Merge pull request #22 from zach-chai/recording_previews

recording previews

app/assets/javascripts/landing.js

@@ -88,16 +88,30 @@
       },
       columns: [
         { title: "Date Recorded", data: "start_time" },
+        { title: "Presentation", data: "previews"},
         { title: "Duration", data: "duration" },
         { title: "Views", data: "playbacks" },
         { title: "Actions", data: "id" }
       ],
       columnDefs: [
         {
-          targets: 2,
+          targets: 1,
           render: function(data, type, row) {
             if (type === 'display') {
-              var str = "";
+              var str = '';
+              for(let i in data) {
+                str += '<img height="50" width="50" src="'+data[i].url+'" alt="'+data[i].alt+'"></img> ';
+              }
+              return str;
+            }
+            return data;
+          }
+        },
+        {
+          targets: 3,
+          render: function(data, type, row) {
+            if (type === 'display') {
+              var str = '';
               if (row.published) {
                 for(let i in data) {
                   str += '<a href="'+data[i].url+'">'+data[i].type+'</a> ';

app/lib/bbb_api.rb

@@ -75,7 +75,53 @@ module BbbApi
     if meeting_id
       options[:meetingID] = (Digest::SHA1.hexdigest(Rails.application.secrets[:secret_key_base]+meeting_id)).to_s
     end
-    bbb_safe_execute :get_recordings, options
+    res = bbb_safe_execute :get_recordings, options
+
+    # ensure recordings is an array
+    if !res[:recordings]
+      res[:recordings] = []
+    elsif !res[:recordings].is_a? Array
+      res[:recordings] = [res[:recordings]]
+    end
+
+    res[:recordings].each do |recording|
+      pref_preview = {}
+
+      # create a playbacks attribute on recording for playback formats
+      recording[:playbacks] = if !recording[:playback] || !recording[:playback][:format]
+        []
+      elsif recording[:playback][:format].is_a? Array
+        recording[:playback][:format]
+      else
+        [recording[:playback][:format]]
+      end
+
+      recording[:playbacks].each_with_index do |playback, index|
+        # create a previews attribute on playbacks for preview images
+        playback[:previews] = if !playback[:preview] || !playback[:preview][:images] || !playback[:preview][:images][:image]
+          []
+        elsif playback[:preview][:images][:image].is_a? Array
+          playback[:preview][:images][:image]
+        else
+          [playback[:preview][:images][:image]]
+        end
+        if playback[:type] == 'presentation' && playback[:previews].present?
+          pref_preview[:presentation] = index
+        elsif playback[:previews].present? && pref_preview[:other].blank?
+          pref_preview[:other] = index
+        end
+      end
+
+      # create a previews attribute on recordings for preview images
+      recording[:previews] = if pref_preview[:presentation]
+        recording[:playbacks][pref_preview[:presentation]][:previews]
+      elsif pref_preview[:other]
+        recording[:playbacks][pref_preview[:other]][:previews]
+      else
+        []
+      end
+    end
+    res
   end
 
   def bbb_update_recordings(id, published)

app/views/bbb/_preview.jbuilder

@@ -0,0 +1,4 @@
+json.url preview[:content]
+json.width preview[:width]
+json.height preview[:height]
+json.alt preview[:alt]

app/views/bbb/recordings.jbuilder

@@ -2,22 +2,26 @@ json.partial! 'bbb', messageKey: @messageKey, message: @message, status: @status
 unless @response.blank?
   json.is_owner current_user == @user
   json.recordings do
-    unless @response.is_a? Array
-      @response = [@response]
-    end
     json.array!(@response) do |recording|
       json.id recording[:recordID]
       json.name recording[:name]
       json.start_time recording[:startTime]
       json.end_time recording[:endTime]
       json.published recording[:published]
-      json.playbacks do
+      json.previews do
-        unless recording[:playback][:format].is_a? Array
+        json.array!(recording[:previews]) do |preview|
-          recording[:playback][:format] = [recording[:playback][:format]]
+          json.partial! 'preview', preview: preview
         end
-        json.array!(recording[:playback][:format]) do |playback|
+      end
+      json.playbacks do
+        json.array!(recording[:playbacks]) do |playback|
           json.type playback[:type]
           json.url playback[:url]
+          json.previews do
+            json.array!(playback[:previews]) do |preview|
+              json.partial! 'preview', preview: preview
+            end
+          end
         end
       end
     end