class Command

# File lib/YASP/command.rb, line 3
def initialize(name, args)
        @label = name

        if (args.last.is_a?(Hash))
                @args = args[0...-1]
                @opts = args.last
        else
                @args = args
                @opts = {}
        end

        @children = []
end

# File lib/YASP/command.rb, line 17
def <<(child)#TODO deferral mixin
        #TODO what the hell does 'deferral mixin' mean? why was I so bad at coments?
        @children << child
end

# File lib/YASP/command.rb, line 30
def argstring
        @args.map(&:inspect).join(", ").chomp(", ")
end

# File lib/YASP/command.rb, line 38
def indent(depth)
        "  "*depth
end

# File lib/YASP/command.rb, line 26
def label
        @label
end

# File lib/YASP/command.rb, line 22
def opts
        @opts
end

# File lib/YASP/command.rb, line 34
def optstring
        @opts.map { |key, value| "#{key}=#{value.inspect}"}.join(", ").chomp(", ")
end

# File lib/YASP/command.rb, line 42
def parse_arguments
        if @opts.empty?
                argstring
        elsif @args.empty?
                optstring
        else
                "#{argstring}, #{optstring}"
        end
end

# File lib/YASP/command.rb, line 52
def parse_children(depth)
        @children.map{ |c| c.to_scad(depth) }.join()
end

# File lib/YASP/command.rb, line 56
def parse_nested_children(depth)
        unless @children.empty?
                "{\n#{parse_children(depth)}#{indent(depth-1)}}"
        end
end

# File lib/YASP/command.rb, line 62
def to_scad(depth)
        if label
                "#{indent(depth)}#{label}(#{parse_arguments})#{parse_nested_children(depth+1)};\n"
        else
                parse_children(depth)
        end
end