"""Конфиг: пути, лимиты, ключи из env/.env. Никаких секретов в коде."""
import json
import os
import pathlib

ROOT = pathlib.Path(__file__).resolve().parent.parent
DATA = pathlib.Path(os.environ.get("OMNI_DATA") or (ROOT / "data"))
DB = pathlib.Path(os.environ.get("OMNI_DB") or (DATA / "omni.sqlite3"))
THEMES = ROOT / "themes.txt"

DEFAULTS = {
    "timeout": 25,
    "retries": 2,
    "per_host_delay": 0.6,
    "max_bytes": 4_000_000,
    "limit": 20,
    "lang": "ru",
    "ua": ("Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 "
           "(KHTML, like Gecko) Chrome/141.0.0.0 Safari/537.36"),
    "proxy_mode": "off",   # off | list | env
    "proxies": [],
    "cookies": {},         # host -> "a=b; c=d" (свои сессии к закрытым площадкам)
}

KEYS = {}          # имя -> значение
CONFIG = {}        # прочие настройки


def cookies_for(host):
    """Cookie-строка под хост: точное совпадение или суффикс (example.com -> www.example.com)."""
    ck = CONFIG.get("cookies") or {}
    if not ck:
        return ""
    host = (host or "").lower().split(":")[0]
    if host in ck:
        return ck[host]
    for k, v in ck.items():
        k = k.lower().lstrip(".")
        if host == k or host.endswith("." + k):
            return v
    return ""


def _load_env_file(path):
    p = pathlib.Path(path)
    if not p.exists():
        return {}
    out = {}
    for line in p.read_text(encoding="utf-8", errors="ignore").splitlines():
        line = line.strip()
        if not line or line.startswith("#") or "=" not in line:
            continue
        k, v = line.split("=", 1)
        out[k.strip()] = v.strip().strip('"').strip("'")
    return out


def load():
    """Читает .env рядом с проектом и config.json (если есть), собирает ключи."""
    global KEYS, CONFIG
    envf = _load_env_file(ROOT / ".env")
    for k, v in envf.items():
        os.environ.setdefault(k, v)
    cfg = dict(DEFAULTS)
    cf = ROOT / "config.json"
    if cf.exists():
        try:
            cfg.update(json.loads(cf.read_text(encoding="utf-8")))
        except Exception:
            pass
    CONFIG = cfg
    raw = os.environ.get("OMNI_COOKIES") or ""
    if raw:
        try:
            extra = json.loads(raw)
            if isinstance(extra, dict):
                cfg["cookies"] = {**(cfg.get("cookies") or {}), **extra}
        except Exception:
            pass
    for name in ("TAVILY_API_KEY", "EXA_API_KEY", "YOU_API_KEY", "FIRECRAWL_API_KEY",
                 "JINA_API_KEY", "SERPER_API_KEY", "BRAVE_API_KEY", "X_BEARER",
                 "REDDIT_CLIENT_ID", "REDDIT_SECRET", "TREG_TOKEN", "GITHUB_TOKEN"):
        v = os.environ.get(name)
        if v:
            KEYS[name] = v
    DATA.mkdir(parents=True, exist_ok=True)
    return cfg


def proxies():
    mode = CONFIG.get("proxy_mode", "off")
    if mode == "env":
        v = os.environ.get("OMNI_PROXIES", "")
        return [x.strip() for x in v.split(",") if x.strip()]
    if mode == "list":
        return list(CONFIG.get("proxies") or [])
    return []