universal-logger-browser/lib/styleable.js

Browser plugins for universal logger.

'use strict';

exports.__esModule = true;

var _typeof = typeof Symbol === "function" && typeof Symbol.iterator === "symbol" ? function (obj) { return typeof obj; } : function (obj) { return obj && typeof Symbol === "function" && obj.constructor === Symbol && obj !== Symbol.prototype ? "symbol" : typeof obj; };

var _extends = Object.assign || function (target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i]; for (var key in source) { if (Object.prototype.hasOwnProperty.call(source, key)) { target[key] = source[key]; } } } return target; }; /* eslint no-console: 0 */


var _objectToCss = require('./object-to-css');

var _objectToCss2 = _interopRequireDefault(_objectToCss);

var _styleableStyle = require('./styleable-style');

var _styleableStyle2 = _interopRequireDefault(_styleableStyle);

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { 'default': obj }; }

var noop = function noop() {};

var styleable = function styleable(options) {
    var _options = _extends({}, options),
        _options$colorized = _options.colorized,
        colorized = _options$colorized === undefined ? true : _options$colorized,
        _options$showSource = _options.showSource,
        showSource = _options$showSource === undefined ? true : _options$showSource,
        _options$showTimestam = _options.showTimestamp,
        showTimestamp = _options$showTimestam === undefined ? false : _options$showTimestam,
        _options$formatTimest = _options.formatTimestamp,
        formatTimestamp = _options$formatTimest === undefined ? function (t) {
        return new Date(t).toISOString();
    } : _options$formatTimest;

    options = options || {};
    options.style = options.style || {};
    options.style.level = options.style.level || {};
    var style = _extends({}, _styleableStyle2['default'], options.style, {
        level: _extends({}, _styleableStyle2['default'].level, options.style.level)
    });

    return function (context, messages, next) {
        if (typeof next !== 'function') {
            next = noop;
        }
        if (typeof console === 'undefined') {
            next();
            return;
        }

        var _context = _extends({}, context),
            namespace = _context.namespace,
            level = _context.level,
            _context$stackframes = _context.stackframes,
            stackframes = _context$stackframes === undefined ? [] : _context$stackframes;

        var timestamp = new Date().getTime();
        var formatters = [];
        var styles = [];

        if (showTimestamp) {
            var str = typeof formatTimestamp === 'function' ? formatTimestamp(timestamp) : timestamp;

            if (colorized) {
                formatters.push('%c ' + str + ' %c');
                styles.push(style.timestamp);
                styles.push('');
            } else {
                formatters.push(str);
            }
        }

        if (level && level.name) {
            if (colorized) {
                var _str = level.name.toUpperCase();
                formatters.push('%c' + _str + '%c');
                var styledLevel = style.level[level.name] || '';

                if ((typeof styledLevel === 'undefined' ? 'undefined' : _typeof(styledLevel)) === 'object') {
                    styles.push((0, _objectToCss2['default'])(styledLevel));
                } else {
                    styles.push(String(styledLevel));
                }
                styles.push('');
            } else {
                formatters.push(level.name.toUpperCase());
            }
        }

        if (namespace) {
            if (colorized) {
                formatters.push('%c' + namespace + '%c');
                styles.push(style.name);
                styles.push('');
            } else {
                formatters.push(namespace);
            }
        }

        messages = [formatters.join(' ')].concat(styles, messages);

        if (showSource && stackframes.length > 0) {
            var stackframeIndex = Math.min(4, stackframes.length - 1);
            var source = stackframes[stackframeIndex].source || '';
            messages = messages.concat(source);
        }

        var log = console.log || noop;
        Function.prototype.apply.call(log, console, messages);

        next();
    };
};

exports['default'] = styleable;