"""Django settings for New Dashboard (ERD-aligned DRF API)."""

from __future__ import annotations

import json
import os
from pathlib import Path

from dotenv import load_dotenv

BASE_DIR = Path(__file__).resolve().parent.parent
load_dotenv(BASE_DIR / ".env")


def env(key: str, default: str | None = None) -> str | None:
    return os.getenv(key, default)


def env_bool(key: str, default: bool = False) -> bool:
    value = os.getenv(key)
    if value is None:
        return default
    return value.strip().lower() in {"1", "true", "yes", "on"}


def env_list(key: str, default: str = "") -> list[str]:
    raw = os.getenv(key, default)
    return [item.strip() for item in raw.split(",") if item.strip()]


def env_json_dict(key: str, default: str = "") -> dict[str, int]:
    raw = os.getenv(key, default)
    if not raw:
        return {}
    data = json.loads(raw)
    return {str(k): int(v) for k, v in data.items()}


SECRET_KEY = env("SECRET_KEY", "insecure-dev-key")
DEBUG = env_bool("DEBUG", True)
ALLOWED_HOSTS = env_list("ALLOWED_HOSTS", "localhost,127.0.0.1,dashboard.local")
CSRF_TRUSTED_ORIGINS = env_list(
    "CSRF_TRUSTED_ORIGINS",
    "http://localhost:3001,http://127.0.0.1:3001,http://localhost,http://127.0.0.1,http://dashboard.local",
)
if DEBUG:
    # Dev/LAN: allow Vite (:3001) and Docker UI (:80) from private networks.
    CSRF_TRUSTED_ORIGIN_REGEXES = [
        r"^http://localhost:\d+$",
        r"^http://127\.0\.0\.1:\d+$",
        r"^http://192\.168\.\d{1,3}\.\d{1,3}:\d+$",
        r"^http://10\.\d{1,3}\.\d{1,3}\.\d{1,3}:\d+$",
    ]

INSTALLED_APPS = [
    "django.contrib.auth",
    "django.contrib.contenttypes",
    "django.contrib.sessions",
    "django.contrib.messages",
    "django.contrib.staticfiles",
    "rest_framework",
    "corsheaders",
    "drf_spectacular",
    "apps.accounts",
    "apps.farms",
    "apps.operations",
    "apps.jobs",
]

MIDDLEWARE = [
    "django.middleware.security.SecurityMiddleware",
    "django.contrib.sessions.middleware.SessionMiddleware",
    "corsheaders.middleware.CorsMiddleware",
    "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"

DB_ENGINE = env("DB_ENGINE", "django.db.backends.sqlite3")
if DB_ENGINE == "django.db.backends.sqlite3":
    DATABASES = {
        "default": {
            "ENGINE": DB_ENGINE,
            "NAME": env("DB_NAME", str(BASE_DIR / "db.sqlite3")),
        }
    }
else:
    DATABASES = {
        "default": {
            "ENGINE": DB_ENGINE,
            "NAME": env("DB_NAME", "newdashboard"),
            "USER": env("DB_USER", "newdashboard"),
            "PASSWORD": env("DB_PASSWORD", ""),
            "HOST": env("DB_HOST", "localhost"),
            "PORT": env("DB_PORT", "5432"),
        }
    }

AUTH_USER_MODEL = "accounts.User"

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 = "en-us"
TIME_ZONE = "Asia/Jakarta"
USE_I18N = True
USE_TZ = True

STATIC_URL = "/static/"
STATIC_ROOT = BASE_DIR / "staticfiles"
MEDIA_URL = "/media/"
MEDIA_ROOT = BASE_DIR / "media"

DEFAULT_AUTO_FIELD = "django.db.models.BigAutoField"

CORS_ALLOWED_ORIGINS = env_list(
    "CORS_ALLOWED_ORIGINS",
    "http://localhost:3001,http://127.0.0.1:3001,http://localhost,http://127.0.0.1,http://dashboard.local",
)
CORS_ALLOW_CREDENTIALS = env_bool("CORS_ALLOW_CREDENTIALS", True)

SESSION_COOKIE_SECURE = env_bool("SESSION_COOKIE_SECURE", False)
CSRF_COOKIE_SECURE = env_bool("CSRF_COOKIE_SECURE", False)
SESSION_COOKIE_HTTPONLY = True
CSRF_COOKIE_HTTPONLY = False

REST_FRAMEWORK = {
    "DEFAULT_AUTHENTICATION_CLASSES": [
        "apps.accounts.authentication.ApiKeyAuthentication",
        "rest_framework.authentication.SessionAuthentication",
    ],
    "DEFAULT_PERMISSION_CLASSES": [
        "rest_framework.permissions.IsAuthenticated",
    ],
    "DEFAULT_PAGINATION_CLASS": "rest_framework.pagination.PageNumberPagination",
    "PAGE_SIZE": int(env("API_PAGE_SIZE", "50") or "50"),
    "DEFAULT_SCHEMA_CLASS": "drf_spectacular.openapi.AutoSchema",
}

