from __future__ import annotations
import os

# Application display name
APP_TITLE = "Data Engineering Agent"

# Hugging Face configuration
HF_TOKEN = os.getenv("HF_TOKEN", "").strip()
HF_MODEL_ID = os.getenv("HF_MODEL_ID", "Qwen/Qwen3-Coder-30B-A3B-Instruct").strip()
HF_PROVIDER = os.getenv("HF_PROVIDER", "").strip() or None

# Application limits and defaults
MAX_UPLOAD_MB = int(os.getenv("MAX_UPLOAD_MB", "50"))
MAX_PROFILE_ROWS = int(os.getenv("MAX_PROFILE_ROWS", "100000"))
MAX_AGENT_STEPS = int(os.getenv("MAX_AGENT_STEPS", "4"))
DEFAULT_MAX_TOKENS = int(os.getenv("DEFAULT_MAX_TOKENS", "1800"))

# File types accepted for data uploads
SUPPORTED_DATA_EXTENSIONS = {".csv", ".parquet", ".json", ".jsonl", ".xlsx", ".xls"}