// ==========================================================================
//
// Media
// Adds additional media type support
//
// ==========================================================================
(function($) {
  "use strict";

  // Formats matching url to final form

  var format = function(url, rez, params) {
    if (!url) {
      return;
    }

    params = params || "";

    if ($.type(params) === "object") {
      params = $.param(params, true);
    }

    $.each(rez, function(key, value) {
      url = url.replace("$" + key, value || "");
    });

    if (params.length) {
      url += (url.indexOf("?") > 0 ? "&" : "?") + params;
    }

    return url;
  };

  // Object containing properties for each media type

  var defaults = {
    youtube: {
      matcher: /(youtube\.com|youtu\.be|youtube\-nocookie\.com)\/(watch\?(.*&)?v=|v\/|u\/|embed\/?)?(videoseries\?list=(.*)|[\w-]{11}|\?listType=(.*)&list=(.*))(.*)/i,
      params: {
        autoplay: 1,
        autohide: 1,
        fs: 1,
        rel: 0,
        hd: 1,
        wmode: "transparent",
        enablejsapi: 1,
        html5: 1
      },
      paramPlace: 8,
      type: "iframe",
      url: "//www.youtube.com/embed/$4",
      thumb: "//img.youtube.com/vi/$4/hqdefault.jpg"
    },

    vimeo: {
      matcher: /^.+vimeo.com\/(.*\/)?([\d]+)(.*)?/,
      params: {
        autoplay: 1,
        hd: 1,
        show_title: 1,
        show_byline: 1,
        show_portrait: 0,
        fullscreen: 1,
        api: 1
      },
      paramPlace: 3,
      type: "iframe",
      url: "//player.vimeo.com/video/$2"
    },

    instagram: {
      matcher: /(instagr\.am|instagram\.com)\/p\/([a-zA-Z0-9_\-]+)\/?/i,
      type: "image",
      url: "//$1/p/$2/media/?size=l"
    },

    // Examples:
    // http://maps.google.com/?ll=48.857995,2.294297&spn=0.007666,0.021136&t=m&z=16
    // https://www.google.com/maps/@37.7852006,-122.4146355,14.65z
    // https://www.google.com/maps/@52.2111123,2.9237542,6.61z?hl=en
    // https://www.google.com/maps/place/Googleplex/@37.4220041,-122.0833494,17z/data=!4m5!3m4!1s0x0:0x6c296c66619367e0!8m2!3d37.4219998!4d-122.0840572
    gmap_place: {
      matcher: /(maps\.)?google\.([a-z]{2,3}(\.[a-z]{2})?)\/(((maps\/(place\/(.*)\/)?\@(.*),(\d+.?\d+?)z))|(\?ll=))(.*)?/i,
      type: "iframe",
      url: function(rez) {
        return (
          "//maps.google." +
          rez[2] +
          "/?ll=" +
          (rez[9] ? rez[9] + "&z=" + Math.floor(rez[10]) + (rez[12] ? rez[12].replace(/^\//, "&") : "") : rez[12] + "").replace(/\?/, "&") +
          "&output=" +
          (rez[12] && rez[12].indexOf("layer=c") > 0 ? "svembed" : "embed")
        );
      }
    },

    // Examples:
    // https://www.google.com/maps/search/Empire+State+Building/
    // https://www.google.com/maps/search/?api=1&query=centurylink+field
    // https://www.google.com/maps/search/?api=1&query=47.5951518,-122.3316393
    gmap_search: {
      matcher: /(maps\.)?google\.([a-z]{2,3}(\.[a-z]{2})?)\/(maps\/search\/)(.*)/i,
      type: "iframe",
      url: function(rez) {
        return "//maps.google." + rez[2] + "/maps?q=" + rez[5].replace("query=", "q=").replace("api=1", "") + "&output=embed";
      }
    }
  };

  $(document).on("objectNeedsType.fb", function(e, instance, item) {
    var url = item.src || "",
      type = false,
      media,
      thumb,
      rez,
      params,
      urlParams,
      paramObj,
      provider;

    media = $.extend(true, {}, defaults, item.opts.media);

    // Look for any matching media type
    $.each(media, function(providerName, providerOpts) {
      rez = url.match(providerOpts.matcher);

      if (!rez) {
        return;
      }

      type = providerOpts.type;
      provider = providerName;
      paramObj = {};

      if (providerOpts.paramPlace && rez[providerOpts.paramPlace]) {
        urlParams = rez[providerOpts.paramPlace];

        if (urlParams[0] == "?") {
          urlParams = urlParams.substring(1);
        }

        urlParams = urlParams.split("&");

        for (var m = 0; m < urlParams.length; ++m) {
          var p = urlParams[m].split("=", 2);

          if (p.length == 2) {
            paramObj[p[0]] = decodeURIComponent(p[1].replace(/\+/g, " "));
          }
        }
      }

      params = $.extend(true, {}, providerOpts.params, item.opts[providerName], paramObj);

      url =
        $.type(providerOpts.url) === "function" ? providerOpts.url.call(this, rez, params, item) : format(providerOpts.url, rez, params);

      thumb =
        $.type(providerOpts.thumb) === "function" ? providerOpts.thumb.call(this, rez, params, item) : format(providerOpts.thumb, rez);

      if (providerName === "youtube") {
        url = url.replace(/&t=((\d+)m)?(\d+)s/, function(match, p1, m, s) {
          return "&start=" + ((m ? parseInt(m, 10) * 60 : 0) + parseInt(s, 10));
        });
      } else if (providerName === "vimeo") {
        url = url.replace("&%23", "#");
      }

      return false;
    });

    // If it is found, then change content type and update the url

    if (type) {
      if (!item.opts.thumb && !(item.opts.$thumb && item.opts.$thumb.length)) {
        item.opts.thumb = thumb;
      }

      if (type === "iframe") {
        item.opts = $.extend(true, item.opts, {
          iframe: {
            preload: false,
            attr: {
              scrolling: "no"
            }
          }
        });
      }

      $.extend(item, {
        type: type,
        src: url,
        origSrc: item.src,
        contentSource: provider,
        contentType: type === "image" ? "image" : provider == "gmap_place" || provider == "gmap_search" ? "map" : "video"
      });
    } else if (url) {
      item.type = item.opts.defaultType;
    }
  });
})(window.jQuery || jQuery);