Much base work started

app/services/storage_adapters/base_adapter.rb

@@ -0,0 +1,46 @@
+module StorageAdapters
+  class BaseAdapter
+    def initialize(storage_location)
+      @storage_location = storage_location
+    end
+
+    # Scan for video files and return array of relative paths
+    def scan
+      raise NotImplementedError, "#{self.class} must implement #scan"
+    end
+
+    # Generate streaming URL for a video
+    def stream_url(video)
+      raise NotImplementedError, "#{self.class} must implement #stream_url"
+    end
+
+    # Check if file exists at path
+    def exists?(file_path)
+      raise NotImplementedError, "#{self.class} must implement #exists?"
+    end
+
+    # Check if storage can be read from
+    def readable?
+      raise NotImplementedError, "#{self.class} must implement #readable?"
+    end
+
+    # Check if storage can be written to
+    def writable?
+      @storage_location.writable?
+    end
+
+    # Write/copy file to storage
+    def write(source_path, dest_path)
+      raise NotImplementedError, "#{self.class} must implement #write"
+    end
+
+    # Download file to local temp path (for processing)
+    def download_to_temp(video)
+      raise NotImplementedError, "#{self.class} must implement #download_to_temp"
+    end
+
+    protected
+
+    attr_reader :storage_location
+  end
+end