# Django Settings Configuration Plan

## Overview
This document outlines the Django settings configuration for the manufacturing application, including database setup, internationalization, static files, and other important configurations.

## Key Settings Implementation

### 1. Basic Configuration
```python
# settings.py

# SECURITY WARNING: keep the secret key used in production secret!
SECRET_KEY = 'your-secret-key-here'

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

ALLOWED_HOSTS = ['localhost', '127.0.0.1']

# Application definition
INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    
    # Third-party apps
    'bootstrap5',
    'crispy_forms',
    'crispy_bootstrap5',
    
    # Local apps
    'accounts',
    'inventory',
    'purchasing',
    'sales',
    'manufacturing',
    'database_management',
    'reports',
    'dashboard',
]

MIDDLEWARE = [
    'django.middleware.security.SecurityMiddleware',
    'whitenoise.middleware.WhiteNoiseMiddleware',  # For static files
    'django.contrib.sessions.middleware.SessionMiddleware',
    'django.middleware.locale.LocaleMiddleware',  # For internationalization
    'django.middleware.common.CommonMiddleware',
    'django.middleware.csrf.CsrfViewMiddleware',
    'django.contrib.auth.middleware.AuthenticationMiddleware',
    'django.contrib.messages.middleware.MessageMiddleware',
    'django.middleware.clickjacking.XFrameOptionsMiddleware',
]

ROOT_URLCONF = 'manufacturing_app.urls'

TEMPLATES = [
    {
        'BACKEND': 'django.template.backends.django.DjangoTemplates',
        'DIRS': [BASE_DIR / 'templates'],
        'APP_DIRS': True,
        'OPTIONS': {
            'context_processors': [
                'django.template.context_processors.debug',
                'django.template.context_processors.request',
                'django.contrib.auth.context_processors.auth',
                'django.contrib.messages.context_processors.messages',
            ],
        },
    },
]

WSGI_APPLICATION = 'manufacturing_app.wsgi.application'
```

### 2. Database Configuration
```python
# Database
# SQLite for development, PostgreSQL for production
import os
from decouple import config

if config('DATABASE_URL', default=None):
    # Production - PostgreSQL
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.postgresql',
            'NAME': config('DB_NAME'),
            'USER': config('DB_USER'),
            'PASSWORD': config('DB_PASSWORD'),
            'HOST': config('DB_HOST'),
            'PORT': config('DB_PORT', default='5432'),
        }
    }
else:
    # Development - SQLite
    DATABASES = {
        'default': {
            'ENGINE': 'django.db.backends.sqlite3',
            'NAME': BASE_DIR / 'db.sqlite3',
        }
    }
```

### 3. Internationalization and Localization
```python
# Internationalization
LANGUAGE_CODE = 'id'  # Indonesian language code
USE_I18N = True
TIME_ZONE = 'Asia/Jakarta'
USE_TZ = True

# Additional localization settings
LANGUAGES = [
    ('id', 'Indonesian'),
    ('en', 'English'),
]

LOCALE_PATHS = [
    BASE_DIR / 'locale',
]

# Format localization
USE_L10N = True
USE_THOUSAND_SEPARATOR = True
```

### 4. Static and Media Files
```python
# Static files (CSS, JavaScript, Images)
STATIC_URL = '/static/'
STATIC_ROOT = BASE_DIR / 'staticfiles'
STATICFILES_DIRS = [
    BASE_DIR / 'static',
]

# Media files (User uploads)
MEDIA_URL = '/media/'
MEDIA_ROOT = BASE_DIR / 'media'

# Static files storage for production
STATICFILES_STORAGE = 'whitenoise.storage.CompressedManifestStaticFilesStorage'
```

### 5. Authentication and Security
```python
# Authentication
AUTH_USER_MODEL = 'accounts.User'  # Custom user model

LOGIN_URL = '/accounts/login/'
LOGIN_REDIRECT_URL = '/'
LOGOUT_REDIRECT_URL = '/'

# Password validation
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',
    },
]

# Security settings
SECURE_BROWSER_XSS_FILTER = True
SECURE_CONTENT_TYPE_NOSNIFF = True
X_FRAME_OPTIONS = 'DENY'
```

