/*

* # Semantic - Rating
* http://github.com/semantic-org/semantic-ui/
*
*
* Copyright 2014 Contributor
* Released under the MIT license
* http://opensource.org/licenses/MIT
*
*/

;(function ($, window, document, undefined) {

“use strict”;

$.fn.rating = function(parameters) {

var
  $allModules     = $(this),
  moduleSelector  = $allModules.selector || '',

  time            = new Date().getTime(),
  performance     = [],

  query           = arguments[0],
  methodInvoked   = (typeof query == 'string'),
  queryArguments  = [].slice.call(arguments, 1),
  returnedValue
;
$allModules
  .each(function() {
    var
      settings        = ( $.isPlainObject(parameters) )
        ? $.extend(true, {}, $.fn.rating.settings, parameters)
        : $.extend({}, $.fn.rating.settings),

      namespace       = settings.namespace,
      className       = settings.className,
      metadata        = settings.metadata,
      selector        = settings.selector,
      error           = settings.error,

      eventNamespace  = '.' + namespace,
      moduleNamespace = 'module-' + namespace,

      element         = this,
      instance        = $(this).data(moduleNamespace),

      $module         = $(this),
      $icon           = $module.find(selector.icon),

      module
    ;

    module = {

      initialize: function() {
        module.verbose('Initializing rating module', settings);

        if($icon.size() === 0) {
          module.setup.layout();
        }

        if(settings.interactive) {
          module.enable();
        }
        else {
          module.disable();
        }
        if(settings.initialRating) {
          module.debug('Setting initial rating');
          module.setRating(settings.initialRating);
        }
        if( $module.data(metadata.rating) ) {
          module.debug('Rating found in metadata');
          module.setRating( $module.data(metadata.rating) );
        }
        module.instantiate();
      },

      instantiate: function() {
        module.verbose('Instantiating module', settings);
        instance = module;
        $module
          .data(moduleNamespace, module)
        ;
      },

      destroy: function() {
        module.verbose('Destroying previous instance', instance);
        $module
          .removeData(moduleNamespace)
        ;
        $icon
          .off(eventNamespace)
        ;
      },

      refresh: function() {
        $icon   = $module.find(selector.icon);
      },

      setup: {
        layout: function() {
          var
            maxRating = $module.data(metadata.maxRating) || settings.maxRating
          ;
          module.debug('Generating icon html dynamically');
          $module
            .html($.fn.rating.settings.templates.icon(maxRating))
          ;
          module.refresh();
        }
      },

      event: {
        mouseenter: function() {
          var
            $activeIcon = $(this)
          ;
          $activeIcon
            .nextAll()
              .removeClass(className.selected)
          ;
          $module
            .addClass(className.selected)
          ;
          $activeIcon
            .addClass(className.selected)
              .prevAll()
              .addClass(className.selected)
          ;
        },
        mouseleave: function() {
          $module
            .removeClass(className.selected)
          ;
          $icon
            .removeClass(className.selected)
          ;
        },
        click: function() {
          var
            $activeIcon   = $(this),
            currentRating = module.getRating(),
            rating        = $icon.index($activeIcon) + 1,
            canClear      = (settings.clearable == 'auto')
             ? ($icon.size() === 1)
             : settings.clearable
          ;
          if(canClear && currentRating == rating) {
            module.clearRating();
          }
          else {
            module.setRating( rating );
          }
        }
      },

      clearRating: function() {
        module.debug('Clearing current rating');
        module.setRating(0);
      },

      getRating: function() {
        var
          currentRating = $icon.filter('.' + className.active).size()
        ;
        module.verbose('Current rating retrieved', currentRating);
        return currentRating;
      },

      enable: function() {
        module.debug('Setting rating to interactive mode');
        $icon
          .on('mouseenter' + eventNamespace, module.event.mouseenter)
          .on('mouseleave' + eventNamespace, module.event.mouseleave)
          .on('click' + eventNamespace, module.event.click)
        ;
        $module
          .removeClass(className.disabled)
        ;
      },

      disable: function() {
        module.debug('Setting rating to read-only mode');
        $icon
          .off(eventNamespace)
        ;
        $module
          .addClass(className.disabled)
        ;
      },

      setRating: function(rating) {
        var
          ratingIndex = (rating - 1 >= 0)
            ? (rating - 1)
            : 0,
          $activeIcon = $icon.eq(ratingIndex)
        ;
        $module
          .removeClass(className.selected)
        ;
        $icon
          .removeClass(className.selected)
          .removeClass(className.active)
        ;
        if(rating > 0) {
          module.verbose('Setting current rating to', rating);
          $activeIcon
            .prevAll()
            .andSelf()
              .addClass(className.active)
          ;
        }
        $.proxy(settings.onRate, element)(rating);
      },

