/*!

  * Copyright 2013 Twitter, Inc.

  *

  * Licensed under the Creative Commons Attribution 3.0 Unported License. For

  * details, see http://creativecommons.org/licenses/by/3.0/.

  */

 window.onload = function () { // wait for load in a dumb way because B-0

   var cw = '/*!\n * Bootstrap v3.0.3\n *\n * Copyright 2013 Twitter, Inc\n * Licensed under the Apache License v2.0\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Designed and built with all the love in the world @twitter by @mdo and @fat.\n */\n\n'

   function showError(msg, err) {

     $('<div id="bsCustomizerAlert" class="bs-customizer-alert">\

         <div class="container">\

           <a href="#bsCustomizerAlert" data-dismiss="alert" class="close pull-right">&times;</a>\

           <p class="bs-customizer-alert-text"><span class="glyphicon glyphicon-warning-sign"></span>' + msg + '</p>' +

           (err.extract ? '<pre class="bs-customizer-alert-extract">' + err.extract.join('\n') + '</pre>' : '') + '\

         </div>\

       </div>').appendTo('body').alert()

     throw err

   }

   function showCallout(msg, showUpTop) {

     var callout = $('<div class="bs-callout bs-callout-danger">\

        <h4>Attention!</h4>\

       <p>' + msg + '</p>\

     </div>')

     if (showUpTop) {

       callout.appendTo('.bs-docs-container')

     } else {

       callout.insertAfter('.bs-customize-download')

     }

   }

   function getQueryParam(key) {

     key = key.replace(/[*+?^$.\[\]{}()|\\\/]/g, "\\$&"); // escape RegEx meta chars

     var match = location.search.match(new RegExp("[?&]"+key+"=([^&]+)(&|$)"));

     return match && decodeURIComponent(match[1].replace(/\+/g, " "));

   }

   function createGist(configJson) {

     var data = {

       "description": "Bootstrap Customizer Config",

       "public": true,

       "files": {

         "config.json": {

           "content": configJson

         }

       }

     }

     $.ajax({

       url: 'https://api.github.com/gists',

       type: 'POST',

       dataType: 'json',

       data: JSON.stringify(data)

     })

     .success(function(result) {

       var origin = window.location.protocol + "//" + window.location.host

       history.replaceState(false, document.title, origin + window.location.pathname + '?id=' + result.id)

     })

     .error(function(err) {

       showError('<strong>Ruh roh!</strong> Could not save gist file, configuration not saved.', err)

     })

   }

   function getCustomizerData() {

     var vars = {}

     $('#less-variables-section input')

         .each(function () {

           $(this).val() && (vars[ $(this).prev().text() ] = $(this).val())

         })

     var data = {

       vars: vars,

       css: $('#less-section input:checked')  .map(function () { return this.value }).toArray(),

       js:  $('#plugin-section input:checked').map(function () { return this.value }).toArray()

     }

     if ($.isEmptyObject(data.vars) && !data.css.length && !data.js.length) return

     return data

   }

   function parseUrl() {

     var id = getQueryParam('id')

     if (!id) return

     $.ajax({

       url: 'https://api.github.com/gists/' + id,

       type: 'GET',

       dataType: 'json'

     })

     .success(function(result) {

       var data = JSON.parse(result.files['config.json'].content)

       if (data.js) {

         $('#plugin-section input').each(function () {

           $(this).prop('checked', ~$.inArray(this.value, data.js))

         })

       }

       if (data.css) {

         $('#less-section input').each(function () {

           $(this).prop('checked', ~$.inArray(this.value, data.css))

         })

       }

       if (data.vars) {

         for (var i in data.vars) {

           $('input[data-var="' + i + '"]').val(data.vars[i])

         }

       }

     })

     .error(function(err) {

       showError('Error fetching bootstrap config file', err)

     })

   }

   function generateZip(css, js, fonts, config, complete) {

     if (!css && !js) return showError('<strong>Ruh roh!</strong> No Bootstrap files selected.', new Error('no Bootstrap'))

     var zip = new JSZip()

     if (css) {

       var cssFolder = zip.folder('css')

       for (var fileName in css) {

         cssFolder.file(fileName, css[fileName])

       }

     }

     if (js) {

       var jsFolder = zip.folder('js')

       for (var fileName in js) {

         jsFolder.file(fileName, js[fileName])

       }

     }

     if (fonts) {

       var fontsFolder = zip.folder('fonts')

       for (var fileName in fonts) {

         fontsFolder.file(fileName, fonts[fileName], {base64: true})

       }

     }

     if (config) {

       zip.file('config.json', config)

     }

     var content = zip.generate({type:"blob"})

     complete(content)

   }

   function generateCustomCSS(vars) {

     var result = ''

     for (var key in vars) {

       result += key + ': ' + vars[key] + ';\n'

     }

     return result + '\n\n'

   }

   function generateFonts() {

     var glyphicons = $('#less-section [value="glyphicons.less"]:checked')

     if (glyphicons.length) {

       return __fonts

     }

   }

   // Returns an Array of @import'd filenames from 'bootstrap.less' in the order

   // in which they appear in the file.

