ts300/color-util.js

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const color = require('colors-cli/safe')

const COLOR_TITLE = ['样式', '前景色', '背景色', '前景色（明亮）', '背景色（明亮）'];
const COLOR_STYLE = ['bold', 'faint', 'italic', 'underline', 'blink', 'overline', 'inverse', 'conceal', 'strike'];
const COLOR_FOREGROUND = ['black', 'red', 'green', 'yellow', 'blue', 'magenta', 'cyan', 'white'];
const COLOR_BACKGROUND = ['black_b', 'red_b', 'green_b', 'yellow_b', 'blue_b', 'magenta_b', 'cyan_b', 'white_b'];
const COLOR_FOREGROUND_BRIGHT = ['black_bt', 'red_bt', 'green_bt', 'yellow_bt', 'blue_bt', 'magenta_bt', 'cyan_bt', 'white_bt'];
const COLOR_BACKGROUND_BRIGHT = ['black_bbt', 'red_bbt', 'green_bbt', 'yellow_bbt', 'blue_bbt', 'magenta_bbt', 'cyan_bbt', 'white_bbt'];
const STYLE = [COLOR_STYLE, COLOR_FOREGROUND, COLOR_BACKGROUND, COLOR_FOREGROUND_BRIGHT, COLOR_BACKGROUND_BRIGHT];

function printSupportStyle() {
    console.log('所支持的样式有：\n');
    let message = '';

    for (let i = 0; i < COLOR_TITLE.length; i++) {
        message = STYLE[i].reduce(function (pre, next) {
            return pre + color[next](next) + ' '
        }, COLOR_TITLE[i] + "： ");
        console.log(message);
    }
    // 换行
    console.log();
}

function checkStyle(styleName) {
    return STYLE.join(',').split(',').indexOf(styleName) !== -1;
}

function getColorMethod(commandStr = '') {
    let command = commandStr.replace(/\,/g, '.').split(".");
    let colorMethod = color
    for (let i = 0; i < command.length; i++) {
        if (checkStyle(command[i])) {
            colorMethod = colorMethod[command[i]];
        } else {
            throw new Error('\n不支持的样式：' + command[i]);
        }
    }
    return colorMethod;
}

module.exports = {
    color,
    printSupportStyle,
    checkStyle,
    getColorMethod
}