require 'rubygems'
require 'rfuzz/browser'
include RFuzz
require 'pstore'

if ARGV.length < 4
  puts "usage: ruby cl_watcher.rb city cat areaID \"search\""
  exit 1
end

city, cat, areaID, search = ARGV.shift, ARGV.shift, ARGV.shift, ARGV
href_seen = PStore.new("watcher_seen_links.pstore")
web = Browser.new("#{city}.craigslist.org")

loop do

  puts "Checking..."

  search.each do |query|
    puts "SEARCH: #{query}"
    web.start("/cgi-bin/search", :query => {"areaID" => areaID, "subAreaID" => "0","query" => query, "catAbbreviation" => cat, "minAsk" => "min", "maxAsk" => "max"})

    href_seen.transaction do
      web.links(/[0-9]*.html/).each do |link|
        href = link.attributes["href"]
        if !href_seen[href]
          puts href
          puts " -- " + link.children.join
          `firefox '#{href}'`
          href_seen[href] = link
        end
      end
    end
  end

  puts "----\nSleeping..."
  sleep 60 * (rand(10)+3)

end