### 6. Third-party App Settings
```python
# Bootstrap 5 settings
BOOTSTRAP5 = {
    'css_url': {
        'url': 'https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/css/bootstrap.min.css',
    },
    'javascript_url': {
        'url': 'https://cdn.jsdelivr.net/npm/bootstrap@5.3.0/dist/js/bootstrap.bundle.min.js',
    },
    'theme_url': None,
    'javascript_in_head': False,
    'include_jquery': False,
    'use_i18n': True,
}

# Crispy forms settings
CRISPY_ALLOWED_TEMPLATE_PACKS = "bootstrap5"
CRISPY_TEMPLATE_PACK = "bootstrap5"

# Session settings
SESSION_COOKIE_AGE = 3600  # 1 hour
SESSION_SAVE_EVERY_REQUEST = True
```

### 7. Email Configuration (Optional)
```python
# Email settings
EMAIL_BACKEND = 'django.core.mail.backends.smtp.EmailBackend'
EMAIL_HOST = config('EMAIL_HOST', default='localhost')
EMAIL_PORT = config('EMAIL_PORT', default=587, cast=int)
EMAIL_USE_TLS = config('EMAIL_USE_TLS', default=True, cast=bool)
EMAIL_HOST_USER = config('EMAIL_HOST_USER', default='')
EMAIL_HOST_PASSWORD = config('EMAIL_HOST_PASSWORD', default='')
DEFAULT_FROM_EMAIL = 'noreply@manufacturing-app.com'
```

### 8. Logging Configuration
```python
# Logging
LOGGING = {
    'version': 1,
    'disable_existing_loggers': False,
    'handlers': {
        'file': {
            'level': 'DEBUG',
            'class': 'logging.FileHandler',
            'filename': BASE_DIR / 'logs/django.log',
        },
        'console': {
            'level': 'DEBUG',
            'class': 'logging.StreamHandler',
        },
    },
    'root': {
        'handlers': ['file', 'console'],
        'level': 'DEBUG',
    },
    'loggers': {
        'django': {
            'handlers': ['file', 'console'],
            'level': 'DEBUG',
            'propagate': False,
        },
    },
}
```

### 9. Custom App Settings
```python
# Custom application settings
# Reporting settings
REPORTS_PER_PAGE = 20
EXCEL_EXPORT_LIMIT = 10000

# Inventory settings
DEFAULT_REORDER_LEVEL = 10
STOCK_ALERT_THRESHOLD = 5

# Manufacturing settings
DEFAULT_MO_STATUS = 'draft'
PRODUCTION_SCHEDULING_DAYS = 7
```

## Environment-based Configuration

For different environments (development, staging, production), we'll use environment variables:

### Development (.env file)
```
DEBUG=True
SECRET_KEY=your-development-secret-key
DATABASE_URL=
ALLOWED_HOSTS=localhost,127.0.0.1
```

### Production
```
DEBUG=False
SECRET_KEY=your-production-secret-key
DATABASE_URL=postgres://user:password@host:port/dbname
ALLOWED_HOSTS=yourdomain.com,www.yourdomain.com
```

## Implementation Notes

1. **Security**: The secret key should be different for development and production environments
2. **Database**: SQLite is used for development, PostgreSQL for production
3. **Static Files**: WhiteNoise is used for serving static files in production
4. **Internationalization**: Indonesian is set as the primary language with English as fallback
5. **Timezone**: Asia/Jakarta is configured as the default timezone
6. **Bootstrap**: Bootstrap 5 is integrated for the UI framework
7. **Custom User Model**: A custom user model is used for extended user functionality

This configuration provides a solid foundation for the manufacturing application with proper security, internationalization, and scalability considerations.