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require 'anemone'
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begin
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  # make sure that the first option is a URL we can crawl
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  root = URI(ARGV[0])
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rescue
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  puts <<-INFO
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Usage:
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  anemone pagedepth <url>
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Synopsis:
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  Crawls a site starting at the given URL and outputs a count of
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  the number of pages at each depth of the crawl.
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INFO
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  exit(0)
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end
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Anemone.crawl(root) do |anemone|
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  anemone.skip_links_like %r{^/c/$}, %r{^/stores/$}
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  anemone.after_crawl do |pages|
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    pages = pages.shortest_paths!(root).uniq!
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    depths = pages.values.inject({}) do |depths, page|
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      depths[page.depth] ||= 0
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      depths[page.depth] += 1
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      depths
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    end
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    depths.sort.each { |depth, count| puts "Depth: #{depth} Count: #{count}" }
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  end
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end
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