import json
from uuid import uuid4

from sqlalchemy import asc, select

from app.db.session import AsyncSessionLocal
from app.models.audit_event import AuditEventRecord


async def create_audit_event(
    *,
    scheme_id: str,
    event_type: str,
    object_type: str,
    object_ref: str | None = None,
    details: dict | None = None,
) -> str:
    audit_event_id = uuid4().hex

    async with AsyncSessionLocal() as session:
        row = AuditEventRecord(
            audit_event_id=audit_event_id,
            scheme_id=scheme_id,
            event_type=event_type,
            object_type=object_type,
            object_ref=object_ref,
            details_json=json.dumps(details, ensure_ascii=False) if details is not None else None,
        )
        session.add(row)
        await session.commit()

    return audit_event_id


async def list_audit_events(scheme_id: str) -> list[AuditEventRecord]:
    async with AsyncSessionLocal() as session:
        result = await session.execute(
            select(AuditEventRecord)
            .where(AuditEventRecord.scheme_id == scheme_id)
            .order_by(asc(AuditEventRecord.created_at), asc(AuditEventRecord.id))
        )
        return list(result.scalars().all())