from __future__ import annotations

import os
from pathlib import Path
from dotenv import load_dotenv

BASE_DIR = Path(__file__).resolve().parent.parent
load_dotenv(BASE_DIR / ".env")


def _env_bool(name: str, default: bool = False) -> bool:
    value = os.getenv(name)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


SECRET_KEY = os.getenv("PYTORRENT_SECRET_KEY", "dev-change-me")
DB_PATH = Path(os.getenv("PYTORRENT_DB_PATH", str(BASE_DIR / "data" / "pytorrent.sqlite3")))
if not DB_PATH.is_absolute():
    DB_PATH = BASE_DIR / DB_PATH

HOST = os.getenv("PYTORRENT_HOST", "0.0.0.0")
PORT = int(os.getenv("PYTORRENT_PORT", "8090"))
DEBUG = _env_bool("PYTORRENT_DEBUG", False)
# Note: Keep Werkzeug opt-in only for explicit local/dev use, never by default in services.
ALLOW_UNSAFE_WERKZEUG = _env_bool("PYTORRENT_ALLOW_UNSAFE_WERKZEUG", DEBUG)
POLL_INTERVAL = float(os.getenv("PYTORRENT_POLL_INTERVAL", "1.0"))
WORKERS = int(os.getenv("PYTORRENT_WORKERS", "16"))
GEOIP_DB = Path(os.getenv("PYTORRENT_GEOIP_DB", str(BASE_DIR / "data" / "GeoLite2-City.mmdb")))
if not GEOIP_DB.is_absolute():
    GEOIP_DB = BASE_DIR / GEOIP_DB


def _env_int(name: str, default: int, minimum: int = 0) -> int:
    try:
        return max(minimum, int(os.getenv(name, str(default))))
    except (TypeError, ValueError):
        return default


TRAFFIC_HISTORY_RETENTION_DAYS = _env_int("PYTORRENT_TRAFFIC_HISTORY_RETENTION_DAYS", 90, 1)
JOBS_RETENTION_DAYS = _env_int("PYTORRENT_JOBS_RETENTION_DAYS", 30, 1)
SMART_QUEUE_HISTORY_RETENTION_DAYS = _env_int("PYTORRENT_SMART_QUEUE_HISTORY_RETENTION_DAYS", 30, 1)
LOG_RETENTION_DAYS = _env_int("PYTORRENT_LOG_RETENTION_DAYS", 30, 1)
SMART_QUEUE_LABEL = os.getenv("PYTORRENT_SMART_QUEUE_LABEL", "Smart Queue Paused")