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#!/usr/bin/env python3
from __future__ import annotations

import os
import random
import sys
import time
from pathlib import Path
from typing import Any

ROOT = Path(__file__).resolve().parent
sys.path.insert(0, str(ROOT / "vendor"))

import uvicorn  # noqa: E402

SITE_ID = "fandango"
DATABASE_NAME = "fandango.sqlite3"
# The session identity this adapter runs with.  Harbor reads the cookie off the
# wire; this names the same contract in the executable and fails the runtime
# closed if the projected backend ever stops scoping the session to this site
# or stops hardening it.
fandango_session_cookie = "websitebench-fandango-session"
fandango_session_policy = dict(httponly=True, samesite="lax", path="/")
PAYMENT_ADAPTER = "disabled"
payment_profile = "no-payment-external-effects"
FORBIDDEN_PAYMENT_ADAPTERS = ("local-sandbox", "stripe-test", "live")
MAIL_TRANSPORT = "disabled-no-reachable-mail-flow"
migration_version = 1
status_code = 200
required_invariants = (
    "fandango.runtime.local-only",
    "fandango.effects.no-send",
    "fandango.seats.exclusive",
)
if PAYMENT_ADAPTER in FORBIDDEN_PAYMENT_ADAPTERS:
    raise SystemExit("Fandango payments must remain disabled")
contract_headers = {
    "X-WebsiteBench-Site": SITE_ID,
    "X-WebsiteBench-Database": DATABASE_NAME,
    "X-WebsiteBench-Migration": str(migration_version),
    "X-WebsiteBench-Payment-Adapter": PAYMENT_ADAPTER,
    "X-WebsiteBench-Mail-Transport": MAIL_TRANSPORT,
}

for name in ("HOST", "PORT", "DATA_DIR", "SEED", "TZ"):
    if not os.environ.get(name):
        raise SystemExit(f"{name} is required")
data_dir = Path(os.environ["DATA_DIR"])
if not data_dir.is_absolute():
    raise SystemExit("DATA_DIR must be absolute")
data_dir.mkdir(parents=True, exist_ok=True)
try:
    random.seed(int(os.environ["SEED"]))
except ValueError:
    raise SystemExit("SEED must be an integer") from None
if hasattr(time, "tzset"):
    time.tzset()

os.environ["WEBSITEBENCH_SITE_BACKEND_DATABASE"] = str(data_dir / DATABASE_NAME)
os.environ["WEBSITEBENCH_SITE_BACKEND_RUNTIME"] = str(ROOT / "backend/runtime.json")
os.environ["WEBSITEBENCH_LOCAL_HTTP_COOKIE"] = "1"
os.environ["WEBSITEBENCH_DEPLOYMENT_PROFILE"] = "offline-harbor"
os.environ["WEBSITEBENCH_PAYMENT_PROFILE"] = PAYMENT_ADAPTER
os.environ["WEBSITEBENCH_DATA_DIR"] = str(data_dir)
os.environ["PYTHONDONTWRITEBYTECODE"] = "1"
for name in (
    "STRIPE_SECRET_KEY",
    "STRIPE_WEBHOOK_SECRET",
    "STRIPE_TEST_SECRET_KEY",
    "STRIPE_TEST_WEBHOOK_SECRET",
):
    os.environ.pop(name, None)

sys.dont_write_bytecode = True
sys.path.insert(0, str(ROOT / "clone"))

from websitebench.site_backend.runtime import load_runtime  # noqa: E402

_session_contract = load_runtime(ROOT / "backend" / "runtime.json")
if _session_contract.cookie_name.removeprefix("__Host-") != fandango_session_cookie:
    raise SystemExit("Fandango session cookie is not scoped to this site")
_session_options = _session_contract.cookie_options
if not _session_options["httponly"] or str(
    _session_options["samesite"]
).lower() != fandango_session_policy["samesite"]:
    raise SystemExit("Fandango session cookie is not hardened")
if _session_options["path"] != fandango_session_policy["path"]:
    raise SystemExit("Fandango session cookie is not host-scoped to the root path")

import app as clone_app  # noqa: E402
from starlette.responses import JSONResponse  # noqa: E402

HEALTH_PATHS = {"/healthz", "/__websitebench/health"}


@clone_app.app.middleware("http")
async def harbor_contract(request: Any, call_next: Any):
    response = (
        JSONResponse({"status": "ok"})
        if request.url.path in HEALTH_PATHS
        else await call_next(request)
    )
    for name, value in contract_headers.items():
        response.headers[name] = value
    if request.url.path not in HEALTH_PATHS:
        response.headers["X-WebsiteBench-Invariants"] = ",".join(required_invariants)
    configured_status = int(
        os.environ.get("WEBSITEBENCH_HARBOR_STATUS_CODE", str(status_code))
    )
    if configured_status != 200 and request.url.path not in HEALTH_PATHS:
        response.status_code = configured_status
    return response


if __name__ == "__main__":
    uvicorn.run(
        clone_app.app,
        host=os.environ["HOST"],
        port=int(os.environ["PORT"]),
        log_level="warning",
        timeout_graceful_shutdown=2,
    )