SUPPORTED_LANGUAGES: dict[str, str] = {
    "en": "English",
    "fr": "French",
    "es": "Spanish",
    "it": "Italian",
    "de": "German",
}

SUPPORTED_LEVELS = {"A1", "A2", "B1", "B2", "C1", "C2"}

# Ordered for display (SUPPORTED_LEVELS is a set and has no guaranteed order).
LEVEL_ORDER: list[str] = ["A1", "A2", "B1", "B2", "C1", "C2"]

LEVEL_DESCRIPTIONS: dict[str, str] = {
    "A1": "Little to no prior knowledge of the language",
    "A2": "Basic knowledge; can understand simple phrases and expressions",
    "B1": "Intermediate; can handle most everyday situations",
    "B2": "Upper intermediate; can interact fluently with native speakers",
    "C1": "Advanced; able to use language flexibly and effectively",
    "C2": "Near-native mastery of the language",
}