"""
Django settings for gtrans_project project.

Generated by 'django-admin startproject' using Django 6.0.7.

For more information on this file, see
https://docs.djangoproject.com/en/6.0/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/6.0/ref/settings/
"""

import os
from pathlib import Path

from dotenv import load_dotenv

# Build paths inside the project like this: BASE_DIR / 'subdir'.
BASE_DIR = Path(__file__).resolve().parent.parent

load_dotenv(BASE_DIR / '.env')


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/6.0/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
# Read from the environment (see backend/.env for local dev; set a real,
# unique value in the hosting server's environment for production).
SECRET_KEY = os.environ['SECRET_KEY']

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = os.environ.get('DEBUG', 'False') == 'True'

ALLOWED_HOSTS = ['localhost', '127.0.0.1', '192.168.0.19', '10.5.50.58', 'api.karisconseil.com']


# Application definition

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',

    'rest_framework',
    'rest_framework_simplejwt.token_blacklist',
    'corsheaders',

    'accounts',
    'trucks',
    'documents',
]

AUTH_USER_MODEL = 'accounts.User'

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',
    'corsheaders.middleware.CorsMiddleware',
    '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 = 'gtrans_project.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 = 'gtrans_project.wsgi.application'


# Database
# https://docs.djangoproject.com/en/6.0/ref/settings/#databases

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


# Password validation
# https://docs.djangoproject.com/en/6.0/ref/settings/#auth-password-validators

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',
    },
]


# Internationalization
# https://docs.djangoproject.com/en/6.0/topics/i18n/

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_TZ = True


# Static files (CSS, JavaScript, Images)
# https://docs.djangoproject.com/en/6.0/howto/static-files/

# Set PUBLIC_PATH=/gtrans when Django is deployed below a URL prefix.
PUBLIC_PATH = os.environ.get('PUBLIC_PATH', '').rstrip('/')
STATIC_URL = f'{PUBLIC_PATH}/static/' if PUBLIC_PATH else 'static/'
# Collected here by `collectstatic` and served by WhiteNoise in production.
# Run `python manage.py collectstatic` before deploying.
STATIC_ROOT = BASE_DIR / 'staticfiles'

STORAGES = {
    'default': {
        'BACKEND': 'django.core.files.storage.FileSystemStorage',
    },
    'staticfiles': {
        'BACKEND': 'whitenoise.storage.CompressedManifestStaticFilesStorage',
    },
}

# Media files (uploaded truck photos)
# NOTE: on the cPanel host, make sure this resolves to a persistent directory
# (not a temp folder that gets wiped) since it holds the only copies of
# uploaded truck photos.
MEDIA_URL = f'{PUBLIC_PATH}/media/' if PUBLIC_PATH else 'media/'
MEDIA_ROOT = BASE_DIR / 'media'

# Optional absolute path to the Tesseract executable on hosting platforms.
TESSERACT_CMD = os.environ.get('TESSERACT_CMD', '')

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

# Django REST Framework
REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework_simplejwt.authentication.JWTAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.IsAuthenticated',
    ),
    'DEFAULT_PAGINATION_CLASS': 'rest_framework.pagination.PageNumberPagination',
    'PAGE_SIZE': 20,
    'PAGE_SIZE_QUERY_PARAM': 'page_size',
}

# Simple JWT
from datetime import timedelta

SIMPLE_JWT = {
    'ACCESS_TOKEN_LIFETIME': timedelta(hours=8),
    'REFRESH_TOKEN_LIFETIME': timedelta(days=7),
    'ROTATE_REFRESH_TOKENS': True,
    'BLACKLIST_AFTER_ROTATION': False,
    'AUTH_HEADER_TYPES': ('Bearer',),
}

# CORS - allow the React (Vite) frontend to call the API.
# Vite picks the next free port if 5173 is taken, and the phone/other devices
# on the LAN reach it via the machine's network IP, so match any port on
# localhost/127.0.0.1/the LAN IP instead of hardcoding a single origin.
# The production frontend origin is added as an exact match alongside these.
CORS_ALLOWED_ORIGIN_REGEXES = [
    r'^http://localhost:\d+$',
    r'^http://127\.0\.0\.1:\d+$',
    r'^http://192\.168\.0\.19:\d+$',
]

CORS_ALLOWED_ORIGINS = [
    'https://gtrans.karisconseil.com',
]

CSRF_TRUSTED_ORIGINS = [
    'https://gtrans.karisconseil.com',
]

# HTTPS is terminated by o2switch before Passenger forwards requests here.
# Do not redirect API requests: redirects on CORS preflight/POST requests
# are rejected by browsers and the hosting layer already enforces HTTPS.
SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
SECURE_SSL_REDIRECT = os.environ.get('SECURE_SSL_REDIRECT', 'False') == 'True'

# Production hardening — the site is served over HTTPS only once deployed,
# so these are safe; they'd break local http:// development if always on.
if not DEBUG:
    SESSION_COOKIE_SECURE = True
    CSRF_COOKIE_SECURE = True
    SECURE_HSTS_SECONDS = 31536000
    SECURE_HSTS_INCLUDE_SUBDOMAINS = True
    SECURE_HSTS_PRELOAD = True