   function bootstrapLessFilenames() {

     var IMPORT_REGEX = /^@import \"(.*?)\";$/

     var bootstrapLessLines = __less['bootstrap.less'].split('\n')

     for (var i = 0, imports = []; i < bootstrapLessLines.length; i++) {

       var match = IMPORT_REGEX.exec(bootstrapLessLines[i])

       if (match) imports.push(match[1])

     }

     return imports

   }

   function generateCSS() {

     var oneChecked = false

     var lessFileIncludes = {}

     $('#less-section input').each(function() {

       var $this = $(this)

       var checked = $this.is(':checked')

       lessFileIncludes[$this.val()] = checked

       oneChecked = oneChecked || checked

     })

     if (!oneChecked) return false

     var result = {}

     var vars = {}

     var css = ''

     $('#less-variables-section input')

         .each(function () {

           $(this).val() && (vars[ $(this).prev().text() ] = $(this).val())

         })

     $.each(bootstrapLessFilenames(), function(index, filename) {

       var fileInclude = lessFileIncludes[filename]

       // Files not explicitly unchecked are compiled into the final stylesheet.

       // Core stylesheets like 'normalize.less' are not included in the form

       // since disabling them would wreck everything, and so their 'fileInclude'

       // will be 'undefined'.

       if (fileInclude || (fileInclude == null)) css += __less[filename]

       // Custom variables are added after Bootstrap variables so the custom

       // ones take precedence.

       if (('variables.less' === filename) && vars) css += generateCustomCSS(vars)

     })

     css = css.replace(/@import[^\n]*/gi, '') //strip any imports

     try {

       var parser = new less.Parser({

           paths: ['variables.less', 'mixins.less']

         , optimization: 0

         , filename: 'bootstrap.css'

       }).parse(css, function (err, tree) {

         if (err) {

           return showError('<strong>Ruh roh!</strong> Could not parse less files.', err)

         }

         result = {

           'bootstrap.css'     : cw + tree.toCSS(),

           'bootstrap.min.css' : cw + tree.toCSS({ compress: true }).replace(/\n/g, '') // FIXME: remove newline hack once less.js upgraded to v1.4

         }

       })

     } catch (err) {

       return showError('<strong>Ruh roh!</strong> Could not parse less files.', err)

     }

     return result

   }

   function generateJavascript() {

     var $checked = $('#plugin-section input:checked')

     if (!$checked.length) return false

     var js = $checked

       .map(function () { return __js[this.value] })

       .toArray()

       .join('\n')

     return {

       'bootstrap.js': js,

       'bootstrap.min.js': cw + uglify(js)

     }

   }

   var inputsComponent = $('#less-section input')

   var inputsPlugin    = $('#plugin-section input')

   var inputsVariables = $('#less-variables-section input')

   $('#less-section .toggle').on('click', function (e) {

     e.preventDefault()

     inputsComponent.prop('checked', !inputsComponent.is(':checked'))

   })

   $('#plugin-section .toggle').on('click', function (e) {

     e.preventDefault()

     inputsPlugin.prop('checked', !inputsPlugin.is(':checked'))

   })

   $('#less-variables-section .toggle').on('click', function (e) {

     e.preventDefault()

     inputsVariables.val('')

   })

   $('[data-dependencies]').on('click', function () {

     if (!$(this).is(':checked')) return

     var dependencies = this.getAttribute('data-dependencies')

     if (!dependencies) return

     dependencies = dependencies.split(',')

     for (var i = 0; i < dependencies.length; i++) {

       var dependency = $('[value="' + dependencies[i] + '"]')

       dependency && dependency.prop('checked', true)

     }

   })

   $('[data-dependents]').on('click', function () {

     if ($(this).is(':checked')) return

     var dependents = this.getAttribute('data-dependents')

     if (!dependents) return

     dependents = dependents.split(',')

     for (var i = 0; i < dependents.length; i++) {

       var dependent = $('[value="' + dependents[i] + '"]')

       dependent && dependent.prop('checked', false)

     }

   })

   var $compileBtn = $('#btn-compile')

   var $downloadBtn = $('#btn-download')

   $compileBtn.on('click', function (e) {

     var configData = getCustomizerData()

     var configJson = JSON.stringify(configData, null, 2)

     e.preventDefault()

     $compileBtn.attr('disabled', 'disabled')

     generateZip(generateCSS(), generateJavascript(), generateFonts(), configJson, function (blob) {

       $compileBtn.removeAttr('disabled')

       saveAs(blob, "bootstrap.zip")

       createGist(configJson)

     })

   })

   // browser support alerts

   if (!window.URL && navigator.userAgent.toLowerCase().indexOf('safari') != -1) {

     showCallout("Looks like you're using safari, which sadly doesn't have the best support\

                  for HTML5 blobs. Because of this your file will be downloaded with the name <code>\"untitled\"</code>.\

                  However, if you check your downloads folder, just rename this <code>\"untitled\"</code> file\

                  to <code>\"bootstrap.zip\"</code> and you should be good to go!")

   } else if (!window.URL && !window.webkitURL) {

     $('.bs-docs-section, .bs-sidebar').css('display', 'none')

     showCallout("Looks like your current browser doesn't support the Bootstrap Customizer. Please take a second\

                 to <a href=\"https://www.google.com/intl/en/chrome/browser/\"> upgrade to a more modern browser</a>.", true)

   }

   parseUrl()

 }