional(payload, "waterbody_external_id", 200),
"x": _integer(payload.get("x"), maximum=10_000),
"y": _integer(payload.get("y"), maximum=10_000),
"weight_g": _integer(payload.get("weight_g"), minimum=1, maximum=3_000_000),
"published_at": _datetime(payload.get("published_at")),
"last_seen_at": fetched_at, "payload": payload,
}
if observation is None:
observation = ExternalObservation(
source_system=source_system, source_external_id=external_id,
first_seen_at=fetched_at, status="staged", **values,
)
session.add(observation)
created += 1
else:
# Preserve the published snapshot, but withdraw it from activity until
# a moderator confirms the changed source record.
changed = any(getattr(observation, key) != values[key] for key in (
"source_url", "fish_name", "fish_external_id", "waterbody_name",
"waterbody_external_id", "x", "y", "weight_g",
)) or observation.payload != payload
if observation.status != "rejected" and changed and observation.catch_report is not None:
observation.catch_report.moderation_status = ModerationStatus.pending
observation.status = "staged"
observation.fish = None
observation.waterbody = None
observation.review_note = "Source record changed; manual mapping and publication required"
for key, value in values.items():
setattr(observation, key, value)
updated += 1
touched.append(observation)
session.commit()
for observation in touched:
_auto_publish(session, observation)
return created, updated
def _auto_publish(session: Session, observation: ExternalObservation) -> bool:
"""Publish only complete observations covered by previously reviewed aliases."""
if (
observation.catch_report_id is not None
or
observation.status not in {"staged", "mapped", "ready"}
or not observation.source.enabled
or observation.fish_external_id is None
or observation.x is None
or observation.y is None
or observation.weight_g is None
):
return False
fish_alias = session.scalar(select(ExternalEntityAlias).where(
ExternalEntityAlias.source_system == observation.source_system,
ExternalEntityAlias.entity_type == "fish",
ExternalEntityAlias.external_id == observation.fish_external_id,
))
if fish_alias is None or fish_alias.fish is None:
return False
# Waterbody: prefer external alias, fall back to exact name match
waterbody = None
if observation.waterbody_external_id is not None:
waterbody_alias = session.scalar(select(ExternalEntityAlias).where(
ExternalEntityAlias.source_system == observation.source_system,
ExternalEntityAlias.entity_type == "waterbody",
ExternalEntityAlias.external_id == observation.waterbody_external_id,
))
if waterbody_alias and waterbody_alias.waterbody:
waterbody = waterbody_alias.waterbody
if waterbody is None:
# Fallback: exact name match
waterbody = session.scalar(
select(Waterbody).where(Waterbody.name_ru == observation.waterbody_name)
)
if waterbody is None:
return False
observation.fish = fish_alias.fish
observation.waterbody = waterbody
observation.status = "ready"
observation.review_note = "Automatically matched by previously reviewed source aliases"
publish_observation(session, observation)
return True
def _json_payload(raw: dict[str, Any]) -> dict[str, Any]:
if not isinstance(raw, dict):
raise CommunityImportError("each observation must be an object")
return json.loads(json.dumps(raw, default=str))
def _required(payload: dict[str, Any], key: str, limit: int) -> str:
value = str(payload.get(key) or "").strip()
if not value or len(value) > limit:
raise CommunityImportError(f"invalid {key}")
return value
def _optional(payload: dict[str, Any], key: str, limit: int) -> str | None:
value = str(payload.get(key) or "").strip()
if len(value) > limit:
raise CommunityImportError(f"invalid {key}")
return value or None
def _integer(value: Any, *, minimum: int = -10_000, maximum: int) -> int | None:
if value is None:
return None
try:
parsed = int(value)
except (TypeError, ValueError) as exc:
raise CommunityImportError("invalid integer field") from exc
if not minimum <= parsed <= maximum:
raise CommunityImportError("integer field outside allowed range")
return parsed
def _datetime(value: Any) -> datetime | None:
if value in {None, ""}:
return None
try:
parsed = datetime.fromisoformat(str(value))
except ValueError as exc:
raise CommunityImportError("invalid published_at") from exc
return parsed if parsed.tzinfo else parsed.replace(tzinfo=timezone.utc)