"""Django settings for autocensup."""

from pathlib import Path
from urllib.parse import urlparse

import os

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


def load_env_file(path: Path) -> None:
    if not path.exists():
        return

    for line in path.read_text().splitlines():
        line = line.strip()
        if not line or line.startswith("#") or "=" not in line:
            continue

        key, value = line.split("=", 1)
        key = key.strip()
        value = value.strip().strip("'\"")
        if key:
            os.environ.setdefault(key, value)


load_env_file(BASE_DIR / ".env")

SECRET_KEY = os.getenv(
    "DJANGO_SECRET_KEY",
    "django-insecure-dev-only-change-me",
)

DEBUG = os.getenv("DJANGO_DEBUG", "True").lower() in {"1", "true", "yes", "on"}

ALLOWED_HOSTS = [
    host.strip()
    for host in os.getenv("DJANGO_ALLOWED_HOSTS", "localhost,127.0.0.1,0.0.0.0").split(",")
    if host.strip()
]

INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "core",
]

MIDDLEWARE = [
    "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": [BASE_DIR / "templates"],
        "APP_DIRS": True,
        "OPTIONS": {
            "context_processors": [
                "django.template.context_processors.request",
                "django.contrib.auth.context_processors.auth",
                "django.contrib.messages.context_processors.messages",
                "core.context_processors.ano_censo",
            ],
        },
    },
]

WSGI_APPLICATION = "config.wsgi.application"


def database_config() -> dict[str, str | int]:
    database_url = os.getenv("DATABASE_URL")

    if database_url:
        parsed = urlparse(database_url)
        return {
            "ENGINE": "django.db.backends.postgresql",
            "NAME": parsed.path.removeprefix("/"),
            "USER": parsed.username or "",
            "PASSWORD": parsed.password or "",
            "HOST": parsed.hostname or "",
            "PORT": parsed.port or 5432,
        }

    return {
        "ENGINE": "django.db.backends.postgresql",
        "NAME": os.getenv("POSTGRES_DB", "autocensup"),
        "USER": os.getenv("POSTGRES_USER", "autocensup"),
        "PASSWORD": os.getenv("POSTGRES_PASSWORD", "autocensup"),
        "HOST": os.getenv("POSTGRES_HOST", "localhost"),
        "PORT": int(os.getenv("POSTGRES_PORT", "5432")),
    }


DATABASES = {
    "default": database_config(),
}

AUTH_PASSWORD_VALIDATORS = [
    {
        "NAME": "django.contrib.auth.password_validation.UserAttributeSimilarityValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.MinimumLengthValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.CommonPasswordValidator",
    },
    {
        "NAME": "django.contrib.auth.password_validation.NumericPasswordValidator",
    },
]

LANGUAGE_CODE = "pt-br"
TIME_ZONE = "America/Fortaleza"
USE_I18N = True
USE_TZ = True

STATIC_URL = "static/"
STATIC_ROOT = BASE_DIR / "staticfiles"

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

LOGIN_URL = "login"
LOGIN_REDIRECT_URL = "home"
LOGOUT_REDIRECT_URL = "login"

GENNERA_LOCAL_BASE_URL = os.getenv("GENNERA_LOCAL_BASE_URL", "http://gennera.solucaoti.net.br")
GENNERA_API_TOKEN = os.getenv("API_TOKEN", "")
GENNERA_LOCAL_AUTH_TOKEN = os.getenv("GENNERA_LOCAL_AUTH_TOKEN", "")

CENSUP_IES_CODIGO = os.getenv("CENSUP_IES_CODIGO", "")

CELERY_BROKER_URL = os.getenv("CELERY_BROKER_URL", "redis://localhost:6379/0")
CELERY_RESULT_BACKEND = os.getenv("CELERY_RESULT_BACKEND", "redis://localhost:6379/0")
CELERY_TASK_SERIALIZER = "json"
CELERY_RESULT_SERIALIZER = "json"
CELERY_ACCEPT_CONTENT = ["json"]
CELERY_TASK_TRACK_STARTED = True
CELERY_TIMEZONE = TIME_ZONE
CELERY_RESULT_EXTENDED = True