// Copied and modified from https://gist.github.com/walter/3e852e8ebc87535a3c91

import Ember from 'ember';

import config from 'bo-client/config/environment';

export function initialize(application) {

  var OptionsReader = function OptionsReader() {

    this.readOptionsKeys = function() {

      var _mapType = function(val) {

        return "" === val ? null : "true" === val ? true : "false" === val ? false : (-1 !== val.indexOf(",") && (val = val.split(",")), val);

      };

      // Grab all the meta tags from the DOM.

      var metaTags = Ember.$("meta");

      var options = Ember.Object.create();

      var re = new RegExp(config.modulePrefix + '\.');

      // Process each of the discovered meta tags.

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

        var key = Ember.$(metaTags[i]).attr('name');

        var value = Ember.$(metaTags[i]).attr('content');

        // Does the meta tag start with our MODULE_PREFIX?

        if (re.test(key)) {

          var propertyName = Ember.String.camelize(key.substring(config.modulePrefix.length+1));

          options[propertyName] = _mapType(value);

        }

      }

      return options;

    };

  };

  var optionsReader = new OptionsReader();

  application.register('service:options', optionsReader.readOptionsKeys(), {singleton: true, instantiate: false});

}

export default {

  name: 'options',

  initialize

};