Files
svg-backend/backend/app/repositories/scheme_groups.py

293 lines
9.5 KiB
Python

from uuid import uuid4
from fastapi import HTTPException, status
from sqlalchemy import asc, select
from app.db.session import AsyncSessionLocal
from app.models.scheme_group import SchemeGroupRecord
from app.models.scheme_seat import SchemeSeatRecord
def _conflict(message: str) -> HTTPException:
return HTTPException(
status_code=status.HTTP_422_UNPROCESSABLE_ENTITY,
detail={
"code": "group_uniqueness_violation",
"message": message,
},
)
async def _ensure_group_uniqueness(
*,
session,
scheme_version_id: str,
group_id: str | None,
element_id: str | None,
exclude_group_record_id: str | None = None,
) -> None:
if group_id:
stmt = select(SchemeGroupRecord).where(
SchemeGroupRecord.scheme_version_id == scheme_version_id,
SchemeGroupRecord.group_id == group_id,
)
if exclude_group_record_id:
stmt = stmt.where(SchemeGroupRecord.group_record_id != exclude_group_record_id)
existing = (await session.execute(stmt)).scalar_one_or_none()
if existing is not None:
raise _conflict(f"Group with group_id='{group_id}' already exists in current draft version")
if element_id:
stmt = select(SchemeGroupRecord).where(
SchemeGroupRecord.scheme_version_id == scheme_version_id,
SchemeGroupRecord.element_id == element_id,
)
if exclude_group_record_id:
stmt = stmt.where(SchemeGroupRecord.group_record_id != exclude_group_record_id)
existing = (await session.execute(stmt)).scalar_one_or_none()
if existing is not None:
raise _conflict(f"Group with element_id='{element_id}' already exists in current draft version")
async def replace_scheme_version_groups(
*,
scheme_id: str,
scheme_version_id: str,
groups: list[dict],
) -> None:
async with AsyncSessionLocal() as session:
existing_result = await session.execute(
select(SchemeGroupRecord).where(SchemeGroupRecord.scheme_version_id == scheme_version_id)
)
existing_rows = list(existing_result.scalars().all())
for row in existing_rows:
await session.delete(row)
seen_group_ids: set[str] = set()
seen_element_ids: set[str] = set()
for item in groups:
group_id = item.get("group_id")
element_id = item.get("id")
if group_id:
if group_id in seen_group_ids:
raise _conflict(f"Duplicate group_id='{group_id}' in replacement payload")
seen_group_ids.add(group_id)
if element_id:
if element_id in seen_element_ids:
raise _conflict(f"Duplicate element_id='{element_id}' in replacement payload")
seen_element_ids.add(element_id)
row = SchemeGroupRecord(
group_record_id=item["group_record_id"] if "group_record_id" in item and item["group_record_id"] else uuid4().hex,
scheme_id=scheme_id,
scheme_version_id=scheme_version_id,
element_id=element_id,
group_id=group_id,
name=item.get("group_id"),
classes_raw=str(item.get("classes")),
)
session.add(row)
await session.commit()
async def clone_scheme_version_groups(
*,
source_scheme_version_id: str,
target_scheme_version_id: str,
) -> None:
async with AsyncSessionLocal() as session:
await clone_scheme_version_groups_in_session(
session=session,
source_scheme_version_id=source_scheme_version_id,
target_scheme_version_id=target_scheme_version_id,
)
await session.commit()
async def clone_scheme_version_groups_in_session(
*,
session,
source_scheme_version_id: str,
target_scheme_version_id: str,
) -> None:
result = await session.execute(
select(SchemeGroupRecord).where(SchemeGroupRecord.scheme_version_id == source_scheme_version_id)
)
rows = list(result.scalars().all())
seen_group_ids: set[str] = set()
seen_element_ids: set[str] = set()
for row in rows:
if row.group_id:
if row.group_id in seen_group_ids:
raise _conflict(f"Duplicate group_id='{row.group_id}' while cloning draft")
seen_group_ids.add(row.group_id)
if row.element_id:
if row.element_id in seen_element_ids:
