pivotalcli/color.py

from typing import Any, Optional


class Color:
    BLACK = 0
    RED = 1
    GREEN = 2
    YELLOW = 3
    BLUE = 4
    MAGENTA = 5
    CYAN = 6
    WHITE = 7

    BRIGHT_BLACK = 8
    BRIGHT_RED = 9
    BRIGHT_GREEN = 10
    BRIGHT_YELLOW = 11
    BRIGHT_BLUE = 12
    BRIGHT_MAGENTA = 13
    BRIGHT_CYAN = 14
    BRIGHT_WHITE = 15

    def __init__(
        self, foreground: Optional[int], background: Optional[int] = None
    ) -> None:
        self.foreground = foreground
        self.background = background

    def print(self, *args: Any, end: str = "\n") -> None:
        print(self.format(*args), end=end)

    def format(self, *args: Any) -> str:
        # Create the color string.
        colors = []
        if self.foreground is not None:
            colors.append(f"38;5;{self.foreground}")
        if self.background is not None:
            colors.append(f"48;5;{self.background}")
        color_str = ";".join(colors)

        text = " ".join(str(a) for a in args)
        if not text:
            return ""

        # Reset the color as necessary.
        reset = []
        if self.foreground is not None:
            reset.append("39")
        if self.background is not None:
            reset.append("49")
        reset_str = ";".join(reset)

        return f"\033[{color_str}m{text}\033[{reset_str}m"