      setting: function(name, value) {
        module.debug('Changing setting', name, value);
        if( $.isPlainObject(name) ) {
          $.extend(true, settings, name);
        }
        else if(value !== undefined) {
          settings[name] = value;
        }
        else {
          return settings[name];
        }
      },
      internal: function(name, value) {
        if( $.isPlainObject(name) ) {
          $.extend(true, module, name);
        }
        else if(value !== undefined) {
          module[name] = value;
        }
        else {
          return module[name];
        }
      },
      debug: function() {
        if(settings.debug) {
          if(settings.performance) {
            module.performance.log(arguments);
          }
          else {
            module.debug = Function.prototype.bind.call(console.info, console, settings.name + ':');
            module.debug.apply(console, arguments);
          }
        }
      },
      verbose: function() {
        if(settings.verbose && settings.debug) {
          if(settings.performance) {
            module.performance.log(arguments);
          }
          else {
            module.verbose = Function.prototype.bind.call(console.info, console, settings.name + ':');
            module.verbose.apply(console, arguments);
          }
        }
      },
      error: function() {
        module.error = Function.prototype.bind.call(console.error, console, settings.name + ':');
        module.error.apply(console, arguments);
      },
      performance: {
        log: function(message) {
          var
            currentTime,
            executionTime,
            previousTime
          ;
          if(settings.performance) {
            currentTime   = new Date().getTime();
            previousTime  = time || currentTime;
            executionTime = currentTime - previousTime;
            time          = currentTime;
            performance.push({
              'Name'           : message[0],
              'Arguments'      : [].slice.call(message, 1) || '',
              'Element'        : element,
              'Execution Time' : executionTime
            });
          }
          clearTimeout(module.performance.timer);
          module.performance.timer = setTimeout(module.performance.display, 100);
        },
        display: function() {
          var
            title = settings.name + ':',
            totalTime = 0
          ;
          time = false;
          clearTimeout(module.performance.timer);
          $.each(performance, function(index, data) {
            totalTime += data['Execution Time'];
          });
          title += ' ' + totalTime + 'ms';
          if(moduleSelector) {
            title += ' \'' + moduleSelector + '\'';
          }
          if($allModules.size() > 1) {
            title += ' ' + '(' + $allModules.size() + ')';
          }
          if( (console.group !== undefined || console.table !== undefined) && performance.length > 0) {
            console.groupCollapsed(title);
            if(console.table) {
              console.table(performance);
            }
            else {
              $.each(performance, function(index, data) {
                console.log(data['Name'] + ': ' + data['Execution Time']+'ms');
              });
            }
            console.groupEnd();
          }
          performance = [];
        }
      },
      invoke: function(query, passedArguments, context) {
        var
          object = instance,
          maxDepth,
          found,
          response
        ;
        passedArguments = passedArguments || queryArguments;
        context         = element         || context;
        if(typeof query == 'string' && object !== undefined) {
          query    = query.split(/[\. ]/);
          maxDepth = query.length - 1;
          $.each(query, function(depth, value) {
            var camelCaseValue = (depth != maxDepth)
              ? value + query[depth + 1].charAt(0).toUpperCase() + query[depth + 1].slice(1)
              : query
            ;
            if( $.isPlainObject( object[camelCaseValue] ) && (depth != maxDepth) ) {
              object = object[camelCaseValue];
            }
            else if( object[camelCaseValue] !== undefined ) {
              found = object[camelCaseValue];
              return false;
            }
            else if( $.isPlainObject( object[value] ) && (depth != maxDepth) ) {
              object = object[value];
            }
            else if( object[value] !== undefined ) {
              found = object[value];
              return false;
            }
            else {
              return false;
            }
          });
        }
        if ( $.isFunction( found ) ) {
          response = found.apply(context, passedArguments);
        }
        else if(found !== undefined) {
          response = found;
        }
        if($.isArray(returnedValue)) {
          returnedValue.push(response);
        }
        else if(returnedValue !== undefined) {
          returnedValue = [returnedValue, response];
        }
        else if(response !== undefined) {
          returnedValue = response;
        }
        return found;
      }
    };
    if(methodInvoked) {
      if(instance === undefined) {
        module.initialize();
      }
      module.invoke(query);
    }
    else {
      if(instance !== undefined) {
        module.destroy();
      }
      module.initialize();
    }
  })
;

return (returnedValue !== undefined)
  ? returnedValue
  : this
;

};

$.fn.rating.settings = {

name          : 'Rating',
namespace     : 'rating',

debug         : false,
verbose       : true,
performance   : true,

initialRating : 0,
interactive   : true,
maxRating     : 4,
clearable     : 'auto',

onRate        : function(rating){},

error         : {
  method    : 'The method you called is not defined',
  noMaximum : 'No maximum rating specified. Cannot generate HTML automatically'
},

metadata: {
  rating    : 'rating',
  maxRating : 'maxRating'
},

className : {
  active   : 'active',
  disabled : 'disabled',
  selected : 'selected',
  loading  : 'loading'
},

selector  : {
  icon : '.icon'
},

templates: {
  icon: function(maxRating) {
    var
      icon = 1,
      html = ''
    ;
    while(icon <= maxRating) {
      html += '<i class="icon"></i>';
      icon++;
    }
    return html;
  }
}

};

})( jQuery, window , document );