Files
MobilityOps/backend/app/seed_loader.py
T
NuklearRabbit 4bf9afbeff Final acceptance audit: fix all mypy defects, verify full journey matrix and degraded modes
Ran a dedicated post-M7 release-readiness audit. Found and fixed the one real gap: mypy
was a declared dev dependency but had never been run in any milestone's validation loop.
Fixed all 43 pre-existing type errors it surfaced, including two genuine defensive-
programming gaps (unguarded Optional vehicle/customer lookups that could have crashed
with unhandled 500s instead of clean 404/401 responses) rather than suppressing them.
make lint now runs ruff + mypy; mypy reports zero errors across 44 source files.

Re-verified end to end against a genuinely wiped-volumes clean checkout: automatic
migrations, deterministic seed, 66/66 backend tests, and the full user-journey matrix
(login, dashboard, vehicle/booking detail, return workflow, invalid-mileage rejection,
data-quality review, duplicate-customer merge, audit trail, Knowledge Assistant, n8n,
MCP Hub) via curl and Playwright.

Live-verified both external-dependency degraded modes, not just unit tests: stopped n8n
mid-flow and confirmed a return still commits with the outbox event staying pending and
retrying with backoff, then self-healing to succeeded with zero manual intervention once
n8n came back; verified RAGcore's unavailable-degradation path against an unreachable
host. Added frontend/e2e/interactive-elements.spec.ts (11 tests covering every nav item,
filter, tab, and role boundary) alongside the existing demo script test — 12/12 e2e tests
passing.

Verified no secrets are committed (.env never tracked, clean git history scan) and
.env.example covers every operator-configurable setting. Confirmed no placeholders,
TODOs, fake responses, hardcoded metrics, or dead routes anywhere in the codebase.

Updated README.md with an honest integration-status section and PROJECT_STATE.md with
the full audit findings. Added artifacts/final-acceptance/summary.md as the authoritative
final evidence document (commands, results, URLs, demo access, integration status per
external dependency, known limitations, deployment instructions, five-minute demo flow).
2026-08-02 01:27:01 +02:00

