/json/packages and /json/screenshots implemented

app/controllers/json_controller.rb

@@ -1,14 +1,20 @@
 class JsonController < ApplicationController
+  # JSON information on a single package
   def package
     @p = Package.find_by_name! params[:name]
   end
 
+  # JSON information on all packages
   def packages
+    @p = Package.all
   end
 
+  # JSON information on all screenshots
   def screenshots
+    @s = Screenshot.includes(:package)
   end
 
+  # JSON list of packages that do not have screenshots
   def packages_without_screenshots
   end
 end

app/views/json/packages.json.jbuilder

@@ -0,0 +1,6 @@
+json.cache! ['json_packages'], expires_in: 1.hour do
+  json.packages @p do |p|
+    json.extract! p, :maintainer, :name, :section, :maintainer_email, :homepage, :description
+    json.url package_url(p.name)
+  end
+end

app/views/json/screenshots.json.jbuilder

@@ -0,0 +1,10 @@
+json.cache! ['json_screenshots'], expires_in: 1.hour do
+  json.screenshots @s do |s|
+    p = s.package
+    json.extract! s, :version
+    json.extract! p, :maintainer, :name, :section, :maintainer_email, :homepage, :description
+    json.url package_url(p.name)
+    json.small_image_url "#{request.protocol}#{request.host_with_port}#{s.image.url(:thumb, timestamp: false)}"
+    json.large_image_url "#{request.protocol}#{request.host_with_port}#{s.image.url(:large, timestamp: false)}"
+  end
+end