"""Application.

Demo FastAPI service wired with MigrationAuthorizationBackend.

Follows the ows-product-staging pattern:
  - CorrelationIdMiddleware + RequestContextMiddleware from owscontext for
    get_correlation_id / get_request_context used by OwsClient
  - CurrentRequestMiddleware stores the Starlette Request in a ContextVar so
    the MigrationAuthorizationBackend extra_tags_getter can read method/endpoint
    per request (FastAPI has no global request proxy unlike Flask)
  - Authorization backend initialised once in the lifespan context manager
"""
import logging

from fastapi import FastAPI
from fastapi.responses import JSONResponse
from owscontext.context.asgi.middleware import (
    CorrelationIdMiddleware,
    RequestContextMiddleware,
)

import config
from context import CurrentRequestMiddleware
from datasources import lifespan
from routers import items


app = FastAPI(
    title=config.SERVICE_NAME,
    version=config.SERVICE_VERSION,
    lifespan=lifespan,
)

app.add_middleware(CurrentRequestMiddleware)
app.add_middleware(RequestContextMiddleware)
app.add_middleware(CorrelationIdMiddleware)

app.include_router(items.router)

logging.basicConfig(level=logging.INFO)

@app.get(config.HEALTH_CHECK)
async def health():
    return JSONResponse({"status": "ok"})