"""Console and terminal utilities."""
import os
import sys
from typing import Any

from enrich.console import Console
from rich.style import Style
from rich.theme import Theme

theme = Theme(
    {
        "info": "dim cyan",
        "warning": "magenta",
        "danger": "bold red",
        "scenario": "green",
        "action": "green",
        "section_title": "bold cyan",
        "logging.level.notset": Style(dim=True),
        "logging.level.debug": Style(color="white", dim=True),
        "logging.level.info": Style(color="blue"),
        "logging.level.warning": Style(color="red"),
        "logging.level.error": Style(color="red", bold=True),
        "logging.level.critical": Style(color="red", bold=True),
        "logging.level.success": Style(color="green", bold=True),
    }
)


# Based on Ansible implementation
def to_bool(a: Any) -> bool:
    """Return a bool for the arg."""
    if a is None or isinstance(a, bool):
        return bool(a)
    if isinstance(a, str):
        a = a.lower()
    if a in ("yes", "on", "1", "true", 1):
        return True
    return False


def should_do_markup() -> bool:
    """Decide about use of ANSI colors."""
    py_colors = None

    # https://xkcd.com/927/
    for v in ["PY_COLORS", "CLICOLOR", "FORCE_COLOR", "ANSIBLE_FORCE_COLOR"]:
        value = os.environ.get(v, None)
        if value is not None:
            py_colors = to_bool(value)
            break

    # If deliverately disabled colors
    if os.environ.get("NO_COLOR", None):
        return False

    # User configuration requested colors
    if py_colors is not None:
        return to_bool(py_colors)

    term = os.environ.get("TERM", "")
    if "xterm" in term:
        return True

    if term == "dumb":
        return False

    # Use tty detection logic as last resort because there are numerous
    # factors that can make isatty return a misleading value, including:
    # - stdin.isatty() is the only one returning true, even on a real terminal
    # - stderr returting false if user user uses a error stream coloring solution
    return sys.stdout.isatty()


console = Console(
    force_terminal=should_do_markup(), theme=theme, record=True, redirect=True
)
# Define ANSIBLE_FORCE_COLOR if markup is enabled and another value is not
# already given. This assures that Ansible subprocesses are still colored,
# even if they do not run with a real TTY.
if should_do_markup():
    os.environ["ANSIBLE_FORCE_COLOR"] = os.environ.get("ANSIBLE_FORCE_COLOR", "1")