raise _conflict(f"Duplicate element_id='{row.element_id}' while cloning draft")
seen_element_ids.add(row.element_id)
cloned = SchemeGroupRecord(
group_record_id=uuid4().hex,
scheme_id=row.scheme_id,
scheme_version_id=target_scheme_version_id,
element_id=row.element_id,
group_id=row.group_id,
name=row.name,
classes_raw=row.classes_raw,
)
session.add(cloned)
async def list_scheme_version_groups(scheme_version_id: str) -> list[SchemeGroupRecord]:
async with AsyncSessionLocal() as session:
result = await session.execute(
select(SchemeGroupRecord)
.where(SchemeGroupRecord.scheme_version_id == scheme_version_id)
.order_by(asc(SchemeGroupRecord.created_at), asc(SchemeGroupRecord.id))
)
return list(result.scalars().all())
async def update_scheme_version_group_by_record_id(
*,
scheme_version_id: str,
group_record_id: str,
**update_data,
) -> tuple[SchemeGroupRecord, str | None]:
async with AsyncSessionLocal() as session:
result = await session.execute(
select(SchemeGroupRecord).where(
SchemeGroupRecord.scheme_version_id == scheme_version_id,
SchemeGroupRecord.group_record_id == group_record_id,
)
)
row = result.scalar_one_or_none()
if row is None:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail="Group record not found in current draft version",
)
if "group_id" in update_data:
await _ensure_group_uniqueness(
session=session,
scheme_version_id=scheme_version_id,
group_id=update_data["group_id"],
element_id=row.element_id,
exclude_group_record_id=group_record_id,
)
old_group_id = row.group_id
if "group_id" in update_data:
row.group_id = update_data["group_id"]
if "name" in update_data:
row.name = update_data["name"]
await session.commit()
await session.refresh(row)
return row, old_group_id
async def create_scheme_version_group(
*,
scheme_id: str,
scheme_version_id: str,
element_id: str | None,
group_id: str,
name: str | None,
classes_raw: str | None,
) -> SchemeGroupRecord:
async with AsyncSessionLocal() as session:
await _ensure_group_uniqueness(
session=session,
scheme_version_id=scheme_version_id,
group_id=group_id,
element_id=element_id,
)
row = SchemeGroupRecord(
group_record_id=uuid4().hex,
scheme_id=scheme_id,
scheme_version_id=scheme_version_id,
element_id=element_id,
group_id=group_id,
name=name,
classes_raw=classes_raw,
)
session.add(row)
await session.commit()
await session.refresh(row)
return row
async def delete_scheme_version_group_by_record_id(
*,
scheme_version_id: str,
group_record_id: str,
) -> None:
async with AsyncSessionLocal() as session:
group_result = await session.execute(
select(SchemeGroupRecord).where(
SchemeGroupRecord.scheme_version_id == scheme_version_id,
SchemeGroupRecord.group_record_id == group_record_id,
)
)
group = group_result.scalar_one_or_none()
if group is None:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail="Group record not found in current draft version",
)
if group.group_id:
seats_result = await session.execute(
select(SchemeSeatRecord).where(
SchemeSeatRecord.scheme_version_id == scheme_version_id,
SchemeSeatRecord.group_id == group.group_id,
)
)
seats = list(seats_result.scalars().all())
if seats:
raise HTTPException(
status_code=status.HTTP_409_CONFLICT,
detail="Cannot delete group while seats still reference it",
)
await session.delete(group)
await session.commit()
async def get_scheme_version_group_by_record_id(
*,
scheme_version_id: str,
group_record_id: str,
) -> SchemeGroupRecord:
async with AsyncSessionLocal() as session:
result = await session.execute(
select(SchemeGroupRecord).where(
SchemeGroupRecord.scheme_version_id == scheme_version_id,
SchemeGroupRecord.group_record_id == group_record_id,
)
)
row = result.scalar_one_or_none()
if row is None:
raise HTTPException(
status_code=status.HTTP_404_NOT_FOUND,
detail="Group record not found in current draft version",
)
return row