Utilities

def format_time(seconds):
    """
    Format time duration in human-readable format.

    Parameters:
    - seconds: Time duration in seconds (float)

    Returns:
    str: Formatted time string

    Formats time in one of these forms based on duration:
    - 01:56 (minutes:seconds)
    - 12h 01:56 (hours, minutes:seconds)
    - 1d 0h 01:56 (days, hours, minutes:seconds)
    """

class Justify:
    """
    Text justification constants for alignment options.
    """
    CENTER = 'center'  # Center-align text
    LEFT = 'ljust'     # Left-align text (default)
    RIGHT = 'rjust'    # Right-align text

class EnlightenWarning(Warning):
    """
    Generic warning class for Enlighten library warnings.
    
    Used for configuration issues, compatibility warnings,
    and other non-fatal problems in enlighten operations.
    """

class HTMLConverter:
    def __init__(self, term):
        """
        ANSI to HTML converter for notebook environments.

        Parameters:
        - term: Blessed Terminal instance
        """

    def to_html(self, text):
        """
        Convert ANSI-formatted text to HTML.

        Parameters:
        - text: String with ANSI escape codes

        Returns:
        str: HTML-formatted text with CSS classes

        Supported formatting:
        - Colors (8, 16, 256, RGB)
        - Bold, italic, underline
        - Blink animation
        - Hyperlinks
        """

    @property
    def style(self):
        """
        CSS style definitions for converted HTML.

        Returns:
        str: Complete CSS style block for HTML output
        """

class Lookahead:
    def __init__(self, iterator):
        """
        Iterator wrapper supporting look-ahead operations.

        Parameters:
        - iterator: Source iterator to wrap
        """

    def __getitem__(self, key):
        """
        Access future items without consuming them.

        Parameters:
        - key: Index or slice for look-ahead access

        Returns:
        Item(s) from future positions in iterator
        """

def warn_best_level(message, category):
    """
    Issue warning at appropriate stack level outside library.

    Parameters:
    - message: Warning message text
    - category: Warning category class
    """

import enlighten

# Format various time durations
print(enlighten.format_time(65))     # "01:05"
print(enlighten.format_time(3665))   # "1h 01:05"
print(enlighten.format_time(90065))  # "1d 1h 01:05"

# Use in custom formatting
elapsed = 3725.5
formatted_time = enlighten.format_time(elapsed)
print(f"Operation completed in {formatted_time}")
# Output: "Operation completed in 1h 02:05"

import enlighten

# Create progress bar with center-aligned description
pbar = enlighten.Counter(
    total=100,
    desc='Centered Progress',
    justify=enlighten.Justify.CENTER
)

# Create status bar with right-aligned text
status = enlighten.StatusBar(
    justify=enlighten.Justify.RIGHT
)

# Available justification options
print(enlighten.Justify.LEFT)    # 'ljust'
print(enlighten.Justify.CENTER)  # 'center'
print(enlighten.Justify.RIGHT)   # 'rjust'

import enlighten
import warnings

# Configure warning handling
warnings.filterwarnings('always', category=enlighten.EnlightenWarning)

# Enlighten will issue warnings for configuration issues
# For example, if trying to use features not supported in current environment
try:
    # Some operation that might trigger a warning
    manager = enlighten.Manager(some_unsupported_option=True)
except Exception as e:
    print(f"Configuration issue: {e}")

# Internal use in NotebookManager - normally not called directly
from blessed import Terminal
import enlighten._util

# Create HTML converter
term = Terminal()
converter = enlighten._util.HTMLConverter(term)

# Convert ANSI text to HTML
ansi_text = "\x1b[32mGreen text\x1b[0m with \x1b[1mbold\x1b[0m formatting"
html_output = converter.to_html(ansi_text)
css_styles = converter.style

# HTML output ready for notebook display
print(html_output)
print(css_styles)

import enlighten
import time

# Using format_time in custom status formats
status = enlighten.StatusBar(
    status_format='Uptime: {uptime} | Status: {status}'
)

start_time = time.time()

for i in range(10):
    current_uptime = time.time() - start_time
    status.update(
        uptime=enlighten.format_time(current_uptime),
        status=f'Running task {i+1}'
    )
    time.sleep(1)

status.close()

# Internal utility - normally not used directly
import enlighten._util

# Wrap iterator with look-ahead capability
data = range(10)
lookahead = enlighten._util.Lookahead(iter(data))

# Look ahead without consuming
print(lookahead[0])    # 0 (peek at next item)
print(lookahead[1:3])  # [1, 2] (peek at slice)

# Normal iteration still works
print(next(lookahead)) # 0 (consume first item)
print(next(lookahead)) # 1 (consume second item)

import enlighten
import warnings

# Capture enlighten warnings in your application
with warnings.catch_warnings(record=True) as w:
    warnings.simplefilter("always", enlighten.EnlightenWarning)
    
    # Operations that might generate warnings
    manager = enlighten.get_manager()
    pbar = manager.counter(total=100)
    
    # Check for any warnings
    if w:
        for warning in w:
            if issubclass(warning.category, enlighten.EnlightenWarning):
                print(f"Enlighten warning: {warning.message}")