"""
Django settings for the Abrechnungssystem project.

Settings are read from environment variables via django-environ so the same
image runs in dev (docker-compose.override.yml) and prod (docker-compose.yml).
"""

from pathlib import Path

import environ

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

env = environ.Env(
    DEBUG=(bool, False),
    ALLOWED_HOSTS=(list, ["*"]),
)

# Read a local .env if present (Docker passes env directly, so it's optional).
environ.Env.read_env(BASE_DIR / ".env")

SECRET_KEY = env("SECRET_KEY", default="django-insecure-dev-only-change-me")

DEBUG = env("DEBUG")

ALLOWED_HOSTS = env("ALLOWED_HOSTS")

CSRF_TRUSTED_ORIGINS = env.list("CSRF_TRUSTED_ORIGINS", default=[])


# Application definition

INSTALLED_APPS = [
    "django.contrib.admin",
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "crispy_forms",
    "crispy_bootstrap5",
    "django_tables2",
    "abrechnung",
]

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "whitenoise.middleware.WhiteNoiseMiddleware",
    "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",
            ],
        },
    },
]

WSGI_APPLICATION = "config.wsgi.application"


# Database — DATABASE_URL, e.g. postgres://user:pass@db:5432/abrechnung.
# Falls back to a local SQLite file when DATABASE_URL is unset (e.g. quick tests).
DATABASES = {
    "default": env.db(
        "DATABASE_URL",
        default=f"sqlite:///{BASE_DIR / 'db.sqlite3'}",
    )
}


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 — German-facing UI.
LANGUAGE_CODE = "de-de"
TIME_ZONE = "Europe/Berlin"
USE_I18N = True
USE_TZ = True


# Static files
STATIC_URL = "static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
STATICFILES_DIRS = [BASE_DIR / "static"]
STORAGES = {
    "default": {"BACKEND": "django.core.files.storage.FileSystemStorage"},
    "staticfiles": {
        "BACKEND": "whitenoise.storage.CompressedManifestStaticFilesStorage",
    },
}

# Media (only used for the seller logo — not for invoice documents).
MEDIA_URL = "media/"
MEDIA_ROOT = BASE_DIR / "media"

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

# Auth flow
LOGIN_URL = "login"
LOGIN_REDIRECT_URL = "dashboard"
LOGOUT_REDIRECT_URL = "login"

# crispy-forms
CRISPY_ALLOWED_TEMPLATE_PACKS = "bootstrap5"
CRISPY_TEMPLATE_PACK = "bootstrap5"

DJANGO_TABLES2_TEMPLATE = "django_tables2/bootstrap5.html"