"""
Django settings for watcher_visio project.

Generated by 'django-admin startproject' using Django 5.2.8.

For more information on this file, see
https://docs.djangoproject.com/en/5.2/topics/settings/

For the full list of settings and their values, see
https://docs.djangoproject.com/en/5.2/ref/settings/
"""

import os
from pathlib import Path

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

# Use mock data when no OpenStack/Prometheus access (e.g. local dev)
USE_MOCK_DATA = os.environ.get("USE_MOCK_DATA", "false").lower() in ("1", "true", "yes")


# Quick-start development settings - unsuitable for production
# See https://docs.djangoproject.com/en/5.2/howto/deployment/checklist/

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = "django-insecure-747*14ir*49hoo6c2225)kxr%4^am0ub_s-m^_7i4cctu)v$g8"

# SECURITY WARNING: don't run with debug turned on in production!
DEBUG = True

ALLOWED_HOSTS = ["*"]


# Application definition

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

# Prometheus settings (environment override recommended)
PROMETHEUS_URL = "http://10.226.74.53:9090/"
PROMETHEUS_METRICS = {
    "cpu_usage": "rate(libvirt_domain_info_cpu_time_seconds_total)[300s]",
    "ram_usage": "avg_over_time(libvirt_domain_info_memory_usage_bytes[300s]",
}

# Openstack cloud settings
OPENSTACK_REGION_NAME = "cl2k1distlab"
OPENSTACK_CLOUD = "distlab"

# Openstack watcher endoint settings
WATCHER_ENDPOINT_NAME = "infra-optim"
WATCHER_INTERFACE_NAME = "public"

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",
]

# COOP ignored on non-HTTPS / non-localhost; disable to avoid console warning
SECURE_CROSS_ORIGIN_OPENER_POLICY = None

ROOT_URLCONF = "watcher_visio.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 = "watcher_visio.wsgi.application"


# Database
# https://docs.djangoproject.com/en/5.2/ref/settings/#databases

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


# Password validation
# https://docs.djangoproject.com/en/5.2/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/5.2/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/5.2/howto/static-files/

STATIC_URL = "/static/"

STATICFILES_DIRS = [
    BASE_DIR / "static",
]

STATIC_ROOT = BASE_DIR / "staticfiles"

# Default primary key field type
# https://docs.djangoproject.com/en/5.2/ref/settings/#default-auto-field

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

# Dashboard cache (reduces load on OpenStack/Prometheus and allows concurrent users)
CACHES = {
    "default": {
        "BACKEND": "django.core.cache.backends.locmem.LocMemCache",
        "LOCATION": "watcher-visio-dashboard",
    }
}
DASHBOARD_CACHE_TTL = 120  # seconds
SOURCE_STATUS_CACHE_TTL = 30  # seconds (lightweight source-status checks)