example.py

"""
This module is an example of
how to use the Flask-Sustainable package.

It is a simple Flask application that uses the Flask-Sustainable package.
"""

import flask

from flask_sustainable import Sustainable
from flask_sustainable.indicator import (
    PerfCPU,
    PerfEnergy,
    PerfPower,
    PerfRAM,
    PerfTime,
)
from flask_sustainable.score import PerfScoreCO2


def create_app() -> flask.Flask:
    """Create and configure an instance of the Flask application.

    This is a simple Flask application that uses the Flask-Sustainable package.

    :return: Flask application instance
    """
    app = flask.Flask(__name__)
    sustainable = Sustainable(app)
    sustainable.add_indicators(
        PerfTime(),
        PerfCPU(),
        PerfRAM(),
        PerfEnergy(),
        PerfPower(),
    )
    sustainable.add_scores(
        PerfScoreCO2(),
    )

    @app.route("/")
    def _():
        return "Hello, World!"

    return app


if __name__ == "__main__":
    create_app().run(debug=True)