// Log of diagnostics -- node module version

var wrapper = function () {

var logger = {}

// /////////////////////// Logging

//

// bitmask levels

var TNONE = 0

var TERROR = 1

var TWARN = 2

var TMESG = 4

var TSUCCESS = 8

var TINFO = 16

var TDEBUG = 32

var TALL = 63

logger.level = TERROR + TWARN + TMESG

logger.ascending = false

logger.msg = function (str, type, typestr) {

if (!type) {

type = TMESG

typestr = 'mesg'

}

if (!(logger.level & type)) return // bitmask

if (typeof document !== 'undefined') {

// Not AJAX environment

var logArea = document.getElementById('status')

if (!logArea) return

// Local version to reduce dependencies

var escapeForXML = function (str) { // don't use library one in case ithasn't been loaded yet

return str.replace(/&/g, '&amp;').replace(/</g, '&lt;')

}

var addendum = document.createElement('span')

addendum.setAttribute('class', typestr)

var now = new Date()

addendum.innerHTML = now.getHours() + ':' + now.getMinutes() + ':' +

now.getSeconds() + ' [' + typestr + '] ' + escapeForXML(str) + '<br/>'

if (!logger.ascending) {

logArea.appendChild(addendum)

} else {

logArea.insertBefore(addendum, logArea.firstChild)

}

} else if (typeof console !== 'undefined') { // node.js

console.log(str)

} else {

var f = dump // || print

if (!f) throw new Error('log: No way to output message: ' + str)

f('Log: ' + str + '\n')

}

} // logger.msg

logger.warn = function (msg) { logger.msg(msg, TWARN, 'warn') }

logger.debug = function (msg) { logger.msg(msg, TDEBUG, 'dbug') }

logger.info = function (msg) { logger.msg(msg, TINFO, 'info') }

logger.error = function (msg) { logger.msg(msg, TERROR, 'eror') }

logger.success = function (msg) { logger.msg(msg, TSUCCESS, 'good') }

if (typeof alert !== 'undefined') {

logger.alert = alert

} else {

logger.alert = logger.warn

}

/** clear the log window **/

logger.clear = function () {

var x = document.getElementById('status')

if (!x) return

x.innerHTML = ''

// emptyNode(x);

} // clearStatus

/** set the logging level **/

logger.setLevel = function (x) {

logger.level = TALL

logger.debug('Log level is now ' + x)

logger.level = x

}

logger.dumpHTML = function () {

var l = logger.level

logger.level = TALL

logger.debug(document.innerHTML)

logger.level = l

}

return logger

}// wrapper

module.exports = wrapper()