invoice-fs/lib/out.js

Nostalgic command-line invoicing application producing plain text invoices and JSON data structures. Uses the file system as a database

var colors = require('colors');
/**
 * To differentiate between an accidental and actual use of console log
 *
 * @param {*} output
 */
exports.write = function(output) {
    console.log(output);
};

exports.error = function(output) {
    exports.write("\n" + exports.divider("=", 60).red);
    exports.write("ERROR: ".red + output.toString().red);
    exports.write(exports.divider("=", 60).red + "\n");
};

exports.notification = function(output) {
    exports.write("\n" + exports.divider("=", 60).yellow);
    exports.write(exports.centeredColumn(output.toString().yellow, 67));
    exports.write(exports.divider("=", 60).yellow + "\n");
};

exports.writeCliTitle = function(title) {
    exports.write("\n"+title+"\n".bold + exports.divider("=", 60).dim.grey);
};

exports.writeCliDivider = function() {
    exports.write(exports.divider("=", 60).dim.grey + "\n");
};

/**
 * Creates a left aligned column at a specified width
 *
 * @param {String} text
 * @param {Integer} width
 * @returns {string}
 */
exports.leftColumn = function(text, width) {
    return text + new Array(width - text.length + 1).join(' ');
};

/**
 * Creates a right aligned column at a specified width
 *
 * @param {String} text
 * @param {Integer} width
 * @returns {string}
 */
exports.rightColumn = function(text, width) {
    var columnPad = width - text.length + 1;
    if (columnPad < 0) {
        return text.slice(0, columnPad);
    } else {
        return new Array(width - text.length + 1).join(' ') + text;
    }
};

/**
 * Creates a center aligned column at a specified width
 *
 * @param {String} text
 * @param {Integer} width
 * @returns {string}
 */
exports.centeredColumn = function(text, width) {
    var offset = new Array(parseInt((width - text.length + 2) / 2, 10)).join(' ');
    return offset + text + offset + (text.length < width && text.length % 2 ? " " : "");
};

/**
 * Create a divider of char at a specified width
 *
 * @param {String} char
 * @param {Integer} width
 * @returns {String}
 */
exports.divider = function(char, width) {
    return new Array(width + 1).join(char);
};