require "./handler"

module Guff
  class BlogHandler < Handler
    MATCHES = [%r{
      ^/

      # match YYYY/MM/DD/SLUG.html
      (?<year>\d{4})
      /
      (?<month>\d{2})
      /
      (?<day>\d{2})
      /
      (?<slug>[a-z0-9._-]+)
      \.html

      $
    }x, %r{
      ^/

      # match YYYY/MM/DD
      (?<year>\d{4})
      /
      (?<month>\d{2})
      /
      (?<day>\d{2})
      /?

      $
    }x, %r{
      ^/

      # match YYYY/MM
      (?<year>\d{4})
      /
      (?<month>\d{2})
      /?

      $
    }x, %r{
      ^/

      # match YYYY
      (?<year>\d{4})
      /?

      $
    }x, %r{
      # match index
      ^/$
    }x]

    def call(context : HTTP::Server::Context)
      path = context.request.path || ""
      if md = MATCHES.reduce(nil) { |r, m| r || m.match(path) }
        context.response.puts "blog match: %s" % [md.to_s]
      else
        call_next(context)
      end
    end
  end
end