class Compiler

# File lib/nginx-conf/compiler.rb, line 4
def initialize repeats
  @repeats = repeats
end

# File lib/nginx-conf/compiler.rb, line 8
def compile hash
  @indents = 0
  compile_hash_without_brackets hash
end

# File lib/nginx-conf/compiler.rb, line 13
def compile_elem object
  case object
  when Hash
    compile_hash object
  when Array
    object.map{ |o| compile_elem(o) }.join(' ')
  when -> (o) { o.respond_to? :to_s }
    object.to_s
  else
    raise "The object doesn't respond to to_s method.: #{o}"
  end
end

# File lib/nginx-conf/compiler.rb, line 26
def compile_hash hash
  s = "{\n"
  @indents += 1
  s += compile_hash_without_brackets hash
  @indents -= 1
  s + indent('}')
end

# File lib/nginx-conf/compiler.rb, line 46
def compile_hash_item key, values
  values = [values] if not values.is_a? Array
  values[0] = "(#{values[0]})" if key == :if

  values_str = compile_elem(values)
  indent(key.to_s + (values_str != '' ? ' ' + values_str : '') \
         + (values[-1].is_a?(Hash) ? "" : ";")) + "\n"
end

# File lib/nginx-conf/compiler.rb, line 34
def compile_hash_without_brackets hash
  hash.map do |key, values|
    if @repeats.include? key
      values.map do |values_per_item|
        compile_hash_item key, values_per_item
      end.join
    else
      compile_hash_item key, values
    end
  end.join
end

# File lib/nginx-conf/compiler.rb, line 55
def indent line
  @@spaces * @indents + line
end