module ActiveScraper

# File lib/active_scraper.rb, line 63
def self.build_usable_response(request, response)
  ActiveScraper::FakeHTTPartyResponse.new(request, response)
end

# File lib/active_scraper.rb, line 46
def self.create_request_and_fetch_response(uri, opts={})
  opts = normalize_hash(opts)
  # first, find or build the request
  request = find_or_build_request(uri, opts)
  # then find or build a matching response
  response = find_or_build_response(request, opts)
  # associate and save the two
  request.responses << response
  request.save
   
  obj = Hashie::Mash.new(request: request, response: response)
  
  return obj
end

# File lib/active_scraper.rb, line 69
def self.fetch_fresh(url, opts={})
   resp = HTTParty.get(url, opts)

   return ActiveScraper::ResponseObject.factory(resp)
end

# File lib/active_scraper.rb, line 23
def self.find_or_build_request(req, opts={})
  CachedRequest.find_or_build_from_uri(req, opts)
end

# File lib/active_scraper.rb, line 31
def self.find_or_build_response(cached_request, opts={})
  raise ArgumentError, "Only accepted CachedRequest, but was passed in a #{cached_request.class}" unless cached_request.is_a?(CachedRequest)
  opts = normalize_hash(opts)

  response = CachedResponse.find_cache_for_cached_request(cached_request, opts)

  if response.blank?
    fetched_obj = fetch_fresh(cached_request.uri, opts)
    response = CachedResponse.build_from_response_object(fetched_obj)
  end

  return response
end

# File lib/active_scraper.rb, line 11
def self.get(uri, options={})
  o = create_request_and_fetch_response(uri, options)

  return o.response
end

# File lib/active_scraper.rb, line 78
def self.normalize_hash(hsh)
  unless hsh.is_a?(HashWithIndifferentAccess)
    hsh = HashWithIndifferentAccess.new(hsh) 
  end

  return hsh
end