import os

from dotenv import load_dotenv

from concurrent.futures import ThreadPoolExecutor
from pathlib import Path

from models.config import BotConfig
from models.stats import BotStats

BASE_DIR = Path(__file__).resolve().parent


def _resolve_path(value: str, default: str) -> Path:
    path = Path(os.getenv(value, default))
    if path.is_absolute():
        return path
    return BASE_DIR / path


def _env_int(name: str, default: int) -> int:
    raw = os.getenv(name)
    if raw is None or raw == "":
        return default
    return int(raw)


def _env_float(name: str, default: float) -> float:
    raw = os.getenv(name)
    if raw is None or raw == "":
        return default
    return float(raw)


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


load_dotenv()

BOT_TOKEN = os.getenv("BOT_TOKEN", "")
LOG_BOT_TOKEN = os.getenv("LOG_BOT_TOKEN", "") or None
ADMIN_ID = _env_int("ADMIN_ID", 0)
CRYPTO_PAY_TOKEN = os.getenv("CRYPTO_PAY_TOKEN", "")
SHOP_NAME = os.getenv("SHOP_NAME", "KILL UNONY MOM")
SHOP_CHANNEL = os.getenv("SHOP_CHANNEL", "https://t.me/bot399_start_bot")
BOT_USERNAME = os.getenv("BOT_USERNAME", "bot399_start_bot")

DATABASE_DIR = _resolve_path("DATABASE_DIR", "Users")
COOKIE_FILES_DIR = _resolve_path("COOKIE_FILES_DIR", "Cookies")
CONFIG_FILE = _resolve_path("BOT_CONFIG_FILE", "bot_config.json")
STATS_FILE = _resolve_path("BOT_STATS_FILE", "bot_stats.json")
PROXIES_FILE = _resolve_path("PROXIES_FILE", "proxies.txt")
ROBSEC_FILE = _resolve_path("ROBSEC_FILE", "robsec.txt")

MAX_RETRIES = _env_int("MAX_RETRIES", 5)
CONCURRENT_CHECKS = _env_int("CONCURRENT_CHECKS", 50)
REQUEST_TIMEOUT = _env_int("REQUEST_TIMEOUT", 10)
FRESHER_BATCH_SIZE = _env_int("FRESHER_BATCH_SIZE", 10)

DATABASE_DIR.mkdir(parents=True, exist_ok=True)
COOKIE_FILES_DIR.mkdir(parents=True, exist_ok=True)

FRESHER_POOL = ThreadPoolExecutor(max_workers=64, thread_name_prefix="fresher")

DEFAULT_CONFIG = BotConfig.default()
DEFAULT_STATS = BotStats.default()

BOT_ENABLED_DEFAULT = _env_bool("BOT_ENABLED_DEFAULT", True)
SHOP_ENABLED_DEFAULT = _env_bool("SHOP_ENABLED_DEFAULT", True)
MIN_WITHDRAW_DEFAULT = _env_float("MIN_WITHDRAW_DEFAULT", 100.0)

# Apply deployment defaults before the first config file is created.
DEFAULT_CONFIG.bot_enabled = BOT_ENABLED_DEFAULT
DEFAULT_CONFIG.shop_enabled = SHOP_ENABLED_DEFAULT
DEFAULT_CONFIG.min_withdraw = MIN_WITHDRAW_DEFAULT