"""
Django settings for unievents_project project.

Generated by 'django-admin startproject' using Django 6.1.

For more information on this file, see
https://docs.djangoproject.com/en/6.1/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/6.1/ref/settings/
"""

import os
import pymysql
import dj_database_url
from pathlib import Path
from dotenv import load_dotenv

pymysql.install_as_MySQLdb()

# 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/6.1/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = os.environ.get('DJANGO_SECRET_KEY', 'django-insecure-jkzqjrt2+uf9xnop1_zx=%eg&9yp!srlt3ycc2d+rgt=f&x08n')

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

ALLOWED_HOSTS = [h.strip() for h in os.environ.get('ALLOWED_HOSTS', '*').split(',') if h.strip()]

CSRF_TRUSTED_ORIGINS = [o.strip() for o in os.environ.get('CSRF_TRUSTED_ORIGINS', '').split(',') if o.strip()]


# 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.authtoken',
    'corsheaders',
    'accounts',
    'events',
    'core',
]

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 = 'unievents_project.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',
            ],
        },
    },
]

WSGI_APPLICATION = 'unievents_project.wsgi.application'


DATABASE_URL = os.environ.get('DATABASE_URL')

if DATABASE_URL:
    DATABASES = {
        'default': dj_database_url.config(
            default=DATABASE_URL,
            conn_max_age=600,
            conn_health_checks=True,
        )
    }
else:
    USE_SQLITE = os.environ.get('USE_SQLITE', 'True').lower() == 'true'

    if USE_SQLITE:
        DATABASES = {
            'default': {
                'ENGINE': 'django.db.backends.sqlite3',
                'NAME': BASE_DIR / 'db.sqlite3',
            }
        }
    else:
        DATABASES = {
            'default': {
                'ENGINE': 'django.db.backends.mysql',
                'NAME': os.environ.get('DB_NAME', 'unievents'),
                'USER': os.environ.get('DB_USER', 'unievents'),
                'PASSWORD': os.environ.get('DB_PASSWORD', 'unievents_pw'),
                'HOST': os.environ.get('DB_HOST', '127.0.0.1'),
                'PORT': os.environ.get('DB_PORT', '3306'),
                'OPTIONS': {
                    'charset': 'utf8mb4',
                },
            }
        }


AUTH_USER_MODEL = 'accounts.User'


# Password validation
# https://docs.djangoproject.com/en/6.1/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/6.1/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/6.1/howto/static-files/

STATIC_URL = 'static/'
STATICFILES_DIRS = [BASE_DIR / 'static']
STATIC_ROOT = BASE_DIR / 'staticfiles'

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

MEDIA_URL = '/media/'
MEDIA_ROOT = BASE_DIR / 'media'
SERVE_MEDIA = os.environ.get('SERVE_MEDIA', 'False').lower() == 'true'

# Security settings in production
if not DEBUG:
    SECURE_PROXY_SSL_HEADER = ('HTTP_X_FORWARDED_PROTO', 'https')
    SECURE_SSL_REDIRECT = os.environ.get('SECURE_SSL_REDIRECT', 'False').lower() == 'true'
    SESSION_COOKIE_SECURE = True
    CSRF_COOKIE_SECURE = True
    SECURE_HSTS_SECONDS = 31536000  # 1 year
    SECURE_HSTS_INCLUDE_SUBDOMAINS = True
    SECURE_HSTS_PRELOAD = True
    SECURE_CONTENT_TYPE_NOSNIFF = True

DEFAULT_AUTO_FIELD = 'django.db.models.BigAutoField'

REST_FRAMEWORK = {
    'DEFAULT_AUTHENTICATION_CLASSES': (
        'rest_framework.authentication.TokenAuthentication',
        'rest_framework.authentication.SessionAuthentication',
    ),
    'DEFAULT_PERMISSION_CLASSES': (
        'rest_framework.permissions.AllowAny',
    ),
}

CORS_ALLOW_ALL_ORIGINS = True

# Email
# https://docs.djangoproject.com/en/6.1/topics/email/#topic-email-configuration

EMAIL_BACKEND = os.environ.get('EMAIL_BACKEND', 'django.core.mail.backends.console.EmailBackend')