"""Configuration API router for Mantimon TCG.

Provides endpoints for fetching game configuration. The frontend uses these
values for UI display (progress bars, limits) and includes them in requests.

The backend is stateless - these defaults are starting points. The frontend
may customize them based on game mode (campaign, freeplay, custom) and send
the appropriate config in validation/creation requests.

Endpoints:
    GET /config/deck - Get default DeckConfig
"""

from fastapi import APIRouter

from app.core.config import DeckConfig

router = APIRouter(prefix="/config", tags=["config"])


@router.get("/deck", response_model=DeckConfig)
async def get_default_deck_config() -> DeckConfig:
    """Get default deck building configuration.

    Returns the standard Mantimon deck rules:
    - 40-card main deck
    - 20-card energy deck
    - 4-copy limit per card
    - 1 Basic Pokemon minimum

    Frontend uses these for:
    - UI hints (progress bar targets, card limit indicators)
    - Default values in deck validation requests

    Returns:
        DeckConfig with default Mantimon TCG rules.
    """
    return DeckConfig()