"""Application.

The API application is a `flask` application. It provides simple features such
as registering a url for a specific handlers.
"""

import connector_neo4j
from flask import Flask
from owsclient import OwsClient
from owslogger import flask_logger
from owsrequest import flask_request
from owsrequest.ows_client import correlation_id_getter, request_context_getter
from python_pdp_sdk.backends.authorization_backend import AuthorizationBackend, PdpAuthorizationBackend
from python_pdp_sdk.connectors.ows_pdp.ows_pdp import OwsPdpClient

from product_digital import config
from product_digital.connectors import sentry


app = Flask(config.SERVICE_NAME)
flask_logger.setup(
    app=app,
    environment=config.ENVIRONMENT,
    logger_name=config.LOGGER_NAME,
    logger_level=config.LOGGER_LEVEL,
    service_name=config.SERVICE_NAME,
    service_version=config.SERVICE_VERSION,
    exclude_paths=[config.HEALTH_CHECK]
)

if config.SENTRY:
    sentry.init_sentry(config.SENTRY)

try:
    import uwsgi  # noqa
    uwsgiRunning = True
except ImportError:
    uwsgiRunning = False

flask_request.setup(app, config.ENVIRONMENT,
                    add_request_context=True, uwsgi_cache_enabled=uwsgiRunning,
                    label_profile=True, verify_access=True,
                    rules_file='product_digital/access_rules.yml',
                    access_log_only=config.ONLY_LOG_ACCESS_ERRORS,
                    exclude_paths=config.EXCLUDE_PATH)

connector_neo4j.configure(
    config.NEO4J_URL,
    config.NEO4J_USERNAME,
    config.NEO4J_PASSWORD,
    max_transaction_retry_time=config.NEO4J_MAX_RETRY_TIME,
)


def setup_ows_client() -> OwsClient:
    """Create and return a configured OwsClient instance."""
    return OwsClient(
        config.ENVIRONMENT,
        config.SERVICE_NAME,
        correlation_id_getter=correlation_id_getter,
        request_context_getter=request_context_getter,
    )


def setup_authorization_backend(ows_client: OwsClient) -> AuthorizationBackend:
    """Create and return a PDP-backed AuthorizationBackend instance."""
    return PdpAuthorizationBackend(OwsPdpClient(ows_client))


ows_client: OwsClient = setup_ows_client()
authorization_backend: AuthorizationBackend = setup_authorization_backend(ows_client)