"""Sentry Client.

Provides sentry_client for ad hoc capturing of messages and errors.
https://sentry.io/for/flask/
"""

from typing import Any

from sentry_scrubber import SentryScrubber
import sentry_sdk
from sentry_sdk import configure_scope
from sentry_sdk.integrations.flask import FlaskIntegration
from sentry_sdk.integrations.sqlalchemy import SqlalchemyIntegration
from sentry_sdk.scrubber import DEFAULT_DENYLIST, EventScrubber

from payee.constants.constants import SENSITIVE_FIELDS

sentry_client = None
scrubber = None


def setup_sentry(config) -> None:
    """Init Sentry with provided DSN url."""
    global sentry_client, scrubber

    if not config.SENTRY:
        sentry_client = None
        scrubber = None
        return

    # Create scrubber instance only when Sentry is actually being initialized
    scrubber = SentryScrubber(sensitive_fields=SENSITIVE_FIELDS)
    sentry_sdk.init(
        dsn=config.SENTRY,
        environment=config.SENTRY_ENVIRONMENT,
        integrations=[
            FlaskIntegration(transaction_style='url'),
            SqlalchemyIntegration(),
        ],
        # before_send is required only for plain text errors that appear in Breadcrumbs (and possibly in other locations)
        # in fact, this is an intensive operation since it recursively traverses the entire event
        # there is some room for optimization if we find that performance is impacted
        before_send=scrubber.before_send_handler,
        send_default_pii=False,
        event_scrubber=EventScrubber(
            denylist=DEFAULT_DENYLIST + SENSITIVE_FIELDS, recursive=True
        ),
        attach_stacktrace=True,
        max_value_length=2048,
    )
    sentry_client = sentry_sdk.client


def send_to_sentry(message: str, errors: Any, status: int, sentry_message: str) -> None:
    """Send to Sentry with scrubbed sensitive data."""
    if not sentry_client or not scrubber:
        return

    with configure_scope() as scope:
        scope.set_extra('message', scrubber.scrub_data(message))
        scope.set_extra('errors', scrubber.scrub_data(errors))
        scope.set_extra('status', status)
        sentry_sdk.capture_message(sentry_message)