import flask
import flask_assets

from section7 import configuration
from section7 import database
from section7 import filters
from section7 import router


class Section7Flask(flask.Flask):
    """Stub class to typehint the ``section7`` attribute with the application config"""

    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.section7 = configuration.load()


APPLICATION = Section7Flask(__name__)
assets = flask_assets.Environment(APPLICATION)

# Register the global application handler
APPLICATION.register_error_handler(Exception, router.handle_error)

# Initialize the database connection
APPLICATION.before_first_request(database.initialize)

# Inject the custom jinja2 filters so that they're available in the templates
for custom_filter in filters.FILTERS:
    APPLICATION.jinja_env.filters[custom_filter.__name__] = custom_filter

# Attach the application route endpoints
for route in router.ROUTES:
    APPLICATION.route(route.route, methods=list(route.methods))(route.entrypoint)