"""Application configuration."""
import os


class Config:
    """Base configuration."""
    SECRET_KEY = os.environ.get('SECRET_KEY', 'dev-key-change-me')
    SQLALCHEMY_DATABASE_URI = os.environ.get('DATABASE_URL', 'sqlite:///esp32.db')
    SQLALCHEMY_TRACK_MODIFICATIONS = False

    # Network
    UDP_LISTEN_PORT = int(os.environ.get('UDP_PORT', 5500))
    SENSOR_CMD_PORT = int(os.environ.get('CMD_PORT', 5501))
    SENSOR_TIMEOUT = int(os.environ.get('SENSOR_TIMEOUT', 60))

    # Data retention (days)
    RETENTION_SIGHTINGS_DAYS = int(os.environ.get('RETENTION_SIGHTINGS_DAYS', 14))
    RETENTION_PROBES_DAYS = int(os.environ.get('RETENTION_PROBES_DAYS', 14))
    RETENTION_EVENTS_DAYS = int(os.environ.get('RETENTION_EVENTS_DAYS', 60))
    RETENTION_ALERTS_DAYS = int(os.environ.get('RETENTION_ALERTS_DAYS', 365))


class TestConfig(Config):
    """Testing configuration."""
    TESTING = True
    SQLALCHEMY_DATABASE_URI = 'sqlite:///:memory:'


class ProdConfig(Config):
    """Production configuration."""
    pass