'use strict'; var escapeStringRegexp = require('escape-string-regexp'); var ansiStyles = require('ansi-styles'); var stripAnsi = require('strip-ansi'); var hasAnsi = require('has-ansi'); var supportsColor = require('supports-color'); var defineProps = Object.defineProperties; var isSimpleWindowsTerm = process.platform === 'win32' && !/^xterm/i.test(process.env.TERM);

function Chalk(options) {

// detect mode if not set manually
this.enabled = !options || options.enabled === undefined ? supportsColor : options.enabled;

}

// use bright blue on Windows as the normal blue color is illegible if (isSimpleWindowsTerm) {

ansiStyles.blue.open = '\u001b[94m';

}

var styles = (function () {

var ret = {};

Object.keys(ansiStyles).forEach(function (key) {
        ansiStyles[key].closeRe = new RegExp(escapeStringRegexp(ansiStyles[key].close), 'g');

        ret[key] = {
                get: function () {
                        return build.call(this, this._styles.concat(key));
                }
        };
});

return ret;

})();

var proto = defineProps(function chalk() {}, styles);

function build(_styles) {

var builder = function () {
        return applyStyle.apply(builder, arguments);
};

builder._styles = _styles;
builder.enabled = this.enabled;
// __proto__ is used because we must return a function, but there is
// no way to create a function with a different prototype.
/* eslint-disable no-proto */
builder.__proto__ = proto;

return builder;

}

function applyStyle() {

// support varags, but simply cast to string in case there's only one arg
var args = arguments;
var argsLen = args.length;
var str = argsLen !== 0 && String(arguments[0]);

if (argsLen > 1) {
        // don't slice `arguments`, it prevents v8 optimizations
        for (var a = 1; a < argsLen; a++) {
                str += ' ' + args[a];
        }
}

if (!this.enabled || !str) {
        return str;
}

var nestedStyles = this._styles;
var i = nestedStyles.length;

// Turns out that on Windows dimmed gray text becomes invisible in cmd.exe,
// see https://github.com/chalk/chalk/issues/58
// If we're on Windows and we're dealing with a gray color, temporarily make 'dim' a noop.
var originalDim = ansiStyles.dim.open;
if (isSimpleWindowsTerm && (nestedStyles.indexOf('gray') !== -1 || nestedStyles.indexOf('grey') !== -1)) {
        ansiStyles.dim.open = '';
}

while (i--) {
        var code = ansiStyles[nestedStyles[i]];

        // Replace any instances already present with a re-opening code
        // otherwise only the part of the string until said closing code
        // will be colored, and the rest will simply be 'plain'.
        str = code.open + str.replace(code.closeRe, code.open) + code.close;
}

// Reset the original 'dim' if we changed it to work around the Windows dimmed gray issue.
ansiStyles.dim.open = originalDim;

return str;

}

function init() {

var ret = {};

Object.keys(styles).forEach(function (name) {
        ret[name] = {
                get: function () {
                        return build.call(this, [name]);
                }
        };
});

return ret;

}

defineProps(Chalk.prototype, init());

module.exports = new Chalk(); module.exports.styles = ansiStyles; module.exports.hasColor = hasAnsi; module.exports.stripColor = stripAnsi; module.exports.supportsColor = supportsColor;