import os
from pathlib import Path

try:
    from dotenv import load_dotenv
except ImportError:
    load_dotenv = None


BASE_DIR = Path(__file__).resolve().parent.parent
if load_dotenv:
    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.lower() in {"1", "true", "yes", "on"}


SECRET_KEY = os.getenv("DJANGO_SECRET_KEY", "dev-secret-key")
DEBUG = env_bool("DJANGO_DEBUG", True)
ALLOWED_HOSTS = [host.strip() for host in os.getenv("DJANGO_ALLOWED_HOSTS", "127.0.0.1,localhost").split(",")]

INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "corsheaders",
    "accounts",
    "vpn",
]

MIDDLEWARE = [
    "corsheaders.middleware.CorsMiddleware",
    "django.middleware.security.SecurityMiddleware",
    "django.contrib.sessions.middleware.SessionMiddleware",
    "django.middleware.common.CommonMiddleware",
    "django.middleware.csrf.CsrfViewMiddleware",
    "django.contrib.auth.middleware.AuthenticationMiddleware",
    "django.contrib.messages.middleware.MessageMiddleware",
    "django.middleware.clickjacking.XFrameOptionsMiddleware",
]

ROOT_URLCONF = "config.urls"

TEMPLATES = [
    {
        "BACKEND": "django.template.backends.django.DjangoTemplates",
        "DIRS": [],
        "APP_DIRS": True,
        "OPTIONS": {
            "context_processors": [
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
            ],
        },
    },
]

WSGI_APPLICATION = "config.wsgi.application"

DATABASES = {
    "default": {
        "ENGINE": "django.db.backends.sqlite3",
        "NAME": BASE_DIR / "db.sqlite3",
    }
}

LANGUAGE_CODE = "zh-hans"
TIME_ZONE = "Asia/Shanghai"
USE_I18N = True
USE_TZ = True

STATIC_URL = "static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

CORS_ALLOWED_ORIGINS = [
    item.strip()
    for item in os.getenv("CORS_ALLOWED_ORIGINS", "http://localhost:5173").split(",")
    if item.strip()
]

FEISHU_APP_ID = os.getenv("FEISHU_APP_ID", "")
FEISHU_APP_SECRET = os.getenv("FEISHU_APP_SECRET", "")
FEISHU_REDIRECT_URI = os.getenv("FEISHU_REDIRECT_URI", "")
FEISHU_EVENT_VERIFICATION_TOKEN = os.getenv("FEISHU_EVENT_VERIFICATION_TOKEN", "")
TAURI_DEEP_LINK_SCHEME = os.getenv("TAURI_DEEP_LINK_SCHEME", "myvpn")

JWT_SECRET = os.getenv("JWT_SECRET", SECRET_KEY)
JWT_EXPIRES_SECONDS = int(os.getenv("JWT_EXPIRES_SECONDS", "600"))
OAUTH_STATE_EXPIRES_SECONDS = int(os.getenv("OAUTH_STATE_EXPIRES_SECONDS", "300"))
LOGIN_CODE_EXPIRES_SECONDS = int(os.getenv("LOGIN_CODE_EXPIRES_SECONDS", "120"))

NETMAKER_BASE_URL = os.getenv("NETMAKER_BASE_URL", "")
NETMAKER_API_TOKEN = os.getenv("NETMAKER_API_TOKEN", "")
NETMAKER_NETWORK_ID = os.getenv("NETMAKER_NETWORK_ID", "")
NETMAKER_ENROLLMENT_TAGS = [
    item.strip()
    for item in os.getenv("NETMAKER_ENROLLMENT_TAGS", "homevpn,desktop,vpn").split(",")
    if item.strip()
]
NETMAKER_ENROLLMENT_TTL_SECONDS = int(os.getenv("NETMAKER_ENROLLMENT_TTL_SECONDS", "600"))