Environment Management

def render_file(config: Config, *path: str) -> Union[str, bytes]:
    """
    Render a template file with configuration data.
    
    Args:
        config (Config): Configuration dictionary for template variables
        *path (str): Path components to the template file
        
    Returns:
        Union[str, bytes]: Rendered template content (bytes for binary files)
    """

def render_str(config: Config, text: str) -> str:
    """
    Render a template string with configuration data.
    
    Args:
        config (Config): Configuration dictionary for template variables  
        text (str): Template string to render
        
    Returns:
        str: Rendered string content
    """

def render_unknown(config: Config, value: Any) -> Any:
    """
    Render unknown value type, handling strings as templates and passing through other types.
    
    Args:
        config (Config): Configuration dictionary for template variables
        value (Any): Value to potentially render
        
    Returns:
        Any: Rendered value or original value if not a string
    """

def copy_file(root: str, filename: str) -> None:
    """
    Copy a file from templates to environment directory.
    
    Args:
        root (str): Project root directory
        filename (str): Filename to copy
    """

def delete_file(root: str, filename: str) -> None:
    """
    Delete a file from the environment directory.
    
    Args:
        root (str): Project root directory
        filename (str): Filename to delete
    """

def create_env_dir(root: str) -> str:
    """
    Create and return the environment directory path.
    
    Args:
        root (str): Project root directory
        
    Returns:
        str: Path to the environment directory
    """

def clean_env_dir(root: str) -> None:
    """
    Clean the environment directory, removing all generated files.
    
    Args:
        root (str): Project root directory
    """

def get_env_path(root: str, *path: str) -> str:
    """
    Get the full path to a file in the environment directory.
    
    Args:
        root (str): Project root directory
        *path (str): Path components within environment directory
        
    Returns:
        str: Full path to the file
    """

def create_template_environment(config: Config) -> jinja2.Environment:
    """
    Create a Jinja2 environment with Tutor-specific settings and filters.
    
    Args:
        config (Config): Configuration dictionary for template context
        
    Returns:  
        jinja2.Environment: Configured Jinja2 environment
    """

def get_template_filters() -> Dict[str, Callable]:
    """
    Get dictionary of custom Jinja2 filters available in templates.
    
    Returns:
        Dict[str, Callable]: Dictionary mapping filter names to functions
    """

def apply_patches(config: Config, content: str, patches: List[str]) -> str:
    """
    Apply a list of patches to template content.
    
    Args:
        config (Config): Configuration dictionary for patch rendering
        content (str): Original content to patch
        patches (List[str]): List of patch identifiers
        
    Returns:
        str: Content with patches applied
    """

def get_patch_content(config: Config, patch_name: str) -> str:
    """
    Get rendered content for a specific patch.
    
    Args:
        config (Config): Configuration dictionary for patch rendering
        patch_name (str): Name of the patch to retrieve
        
    Returns:
        str: Rendered patch content
    """

# Configuration access
config: Config  # Complete configuration dictionary
get_config: Callable[[str, Any], Any]  # Get config value with default

# Environment information  
TUTOR_VERSION: str  # Current Tutor version
TUTOR_APP: str  # Application name (usually "tutor")

# Docker and deployment
DOCKER_REGISTRY: str  # Docker registry for images
DOCKER_IMAGE_TAG: str  # Tag for Docker images

# Networking
HTTP_PORT: int  # HTTP port number
HTTPS_PORT: int  # HTTPS port number

# Paths
TUTOR_ROOT: str  # Project root directory
ENV_ROOT: str  # Environment directory path

# String processing filters
def common_domain(d1: str, d2: str) -> str:
    """Find common domain between two domain names."""

def reverse_host(domain: str) -> str:
    """Reverse domain name Java-style (com.example.subdomain)."""

def random_string(length: int) -> str:
    """Generate random string of specified length."""

# Configuration filters  
def list_if(services: List[Tuple[str, bool]]) -> str:
    """Generate JSON list of enabled services."""

def walk_templates(obj: Any) -> Any:
    """Recursively render templates in nested data structures."""

# Docker filters
def docker_image(service: str) -> str:
    """Get Docker image name for a service."""

def docker_registry_image(image: str) -> str:
    """Add registry prefix to image name if configured."""

# Template root directories (configurable via ENV_TEMPLATE_ROOTS filter)
TEMPLATES_ROOT: str  # Main templates directory
PLUGIN_TEMPLATES: List[str]  # Plugin template directories

# Standard template files
"docker-compose.yml"  # Docker Compose configuration
"docker-compose.prod.yml"  # Production Docker Compose overrides  
"docker-compose.dev.yml"  # Development Docker Compose overrides
"k8s/"  # Kubernetes manifests directory
"local/"  # Local deployment files
"dev/"  # Development configuration files

# Standard targets (configurable via ENV_TEMPLATE_TARGETS filter)
("docker-compose.yml", "docker-compose.yml")  # Main compose file
("docker-compose.prod.yml", "docker-compose.prod.yml")  # Production overrides
("docker-compose.dev.yml", "docker-compose.dev.yml")  # Development overrides  
("k8s/", "k8s/")  # Kubernetes manifests
("local/", "local/")  # Local deployment files
("dev/", "dev/")  # Development files

from tutor import env, config

# Load configuration
config_data = config.load("/path/to/tutor/root")

# Render a template file
content = env.render_file(config_data, "docker-compose.yml")

# Content is rendered for use by the deployment system
print(f"Rendered content length: {len(content)} chars")

from tutor import env, config

config_data = config.load("/path/to/tutor/root")

# Render template string
template_str = "My platform: {{ PLATFORM_NAME }}"
result = env.render_str(config_data, template_str)

# Process nested templates
data = {
    "name": "{{ PLATFORM_NAME }}",
    "host": "{{ LMS_HOST }}",
    "nested": {
        "port": "{{ HTTP_PORT }}"
    }
}
processed = env.render_unknown(config_data, data)

from tutor import env

root = "/path/to/tutor/root"

# Create environment directory
env_dir = env.create_env_dir(root)

# Get path to environment file
compose_path = env.get_env_path(root, "docker-compose.yml")

# Clean environment
env.clean_env_dir(root)

from tutor import env, config, hooks

config_data = config.load("/path/to/tutor/root")

# Add custom patches via hooks
hooks.Filters.ENV_PATCHES.add_items([
    ("docker-compose.yml", "my-custom-patch"),
    ("k8s/ingress.yml", "ingress-customization"),
])

# Render template with patches applied
content = env.render_file(config_data, "docker-compose.yml")
# Patches are automatically applied during rendering

from tutor import hooks

# Add custom Jinja2 filter
@hooks.Filters.ENV_TEMPLATE_FILTERS.add()
def add_custom_filters():
    def uppercase_filter(text):
        return text.upper()
    
    def format_url(host, protocol="https"):
        return f"{protocol}://{host}"
    
    return [
        ("uppercase", uppercase_filter),
        ("format_url", format_url),
    ]

# Use in templates:
# {{ PLATFORM_NAME | uppercase }}
# {{ LMS_HOST | format_url("http") }}