"""
Database configuration for thrillwiki project.
"""

from pathlib import Path
from decouple import config

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

DATABASE_URL=config("DATABASE_URL")
GDAL_LIBRARY_PATH=config("GDAL_LIBRARY_PATH")
GEOS_LIBRARY_PATH=config("GEOS_LIBRARY_PATH")
CACHE_URL=config("CACHE_URL")
CACHE_MIDDLEWARE_SECONDS=config("CACHE_MIDDLEWARE_SECONDS")
CACHE_MIDDLEWARE_KEY_PREFIX=config("CACHE_MIDDLEWARE_KEY_PREFIX")


# Database configuration
db_url = config("DATABASE_URL")

# Parse the database URL and create proper configuration dictionary
def parse_db_url(url):
    # Simple parsing for PostgreSQL URLs
    if url.startswith('postgres://') or url.startswith('postgis://'):
        # Format: postgres://username:password@host:port/database
        # Remove the protocol part
        if url.startswith('postgis://'):
            url = url.replace('postgis://', '')
        elif url.startswith('postgres://'):
            url = url.replace('postgres://', '')
        # Split the URL into parts
        auth_part, rest = url.split('@', 1)
        host_port, database = rest.split('/', 1)
        
        username, password = auth_part.split(':', 1) if ':' in auth_part else (auth_part, '')
        host, port = host_port.split(':', 1) if ':' in host_port else (host_port, '5432')
        
        return {
            'ENGINE': 'django.contrib.gis.db.backends.postgis',
            'NAME': database,
            'USER': username,
            'PASSWORD': password,
            'HOST': host,
            'PORT': port,
        }
    # Add support for other database types if needed
    else:
        raise ValueError(f"Unsupported database URL format: {url}")

# Switch back to PostgreSQL - GeoDjango issues resolved separately
DATABASES = {
    "default": parse_db_url(db_url),
}

# GeoDjango Settings - Environment specific with fallbacks
GDAL_LIBRARY_PATH = config("GDAL_LIBRARY_PATH")
GEOS_LIBRARY_PATH = config("GEOS_LIBRARY_PATH")

# Cache settings - Use simple local memory cache for development
CACHES = {
    'default': {
        'BACKEND': 'django.core.cache.backends.locmem.LocMemCache',
        'LOCATION': 'unique-snowflake',
    }
}

CACHE_MIDDLEWARE_SECONDS = config("CACHE_MIDDLEWARE_SECONDS")
CACHE_MIDDLEWARE_KEY_PREFIX = config("CACHE_MIDDLEWARE_KEY_PREFIX")