292 lines
10 KiB
Python

from __future__ import annotations
import csv
import uuid
from dataclasses import dataclass
from datetime import UTC, datetime
from pathlib import Path
from sqlalchemy import delete, insert, update
from sqlalchemy.orm import Session
from app.core.config import get_settings
from app.models.audit import AuditEvent
from app.models.booking import Booking
from app.models.customer import Customer
from app.models.data_quality import DataQualityIssue
from app.models.idempotency import IdempotencyRecord
from app.models.inspection import Inspection
from app.models.maintenance import MaintenanceRecord
from app.models.outbox import OutboxEvent
from app.models.user import User
from app.models.vehicle import Vehicle
settings = get_settings()
DEMO_USERS = [
{
"public_ref": "USR-OPS",
"display_name": "Amelie De Ridder",
"role": "operations_manager",
},
{
"public_ref": "USR-EMP",
"display_name": "Karim Boujaddaine",
"role": "rental_employee",
},
]
def _parse_dt(value: str) -> datetime:
return datetime.fromisoformat(value.replace("Z", "+00:00"))
def _parse_bool(value: str) -> bool:
return value.strip().lower() == "true"
def _parse_optional_int(value: str) -> int | None:
value = value.strip()
return int(value) if value else None
@dataclass
class SeedResult:
counts: dict[str, int]
def _seed_dir() -> Path:
return Path(settings.seed_dir)
def _read_csv(name: str) -> list[dict[str, str]]:
path = _seed_dir() / name
with path.open(newline="", encoding="utf-8") as handle:
return list(csv.DictReader(handle))
def clear_all(db: Session) -> None:
for model in (
AuditEvent,
OutboxEvent,
IdempotencyRecord,
DataQualityIssue,
Inspection,
MaintenanceRecord,
Booking,
Vehicle,
Customer,
User,
):
db.execute(delete(model))
def load_seed(db: Session) -> SeedResult:
counts: dict[str, int] = {}
user_rows = [
{"id": uuid.uuid4(), **user, "active": True} for user in DEMO_USERS
]
db.execute(insert(User), user_rows)
counts["users"] = len(user_rows)
customer_id_by_ref: dict[str, uuid.UUID] = {}
customer_rows = []
for row in _read_csv("customers.csv"):
cid = uuid.uuid4()
customer_id_by_ref[row["public_ref"]] = cid
customer_rows.append(
{
"id": cid,
"public_ref": row["public_ref"],
"first_name": row["first_name"],
"last_name": row["last_name"],
"email": row["email"] or None,
"phone": row["phone"] or None,
"postal_code": row["postal_code"] or None,
"city": row["city"] or None,
}
)
db.execute(insert(Customer), customer_rows)
counts["customers"] = len(customer_rows)
# Second pass for merged_into (self-referencing FK) since target must exist first.
for row in _read_csv("customers.csv"):
merged_ref = row.get("merged_into") or ""
if merged_ref:
db.execute(
update(Customer)
.where(Customer.id == customer_id_by_ref[row["public_ref"]])
.values(merged_into_customer_id=customer_id_by_ref[merged_ref])
)
vehicle_id_by_ref: dict[str, uuid.UUID] = {}
vehicle_rows = []
for row in _read_csv("vehicles.csv"):
vid = uuid.uuid4()
vehicle_id_by_ref[row["public_ref"]] = vid
vehicle_rows.append(
{
"id": vid,
"public_ref": row["public_ref"],
"make": row["make"],
"model": row["model"],
"model_year": int(row["model_year"]),
"registration_number": row["registration_number"],
"location": row["location"],
"operational_status": row["operational_status"],
"odometer_km": int(row["odometer_km"]),
"next_service_km": int(row["next_service_km"]),
"active": _parse_bool(row["active"]),
"version": 1,
}
)
db.execute(insert(Vehicle), vehicle_rows)
counts["vehicles"] = len(vehicle_rows)
booking_id_by_ref: dict[str, uuid.UUID] = {}
booking_rows = []
for row in _read_csv("bookings.csv"):
bid = uuid.uuid4()
booking_id_by_ref[row["public_ref"]] = bid
booking_rows.append(
{
"id": bid,
"public_ref": row["public_ref"],
"customer_id": customer_id_by_ref[row["customer_ref"]],
"vehicle_id": vehicle_id_by_ref[row["vehicle_ref"]],
"starts_at": _parse_dt(row["starts_at"]),
"ends_at": _parse_dt(row["ends_at"]),
"status": row["status"],
"start_odometer_km": _parse_optional_int(row["start_odometer_km"]),
"end_odometer_km": _parse_optional_int(row["end_odometer_km"]),
"requirements_complete": _parse_bool(row["requirements_complete"]),
}
)
db.execute(insert(Booking), booking_rows)
counts["bookings"] = len(booking_rows)
inspection_rows = []
for row in _read_csv("inspections.csv"):
inspection_rows.append(
{
"id": uuid.uuid4(),
"public_ref": row["public_ref"],
"booking_id": booking_id_by_ref[row["booking_ref"]],
"vehicle_id": vehicle_id_by_ref[row["vehicle_ref"]],
"type": row["type"],
"fuel_level_percent": int(row["fuel_level_percent"]),
"cleanliness_ok": _parse_bool(row["cleanliness_ok"]),
"damage_reported": _parse_bool(row["damage_reported"]),
"technical_warning": _parse_bool(row["technical_warning"]),
"odometer_km": int(row["odometer_km"]),
"completed_at": _parse_dt(row["completed_at"]),
"completed_by": None,
}
)
db.execute(insert(Inspection), inspection_rows)
counts["inspections"] = len(inspection_rows)
maintenance_rows = []
for row in _read_csv("maintenance.csv"):
maintenance_rows.append(
{
"id": uuid.uuid4(),
"public_ref": row["public_ref"],
"vehicle_id": vehicle_id_by_ref[row["vehicle_ref"]],
"occurred_at": _parse_dt(row["occurred_at"]),
"odometer_km": int(row["odometer_km"]),
"category": row["category"],
"summary": row["summary"],
}
)
db.execute(insert(MaintenanceRecord), maintenance_rows)
counts["maintenance"] = len(maintenance_rows)
def resolve_entity(entity_ref: str) -> tuple[str, uuid.UUID]:
if entity_ref.startswith("CUS-"):
return "customer", customer_id_by_ref[entity_ref]
return "vehicle", vehicle_id_by_ref[entity_ref]
dq_rows = []
now = datetime.now(UTC)
for row in _read_csv("data_quality_issues.csv"):
entity_type, entity_id = resolve_entity(row["entity_ref"])
related_ref = row.get("related_ref") or ""
dq_rows.append(
{
"id": uuid.uuid4(),
"public_ref": row["public_ref"],
"rule_type": row["rule_type"],
"entity_type": entity_type,
"entity_id": entity_id,
"severity": row["severity"],
"status": row["status"],
"evidence_json": {
"summary": row["evidence"],
"entity_ref": row["entity_ref"],
"related_refs": related_ref.split("|") if related_ref else [],
},
"proposed_action_json": {},
"detected_at": now,
"resolved_at": now if row["status"] == "resolved" else None,
"resolved_by": "USR-OPS" if row["status"] == "resolved" else None,
}
)
db.execute(insert(DataQualityIssue), dq_rows)
counts["data_quality_issues"] = len(dq_rows)
vehicle_ref_by_booking_ref = {
row["public_ref"]: row["vehicle_ref"] for row in _read_csv("bookings.csv")
}
outbox_rows = []
for row in _read_csv("workflow_runs.csv"):
booking_id = booking_id_by_ref.get(row["aggregate_ref"])
# Build the same schema-complete envelope the live return workflow (M2) produces,
# so a seeded/historical event is redeliverable (e.g. via manual retry) without the
# dispatcher crashing on a missing key. See PROJECT_STATE.md M4 notes.
outbox_rows.append(
{
"event_id": uuid.UUID(row["event_id"]),
"event_type": row["event_type"],
"aggregate_type": "booking",
"aggregate_id": booking_id or uuid.uuid4(),
"payload_json": {
"correlation_id": str(uuid.uuid4()),
"aggregate": {
"type": "booking",
"id": str(booking_id or uuid.uuid4()),
"public_ref": row["aggregate_ref"],
},
"data": {
"vehicle_ref": vehicle_ref_by_booking_ref.get(row["aggregate_ref"], ""),
"inspection_ref": "",
"resulting_vehicle_status": "cleaning",
"attention_reasons": [],
},
"aggregate_ref": row["aggregate_ref"],
},
"occurred_at": _parse_dt(row["occurred_at"]),
"delivery_status": row["status"],
"attempts": int(row["attempts"]),
"next_attempt_at": None,
"last_error": row["last_error"] or None,
"external_run_id": None,
}
)
db.execute(insert(OutboxEvent), outbox_rows)
counts["workflow_runs"] = len(outbox_rows)
return SeedResult(counts=counts)
def reset_and_seed(db: Session) -> SeedResult:
from app.services.data_quality import run_scan
clear_all(db)
result = load_seed(db)
db.commit()
scan = run_scan(db)
result.counts["data_quality_issues"] += sum(scan.created.values())
return result