from flask import Flask

from . import dm, dmcal


def create_app():
    app = Flask("deskmeter")

    app.debug = True
    app.register_blueprint(dm.dmbp)

    # Register custom Jinja2 filters
    @app.template_filter('hash')
    def hash_filter(s):
        """Return hash of string for consistent color generation"""
        if s is None:
            return 0
        return hash(str(s))

    return app