"""
AI Processor - Configuration

API keys, constants, and directory paths.
"""

from pathlib import Path
import os
import logging

logger = logging.getLogger(__name__)

# Directory Configuration
BASE_DIR = Path.home() / "Arbeitsblaetter"
EINGANG_DIR = BASE_DIR / "Eingang"
BEREINIGT_DIR = BASE_DIR / "Bereinigt"

# Vision API Configuration
# Set VISION_API environment variable to "openai" or "claude" (default: claude)
VISION_API = os.getenv("VISION_API", "claude").lower()


def get_openai_api_key() -> str:
    """Get OpenAI API key from environment."""
    api_key = os.getenv("OPENAI_API_KEY")
    if not api_key:
        raise RuntimeError("OPENAI_API_KEY ist nicht gesetzt. Bitte API-Schluessel als Umgebungsvariable setzen.")
    return api_key


def get_anthropic_api_key() -> str:
    """Get Anthropic API key from environment."""
    api_key = os.getenv("ANTHROPIC_API_KEY")
    if not api_key:
        raise RuntimeError("ANTHROPIC_API_KEY ist nicht gesetzt.")
    return api_key


# Ensure directories exist
def ensure_directories():
    """Create directories if they don't exist."""
    EINGANG_DIR.mkdir(parents=True, exist_ok=True)
    BEREINIGT_DIR.mkdir(parents=True, exist_ok=True)