var googletag = googletag || {};
googletag.cmd = googletag.cmd || [];
var i_loaded_dfp = false;

/**
 * Based on width. So we know when to refresh ads by checking the selected index.
 */
function ogden_ad_determine_size_branch(obj) {
  var mysizes = obj._initsizes;
  browser_width = jQuery(window).width();
  var selected = 0, i;
  var maxselected = -1;
  for(i = 0; i < mysizes.length; i+=1) {
    //console.log(mysizes[i][0][0]+' < '+browser_width+' && '+maxselected+' < '+mysizes[i][0][0]);
    if(mysizes[i][0][0] <= browser_width && maxselected < mysizes[i][0][0]) {
      selected = i;
      maxselected = mysizes[i][0][0];
    }
  }
  return selected;
}

function ogden_ads_derive_slider_targetting() {
  if(window['ogden_ads_settings']['default_slider_path'] == '')  {
    window['ogden_ads_settings']['default_slider_path'] = 'Unknown/Unknown/Top_of_Stream';
  }
  var mypath = window['ogden_ads_settings']['default_slider_path'];
  var pathfinal = mypath.replace(/.*\//, '');
  var unitpath = jQuery('[data-unitpath]').attr('data-unitpath');
  if(unitpath) {
    mypath = unitpath.replace(/\/[^\/]*?$/, '/'+pathfinal);
  }
  return mypath;
}

/**
 * Create a unit with the specified classes (as string) and unit path.  It will be appended to the
 * target_location and will need to be activated with ogden_ready_ads after placement.
 */
function ogden_ads_create_unit(target_location, classes, path, size) {
  var ad_div = document.createElement('div');
  ad_div.id = 'aduni'+(Math.floor(Math.random()*1000000))+'c'+(Math.floor(Math.random()*1000000));
  ad_div.className = classes;
  ad_div.setAttribute('data-unitpath', path);
  ad_div.setAttribute('data-sizeset', size);
  jQuery(target_location).append(ad_div);
}

/**
 * function refresh ads in viewport.
 */
function ogden_ads_viewport_refresh(override_selector) {
  var selector = '.has-ogden-slot';
  if(override_selector) {
    selector = override_selector;
  }
  var slots = [];
  jQuery(selector).each(function() {
    var offsetpos = jQuery(this).offset();
    if( offsetpos && offsetpos.top ) {
      var top = offsetpos.top;
      var btm = jQuery(this).height() + offsetpos.top;
      var scrolltop = jQuery(window).scrollTop() + 50;
      var scrollbtm = jQuery(window).scrollTop() + jQuery(window).height() - 50;
      if(!(scrolltop > btm || scrollbtm < top)) {
        slots.push(this._slot);
      }
    }
  });
  if(slots.length && window.googletag && window.googletag.pubadsReady) {
    googletag.pubads().refresh(slots);
  }
}

function ogden_ready_ads(selector) {
  //If there are no WP DFP spots, DFP isn't loaded, so we should load it if we have placements.
  if(jQuery.fn.dfp == undefined && jQuery(selector).length > 0 && i_loaded_dfp == false) {
    (function() {
 	    var gads = document.createElement("script");
 	    gads.async = true;
 	    gads.type = "text/javascript";
 	    var useSSL = "https:" == document.location.protocol;
 	    gads.src = (useSSL ? "https:" : "http:") + "//www.googletagservices.com/tag/js/gpt.js";
 	    var node =document.getElementsByTagName("script")[0];
 	    node.parentNode.insertBefore(gads, node);
 	   })();
     i_loaded_dfp = true;
  }
  jQuery(selector).each(function() {
    //Only initialize once.
    if(this._already_adified != undefined) {
      return true;
    }
    //
    if(window['ogden_ads_settings'] == undefined) {
      if(window.console && window.console.log) {
        console.log("Ogden Ads: No ad settings.");
      }
    }
    if(window['ogden_ads_settings']['network_code'] == undefined) {
      if(window.console && window.console.log) {
        console.log("Ogden Ads: No ad network code set.");
      }
    }
    var network_code = window['ogden_ads_settings']['network_code'];
    this._last_size = [jQuery(this).width(),jQuery(window).height()];
    if(window['ogden_ads_sizes'][this.getAttribute('data-sizeset')] == undefined) {
      if(window.console && window.console.log) {
        console.log("Ogden Ads: Placement requested, but no matching sizeset.");
      }
    }
    var myself = this;
    googletag.cmd.push(function() {
      var i;
      var sizes = window['ogden_ads_sizes'][myself.getAttribute('data-sizeset')]['sizes'];
      myself._customTargeting = {};
      var custlists = myself.getAttribute('data-customtargeting');
      if(custlists != false && custlists != undefined) {
        custlists = custlists.split('/===/').map(function(a) {
          return a.split('||');
        });
        for(i = 0; i < custlists.length; i+=1) {
          if(custlists[i].length > 1) {
            if(myself._customTargeting[custlists[i][0]] == undefined) {
              myself._customTargeting[custlists[i][0]] = [custlists[i][1]];
            } else {
              myself._customTargeting[custlists[i][0]].push(custlists[i][1]);
            }
          }
        }
      }
      myself._initsizes = sizes;
      myself._mapping = googletag.sizeMapping();
      for(i = 0; i < sizes.length; i+=1) {
        myself._mapping.addSize(sizes[i][0], sizes[i][1]);
      }
      myself._mappingarray = myself._mapping.build();
      //console.log(myself._mappingarray);
      myself._slot = googletag.defineSlot("/"+network_code+"/"+myself.getAttribute('data-unitpath'), [[0, 0]], myself.id)
  	      .addService(googletag.pubads())
  	      .defineSizeMapping(myself._mappingarray);
      jQuery(myself).addClass('has-ogden-slot');
      for(i in myself._customTargeting) {
        myself._slot.setTargeting(i, myself._customTargeting[i]);
      }
      if(window._niche_targetting) {
        for(i in window._niche_targetting) {
          myself._slot.setTargeting(i, window._niche_targetting[i]);
        }
      }
      googletag.enableServices();
      googletag.display(myself.id);
      myself._branch = ogden_ad_determine_size_branch(myself);
      jQuery(myself).on("refresh_ad", function() {
        googletag.pubads().refresh([myself._slot]);
      });
    });
  });
};

jQuery(document).ready(function() {
  jQuery('body').on("show_ad", function(e) {
    if(e && jQuery(e.target).hasClass('delay_ogden_ads_container')) {
      var target = e.target;
      jQuery(target).addClass('ogden_ads_container');
      jQuery(target).removeClass('delay_ogden_ads_container');
      jQuery(target).addClass('was_delayed');
      ogden_ready_ads(target);
    }
    e.stopPropagation();
  });
});
//delay_ogden_ads_container

jQuery(document).ready(function() {
  ogden_ready_ads('.ogden_ads_container');
  var timer = -1;
  function ogden_ads_resize_handler() {
    ogden_ready_ads_resize('.ogden_ads_container');
  }
  jQuery(window).resize(function() {
    if(timer != -1) {
      clearTimeout(timer);
    }
    timer = setTimeout(ogden_ads_resize_handler, 300);
  });
});

function ogden_ready_ads_resize(selector) {
  jQuery(selector).each(function() {
    if(this._slot == undefined) {
      return true;
    }
    var current_branch = ogden_ad_determine_size_branch(this);
    if(current_branch != this._branch) {
      this._branch = current_branch;
      googletag.pubads().refresh([this._slot]);
    }
  });
}