// Copyright Jorge Bucaran. All rights reserved. MIT license.
// deno-lint-ignore-file no-undef no-control-regex
let enabled = !("NO_COLOR" in process.env) &&
  ("FORCE_COLOR" in process.env ||
    process.platform === "win32" ||
    (process.stdout != null &&
      process.stdout.isTTY &&
      process.env.TERM &&
      process.env.TERM !== "dumb"));

const raw = (open, close, searchRegex, replaceValue) =>
  (s) =>
    enabled
      ? open +
        (~(s += "").indexOf(close, 4) // skip opening \x1b[
          ? s.replace(searchRegex, replaceValue)
          : s) +
        close
      : s;

const init = (open, close) => {
  return raw(
    `\x1b[${open}m`,
    `\x1b[${close}m`,
    new RegExp(`\\x1b\\[${close}m`, "g"),
    `\x1b[${open}m`,
  );
};

export const options = Object.defineProperty({}, "enabled", {
  get: () => enabled,
  set: (value) => (enabled = value),
});

export const reset = init(0, 0);
export const bold = raw("\x1b[1m", "\x1b[22m", /\x1b\[22m/g, "\x1b[22m\x1b[1m");
export const dim = raw("\x1b[2m", "\x1b[22m", /\x1b\[22m/g, "\x1b[22m\x1b[2m");
export const italic = init(3, 23);
export const underline = init(4, 24);
export const inverse = init(7, 27);
export const hidden = init(8, 28);
export const strikethrough = init(9, 29);
export const black = init(30, 39);
export const red = init(31, 39);
export const green = init(32, 39);
export const yellow = init(33, 39);
export const blue = init(34, 39);
export const magenta = init(35, 39);
export const cyan = init(36, 39);
export const white = init(37, 39);
export const gray = init(90, 39);
export const bgBlack = init(40, 49);
export const bgRed = init(41, 49);
export const bgGreen = init(42, 49);
export const bgYellow = init(43, 49);
export const bgBlue = init(44, 49);
export const bgMagenta = init(45, 49);
export const bgCyan = init(46, 49);
export const bgWhite = init(47, 49);
export const blackBright = init(90, 39);
export const redBright = init(91, 39);
export const greenBright = init(92, 39);
export const yellowBright = init(93, 39);
export const blueBright = init(94, 39);
export const magentaBright = init(95, 39);
export const cyanBright = init(96, 39);
export const whiteBright = init(97, 39);
export const bgBlackBright = init(100, 49);
export const bgRedBright = init(101, 49);
export const bgGreenBright = init(102, 49);
export const bgYellowBright = init(103, 49);
export const bgBlueBright = init(104, 49);
export const bgMagentaBright = init(105, 49);
export const bgCyanBright = init(106, 49);
export const bgWhiteBright = init(107, 49);