import sys
import json
import mariadb

def GetParticipant(options):
    """
    :param options: A dictionary containing all the paramters for the Operations
        options["user_id"]: **Id of user**. *Example: 2*. User id returned by verify call.

    """

    try:
        conn = mariadb.connect(host="lager", user="ds", password="Gurkensalat48", database="bremen_calling")
    except mariadb.Error as e:
        print(f"Error connecting to the database: {e}")
        sys.exit(1)

    cur = conn.cursor()

    id = options["user_id"]
    query = "SELECT p.id, p.name, p.street, p.postal_code, p.city, p.flags FROM participant p INNER JOIN user u WHERE u.participant_id = p.id AND u.id = %d "
    data = [id]
    cur.execute(query, data)


    for (id, name, street, postal_code, city, flags) in cur:

        # Implement your business logic here
        # All the parameters are present in the options argument

        return json.dumps({
            "id": id,
            "city": city,
            "name": name,
            "postal code": postal_code,
            "street": street,
        }), 200

    return json.dumps([]), 200