module CouchRest::Commands::Generate

# File lib/couchrest/commands/generate.rb, line 49
def self.help
  helpstring = <<-GEN

  Usage: couchview generate directory design1 design2 design3 ...

  Couchview will create directories and example views for the design documents you specify.

  GEN
  helpstring.gsub(/^        /, '')
end

# File lib/couchrest/commands/generate.rb, line 7
      def self.run(options)
        directory    = options[:directory]
        design_names = options[:trailing_args]

        FileUtils.mkdir_p(directory)
        filename = File.join(directory, "lib.js")
        self.write(filename, "        // Put global functions here.
        // Include in your views with
        //
        //   //include-lib
")

        design_names.each do |design_name|
          subdirectory = File.join(directory, design_name)
          FileUtils.mkdir_p(subdirectory)
          filename = File.join(subdirectory, "sample-map.js")
          self.write(filename, "          function(doc) {
            // Keys is first letter of _id
            emit(doc._id[0], doc);
          }
")

          filename = File.join(subdirectory, "sample-reduce.js")
          self.write(filename, "          function(keys, values) {
            // Count the number of keys starting with this letter
            return values.length;
          }
")

          filename = File.join(subdirectory, "lib.js")
          self.write(filename, "          // Put functions specific to '#{design_name}' here.
          // Include in your views with
          //
          //   //include-lib
")
        end
      end

# File lib/couchrest/commands/generate.rb, line 60
def self.write(filename, contents)
  puts "Writing #{filename}"
  File.open(filename, "w") do |f|
    # Remove leading spaces
    contents.gsub!(/^        (  )?/, '')
    f.write contents
  end
end