module Brief
  class Line
    attr_reader :_content,
                :number,
                :code

    attr_accessor :raw

    HeadingRegex      = /^#+\s*/
    CodeBlockRegex    = /^\s*```/

    def initialize(content, number, code=false)
      @_content = content
      @number = number + 1
      @code = code
    end

    def to_s
      content
    end

    def type
      case
      when code?
        "content"
      when _content.match(HeadingRegex)
        "heading"
      when _content.match(CodeBlockRegex)
        "code_block_marker"
      else
        "content"
      end
    end

    def content
      _content.gsub(HeadingRegex, '')
    end

    def raw
      @raw || _content
    end

    def heading?
      !code? && type == "heading"
    end

    def level
      _content.match(HeadingRegex).to_s.count('#')
    end

    def sort_index
      [level, number]
    end

    def line_number
      number
    end

    def content?
      type == "content" || type == "code_block_marker"
    end

    def code?
      !!@code
    end

  end
end