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module Metasploit
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  module Framework
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    module Compiler
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      module Headers
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        class Base
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          attr_accessor :loaded_dep
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          # Initializes the Base class for headers.
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          def initialize
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            # This is used to avoid loading the same dependency code twice
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            @loaded_dep = []
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          end
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          # Returns the header source code.
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          #
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          # @param lib_name [String] The file name of the header.
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          # @return [String]
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          def include(lib_name)
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            lib = lib_dep_map[lib_name]
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            unless lib
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              raise RuntimeError, "#{lib_name} not found"
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            end
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            # Load the dependencies first, and only once
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            dep = ''
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            lib.each do |f|
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              unless loaded_dep.include?(f)
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                dep_path = File.join(headers_path, f)
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                dep << File.read(dep_path) << "\n"
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                loaded_dep << f
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              end
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            end
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            # Load the headers
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            lib_path = File.join(headers_path, lib_name)
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            "#{dep}#{File.read(lib_path)}"
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          end
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        end
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      end
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    end
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  end
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end
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