From 19a5191daae3d6083f906e81906905007daef1cb Mon Sep 17 00:00:00 2001
From: David Heinemeier Hansson <david@loudthinking.com>
Date: Mon, 3 Jul 2017 16:01:11 +0200
Subject: Simple idea for a mirror site

---
 lib/active_file/sites/mirror_site.rb | 44 ++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)
 create mode 100644 lib/active_file/sites/mirror_site.rb

(limited to 'lib/active_file')

diff --git a/lib/active_file/sites/mirror_site.rb b/lib/active_file/sites/mirror_site.rb
new file mode 100644
index 0000000000..86dd906be7
--- /dev/null
+++ b/lib/active_file/sites/mirror_site.rb
@@ -0,0 +1,44 @@
+class ActiveFile::Sites::MirrorSite < ActiveFile::Site
+  attr_reader :sites
+
+  def initialize(sites:)
+    @sites = sites
+  end
+
+  def upload(key, data)
+    perform_across_sites :upload, key, data
+  end
+
+  def download(key)
+    sites.detect { |site| site.exist?(key) }.download(key)
+  end
+
+  def delete(key)
+    perform_across_sites :delete, key
+  end
+
+  def exists?(key)
+    perform_across_sites(:exists?, key).any?
+  end
+
+
+  def byte_size(key)
+    primary_site.byte_size(key)
+  end
+
+  def checksum(key)
+    primary_site.checksum(key)
+  end
+
+  private
+    def primary_site
+      sites.first
+    end
+
+    def perform_across_sites(method, **args)
+      # FIXME: Convert to be threaded
+      sites.collect do |site|
+        site.send method, **args
+      end   
+    end
+end
-- 
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