SPECTACULAR_SETTINGS = {
    "TITLE": "New Dashboard API",
    "DESCRIPTION": "ERD-aligned poultry dashboard API (session + API key auth).",
    "VERSION": "1.0.0",
}

BOOTSTRAP_ADMIN_USER = env("BOOTSTRAP_ADMIN_USER", "admin") or "admin"
BOOTSTRAP_ADMIN_PASSWORD = env("BOOTSTRAP_ADMIN_PASSWORD", "") or ""
BOOTSTRAP_STAFF_USER = env("BOOTSTRAP_STAFF_USER", "") or ""
BOOTSTRAP_STAFF_PASSWORD = env("BOOTSTRAP_STAFF_PASSWORD", "") or ""

# Machine API key for this farm deployment (pusat pull + register body api_key).
SITE_API_KEY = (env("SITE_API_KEY", "") or "").strip()

KARUNG_WEB_ADMIN_BASE_URL = (
    env("KARUNG_WEB_ADMIN_BASE_URL", "http://127.0.0.1:5000") or ""
).rstrip("/")
KARUNG_WEB_ADMIN_TIMEOUT_SECONDS = float(
    env("KARUNG_WEB_ADMIN_TIMEOUT_SECONDS", "30") or "30"
)
KARUNG_WEB_ADMIN_SYNC_ENABLED = env_bool("KARUNG_WEB_ADMIN_SYNC_ENABLED", False)

# Pusat (executive) dedicated cycle-close + register channel.
PUSAT_BASE_URL = (env("PUSAT_BASE_URL", "") or "").rstrip("/")
PUSAT_API_KEY = env("PUSAT_API_KEY", "") or ""
# This deployment's reachable API root including /api/v1 (sent on register).
SITE_API_BASE_URL = (env("SITE_API_BASE_URL", "") or "").rstrip("/")

# Dashboard publish cutoff (WIB): day D visible from this time on day D.
DASHBOARD_PUBLISH_HOUR = int(env("DASHBOARD_PUBLISH_HOUR", "17") or "17")
DASHBOARD_PUBLISH_MINUTE = int(env("DASHBOARD_PUBLISH_MINUTE", "0") or "0")

# External IoT flocks API — panel data is pushed via webhook (no pull sync).

# Chicken counting edge vision API (headcount + mortality) — not gated by publish cutoff.
CHICKEN_COUNTING_EDGE_BASE_URL = (
    env("CHICKEN_COUNTING_EDGE_BASE_URL", "") or ""
).rstrip("/")
CHICKEN_COUNTING_EDGE_TIMEOUT_SECONDS = float(
    env("CHICKEN_COUNTING_EDGE_TIMEOUT_SECONDS", "30") or "30"
)
CHICKEN_COUNTING_EDGE_COUNTING_SYNC_ENABLED = env_bool(
    "CHICKEN_COUNTING_EDGE_COUNTING_SYNC_ENABLED", True
)
CHICKEN_COUNTING_EDGE_MORTALITY_SYNC_ENABLED = env_bool(
    "CHICKEN_COUNTING_EDGE_MORTALITY_SYNC_ENABLED", True
)
CHICKEN_COUNTING_EDGE_WEIGHT_SYNC_ENABLED = env_bool(
    "CHICKEN_COUNTING_EDGE_WEIGHT_SYNC_ENABLED", True
)

# AI Insight: Ollama + RAG (generate intended for NUC / host Ollama).
RAG_SERVICE_URL = (env("RAG_SERVICE_URL", "http://127.0.0.1:5002") or "").rstrip("/")
OLLAMA_BASE_URL = (env("OLLAMA_BASE_URL", "http://127.0.0.1:11434") or "").rstrip("/")
LLM_MODEL_NAME = env("LLM_MODEL_NAME", "qwen2.5:3b") or "qwen2.5:3b"
LLM_TIMEOUT_SECONDS = float(env("LLM_TIMEOUT_SECONDS", "1200") or "1200")
# Plan §6 production config: deterministic, small context, CPU thread cap.
LLM_NUM_CTX = int(env("LLM_NUM_CTX", "2048") or "2048")
LLM_NUM_THREAD = int(env("LLM_NUM_THREAD", "4") or "4")
LLM_SEED = int(env("LLM_SEED", "42") or "42")
LLM_TEMPERATURE = float(env("LLM_TEMPERATURE", "0.2") or "0.2")