"""Central configuration, all overridable via environment variables.

Anything user- or machine-specific lives here so the rest of the code never
reads os.environ directly.
"""
import os
from pathlib import Path

try:
    from dotenv import load_dotenv

    load_dotenv()
except Exception:  # dotenv is optional
    pass


def _env(name: str, default: str) -> str:
    return os.environ.get(name, default)


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

# --- Storage -----------------------------------------------------------------
DATA_DIR = Path(_env("SCREEN_LEADS_DATA", str(BASE_DIR / "data")))
DATA_DIR.mkdir(parents=True, exist_ok=True)

SCREENSHOT_DIR = DATA_DIR / "screenshots"
SCREENSHOT_DIR.mkdir(parents=True, exist_ok=True)

DB_PATH = Path(_env("SCREEN_LEADS_DB", str(DATA_DIR / "leads.db")))

# --- AI ----------------------------------------------------------------------
# Vision model used for extraction. Defaults to the most capable Claude model;
# override with SCREEN_LEADS_MODEL=claude-sonnet-5 for a cheaper high-volume run.
ANTHROPIC_MODEL = _env("SCREEN_LEADS_MODEL", "claude-opus-4-8")
MAX_IMAGES_PER_CALL = int(_env("SCREEN_LEADS_MAX_IMAGES", "8"))

# --- Capture -----------------------------------------------------------------
# Grace period after Start before the first capture, so you can focus the
# browser window on the profile. Set to 0 to disable.
START_DELAY = float(_env("SCREEN_LEADS_START_DELAY", "5"))

SCROLL_STEPS = int(_env("SCREEN_LEADS_SCROLL_STEPS", "6"))   # screenshots per profile
SCROLL_AMOUNT = int(_env("SCREEN_LEADS_SCROLL_AMOUNT", "800"))  # pyautogui scroll clicks
SCROLL_PAUSE = float(_env("SCREEN_LEADS_SCROLL_PAUSE", "0.8"))  # settle time (s)
WATCH_INTERVAL = float(_env("SCREEN_LEADS_WATCH_INTERVAL", "2.0"))  # loop tick (s)

# Auto-advance: after capturing a profile, look for a "Next" control, click it,
# scroll back to the top, and keep going — walking paginated results hands-free.
AUTO_NEXT = _env("SCREEN_LEADS_AUTO_NEXT", "true").lower() in ("1", "true", "yes", "on")
NEXT_LOAD_PAUSE = float(_env("SCREEN_LEADS_NEXT_LOAD_PAUSE", "2.5"))  # wait after click (s)
MAX_AUTO_NEXT = int(_env("SCREEN_LEADS_MAX_AUTO_NEXT", "25"))         # safety cap per run

# What to do when the front tab is not an enabled site's target page.
#   "stop" -> end the run (the requested behaviour)
#   "wait" -> pause and keep polling until a valid page appears
ON_INVALID_PAGE = _env("SCREEN_LEADS_ON_INVALID_PAGE", "stop").lower()

# --- Server ------------------------------------------------------------------
HOST = _env("SCREEN_LEADS_HOST", "127.0.0.1")
PORT = int(_env("SCREEN_LEADS_PORT", "8000"))