require 'net/http'
require 'pp'
require 'rubygems'
require 'json'

class Hash
  def to_http_params
    results = []
    return results if self.empty?
    self.each do |key, val|
      results << "#{key}=#{URI.encode(val.to_s)}"
    end
    results.join('&')
  end
end

username = ARGV[0]
password = ARGV[1]
api_key  = ARGV[2]
list_name = ARGV[3]

if ! username || ! password || ! api_key || ! list_name
  print "
  
  Usage: ruby delete_lists.rb username password api_key list_name

  
"

  exit 1
end

#print "#{username}, #{password}, #{api_key}, #{list_name}\n"

# Look for the user's lists
Net::HTTP.version_1_2
req = Net::HTTP::Get.new("/users/#{username}/lists/creator.json?per_page=100&include_private=true")
req.basic_auth(username, password)

Net::HTTP.start('api.smart.fm', 80) {|http|
  res = http.request(req)

  JSON.parse(res.body).each { |item|
#    print "id: #{item['id']}\n"

    # Delete the list if it matches
    if item['title'] == list_name
      Net::HTTP.version_1_2
      req = Net::HTTP::Delete.new("/lists/#{item['id']}?api_key=#{api_key}")
      req.basic_auth(username, password)

      Net::HTTP.start('api.smart.fm', 80) {|http|
        res = http.request(req)

        print "Deleting list id #{item['id']}\n"

#        pp res
#        puts "list: #{res.body}\n"
      }
    end
  }
}